UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED
MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number			811-06279

Harris Associates Investment Trust
(Exact name of registrant as specified in charter)

111 South Wacker Drive, Suite 4600 Chicago, Illinois						60606-4319
(Address of principal executive offices)						(Zip code)

Kristi L. Rowsell Harris Associates L.P. 111 South Wacker Drive, Suite 4600 Chicago, Illinois 60606-4319					Ndenisarya M. Bregasi, Esq. K&L Gates LLP 1601 K Street, N.W. Washington, D.C. 20006-1600
(Name and address of agent for service)

Registrant’s telephone number, including area code:				(312) 646-3600

Date of fiscal year end:	09/30/18

Date of reporting period:		03/31/18

Item 1. Reports to Shareholders.

OAKMARK FUNDS

SEMI-ANNUAL REPORT | MARCH 31, 2018

OAKMARK FUND

OAKMARK SELECT FUND

OAKMARK EQUITY AND INCOME FUND

OAKMARK GLOBAL FUND

OAKMARK GLOBAL SELECT FUND

OAKMARK INTERNATIONAL FUND

OAKMARK INTERNATIONAL SMALL CAP FUND

Oakmark Funds

2018 Semi-Annual Report

TABLE OF CONTENTS

Fund Expenses					1
Commentary on Oakmark and Oakmark Select Funds					2
Oakmark Fund
Summary Information					4
Portfolio Manager Commentary					5
Schedule of Investments					6
Oakmark Select Fund
Summary Information					8
Portfolio Manager Commentary					9
Schedule of Investments					10
Oakmark Equity and Income Fund
Summary Information					12
Portfolio Manager Commentary					13
Schedule of Investments					15
Oakmark Global Fund
Summary Information					22
Portfolio Manager Commentary					23
Schedule of Investments					25
Oakmark Global Select Fund
Summary Information					28
Portfolio Manager Commentary					29
Schedule of Investments					30

Oakmark International Fund
Summary Information					32
Portfolio Manager Commentary					33
Schedule of Investments					34
Oakmark International Small Cap Fund
Summary Information					38
Portfolio Manager Commentary					39
Schedule of Investments					40
Financial Statements
Statements of Assets and Liabilities					44
Statements of Operations					46
Statements of Changes in Net Assets					48
Notes to Financial Statements					61
Financial Highlights					72
Disclosure Regarding Investment Advisory Agreements Approval					80
Disclosures and Endnotes					83
Trustees and Officers					85

FORWARD-LOOKING STATEMENT DISCLOSURE

One of our most important responsibilities as mutual fund managers is to communicate with shareholders in an open and direct manner. Some of our comments in our letters to shareholders are based on current management expectations and are considered "forward-looking statements." Actual future results, however, may prove to be different from our expectations. You can identify forward-looking statements by words such as "estimate", "may", "will", "expect", "believe",

"plan" and other similar terms. We cannot promise future returns. Our opinions are a reflection of our best judgment at the time this report is compiled, and we disclaim any obligation to update or alter forward-looking statements as a result of new information, future events, or otherwise.

Oakmark.com

Fund Expenses (Unaudited)

A shareholder of each Fund incurs ongoing costs, including investment advisory fees, transfer agent fees and other Fund expenses. The examples below are intended to help shareholders understand the ongoing costs (in dollars) of investing in each Fund and to compare these costs with the ongoing costs of investing in other funds.

The following table provides information about actual account values and actual Fund expenses as well as hypothetical account values and hypothetical fund expenses for shares of each Fund.

ACTUAL EXPENSES

The following table shows the expenses a shareholder would have paid on a $1,000 investment in each Fund from October 1, 2017 to March 31, 2018, as well as how much a $1,000 investment would be worth at the close of the period, assuming actual Fund returns and expenses. A shareholder can estimate expenses incurred for the period by dividing the account value at March 31, 2018, by $1,000 and multiplying the result by the number in the "Actual—Expenses Paid During Period" column shown below.

Shares of Oakmark International Small Cap Fund, invested for 90 days or less, may be charged a 2% redemption fee upon redemption. Please consult the Funds' prospectus at Oakmark.com for more information.

HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES

The following table provides information about hypothetical account values and hypothetical expenses for shares of each Fund based on actual expense ratios and an assumed rate of return of 5% per year before expenses, which are not the Funds' actual returns. The hypothetical account values and expenses may not be used to estimate the actual ending account balances or actual expenses shareholders paid for the period. Shareholders may use this information to compare the ongoing costs of investing in a Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds.

Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transaction costs, such as redemption fees. Therefore, the "Hypothetical—Expenses Paid During Period" column of the table is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. If these transaction costs were included, the total costs would have been higher.

			ACTUAL				HYPOTHETICAL (5% annual return before expenses)
	Beginning Account Value (10/1/17)		Ending Account Value (3/31/18)		Expenses Paid During Period*		Ending Account Value (3/31/18)		Expenses Paid During Period*		Annualized Expense Ratio
*Oakmark Fund*
Investor Class	$	1,000.00	$	1,050.50	$	4.29	$	1,020.74	$	4.23		0.84	%
Advisor Class	$	1,000.00	$	1,050.90	$	3.83	$	1,021.19	$	3.78		0.75	%
Institutional Class	$	1,000.00	$	1,051.20	$	3.58	$	1,021.44	$	3.53		0.70	%
Service Class	$	1,000.00	$	1,048.80	$	5.82	$	1,019.25	$	5.74		1.14	%
*Oakmark Select Fund*
Investor Class	$	1,000.00	$	1,000.60	$	4.79	$	1,020.14	$	4.84		0.96	%
Advisor Class	$	1,000.00	$	1,001.30	$	4.04	$	1,020.89	$	4.08		0.81	%
Institutional Class	$	1,000.00	$	1,001.40	$	3.94	$	1,020.99	$	3.98		0.79	%
Service Class	$	1,000.00	$	998.80	$	6.53	$	1,018.40	$	6.59		1.31	%
*Oakmark Equity and Income Fund*
Investor Class	$	1,000.00	$	1,025.30	$	3.94	$	1,021.04	$	3.93		0.78	%
Advisor Class	$	1,000.00	$	1,026.00	$	3.28	$	1,021.69	$	3.28		0.65	%
Institutional Class	$	1,000.00	$	1,026.50	$	2.98	$	1,021.99	$	2.97		0.59	%
Service Class	$	1,000.00	$	1,023.90	$	5.35	$	1,019.65	$	5.34		1.06	%
*Oakmark Global Fund*
Investor Class	$	1,000.00	$	1,012.40	$	5.72	$	1,019.25	$	5.74		1.14	%
Advisor Class	$	1,000.00	$	1,012.80	$	5.27	$	1,019.70	$	5.29		1.05	%
Institutional Class	$	1,000.00	$	1,013.30	$	4.87	$	1,020.09	$	4.89		0.97	%
Service Class	$	1,000.00	$	1,011.20	$	7.12	$	1,017.85	$	7.14		1.42	%
*Oakmark Global Select Fund*
Investor Class	$	1,000.00	$	995.70	$	5.57	$	1,019.35	$	5.64		1.12	%
Advisor Class	$	1,000.00	$	995.70	$	5.27	$	1,019.65	$	5.34		1.06	%
Institutional Class	$	1,000.00	$	996.60	$	4.78	$	1,020.14	$	4.84		0.96	%
*Oakmark International Fund*
Investor Class	$	1,000.00	$	995.50	$	4.73	$	1,020.19	$	4.78		0.95	%
Advisor Class	$	1,000.00	$	995.50	$	4.23	$	1,020.69	$	4.28		0.85	%
Institutional Class	$	1,000.00	$	996.10	$	3.93	$	1,020.99	$	3.98		0.79	%
Service Class	$	1,000.00	$	993.50	$	6.21	$	1,018.70	$	6.29		1.25	%
*Oakmark International Small Cap Fund*
Investor Class	$	1,000.00	$	981.50	$	6.62	$	1,018.25	$	6.74		1.34	%
Advisor Class	$	1,000.00	$	982.00	$	6.37	$	1,018.50	$	6.49		1.29	%
Institutional Class	$	1,000.00	$	982.40	$	5.73	$	1,019.15	$	5.84		1.16	%
Service Class	$	1,000.00	$	979.80	$	8.14	$	1,016.70	$	8.30		1.65	%

* Expenses are calculated using the Annualized Expense Ratio, multiplied by the average account value over the period, multiplied by 182 and divided by 365 (to reflect one-half year period)

Oakmark.com 1

Oakmark and Oakmark Select Funds March 31, 2018

Portfolio Manager Commentary

William C. Nygren, CFA

Portfolio Manager

oakmx@oakmark.com
oaklx@oakmark.com
oakwx@oakmark.com

At Oakmark, we are long-term investors. We attempt to identify growing businesses that are managed to benefit their shareholders. We will purchase stock in those businesses only when priced substantially below our estimate of intrinsic value. After purchase, we patiently wait for the gap between stock price and intrinsic value to close.

"What makes a decision great is not that it has a great outcome. A great decision is the result of a good process, and that process must include an attempt to accurately represent our own state of knowledge. That state of knowledge, in turn, is some variation of 'I'm not sure.'"

-Annie Duke, Thinking in Bets¹

Toward the end of most close games, you get a glimpse of decision making under great uncertainty. A college basketball game is made up of about 140 possessions, but when the game comes down to the wire, most of the analysis is about the possessions in the last few seconds. In the second-round NCAA Tournament game last month between Tennessee and Loyola-Chicago, Tennessee, trailing 61-59, got the ball with 28 seconds left. The shot clock was off, so the announcers said that Tennessee would no doubt hold the ball to end the game on a last-second shot, hoping for overtime. But Tennessee, apparently aware that data supports taking the first available good shot, got a basket and foul to take the lead 62-61 with 21 seconds remaining. The announcers dutifully questioned the coach's "risky decision to trust his defense." The coach soon appeared vindicated when the best shot Loyola could get was an off-balance jumper that clanked off the front rim with five seconds remaining. But then the unlikely happened: the ball bounced straight up in the air and fell down through the hoop for the Loyola win. Did the Tennessee coach make the wrong decision? Even the Loyola player who took the last shot realized how lucky he'd been. He said he knew the shot was short, but "the basketball gods helped that one go in." Thank you, Sister Jean!

Professional poker player turned author Annie Duke writes about many similar situations in her book, Thinking in Bets. Throughout the book, Duke uses the probabilistic thinking she mastered to become a champion poker player and applies it to everyday decision making. Duke says, "When we think probabilistically, we are less likely to use adverse results alone as proof that we made a decision error, because we recognize the possibility that the decision might have been good but luck and/or incomplete information (and a sample size of one) intervened." Just like it isn't wrong to double 11 against a 6 in blackjack even if the dealer makes an unlikely draw to 21, an unlikely bounce in a basketball game doesn't make it wrong to put the game in the hands of the defense.

Learning to say "I'm not sure" isn't easy, but it is imperative for successful decision making, especially in investing. Duke says, "Embracing 'I'm not sure' is difficult. We are trained in school that saying 'I don't know' is a bad thing." This creates a tendency to overstate our confidence and speak with certainty. Instead of saying that doubling 11 against a 6 will win two-thirds of the time, we say it's the "right" play, and then one-third of the time it appears to be the wrong advice. You see the same thing when sports commentators speak with certainty

about who will win an upcoming game, when meteorologists say if it will rain tomorrow and, yes, when portfolio managers predict the direction of the stock market.

But there is a big difference between answering "What is 9 X 8?" with "I'm not sure," compared to saying that, "I'm not sure if Citigroup stock will go up." The first is a fact; any answer other than 72 is simply wrong. The statement about whether or not a stock will go up is a statement about probabilities given estimates of business value and similarities to stocks that have gone up in the past. It is ironic that investment professionals, who are part of an industry where the best practitioners are wrong about 40% of the time, are among the guiltiest of overstating confidence about their opinions.

Duke says that her colleagues have a unique way of dealing with each other when one of them overstates a level of conviction. "As is often the case with poker players, a conversation about a hypothetical turned into an opportunity to propose a wager...A lot of good can come from someone saying, 'Wanna bet?'" In that respect, poker players are no different than the investment professionals at Oakmark.

Oakmark analysts are constantly making their best forecasts about an uncertain future. But they occasionally speak of those forecasts as if they are more certain than they actually are. When one of our analysts says that a company being researched is going to earn $5 per share next year, it is as likely as not that another analyst will respond with a comment like, "I'll take the under on $4.50." These bets are so common that the stakes don't even need to be spelled out. All of our analysts know that if they lose a bet, they'll be buying someone's lunch the next day. The realization that anything they say could result in having to back up their statement with a wager promotes an environment of probabilistic thinking that leads to better decision making. It doesn't take long for our new analysts to get comfortable with saying, "I'm not sure."

Another way in which poker and investing are similar is exposure to a constant flow of new information that allows participants to refine their beliefs. The most successful practitioners quickly adapt to new information. In Texas Hold 'Em, no starting hand is better than a pair of aces, but as more cards get dealt, even those aces may no longer produce a winning hand. As additional cards come out, seasoned players are constantly adjusting their win probabilities, where amateurs often stay attached to the strength of their starting hands. Duke writes, "There is no sin to finding out there is evidence that contradicts what we believe. The only sin is not using that evidence as objectively as possible to refine that belief going forward." She also cites studies that suggest one's ability to adjust to new information doesn't correlate with intelligence. Instead "It turns out the better you are with numbers, the better

See accompanying Disclosures and Endnotes on page 83.

2 OAKMARK FUNDS

Oakmark and Oakmark Select Funds March 31, 2018

Portfolio Manager Commentary (continued)

you are at spinning those numbers to conform to and support your beliefs."

That's a problem for investors who tend to be above average with numerical skills. It is so easy to tell yourself that an earnings shortfall is just temporary or that a competitor's strong new product launch will fade. And the smarter you are, the more convincing your story is. Anchoring to one's original thesis is a common bias for everyone and a very costly one for investors. This is something that our process at Oakmark focuses on. We know we have an anchoring bias, so we create hurdles that make it harder for analysts to maintain their original beliefs in the face of news that is contradictory. It doesn't eliminate the bias, but it diminishes the negative consequences.

Duke says that "Truthseeking, the desire to know the truth regardless of whether the truth aligns with the beliefs we currently hold, is not naturally supported by the way we process information...Instead of altering our beliefs to fit new information, we do the opposite, altering our interpretation of that information to fit our beliefs." That comment, which she learned through poker, could just as easily be applied to many situations, including investing. While it is usually considered an asset to stick to one's beliefs, it becomes a liability when new information suggests those initial beliefs were wrong.

At Oakmark, we are far from perfect at processing information and thinking probabilistically. However, we are aware of our tendencies to crave certainty or ignore information that we disagree with. So we make it a goal of our corporate culture and our investment process to reduce those biases in our decision making. Success at investing draws on many disciplines—it is fun to realize that we have as much to learn from a great poker player as we do from a great investor!

See accompanying Disclosures and Endnotes on page 83.

Oakmark.com 3

Oakmark Fund March 31, 2018

Summary Information

VALUE OF A $10,000 INVESTMENT

Since Inception - 08/05/91 (Unaudited)

PERFORMANCE

				Average Annual Total Returns (as of 3/31/18)
(Unaudited)	Total Return Last 3 Months			1-year			3-year			5-year			10-year			Since Inception			Inception Date
Oakmark Fund (Investor Class)		-0.88	%		15.34	%		11.14	%		13.78	%		11.76	%		12.88	%	08/05/91
S&P 500 Index		-0.76	%		13.99	%		10.78	%		13.31	%		9.49	%		9.72	%
Dow Jones Industrial Average³		-1.96	%		19.39	%		13.48	%		13.32	%		9.86	%		10.75	%
Lipper Large-Cap Value Fund Index⁴		-2.34	%		9.43	%		8.34	%		11.06	%		7.68	%		8.88	%
Oakmark Fund (Advisor Class)		-0.87	%		15.46	%		N/A			N/A			N/A			16.26	%	11/30/16
Oakmark Fund (Institutional Class)		-0.85	%		15.50	%		N/A			N/A			N/A			16.28	%	11/30/16
Oakmark Fund (Service Class)		-0.96	%		15.01	%		10.80	%		13.43	%		11.44	%		8.49	%	04/05/01

The graph and table above do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

Past performance is no guarantee of future results. The performance data quoted represents past performance. Current performance may be lower or higher than the performance data quoted. Total return includes change in share prices and, in each case, includes reinvestment of dividends and capital gain distributions. The investment return and principal value vary so that an investor's shares when redeemed may be worth more or less than the original cost. To obtain the most recent month-end performance, please visit Oakmark.com.

TOP TEN EQUITY HOLDINGS⁵	% of Net Assets
Citigroup, Inc.		3.2
Alphabet Inc., Class C		3.0
Bank of America Corp.		2.8
MasterCard, Inc., Class A		2.6
Intel Corp.		2.6
TE Connectivity, Ltd.		2.5
Capital One Financial Corp.		2.5
Apple, Inc.		2.5
Fiat Chrysler Automobiles N.V.		2.5
Ally Financial, Inc.		2.4
FUND STATISTICS
Ticker*	OAKMX
Number of Equity Holdings	55
Net Assets	$19.4 billion
Weighted Average Market Cap	$142.9 billion
Median Market Cap	$50.9 billion
Gross Expense Ratio - Investor Class (as of 09/30/17)*	0.90%
Net Expense Ratio - Investor Class (as of 09/30/17)*†	0.86%

* This information is related to the Investor Class. Please visit Oakmark.com for information related to the Advisor, Institutional and Service Classes.

† The net expense ratio reflects a contractual advisory fee waiver agreement through January 28, 2019.

SECTOR ALLOCATION	% of Net Assets
Financials		24.8
Information Technology		23.6
Consumer Discretionary		17.1
Industrials		9.2
Health Care		8.3
Consumer Staples		8.1
Energy		4.8
Short-Term Investments and Other		4.1

See accompanying Disclosures and Endnotes on page 83.

4 OAKMARK FUNDS

Oakmark Fund March 31, 2018

Portfolio Manager Commentary

William C. Nygren, CFA

Portfolio Manager

oakmx@oakmark.com

Kevin Grant, CFA

Portfolio Manager

oakmx@oakmark.com

With a strong start to the quarter, the Fund hit an all-time high adjusted NAV in January, the seventh quarter in a row of new Fund highs. The subsequent decline in the market and the Fund, however, resulted in a small decline (0.9% decline vs. a decline of 0.8% for the S&P 500)². Volatility returned to the market, as concerns about inflation, higher interest rates and a global trade war caused the S&P 500's returns to range from +8% to –4% during the quarter. While we remain focused on long-term business fundamentals as we evaluate potential investments, we don't mind taking advantage of higher volatility to increase exposure to high-quality businesses at more attractive prices. During the quarter, we added three new names to the portfolio (see below), and we increased weightings in other companies, including CVS Health and American Airlines.

Our best contributing sectors during the first quarter were consumer discretionary and information technology. Collectively, they accounted for 42% of our equity investments at the end of the quarter. Although financials, our highest weighted sector, enjoyed a strong 2017, that sector's performance turned negative during the quarter. Netflix and Mastercard were our best individual contributors for the quarter, up 54% and 16%, respectively. Our lowest contributing sectors for the quarter were industrials and financials, and our worst contributing securities were General Electric and Comcast. We added new positions in Facebook, Flex and Regeneron, and we eliminated positions in AutoNation, JPMorgan Chase and Whirlpool. JPMorgan Chase reached our estimate of intrinsic value, and we sold AutoNation and Whirlpool after we reassessed their return potential.

Facebook, Inc. (FB-$160)

Facebook controls the world's most dominant social networking platforms, Facebook and Instagram. The company's unprecedented global reach and infamous ad-targeting capabilities have made Facebook one of the most sought after and effective advertising platforms ever created. More recently, a considerable amount of negative press has surrounded the company, as has happened occasionally in the past. Facebook's business has repeatedly withstood these historical setbacks, due in part to its superior products, powerful network effect and track record of out-innovating, replicating or acquiring its would-be competitors. Without ascribing value to the company's non-earning assets, which include messaging platforms WhatsApp and Messenger (among others), Facebook is trading at less than 15x next year's earnings (excluding net cash), a discount to the S&P 500 Index. This is a very attractive valuation for a company that is projected to grow its revenue well in excess of 20% for the foreseeable future. We believe that Facebook's normalized operating margin is substantially higher than what it reports, as the company continues to invest heavily in a variety of growth initiatives.

Flex Ltd. (FLEX-$16)

Flex is undergoing a business transformation that should result in structurally higher returns on invested capital. A decade ago, the company, then known as Flextronics, looked like a classic contract manufacturer. Like its peers, it had a concentrated customer base, composed almost entirely of electronics companies, and it would manufacture products to meet customer specifications. Contract manufacturers have few meaningful competitive advantages in the low-margin manufacturing business, as their main value-add is locating production in low-cost regions. However, since Mike McNamara took over as CEO in 2006, Flex has been investing in what it calls "sketch-to-scale" capabilities, in which Flex's engineers are actually involved in the design phase of customers' products. This is a better business than contract manufacturing due to higher barriers to entry, stickier customer relationships and higher profit margins. Sketch-to-scale arrangements account for about 23% of revenues today and should almost double to 40% by 2020. In our view, this business shift and the accompanying boosts to both margin and ROIC are not priced into the stock, which trades for less than 14x next year's consensus EPS⁶ after adding back intangible amortization.

Regeneron Pharmaceuticals (REGN-$345)

Regeneron is a biotech company with industry-leading research and development (R&D) productivity and a proven management team. The company is led by its founder Len Schleifer who maintains a culture focused on internal development of novel new drugs. Schleifer also holds a significant equity stake in the company. Over the past decade, Regeneron has received approval for six drugs, all of which were developed in-house. Regeneron prices its drugs responsibly, and the company has never initiated a price increase. Recent drug approvals provide a strong path for long-term growth, and we expect that its largest drug, Eylea, will be sustainable for at least several more years. Regeneron spends significantly more than its peers on R&D, and its selling, general and administrative (SG&A) spending is elevated, as a result of several recent drug launches. We believe Regeneron's R&D spending provides a great return on investment, and we expect launch costs to normalize over time. Although the company's consensus P/E⁷ multiple appears high, if its R&D and SG&A costs are adjusted to average levels, Regeneron would trade at a low-teens P/E. We believe this is a compelling valuation for a growing business with a strong management team that is aligned with shareholders.

See accompanying Disclosures and Endnotes on page 83.

Oakmark.com 5

Oakmark Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands)

	Shares		Value
COMMON STOCKS - 95.9%
FINANCIALS - 24.8%
DIVERSIFIED FINANCIALS - 11.9%
Capital One Financial Corp.		5,063	$	485,118
Ally Financial, Inc.		17,435		473,360
State Street Corp.		4,700		468,731
The Bank of New York Mellon Corp.		6,320		325,651
The Goldman Sachs Group, Inc.		1,105		278,305
Moody's Corp.		1,706		275,254
				2,306,419
BANKS - 7.9%
Citigroup, Inc.		9,130		616,275
Bank of America Corp.		18,300		548,817
Wells Fargo & Co.		7,110		372,635
				1,537,727
INSURANCE - 5.0%
American International Group, Inc.		8,180		445,155
Aon PLC		2,590		363,455
Aflac, Inc.		3,558		155,698
				964,308
				4,808,454
INFORMATION TECHNOLOGY - 23.6%
SOFTWARE & SERVICES - 13.4%
Alphabet, Inc., Class C (a)		558		576,003
MasterCard, Inc., Class A		2,920		511,467
Visa, Inc., Class A		3,735		446,781
Oracle Corp.		8,765		400,999
Automatic Data Processing, Inc.		3,320		376,754
Facebook, Inc., Class A (a)		1,200		191,748
Alphabet, Inc., Class A (a)		93		96,550
				2,600,302
TECHNOLOGY HARDWARE & EQUIPMENT - 6.1%
TE Connectivity, Ltd.		4,936		493,071
Apple, Inc.		2,887		484,381
Flex, Ltd. (a)		12,000		195,960
				1,173,412
SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT - 4.1%
Intel Corp.		9,655		502,832
Texas Instruments, Inc.		2,720		282,581
				785,413
				4,559,127
CONSUMER DISCRETIONARY - 17.1%
MEDIA - 5.4%
Comcast Corp., Class A		12,438		425,020
Charter Communications, Inc., Class A (a)		1,200		373,464
News Corp., Class A		15,401		243,332
				1,041,816

	Shares		Value
RETAILING - 5.1%
Netflix, Inc. (a)		1,550	$	457,792
Liberty Interactive Corp. QVC Group, Class A (a)		12,115		304,945
Booking Holdings, Inc. (a)		110		228,843
				991,580
AUTOMOBILES & COMPONENTS - 4.9%
Fiat Chrysler Automobiles N.V.		23,160		475,245
General Motors Co.		6,850		248,929
Aptiv PLC		2,200		186,934
Delphi Technologies PLC		733		34,943
Harley-Davidson, Inc.		17		728
				946,779
CONSUMER SERVICES - 1.7%
MGM Resorts International		9,400		329,188
				3,309,363
INDUSTRIALS - 9.2%
CAPITAL GOODS - 5.5%
Parker-Hannifin Corp.		2,439		417,187
General Electric Co.		25,050		337,674
Caterpillar, Inc.		1,150		169,487
Cummins, Inc.		870		141,018
				1,065,366
TRANSPORTATION - 3.7%
American Airlines Group, Inc.		7,700		400,092
FedEx Corp.		1,330		319,346
				719,438
				1,784,804
HEALTH CARE - 8.3%
HEALTH CARE EQUIPMENT & SERVICES - 7.0%
HCA Healthcare, Inc.		4,316		418,603
Baxter International, Inc.		5,300		344,712
UnitedHealth Group, Inc.		1,545		330,630
Medtronic PLC		3,190		255,902
				1,349,847
PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES - 1.3%
Regeneron Pharmaceuticals, Inc. (a)		744		256,135
				1,605,982
CONSUMER STAPLES - 8.1%
FOOD, BEVERAGE & TOBACCO - 4.0%
Diageo PLC (b)		3,100		419,802
Nestlé SA (b)		4,565		360,863
				780,665
HOUSEHOLD & PERSONAL PRODUCTS - 2.1%
Unilever PLC (b)		7,163		397,977
FOOD & STAPLES RETAILING - 2.0%
CVS Health Corp.		6,300		391,923
				1,570,565

See accompanying Notes to Financial Statements.

6 OAKMARK FUNDS

Oakmark Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands) (continued)

	Shares			Value
COMMON STOCKS - 95.9% (continued)
ENERGY - 4.8%
Anadarko Petroleum Corp.		5,600		$	338,296
Apache Corp.		8,540			328,614
National Oilwell Varco, Inc.		5,929			218,243
Chesapeake Energy Corp. (a)		15,000			45,300
					930,453
TOTAL COMMON STOCKS - 95.9% (COST $11,371,664)					18,568,748
	Par Value			Value
SHORT-TERM INVESTMENTS - 4.4%
U.S. GOVERNMENT BILL - 3.1%
United States Treasury Bill, 1.52% - 1.62%, due 04/12/18 - 05/10/18 (c) (Cost $599,281)	$	600,000			599,281
GOVERNMENT AND AGENCY SECURITIES - 1.0%
Federal National Mortgage Association, 1.47%, due 04/02/18 - 04/03/18 (c) (Cost: $199,992)		200,000			199,992
REPURCHASE AGREEMENT - 0.3%
Fixed Income Clearing Corp. Repurchase Agreement, 0.90% dated 03/29/18 due 04/02/18, repurchase price $57,438, collateralized by a United States Treasury Note, 2.000% due 11/15/21, value plus accrued interest of $58,582 (Cost: $57,432)		57,432			57,432
TOTAL SHORT-TERM INVESTMENTS - 4.4% (COST $856,705)					856,705
TOTAL INVESTMENTS - 100.3% (COST $12,228,369)					19,425,453
Foreign Currencies (Cost $0) - 0.0% (d)					0	(e)
Liabilities In Excess of Other Assets - (0.3)%					(64,147	)
TOTAL NET ASSETS - 100.0%				$	19,361,306
	Shares			Value
CALL OPTIONS WRITTEN - 0.0% (d)
RETAILING - 0.0% (d)
Netflix, Inc., Strike Price $350.00, Expires 9/21/2018		(100	)		(1,720	)
TOTAL CALL OPTIONS WRITTEN (PREMIUMS RECEIVED $(3,254)) - 0.0%					(1,720	)

(a) Non-income producing security

(b) Sponsored American Depositary Receipt

(d) Amount rounds to less than 0.1%.

(e) Amount rounds to less than $1,000.

See accompanying Notes to Financial Statements.

Oakmark.com 7

Oakmark Select Fund March 31, 2018

Summary Information

VALUE OF A $10,000 INVESTMENT

Since Inception - 11/01/96 (Unaudited)

PERFORMANCE

				Average Annual Total Returns (as of 03/31/18)
(Unaudited)	Total Return Last 3 Months			1-year			3-year			5-year			10-year			Since Inception			Inception Date
Oakmark Select Fund (Investor Class)		-3.89	%		7.98	%		7.69	%		12.62	%		11.19	%		12.58	%	11/01/96
S&P 500 Index		-0.76	%		13.99	%		10.78	%		13.31	%		9.49	%		8.39	%
Lipper Multi-Cap Value Fund Index⁸		-2.87	%		7.30	%		6.71	%		10.16	%		7.49	%		7.65	%
Oakmark Select Fund (Advisor Class)		-3.85	%		8.12	%		N/A			N/A			N/A			10.62	%	11/30/16
Oakmark Select Fund (Institutional Class)		-3.85	%		8.16	%		N/A			N/A			N/A			10.65	%	11/30/16
Oakmark Select Fund (Service Class)		-3.98	%		7.68	%		7.35	%		12.27	%		10.89	%		9.33	%	12/31/99

The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

TOP TEN EQUITY HOLDINGS⁵	% of Net Assets
CBRE Group, Inc., Class A		8.1
Alphabet, Inc., Class C		7.5
TE Connectivity, Ltd.		7.2
Fiat Chrysler Automobiles N.V.		6.6
Citigroup, Inc.		5.6
Ally Financial, Inc.		5.1
American International Group, Inc.		5.1
MasterCard, Inc., Class A		5.0
MGM Resorts International		4.6
Charter Communications, Inc., Class A		4.2
FUND STATISTICS
Ticker*	OAKLX
Number of Equity Holdings	22
Net Assets	$6.1 billion
Weighted Average Market Cap	$129.5 billion
Median Market Cap	$37.5 billion
Gross Expense Ratio - Investor Class (as of 09/30/17)*	1.03%
Net Expense Ratio - Investor Class (as of 09/30/17)*†	0.96%

* This information is related to the Investor Class. Please visit Oakmark.com for information related to the Advisor, Institutional and Service Classes.

† The net expense ratio reflects a contractual advisory fee waiver agreement through January 28, 2019.

SECTOR ALLOCATION	% of Net Assets
Information Technology		24.8
Financials		23.3
Consumer Discretionary		23.2
Energy		8.2
Real Estate		8.1
Industrials		6.3
Short-Term Investments and Other		6.1

See accompanying Disclosures and Endnotes on page 83.

8 OAKMARK FUNDS

Oakmark Select Fund March 31, 2018

Portfolio Manager Commentary

William C. Nygren, CFA

Portfolio Manager

oaklx@oakmark.com

Anthony P. Coniaris, CFA

Portfolio Manager

oaklx@oakmark.com

Win Murray

Portfolio Manager

oaklx@oakmark.com

For the quarter, the Oakmark Select Fund declined 3.9%, compared to a 0.8% decline in the S&P 500 Index². We are not satisfied with either the absolute or relative return. Long-time fund holders (ourselves included) understand that a relatively concentrated portfolio like Oakmark Select is capable of volatile quarterly results as we focus on maximizing returns over a multi-year, not multi-month, timeframe. We remain steadfast in that mission, weak quarter notwithstanding.

Roughly three-quarters of this quarter's underperformance was driven by our energy sector holdings, which declined between 8% and 45%, despite relatively strong oil supply and demand fundamentals as reflected by a 7% increase in West Texas Intermediate (WTI) oil prices during the first quarter. The largest individual performance detractors were Weatherford (–45%), Adient (–22%) and General Electric (–21%). Investors are more concerned with Weatherford's balance sheet than we (or its new and capable management team) are, which is in part due to a delay in asset sales. With Adient, we believe the market significantly overreacted to disappointing results in a less valuable, non-core segment of its business, so we added to our holdings during the quarter. General Electric announced a large legacy insurance reserve charge as part of new CEO John Flannery's continued efforts to clean up more than a decade of mismanagement at the company. The largest contributors to performance were Fiat Chrysler (+15%), Mastercard (+16%) and CBRE Group (+9%).

We completed the sale of FNF Group during the quarter due to price. FNF Group has been a very profitable investment for the Fund thanks in part to a terrific management team, led by longtime chairman Bill Foley, that is constantly looking to maximize and highlight per share value through smart capital allocation and corporate actions. We sold almost all of our position in Harley-Davidson during the quarter. Our Harley-Davidson thesis required continued strong growth internationally and improved U.S. sales as the number of used bikes, which date back to peak year deliveries more than 10 years ago, become less attractive substitutes for new bike sales. The company's international and U.S. sales have lagged behind our expectations, and after reassessing Harley-Davidson's per share value, we found a better alternative for the portfolio, American Airlines.

American Airlines was discussed last quarter in the Oakmark Fund letter. The reasons to own are the same, so we've left the write up unchanged (see below). The market volatility this quarter provided a particularly attractive buying opportunity for the Oakmark Select Fund.

American Airlines Group, Inc. (AAL)

Although the airlines have always provided a useful consumer service, we feel they have historically been unattractive long-term investment candidates. In the past, the major U.S. airlines lacked pricing power and faced problems related to poor corporate cultures. However, after years of consolidation capped by the merger of US Airways and American Airlines in 2013, the industry has become more mature and disciplined. The three major hub-and-spoke carriers each have strengths in their respective hubs, and their management teams are making wiser decisions about capacity additions and capital allocation. American Airlines' CEO Doug Parker sees substantial opportunity to grow value as the company completes the US Airways merger integration. He is improving the company's culture and restoring credibility with employees. Parker believes that American Airlines has around $5 billion of pretax earnings power, which is up 50% from our 2017 estimate, and he has bought back 37% of the company's shares since the merger closed. With the stock selling for a single-digit multiple of normal earnings power, we believe American Airlines is an attractive investment.

Thank you, our fellow shareholders, for your continued investment in the Oakmark Select Fund.

See accompanying Disclosures and Endnotes on page 83.

Oakmark.com 9

Oakmark Select Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands)

	Shares		Value
COMMON STOCKS - 93.9%
INFORMATION TECHNOLOGY - 24.8%
SOFTWARE & SERVICES - 17.6%
Alphabet, Inc., Class C (a)		444	$	457,754
MasterCard, Inc., Class A		1,759		308,106
Oracle Corp.		5,167		236,390
Alphabet, Inc., Class A (a)		73		75,787
				1,078,037
TECHNOLOGY HARDWARE & EQUIPMENT - 7.2%
TE Connectivity, Ltd.		4,443		443,850
				1,521,887
FINANCIALS - 23.3%
BANKS - 9.5%
Citigroup, Inc.		5,112		345,060
Bank of America Corp.		8,001		239,938
				584,998
DIVERSIFIED FINANCIALS - 8.7%
Ally Financial, Inc.		11,500		312,225
Capital One Financial Corp.		2,285		218,939
				531,164
INSURANCE - 5.1%
American International Group, Inc.		5,695		309,933
				1,426,095
CONSUMER DISCRETIONARY - 23.2%
AUTOMOBILES & COMPONENTS - 10.7%
Fiat Chrysler Automobiles N.V.		19,634		402,892
Adient PLC		4,200		250,992
Harley-Davidson, Inc.		22		925
				654,809
CONSUMER SERVICES - 4.6%
MGM Resorts International		8,000		280,160
MEDIA - 4.1%
Charter Communications, Inc., Class A (a)		820		255,200
RETAILING - 3.8%
Liberty Interactive Corp. QVC Group, Class A (a)		9,293		233,902
				1,424,071
ENERGY - 8.2%
Apache Corp.		6,071		233,612
Chesapeake Energy Corp. (a)		44,860		135,478
Weatherford International PLC (a) (b)		57,380		131,401
				500,491

	Shares		Value
REAL ESTATE - 8.1%
CBRE Group, Inc., Class A (a)		10,448	$	493,331
INDUSTRIALS - 6.3%
TRANSPORTATION - 4.1%
American Airlines Group, Inc.		4,800		249,408
CAPITAL GOODS - 2.2%
General Electric Co.		10,268		138,412
				387,820
TOTAL COMMON STOCKS - 93.9% (COST $3,820,723)				5,753,695
	Par Value		Value
SHORT-TERM INVESTMENTS - 10.1%
GOVERNMENT AND AGENCY SECURITIES - 9.0%
Federal National Mortgage Association, 1.47%, due 04/02/18 - 04/03/18 (c) (Cost $549,978)	$	550,000		549,978
REPURCHASE AGREEMENT - 1.1%
Fixed Income Clearing Corp. Repurchase Agreement, 0.90% dated 03/29/18 due 04/02/18, repurchase price $65,097, collateralized by a United States Treasury Inflation Index Note, 0.125% due 07/15/22 value plus accrued interest of $66,393 (Cost: $65,091)		65,091		65,091
TOTAL SHORT-TERM INVESTMENTS - 10.1% (COST $615,069)				615,069
TOTAL INVESTMENTS - 104.0% (COST $4,435,792)				6,368,764
Liabilities In Excess of Other Assets - (4.0)%				(243,057	)
TOTAL NET ASSETS - 100.0%			$	6,125,707

(a) Non-income producing security

(b) See Note 5 in the Notes to Financial Statements regarding investments in affiliated issuers.

See accompanying Notes to Financial Statements.

10 OAKMARK FUNDS

Oakmark Select Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands) (continued)

SCHEDULE OF TRANSACTIONS WITH AFFILIATED ISSUERS

Purchase and sale transactions and dividend and interest income earned during the period on these securities are set forth below (in thousands). The industry for the below affiliate can be found in the Schedule of Investments.

Affiliates	Shares Held		Purchases (Cost)		Sales (Proceeds)		Realized Gain/(Loss)			Change in Unrealized			Dividend Income		Value September 30, 2017		Value March 31, 2018		Percent of Net Assets
Weatherford International PLC		57,380	$	79,765	$	55,359	$	(22,596	)	$	(95,805	)	$	0	$	229,883	$	131,401		2.1	%
TOTAL		57,380	$	79,765	$	55,359	$	(22,596	)	$	(95,805	)	$	0	$	229,883	$	131,401		2.1	%

See accompanying Notes to Financial Statements.

Oakmark.com 11

Oakmark Equity and Income Fund March 31, 2018

Summary Information

VALUE OF A $10,000 INVESTMENT

Since Inception - 11/01/95 (Unaudited)

PERFORMANCE

				Average Annual Total Returns (as of 03/31/18)
(Unaudited)	Total Return Last 3 Months			1-year			3-year			5-year			10-year			Since Inception			Inception Date
Oakmark Equity and Income Fund (Investor Class)		-1.62	%		8.13	%		5.72	%		8.33	%		6.59	%		10.18	%	11/01/95
Lipper Balanced Fund Index		-0.98	%		8.48	%		5.82	%		7.38	%		6.21	%		6.91	%
S&P 500 Index		-0.76	%		13.99	%		10.78	%		13.31	%		9.49	%		9.01	%
Barclays U.S. Govt./Credit Index		-1.58	%		1.38	%		1.22	%		1.84	%		3.65	%		5.11	%
Oakmark Equity and Income Fund (Advisor Class)		-1.58	%		8.30	%		N/A			N/A			N/A			10.74	%	11/30/16
Oakmark Equity and Income Fund (Institutional Class)		-1.55	%		8.35	%		N/A			N/A			N/A			10.78	%	11/30/16
Oakmark Equity and Income Fund (Service Class)		-1.69	%		7.85	%		5.41	%		7.99	%		6.26	%		8.54	%	07/12/00

The graph and table above do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

TOP TEN EQUITY HOLDINGS⁵	% of Net Assets
Bank of America Corp.		4.8
General Motors Co.		4.7
TE Connectivity, Ltd.		4.1
Nestlé SA		2.8
MasterCard, Inc., Class A		2.8
UnitedHealth Group, Inc.		2.4
Citigroup, Inc.		2.2
Dover Corp.		2.2
Philip Morris International, Inc.		2.0
Oracle Corp.		2.0
FUND STATISTICS
Ticker*	OAKBX
Number of Equity Holdings	46
Net Assets	$15.8 billion
Weighted Average Market Cap	$114.9 billion
Median Market Cap	$25.5 billion
Gross Expense Ratio - Investor Class (as of 09/30/17)*	0.88%
Net Expense Ratio - Investor Class (as of 09/30/17)*†	0.78%

* This information is related to the Investor Class. Please visit Oakmark.com for information related to the Advisor, Institutional and Service Classes.

† The net expense ratio reflects a contractual advisory fee waiver agreement through January 28, 2019.

SECTOR ALLOCATION	% of Net Assets
Equity Investments
Financials		13.2
Information Technology		12.1
Consumer Discretionary		11.6
Consumer Staples		8.8
Industrials		4.9
Health Care		4.6
Energy		3.3
Real Estate		1.5
Materials		1.1
Total Equity Investments		61.1
Preferred Stocks		0.1
Fixed Income Investments
Corporate Bonds		13.3
Government and Agency Securities		12.0
Convertible Bond		0.1
Total Fixed Income Investments		25.4
Short-Term Investments and Other		13.4

See accompanying Disclosures and Endnotes on page 83.

12 OAKMARK FUNDS

Oakmark Equity and Income Fund March 31, 2018

Portfolio Manager Commentary

Clyde S. McGregor, CFA

Portfolio Manager

oakbx@oakmark.com

M. Colin Hudson, CFA

Portfolio Manager

oakbx@oakmark.com

Edward J. Wojciechowski, CFA

Portfolio Manager

oakbx@oakmark.com

The Return of Volatility

In our long history of writing these reports, the title above is one of the least creative we have ever posted for the opening section. But it is hard to ignore or underplay the considerable change in the investing environment that became evident in the recent quarter. To review, 2017 was the first so-called "perfect year," meaning that the S&P 500² generated positive returns in each month. And these returns were accomplished with few individual days experiencing moves of 1% or more. In January 2018, this trend continued and even amplified as the S&P 500 returned nearly 6% in the month. But in February, market action changed drastically: returns shifted to negative and intraday volatility expanded. Market commentators ascribed this change to many factors, but trade war fears, a hint of increase in the rate of inflation and rising interest rates almost certainly contributed. Whatever the causes, this more volatile period is closer to typical for the stock market than the remarkable quiescence of 2017. We are usually more active in volatile time periods, and as you will see later in this report, we initiated holdings in an unusually large group of issues during the past quarter.

For the March quarter, the Equity and Income Fund showed a loss of 1.6%, compared to a 1.0% loss for the Lipper Balanced Fund Index⁹, the Fund's performance benchmark. For the six months of the Fund's fiscal year, the Fund earned 2.5%, which contrasts to a 2.6% gain for the Lipper Index. We are pleased to report that the annualized compound rate of return since the Fund's inception in 1995 is 10.2%, while the corresponding return to the Lipper Index is 6.9%.

The largest contributors to portfolio return in the quarter were Mastercard, TE Connectivity, Jones Lang LaSalle, Bank of America and HCA Healthcare. General Motors, CVS Health, Nestlé, Citigroup and Arconic detracted most. For the six months, Bank of America, TE Connectivity, Mastercard, Jones Lang LaSalle and UnitedHealth Group led the contributors, while CVS Health, General Motors, Baker Hughes, Philip Morris International and Nestlé detracted most from return.

Are Today's Interest Rates the New Normal?

As value managers, we often are described as seeking "regression toward the mean" or mean reversion. Mean reversion is observed in many processes. Given that we are writing this during college basketball's championship tournament, a good example is a team that starts a game with an extremely high three-point field goal shooting percentage. The pull of mean reversion suggests that this shooting will cool off as the game progresses to something closer to that team's historic record. Relative to investing, we value investors look to identify equities

selling for prices well below our estimate of their intrinsic value because history has taught us that the prices of these securities will converge toward their true worth. After purchasing a holding, we aim to sell it when its price has converged with—or exceeded—our intrinsic value estimate. Our type of value investing requires only that human nature stays constant (i.e., not perfectly rational) such that price and value diverge and converge periodically. Where value investors face meaningful error potential, however, is either from mis-estimating the intrinsic value to begin with or from ignoring that a company's intrinsic value is declining.

As managers of a balanced fund, we also apply our value philosophy to fixed income investing. We look to identify fixed income issues that trade for less than we believe them to be worth, and we attempt to increase (or decrease) our fixed income portfolio weight when the term structure of interest rates is itself attractive (or unattractive). For much of the current decade, we have found interest rates generically to be too low. Low interest rates increase duration, an attribute that helps to describe the price volatility that a bond will exhibit, meaning that low interest rates amplify bond price volatility. We invest in bonds for the Equity and Income Fund in part to dampen volatility, so low interest rates are unhelpful to that effort. As well, most of us involved in investing today have considerable experience with periods of interest rates far in excess of today's levels. Many of us believe that history represents the norm (the mean expectation) and that the current time period is extraordinary (from which rates should be reverting).

But what if the mean value for interest rates has itself shifted to a much lower level such that today's term structure is the new normal? A recent paper published by the National Bureau of Economic Research makes that argument. The authors write, "Viewed from a long-run perspective, it may be fair to characterize the real safe rate as normally fluctuating around the levels that we see today, so that today's level is not so unusual. Consequently, we think the puzzle may well be why was the safe rate so high in the mid-1980s rather than why has it declined ever since."¹¹ This argument suggests that those of us who began our careers in the 1980s may be allowing an anomalous period to influence our understanding of normal levels of interest rates. Of course, this argument also has broader implications for projected returns from pension plans, endowment funds, retirement savings, etc.

Another way that economists discuss this is to estimate a neutral (or natural) rate of interest where the neutral rate is one that neither stimulates nor retards economic activity. Some postulate that the neutral rate is in part a function of economic productivity and population growth and that the low interest

See accompanying Disclosures and Endnotes on page 83.

Oakmark.com 13

Oakmark Equity and Income Fund March 31, 2018

Portfolio Manager Commentary (continued)

rate structure evident today reflects the current low productivity level.

All of this is problematic for investors and portfolio managers, even as it is advantageous for governments and other borrowers. We must work harder and perhaps differently to identify value in fixed income securities in a world of secular low rates. To dampen portfolio volatility, we may need to continue to hold higher levels of cash and other short-term instruments. And we may all have to become acclimated to a world with lower potential nominal returns.

Transaction Activity

The Fund was especially active in the quarter, adding six new positions and exiting three. The new additions were Anadarko, Carlisle, Comcast, Liberty Broadband (LBRDA, LBRDK), Qorvo and Regeneron. The Fund also built up a position in CoreLogic, having initiated it at the end of the previous quarter.

Anadarko acquires, explores, develops, produces and markets oil and natural gas. Anadarko has some of the highest quality assets in the U.S. onshore market, generating high returns on invested capital and holding a large inventory of undrilled locations. Its management team is one of the best in the industry and has a track record of operational excellence and value-accretive capital allocation. Despite these positives, the stock is trading at a discount to its E&P (exploration and production) peers.

Carlisle is a diversified manufacturing company, consisting of construction materials, interconnect technologies and other industrial products. A new management team is in the process of reshaping the portfolio through a series of acquisitions and divestitures. These activities depress short-term results but will add value in the long run. Additionally, raw material inflation has hurt the company's current financials, but we believe these pressures should prove transitory as Carlisle should eventually be able to pass costs through to customers.

Our investments in Comcast and Liberty Broadband (which we view as a cheaper way to own Charter Communications) should be covered together. We believe that the cable business has become a much higher quality, internet connectivity-centric business, and that this fact is underappreciated by the market. In many markets, Charter and Comcast have the only fiber-rich networks capable of providing consumers with the high internet speeds they increasingly demand. Competitor efforts to enter the market have proven uneconomic due to the fractional penetration available to new entrants. Thus, barriers to entry are quite high, providing a long runway for growth for the incumbent cable operators. We have great respect for the management teams at both companies and think shareholders will continue to be rewarded by their stewardship. Further, the competitive position of these companies should enable them to capture much of the economics from U.S. corporate tax reform, yet the stocks both trade for lower prices than before the passage of the bill.

CoreLogic provides residential real estate information to the financial services sector. The shares have been weak due to near-term cyclical concerns about declining mortgage refinancing activity. We do not believe this has a long-term impact on

business value. Unique data businesses tend to have great returns and are difficult to replicate. CoreLogic fits this mold. The management team has been good stewards of capital and has reduced the share count 30% since 2010. Management has been improving margins for years, and we believe there is more room for improvement going forward. Meanwhile, CoreLogic is selling well below public and private market values of other high-quality data providers.

Qorvo is a semiconductor company engaged in the design and production of the radio frequency modules that allow mobile handsets to communicate with wireless networks. Qorvo enjoys the favorable economics associated with being one of just three large competitors controlling 70% of a technically complex market. Over the long term, Qorvo and the radio frequency chip industry are exposed to many of the most favorable trends we see in the market today—increasing data consumption and mobile computer usage, internet-of-things, driverless vehicles, and a universal move toward a more connected world. We expect demand growth from these secular trends, coupled with recent design wins in the high-end of the market, to allow Qorvo to increase manufacturing utilization, which will significantly grow its margins and revenues.

Regeneron is a biotech company that is an industry leader in research and development (R&D). The company is led by its founder Leonard Schleifer who maintains a culture focused on developing novel drugs. He continues to hold a significant equity stake. Recent drug approvals provide a long growth runway, and we expect the company's largest drug, Eylea, will be sustainable for at least several more years. Regeneron spends significantly more than its peers on R&D, which—when combined with its elevated selling, general and administrative (SG&A) spending on recent drug launches—has caused its margins to look unusually low compared to its peers. However, we believe that Regeneron will earn above-average returns on its R&D spend and that its launch costs will normalize over time. Although the company's consensus multiples appear high, if its R&D costs are adjusted and its launch costs are normalized, Regeneron would be trading at a low-teens earnings multiple. We believe this is a compelling valuation for a growing business with a proven management team that is aligned with shareholders.

During the quarter, the Fund sold positions in Black Knight (received into the portfolio as a distribution from Fidelity National Financial), Manitowoc and Principal Financial. All three stocks reached their target prices and performed well during our holding period. The proceeds from these sales were used to purchase more attractively priced alternatives.

As always, we thank our fellow shareholders for investing in the Equity and Income Fund and welcome your questions or comments.

See accompanying Disclosures and Endnotes on page 83.

14 OAKMARK FUNDS

Oakmark Equity and Income Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands)

	Shares		Value
COMMON STOCKS - 61.1%
FINANCIALS - 13.2%
BANKS - 7.6%
Bank of America Corp.		25,084	$	752,254
Citigroup, Inc.		5,165		348,631
Wells Fargo & Co.		1,824		95,580
				1,196,465
DIVERSIFIED FINANCIALS - 3.7%
Ally Financial, Inc.		9,973		270,754
The Bank of New York Mellon Corp.		3,030		156,118
State Street Corp.		1,551		154,701
				581,573
INSURANCE - 1.9%
American International Group, Inc.		3,646		198,399
FNF Group		2,764		110,612
				309,011
				2,087,049
INFORMATION TECHNOLOGY - 12.1%
SOFTWARE & SERVICES - 6.9%
MasterCard, Inc., Class A		2,502		438,320
Oracle Corp.		6,939		317,464
Alphabet, Inc., Class C (a)		263		271,154
CoreLogic, Inc. (a)		1,248		56,457
				1,083,395
TECHNOLOGY HARDWARE & EQUIPMENT - 4.9%
TE Connectivity, Ltd.		6,483		647,662
CommScope Holding Co., Inc. (a)		3,280		131,110
				778,772
SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT - 0.3%
Qorvo, Inc. (a)		609		42,932
				1,905,099
CONSUMER DISCRETIONARY - 11.6%
AUTOMOBILES & COMPONENTS - 7.6%
General Motors Co.		20,307		737,971
Lear Corp.		1,316		244,975
BorgWarner, Inc.		4,282		215,080
				1,198,026
RETAILING - 1.6%
Foot Locker, Inc.		4,066		185,184
Liberty Interactive Corp. QVC Group, Class A (a)		2,327		58,582
				243,766
MEDIA - 1.5%
Comcast Corp., Class A		4,707		160,824
Liberty Broadband Corp., Class C (a)		754		64,585
Liberty Broadband Corp., Class A (a)		95		8,090
				233,499

	Shares		Value
CONSUMER SERVICES - 0.5%
MGM Resorts International		2,351	$	82,340
CONSUMER DURABLES & APPAREL - 0.4%
Carter's, Inc.		664		69,154
				1,826,785
CONSUMER STAPLES - 8.8%
FOOD, BEVERAGE & TOBACCO - 6.9%
Nestlé SA (b)		5,623		444,498
Philip Morris International, Inc.		3,250		323,070
Diageo PLC (b)		2,310		312,834
				1,080,402
FOOD & STAPLES RETAILING - 1.9%
CVS Health Corp.		4,911		305,535
				1,385,937
INDUSTRIALS - 4.9%
CAPITAL GOODS - 4.9%
Dover Corp.		3,545		348,141
Arconic, Inc.		7,685		177,055
Johnson Controls International plc		4,970		175,146
WESCO International, Inc. (a)		682		42,293
Carlisle Cos., Inc.		333		34,718
				777,353
HEALTH CARE - 4.6%
HEALTH CARE EQUIPMENT & SERVICES - 4.1%
UnitedHealth Group, Inc.		1,795		384,117
HCA Healthcare, Inc.		2,186		212,013
LivaNova PLC (a)		567		50,160
				646,290
PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES - 0.5%
Regeneron Pharmaceuticals, Inc. (a)		240		82,647
				728,937
ENERGY - 3.3%
National Oilwell Varco, Inc.		7,573		278,769
PDC Energy, Inc. (a)		1,773		86,906
Anadarko Petroleum Corp.		1,417		85,583
Baker Hughes a GE Co.		2,682		74,465
				525,723
REAL ESTATE - 1.5%
Jones Lang LaSalle, Inc.		550		96,059
The Howard Hughes Corp. (a)		555		77,156
Gaming and Leisure Properties, Inc. REIT		1,833		61,337
				234,552
MATERIALS - 1.1%
Glencore PLC		35,440		175,918
TOTAL COMMON STOCKS - 61.1% (COST $5,575,960)				9,647,353

See accompanying Notes to Financial Statements.

Oakmark.com 15

Oakmark Equity and Income Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands) (continued)

	Shares		Value
PREFERRED STOCKS - 0.1%
FINANCIALS - 0.1%
GMAC Capital Trust I (c), 7.62% (3 mo. USD LIBOR + 5.785%),		498	$	12,925
TOTAL PREFERRED STOCKS - 0.1% (COST $13,007)				12,925
	Par Value		Value
FIXED INCOME - 25.4%
CORPORATE BONDS - 13.3%
FINANCIALS - 3.7%
Aflac, Inc. 2.875%, due 10/15/26	$	980		922
Ally Financial, Inc. 4.75%, due 09/10/18		4,743		4,780
American Express Credit Corp. 1.875%, due 11/05/18		4,915		4,895
2.60%, due 09/14/20		2,945		2,912
American International Group, Inc. 3.30%, due 03/01/21		14,665		14,680
Aon Corp. 5.00%, due 09/30/20		14,745		15,396
Bank of America Corp. 1.95%, due 05/12/18		31,675		31,660
2.151%, due 11/09/20		6,970		6,833
4.45%, due 03/03/26		5,000		5,108
Capital One Bank USA NA 2.15%, due 11/21/18		3,768		3,755
Capital One NA 1.85%, due 09/13/19		39,255		38,589
2.35%, due 08/17/18		5,000		4,994
Citigroup, Inc. 1.70%, due 04/27/18		32,933		32,915
2.45%, due 01/10/20		19,910		19,725
3.40%, due 05/01/26		15,000		14,498
4.05%, due 07/30/22		13,338		13,554
2.05%, due 12/07/18		2,098		2,090
CNO Financial Group, Inc. 4.50%, due 05/30/20		9,830		9,891
5.25%, due 05/30/25		5,895		5,866
Credit Suisse Group AG, 144A 7.50%(USD 5 Year Swap rate + 4.598%) (c) (d) (e)		30,000		32,481
6.25%(USD 5 Year Swap rate + 3.455%) (c) (d) (e)		7,000		7,184
Credit Suisse Group Funding Guernsey, Ltd. 3.125%, due 12/10/20		25,000		24,861
3.80%, due 06/09/23		14,750		14,778
E*TRADE Financial Corp. 2.95%, due 08/24/22		6,965		6,780
3.80%, due 08/24/27		4,975		4,831
JPMorgan Chase & Co. 2.972%, due 01/15/23		29,765		29,195
2.971%(3 mo. USD LIBOR + 1.230%), due 10/24/23 (c)		19,910		20,203
Moody's Corp. 4.50%, due 09/01/22		9,820		10,244
5.50%, due 09/01/20		3,780		3,995

	Par Value		Value
MSCI, Inc., 144A 5.25%, due 11/15/24 (e)	$	24,830	$	25,351
4.75%, due 08/01/26 (e)		5,925		5,866
5.75%, due 08/15/25 (e)		2,950		3,082
Principal Life Global Funding II, 144A 2.15%, due 01/10/20 (e)		19,910		19,550
2.375%, due 11/21/21 (e)		6,970		6,764
Reinsurance Group of America, Inc. 3.95%, due 09/15/26		4,905		4,855
S&P Global, Inc. 4.00%, due 06/15/25		17,150		17,522
2.95%, due 01/22/27		9,810		9,322
4.40%, due 02/15/26		1,970		2,068
3.30%, due 08/14/20		1,970		1,981
2.50%, due 08/15/18		1,970		1,969
S&P Global, Inc., 144A 2.50%, due 08/15/18 (e)		1,267		1,266
The Bear Stearns Cos. LLC 4.65%, due 07/02/18		8,205		8,247
The Goldman Sachs Group, Inc. 2.35%, due 11/15/21		14,616		14,093
3.20%, due 02/23/23		7,000		6,899
2.30%, due 12/13/19		6,970		6,895
3.51%(3 mo. USD LIBOR + 1.750%), due 10/28/27 (c)		2,975		3,115
2.625%, due 04/25/21		2,000		1,959
2.875%, due 02/25/21		1,000		990
2.55%, due 10/23/19		980		975
Voya Financial, Inc. 3.65%, due 06/15/26		1,960		1,910
Wells Fargo & Co. 3.069%, due 01/24/23		14,930		14,682
3.002%(3 mo. USD LIBOR + 1.230%), due 10/31/23 (c)		8,603		8,728
Wells Fargo Bank NA 1.80%, due 11/28/18		9,900		9,853
2.15%, due 12/06/19		9,900		9,793
				575,350
CONSUMER DISCRETIONARY - 3.5%
Amazon.com, Inc., 144A 3.15%, due 08/22/27 (e)		9,950		9,600
Booking Holdings, Inc. 3.60%, due 06/01/26		14,730		14,471
3.55%, due 03/15/28		9,950		9,628
2.75%, due 03/15/23		6,965		6,721
BorgWarner, Inc. 4.625%, due 09/15/20		10,810		11,187
Caesars Resort Collection LLC / CRC Finco, Inc., 144A 5.25%, due 10/15/25 (e)		24,875		23,847
CCO Holdings LLC / CCO Holdings Capital Corp., 144A 5.125%, due 05/01/27 (e)		250		237
Charter Communications Operating LLC / Charter Communications Operating Capital 3.579%, due 07/23/20		29,148		29,230
4.20%, due 03/15/28		9,950		9,524

See accompanying Notes to Financial Statements.

16 OAKMARK FUNDS

Oakmark Equity and Income Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands) (continued)

	Par Value		Value
FIXED INCOME - 25.4% (continued)
CORPORATE BONDS - 13.3% (continued)
Dana, Inc. 6.00%, due 09/15/23	$	3,925	$	4,056
Delphi Technologies PLC, 144A 5.00%, due 10/01/25 (e)		1,000		959
Dollar Tree, Inc. 5.75%, due 03/01/23		2,950		3,079
EMI Music Publishing Group North America Holdings, Inc., 144A 7.625%, due 06/15/24 (e)		4,910		5,315
Expedia Group, Inc. 5.00%, due 02/15/26		28,360		29,261
Foot Locker, Inc. 8.50%, due 01/15/22		4,340		5,002
General Motors Co. 4.875%, due 10/02/23		41,400		43,202
3.50%, due 10/02/18		29,525		29,568
General Motors Financial Co., Inc. 3.50%, due 07/10/19		4,975		5,001
3.10%, due 01/15/19		4,915		4,920
International Game Technology PLC, 144A 6.50%, due 02/15/25 (e)		19,600		20,997
6.25%, due 02/15/22 (e)		14,800		15,503
5.625%, due 02/15/20 (e)		9,800		10,045
KFC Holding Co/Pizza Hut Holdings LLC/Taco Bell of America LLC, 144A 5.25%, due 06/01/26 (e)		1,000		996
5.00%, due 06/01/24 (e)		1,000		994
Lear Corp. 5.25%, due 01/15/25		11,060		11,686
5.375%, due 03/15/24		10,512		11,025
Lithia Motors, Inc., 144A 5.25%, due 08/01/25 (e)		1,990		1,990
Live Nation Entertainment Inc., 144A 4.875%, due 11/01/24 (e)		14,935		14,562
5.625%, due 03/15/26 (e)		4,975		5,037
5.375%, due 06/15/22 (e)		2,000		2,045
Mattel Inc., 144A 6.75%, due 12/31/25 (e)		4,980		4,868
MGM Resorts International 8.625%, due 02/01/19		2,612		2,728
Netflix, Inc. 5.875%, due 02/15/25		4,975		5,211
Netflix, Inc., 144A 4.875%, due 04/15/28 (e)		25,870		24,877
Omnicom Group, Inc. 3.625%, due 05/01/22		30,425		30,621
6.25%, due 07/15/19		2,950		3,074
Penn National Gaming, Inc., 144A 5.625%, due 01/15/27 (e)		6,970		6,719
Penske Automotive Group, Inc. 5.50%, due 05/15/26		11,343		11,144
5.375%, due 12/01/24		3,580		3,598
Scientific Games International, Inc. 10.00%, due 12/01/22		19,665		21,177
Scripps Networks Interactive, Inc. 2.80%, due 06/15/20		3,930		3,879

	Par Value		Value
Station Casinos LLC, 144A 5.00%, due 10/01/25 (e)	$	1,990	$	1,891
Tapestry, Inc. 3.00%, due 07/15/22		12,145		11,736
4.125%, due 07/15/27		4,975		4,883
Tempur Sealy International, Inc. 5.50%, due 06/15/26		1,965		1,891
The Gap, Inc. 5.95%, due 04/12/21		1,965		2,064
The William Carter Co. 5.25%, due 08/15/21		36,132		36,900
Tribune Media Co. 5.875%, due 07/15/22		1,000		1,014
Under Armour, Inc. 3.25%, due 06/15/26		12,565		11,080
Wolverine World Wide, Inc., 144A 5.00%, due 09/01/26 (e)		12,140		11,837
Yum! Brands, Inc. 3.875%, due 11/01/23		6,329		6,076
				546,956
INFORMATION TECHNOLOGY - 1.6%
Activision Blizzard, Inc., 144A 6.125%, due 09/15/23 (e)		70,853		74,113
Avnet, Inc. 4.875%, due 12/01/22		5,290		5,478
3.75%, due 12/01/21		2,985		2,982
Broadcom Corp. / Broadcom Cayman Finance, Ltd. 3.00%, due 01/15/22		14,930		14,650
2.375%, due 01/15/20		9,955		9,816
3.625%, due 01/15/24		9,955		9,793
3.50%, due 01/15/28		4,975		4,676
CDW LLC / CDW Finance Corp. 5.00%, due 09/01/25		9,955		9,905
5.00%, due 09/01/23		6,965		7,062
CommScope Technologies LLC, 144A 5.00%, due 03/15/27 (e)		14,438		13,716
CommScope, Inc., 144A 5.50%, due 06/15/24 (e)		2,985		3,048
5.00%, due 06/15/21 (e)		995		1,009
Dell International LLC / EMC Corp., 144A 5.45%, due 06/15/23 (e)		14,725		15,609
4.42%, due 06/15/21 (e)		2,940		3,016
Electronic Arts, Inc. 4.80%, due 03/01/26		19,655		21,052
3.70%, due 03/01/21		14,740		14,969
Itron Inc., 144A 5.00%, due 01/15/26 (e)		5,970		5,882
Lam Research Corp. 2.75%, due 03/15/20		19,660		19,577
2.80%, due 06/15/21		4,910		4,845
Motorola Solutions, Inc. 4.60%, due 02/23/28		2,985		3,005
Symantec Corp., 144A 5.00%, due 04/15/25 (e)		1,000		1,009
Tyco Electronics Group SA 3.70%, due 02/15/26		9,830		9,974
2.35%, due 08/01/19		1,812		1,802
				256,988

See accompanying Notes to Financial Statements.

Oakmark.com 17

Oakmark Equity and Income Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands) (continued)

	Par Value		Value
FIXED INCOME - 25.4% (continued)
CORPORATE BONDS - 13.3% (continued)
HEALTH CARE - 1.5%
Abbott Laboratories 2.90%, due 11/30/21	$	16,625	$	16,449
2.35%, due 11/22/19		9,409		9,328
AbbVie, Inc. 1.80%, due 05/14/18		4,937		4,933
Becton Dickinson and Co. 2.675%, due 12/15/19		12,811		12,737
3.30%, due 03/01/23		11,204		11,081
2.944%(3 mo. USD LIBOR + 0.8750%), due 12/29/20 (c)		9,950		9,961
2.133%, due 06/06/19		9,950		9,837
2.894%, due 06/06/22		2,985		2,896
3.363%, due 06/06/24		2,985		2,873
Centene Corp. 4.75%, due 05/15/22		20,084		20,335
Express Scripts Holding Co. 3.30%, due 02/25/21		4,915		4,906
HCA, Inc. 6.50%, due 02/15/20		9,895		10,377
5.00%, due 03/15/24		7,465		7,540
3.75%, due 03/15/19		3,965		3,980
4.25%, due 10/15/19		1,990		2,005
Johnson & Johnson 2.90%, due 01/15/28		14,925		14,345
McKesson Corp. 3.95%, due 02/16/28		2,985		2,948
Quest Diagnostics, Inc. 4.70%, due 04/01/21		5,128		5,341
Quintiles IMS, Inc., 144A 5.00%, due 10/15/26 (e)		7,800		7,772
St Jude Medical LLC 2.00%, due 09/15/18		13,485		13,433
Thermo Fisher Scientific, Inc. 3.00%, due 04/15/23		1,970		1,920
Universal Health Services, Inc., 144A 4.75%, due 08/01/22 (e)		32,695		33,207
5.00%, due 06/01/26 (e)		12,805		12,869
3.75%, due 08/01/19 (e)		6,970		7,005
Zimmer Biomet Holdings, Inc. 2.928%(3 mo. USD LIBOR + 0.7500%), due 03/19/21 (c)		4,975		4,981
3.15%, due 04/01/22		3,810		3,755
3.70%, due 03/19/23		2,985		2,991
2.00%, due 04/01/18		1,815		1,815
				241,620
REAL ESTATE - 1.0%
CBRE Services, Inc. 5.25%, due 03/15/25		24,930		26,669
4.875%, due 03/01/26		19,665		20,623
GLP Capital , LP / GLP Financing II, Inc. 4.375%, due 11/01/18		39,180		39,254
4.875%, due 11/01/20		14,975		15,247
5.375%, due 11/01/23		12,000		12,432
5.375%, due 04/15/26		3,925		3,984
4.375%, due 04/15/21		1,965		1,970

	Par Value		Value
MGM Growth Properties Operating Partnership, LP / MGP Finance Co-Issuer, Inc. REIT 5.625%, due 05/01/24	$	2,945	$	3,033
Omega Healthcare Investors, Inc. REIT 4.375%, due 08/01/23		15,046		15,039
5.25%, due 01/15/26		9,835		9,985
The Howard Hughes Corp., 144A 5.375%, due 03/15/25 (e)		11,945		11,796
Ventas Realty , LP REIT 3.125%, due 06/15/23		2,490		2,439
3.50%, due 02/01/25		1,000		974
				163,445
CONSUMER STAPLES - 0.8%
CVS Health Corp. 4.00%, due 12/05/23		18,198		18,412
5.00%, due 12/01/24		6,880		7,262
4.75%, due 12/01/22		6,880		7,206
2.25%, due 08/12/19		2,884		2,855
Kraft Heinz Foods Co, 144A 4.875%, due 02/15/25 (e)		6,260		6,527
Kraft Heinz Foods Co. 2.00%, due 07/02/18		34,173		34,139
Mead Johnson Nutrition Co. 4.125%, due 11/15/25		13,955		14,322
3.00%, due 11/15/20		6,885		6,858
Mondelez International Holdings Netherlands BV, 144A 2.00%, due 10/28/21 (e)		8,585		8,192
1.625%, due 10/28/19 (e)		7,764		7,604
Post Holdings, Inc., 144A 5.00%, due 08/15/26 (e)		2,000		1,900
5.75%, due 03/01/27 (e)		500		497
5.50%, due 03/01/25 (e)		500		493
Smithfield Foods, Inc., 144A 2.70%, due 01/31/20 (e)		6,420		6,329
3.35%, due 02/01/22 (e)		4,975		4,871
2.65%, due 10/03/21 (e)		3,980		3,811
4.25%, due 02/01/27 (e)		995		985
				132,263
INDUSTRIALS - 0.6%
BAT Capital Corp., 144A 2.297%, due 08/14/20 (e)		19,900		19,511
3.557%, due 08/15/27 (e)		6,965		6,671
IHS Markit, Ltd., 144A 4.75%, due 02/15/25 (e)		100		102
Pentair Finance Sarl 2.90%, due 09/15/18		10,602		10,604
Southwest Airlines Co. 2.65%, due 11/05/20		12,148		12,021
Stanley Black & Decker, Inc. 2.451%, due 11/17/18		6,875		6,861
USG Corp., 144A 4.875%, due 06/01/27 (e)		6,965		7,035
Welbilt, Inc. 9.50%, due 02/15/24		4,915		5,480
WESCO Distribution, Inc. 5.375%, due 06/15/24		13,675		13,726
5.375%, due 12/15/21		5,305		5,391
				87,402

See accompanying Notes to Financial Statements.

18 OAKMARK FUNDS

Oakmark Equity and Income Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands) (continued)

	Par Value		Value
FIXED INCOME - 25.4% (continued)
CORPORATE BONDS - 13.3% (continued)
ENERGY - 0.3%
Cameron International Corp. 6.375%, due 07/15/18	$	2,375	$	2,404
Cenovus Energy, Inc. 5.70%, due 10/15/19		9,470		9,795
Oceaneering International, Inc. 4.65%, due 11/15/24		5,895		5,688
Schlumberger Holdings Corp., 144A 2.35%, due 12/21/18 (e)		14,740		14,700
4.00%, due 12/21/25 (e)		9,830		9,996
Weatherford International LLC, 144A 9.875%, due 03/01/25 (e)		9,950		8,952
				51,535
TELECOMMUNICATION SERVICES - 0.2%
AT&T, Inc. 5.00%, due 03/01/21		16,710		17,549
Zayo Group LLC / Zayo Capital, Inc. 6.00%, due 04/01/23		14,745		15,150
				32,699
MATERIALS - 0.1%
Glencore Funding LLC, 144A 3.00%, due 10/27/22 (e)		9,950		9,597
3.875%, due 10/27/27 (e)		9,950		9,438
				19,035
Total Corporate Bonds (Cost $2,102,232)				2,107,293
GOVERNMENT AND AGENCY SECURITIES - 12.0%
U.S. GOVERNMENT NOTES - 11.7%
United States Treasury Bonds (TIPS) 1.25%, due 07/15/20		477,050		489,754
1.375%, due 07/15/18		431,538		435,881
2.125%, due 01/15/19		230,140		234,183
United States Treasury Notes 1.00%, due 09/15/18		199,000		198,215
1.375%, due 12/15/19		99,500		98,015
1.25%, due 11/30/18		73,725		73,354
2.00%, due 11/30/22		74,625		72,844
1.75%, due 03/31/22		74,645		72,534
2.125%, due 12/31/22		49,745		48,787
1.875%, due 11/30/21		49,785		48,750
1.50%, due 11/30/19		24,875		24,569
2.125%, due 01/31/21		24,570		24,391
1.75%, due 10/31/20		24,570		24,191
				1,845,468
U.S. GOVERNMENT AGENCIES - 0.3%
Federal National Mortgage Association, 1.25%, due 09/27/18		24,680		24,588
Federal Farm Credit Banks, 1.68%, due 08/16/21		17,165		16,639
				41,227
Total Government and Agency Securities (Cost $1,878,018)				1,886,695

	Par Value		Value
CONVERTIBLE BOND - 0.1%
Chesapeake Energy Corp., 5.50%, due 09/15/26 (Cost $14,482)	$	14,915	$	12,843
TOTAL FIXED INCOME - 25.4% (COST $3,994,732)				4,006,831
SHORT-TERM INVESTMENTS - 14.3%
COMMERCIAL PAPER - 8.7%
American Honda Finance Corp., 1.67%, due 04/06/18 (f)		40,790		40,781
Anthem, Inc., 144A, 2.28% - 2.34%, due 04/06/18 - 04/20/18 (e) (f)		99,500		99,424
Campbell Soup Co., 144A, 1.93% - 2.29%, due 04/12/18 - 06/11/18 (e) (f)		109,450		109,181
Chevron Corp., 144A, 1.71%, due 04/04/18 (e) (f)		49,750		49,743
General Mills, Inc., 144A, 1.93% - 2.28%, due 04/02/18 - 04/19/18 (e) (f)		284,086		283,928
J.P. Morgan Securities LLC, 2.04%, due 05/23/18 (f)		49,750		49,606
Kellogg Co., 144A, 2.13%, due 04/05/18 (e) (f)		39,500		39,491
Kraft Food Group, Inc., 144A, 1.81% - 2.03%, due 04/02/18 - 05/01/18 (e) (f)		199,000		198,856
MetLife Short Term Funding LLC, 144A, 1.95%, due 05/07/18 - 05/08/18 (e) (f)		94,600		94,416
Schlumberger Holdings Corp., 2.51%, due 05/15/18 (e) (f)		44,750		44,616
Schlumberger Holdings Corp., 144A, 1.81% - 2.58%, due 04/04/18 - 05/30/18 (e) (f)		60,500		60,392
Toyota Motor Credit Corp., 1.71% - 1.99%, due 04/10/18 - 05/16/18 (f)		149,250		149,045
Walgreens Boots, 1.99% - 2.21%, due 04/04/18 - 06/18/18 (f)		148,325		148,007
Total Commercial Paper (Cost $1,367,533)				1,367,486
GOVERNMENT AND AGENCY SECURITIES - 4.4%
Federal National Mortgage Association, 1.47%, due 04/02/18 - 04/03/18 (f) (Cost $699,972)		700,000		699,972
REPURCHASE AGREEMENT - 0.9%
Fixed Income Clearing Corp. Repurchase Agreement, 0.90% dated 03/29/18 due 04/02/18, repurchase price $145,304, collateralized by a United States Treasury Note, 2.125%, due 12/31/21, value plus accrued interest of $148,196 (Cost: $145,290)		145,290		145,290

See accompanying Notes to Financial Statements.

Oakmark.com 19

Oakmark Equity and Income Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands) (continued)

	Par Value		Value
SHORT-TERM INVESTMENTS - 14.3% (continued)
CORPORATE BONDS - 0.3%
FINANCIALS - 0.2%
The Goldman Sachs Group, Inc., 6.15%, due 04/01/18	$	38,800	$	38,800
CONSUMER DISCRETIONARY - 0.1%
Expedia, Inc., 7.456%, due 08/15/18		14,752		14,997
Total Corporate Bonds (Cost $53,858)				53,797
TOTAL SHORT-TERM INVESTMENTS - 14.3% (COST $2,266,653)				2,266,545
TOTAL INVESTMENTS - 100.9% (COST $11,850,352)				15,933,654
Foreign Currencies - 0.0% (g)				0	(h)
Liabilities In Excess of Other Assets - (0.9)%				(141,629	)
NET ASSETS - 100.0%			$	15,792,025

(a) Non-income producing security

(b) Sponsored American Depositary Receipt

(d) Security is perpetual and has no stated maturity date.

(e) See Note 1 in the Notes to Financial Statements regarding restricted securities. These securities may be resold subject to restrictions on resale under federal securities law.

(f) The rate shown represents the annualized yield at the time of purchase; not a coupon rate.

(g) Amount rounds to less than 0.1%.

(h) Amount rounds to less than $1,000.

Abbreviations:

REIT: Real Estate Investment Trust

See accompanying Notes to Financial Statements.

20 OAKMARK FUNDS

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Oakmark.com 21

Oakmark Global Fund March 31, 2018

Summary Information

VALUE OF A $10,000 INVESTMENT

Since Inception - 08/04/99 (Unaudited)

PERFORMANCE

				Average Annual Total Returns (as of 03/31/18)
(Unaudited)	Total Return Last 3 Months			1-year			3-year			5-year			10-year			Since Inception			Inception Date
Oakmark Global Fund (Investor Class)		-2.57	%		15.08	%		6.66	%		9.71	%		7.09	%		10.48	%	08/04/99
MSCI World Index		-1.28	%		13.59	%		7.97	%		9.70	%		5.90	%		4.77	%
Lipper Global Fund Index¹³		-1.03	%		13.52	%		7.82	%		9.51	%		5.75	%		5.52	%
Oakmark Global Fund (Advisor Class)		-2.57	%		15.20	%		N/A			N/A			N/A			20.26	%	11/30/16
Oakmark Global Fund (Institutional Class)		-2.53	%		15.32	%		N/A			N/A			N/A			20.36	%	11/30/16
Oakmark Global Fund (Service Class)		-2.64	%		14.84	%		6.32	%		9.35	%		6.73	%		10.62	%	10/10/01

The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

TOP TEN EQUITY HOLDINGS⁵	% of Net Assets
Daimler AG		5.7
Lloyds Banking Group PLC		5.0
Allianz SE		4.7
TE Connectivity, Ltd.		4.6
Alphabet, Inc., Class C		4.5
Bank of America Corp.		4.5
Citigroup, Inc.		4.0
General Motors Co.		3.8
Credit Suisse Group AG		3.7
MasterCard, Inc., Class A		3.7
FUND STATISTICS
Ticker*	OAKGX
Number of Equity Holdings	40
Net Assets	$2.6 billion
Weighted Average Market Cap	$105.6 billion
Median Market Cap	$32.9 billion
Gross Expense Ratio - Investor Class (as of 09/30/17)*	1.21%
Net Expense Ratio - Investor Class (as of 09/30/17)*†	1.15%

* This information is related to the Investor Class. Please visit Oakmark.com for information related to the Advisor, Institutional and Service Classes.

† The net expense ratio reflects a contractual advisory fee waiver agreement through January 28, 2019.

SECTOR ALLOCATION	% of Net Assets
Consumer Discretionary		27.7
Financials		25.7
Information Technology		19.1
Industrials		12.5
Materials		5.5
Health Care		3.2
Energy		1.8
Consumer Staples		1.5
Short-Term Investments and Other		3.0
GEOGRAPHIC ALLOCATION
	% of Equity
North America		46.2
United States		46.2
Europe		40.6
United Kingdom		15.9
Germany*		13.2
Switzerland		11.4
Netherlands*		0.1
Asia		7.3
Japan		4.8
	% of Equity
Asia (cont'd)		7.3
China		1.5
India		1.0
Australasia		2.9
Australia		2.9
Latin America		1.9
Mexico		1.9
Africa		1.1
South Africa		1.1

* Euro-currency countries comprise 13.3% of equity investments.

See accompanying Disclosures and Endnotes on page 83.

22 OAKMARK FUNDS

Oakmark Global Fund March 31, 2018

Portfolio Manager Commentary

David G. Herro, CFA

Portfolio Manager

oakgx@oakmark.com

Clyde S. McGregor, CFA

Portfolio Manager

oakgx@oakmark.com

Anthony P. Coniaris, CFA

Portfolio Manager

oakgx@oakmark.com

Jason E. Long, CFA

Portfolio Manager

oakgx@oakmark.com

The Markets Go Negative

Although worldwide equity markets started off well in 2018, they could not sustain the rally and posted declines for the quarter as a whole. Politics, especially relating to trade, contributed to this outcome, as did the inference that central banks were diminishing their market-supporting quantitative easing policies. The quarter ended up being the worst March quarter for stocks since 2009. The Oakmark Global Fund felt the downtrend's pull and lost 2.6% in the quarter, which compares to a 1.3% loss for the MSCI World Index¹² and a 1.0% loss for the Lipper Global Fund Index¹³. For the six months of the Fund's fiscal year, it gained 1.2%, compared to a return of 4.2% for the MSCI World Index and 3.8% for the Lipper Global Fund Index.

Holdings in the U.S. and Japan boosted returns this quarter while the U.K., Australia and Switzerland detracted most. U.S. companies dominated the contributors' list: Tenet Healthcare, Mastercard, Interpublic Group, TE Connectivity and USG. The largest detractors were Travis Perkins (U.K.), General Motors (U.S.), Citigroup (U.S.), Incitec Pivot (Australia) and Grupo Televisa (Mexico). For the fiscal six months, the leading contributors once again all came from the U.S.: TE Connectivity, Bank of America, Mastercard, USG and Tenet Healthcare. USG shows up on both contributors' lists because the company has received a premium-priced takeover offer, which, as of this report date, has been spurned. The largest detractors from return in the period were Grupo Televisa, General Electric (U.S.—sold), CarMax (U.S.), General Motors and Travis Perkins. The countries that contributed most were the U.S., Germany and Japan, while Mexico, the U.K. and South Africa detracted most.

Portfolio Activity

Market volatility in the quarter provided opportunities for trading activity, and we took advantage by adding three new holdings while eliminating two. Although the number of U.S. portfolio holdings did not change, the comparatively stronger returns in the U.S. caused the U.S. portfolio weight to increase to 45%. This is still a meaningful discount to the U.S. weight in the MSCI World Index (60%) and reflects our view that international markets currently offer better opportunities. We never target a particular country (or industry) weight. Instead, our weightings are the result of our efforts to populate the Fund with our best ideas, while also seeking appropriate diversification.

Taking the new ideas in alphabetical order, Bayer is a German-based company with sizable global businesses in pharmaceuticals, agricultural productivity and consumer health products. Bayer's standalone businesses are high quality and the group will become even stronger if the acquisition of Monsanto is

approved. Combining Bayer's agricultural productivity business with Monsanto's capabilities would create the world's leading agricultural productivity business and offer significant synergy potential. It should position Bayer to benefit from the structural demand for increased agricultural productivity, given flat growth in arable land and the growing demand for food. Bayer's management team remained disciplined during the price negotiations and divested certain assets at good prices to create room for the purchase in the company's balance sheet. Regardless of whether the Monsanto acquisition is approved, though, we believe that Bayer's valuation will remain attractive.

We also initiated a holding in Charter Communications, the second-largest U.S. cable television and broadband company. Charter is a freshly consolidated, high-quality asset with significant integration potential, led by unusually strong management. Renowned cable executive John Malone sits on Charter's board of directors, and in our many years of following his activities, we have found him to be one of the finest capital allocators in the media industry. We believe that the cable business has improved significantly as it has increasingly focused on internet connectivity, and investors are underappreciating this fact. Consumer demand for faster broadband seems to be nearly insatiable, and in many of its markets, Charter has the only fiber-rich network capable of meeting this demand. Competitor efforts to enter these markets have proven uneconomic because of the fractional penetration available to new entrants. Thus, barriers to entry are quite high, providing a long runway for growth for the incumbent cable operators. With an advantaged competitive position and strong management, Charter provides an attractive investment opportunity in our view.

Last alphabetically is Naspers, a South African-based holding company with leading internet and media assets. Naspers was an early investor in Tencent, one of China's most valuable technology companies, and today it owns a 31% stake in the company. In addition, Naspers is a global leader in various online businesses, such as classifieds, food delivery and e-commerce. We are attracted to the quality of the company's assets and to its attractive valuation. The company trades near an all-time high discount to the underlying assets it owns. Naspers management team also has an excellent long-term track record of value creation, and we believe the discount to underlying assets will close over time.

We eliminated two holdings, General Electric and Wirecard. The former was a disappointment, and the latter was a success. We sold General Electric in favor of other opportunities and to help balance the Fund's net capital gain realization as part of

See accompanying Disclosures and Endnotes on page 83.

Oakmark.com 23

Oakmark Global Fund March 31, 2018

Portfolio Manager Commentary (continued)

our commitment to make the portfolio as tax-friendly as possible, while always being cognizant of the many tax-exempt entities invested in the Fund. Wirecard's strong returns reduced our margin of safety on the investment, and we exited our position as the market price approached our estimate of intrinsic value. We recycled the Wirecard profits into securities with better risk/return profiles.

Currency Hedge

We defensively hedge a portion of the Fund's exposure to currencies that we believe are overvalued versus the U.S. dollar. The only currency in the portfolio that we currently believe is overvalued is the Swiss franc and we accordingly hedged a portion of the Fund's exposure. The Swiss franc strengthened further during the quarter, leading us to increase our hedge from the beginning of quarter position. Approximately 22% of the Swiss franc exposure was hedged at quarter end.

As always, we thank you for being our partners in the Oakmark Global Fund. We invite you to send us your comments or questions.

See accompanying Disclosures and Endnotes on page 83.

24 OAKMARK FUNDS

Oakmark Global Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands)

	Shares		Value
COMMON STOCKS - 97.0%
CONSUMER DISCRETIONARY - 27.7%
AUTOMOBILES & COMPONENTS - 13.1%
Daimler AG (Germany)		1,745	$	148,063
General Motors Co. (United States)		2,756		100,164
Toyota Motor Corp. (Japan)		1,465		94,182
				342,409
MEDIA - 10.6%
The Interpublic Group of Cos., Inc. (United States)		2,823		65,024
Grupo Televisa SAB (Mexico) (a)		2,999		47,870
Liberty Global PLC, Class C (United Kingdom) (b)		1,502		45,709
Charter Communications, Inc., Class A (United States) (b)		116		35,946
Liberty Global PLC, Class A (United Kingdom) (b)		929		29,081
Naspers, Ltd. (South Africa)		115		28,188
Live Nation Entertainment, Inc. (United States) (b)		618		26,031
				277,849
CONSUMER DURABLES & APPAREL - 2.5%
Cie Financiere Richemont SA (Switzerland)		552		49,554
Under Armour, Inc., Class C (United States) (b)		1,154		16,563
				66,117
RETAILING - 1.5%
CarMax, Inc. (United States) (b)		605		37,468
				723,843
FINANCIALS - 25.7%
BANKS - 14.5%
Lloyds Banking Group PLC (United Kingdom)		143,762		130,418
Bank of America Corp. (United States)		3,909		117,228
Citigroup, Inc. (United States)		1,559		105,260
Axis Bank, Ltd. (India)		3,257		25,495
				378,401
DIVERSIFIED FINANCIALS - 6.5%
Credit Suisse Group AG (Switzerland)		5,837		97,629
Julius Baer Group, Ltd. (Switzerland)		1,167		71,729
				169,358
INSURANCE - 4.7%
Allianz SE (Germany)		546		123,196
				670,955

	Shares		Value
INFORMATION TECHNOLOGY - 19.1%
SOFTWARE & SERVICES - 13.4%
Alphabet, Inc., Class C (United States) (b)		114	$	118,077
MasterCard, Inc., Class A (United States)		556		97,389
Oracle Corp. (United States)		1,597		73,076
Baidu, Inc. (China) (a) (b)		168		37,525
CoreLogic, Inc. (United States) (b)		561		25,356
				351,423
TECHNOLOGY HARDWARE & EQUIPMENT - 5.7%
TE Connectivity, Ltd. (United States)		1,193		119,181
Hirose Electric Co., Ltd. (Japan)		208		28,396
				147,577
				499,000
INDUSTRIALS - 12.5%
CAPITAL GOODS - 12.5%
CNH Industrial N.V. (United Kingdom)		7,350		90,713
Travis Perkins PLC (United Kingdom)		3,876		67,109
USG Corp. (United States) (b)		1,459		58,961
Johnson Controls International plc (United States)		1,388		48,913
Arconic, Inc. (United States)		1,594		36,721
MTU Aero Engines AG (Germany)		146		24,542
				326,959
MATERIALS - 5.5%
Incitec Pivot, Ltd. (Australia)		27,550		74,271
LafargeHolcim, Ltd. (Switzerland)		1,292		70,662
				144,933
HEALTH CARE - 3.2%
HEALTH CARE EQUIPMENT & SERVICES - 1.8%
Tenet Healthcare Corp. (United States) (b)		1,800		43,645
Koninklijke Philips N.V. (Netherlands)		77		2,964
				46,609
PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES - 1.4%
Bayer AG (Germany)		337		38,039
				84,648
ENERGY - 1.8%
National Oilwell Varco, Inc. (United States)		1,251		46,035
CONSUMER STAPLES - 1.5%
FOOD, BEVERAGE & TOBACCO - 1.5%
Diageo PLC (United Kingdom)		1,167		39,502
TOTAL COMMON STOCKS - 97.0% (COST $1,883,979)				2,535,875

See accompanying Notes to Financial Statements.

Oakmark.com 25

Oakmark Global Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands) (continued)

	Par Value		Value
SHORT-TERM INVESTMENT - 2.9%
REPURCHASE AGREEMENT - 2.9%
Fixed Income Clearing Corp. Repurchase Agreement, 0.90% dated 03/29/18 due 04/02/18, repurchase price $74,051, collateralized by a United States Treasury Inflation Index Note, 0.125% due 07/15/22 and a United States Treasury Note, 2.125% due 12/31/21, aggregate value plus accrued interest of $75,526 (Cost: $74,043)	$	74,043	$	74,043
TOTAL SHORT-TERM INVESTMENTS - 2.9% (COST $74,043)				74,043
TOTAL INVESTMENTS - 99.9% (COST $1,958,022)				2,609,918
Foreign Currencies (Cost $0) - 0.0% (c)				0	(d)
Other Assets In Excess of Liabilities - 0.1%				3,711
TOTAL NET ASSETS - 100.0%			$	2,613,629

(a) Sponsored American Depositary Receipt

(b) Non-income producing security

(d) Amount rounds to less than $1,000.

See accompanying Notes to Financial Statements.

26 OAKMARK FUNDS

Oakmark Global Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands) (continued)

FORWARD FOREIGN CURRENCY CONTRACTS

	Local Contract Amount		Base Contract Amount		Settlement Date	Valuation at 3/31/18		Unrealized Appreciation/ (Depreciation)
Foreign Currency Sold:
Swiss Franc		59,915		63,782	09/19/18	$	63,654	$	129
						$	63,654	$	129

See accompanying Notes to Financial Statements.

Oakmark.com 27

Oakmark Global Select Fund March 31, 2018

Summary Information

VALUE OF A $10,000 INVESTMENT

Since Inception - 10/02/06 (Unaudited)

PERFORMANCE

				Average Annual Total Returns (as of 03/31/18)
(Unaudited)	Total Return Last 3 Months			1-year			3-year			5-year			10-year			Since Inception			Inception Date
Oakmark Global Select Fund (Investor Class)		-3.32	%		10.71	%		8.60	%		10.85	%		10.51	%		8.60	%	10/02/06
MSCI World Index		-1.28	%		13.59	%		7.97	%		9.70	%		5.90	%		5.76	%
Lipper Global Fund Index¹³		-1.03	%		13.52	%		7.82	%		9.51	%		5.75	%		5.74	%
Oakmark Global Select Fund (Advisor Class)		-3.32	%		10.75	%		N/A			N/A			N/A			14.92	%	11/30/16
Oakmark Global Select Fund (Institutional Class)		-3.26	%		10.85	%		N/A			N/A			N/A			15.00	%	11/30/16

The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

TOP TEN EQUITY HOLDINGS⁵	% of Net Assets
Daimler AG		8.0
Lloyds Banking Group PLC		7.9
CNH Industrial N.V.		6.1
TE Connectivity, Ltd.		5.8
Bank of America Corp.		5.6
Credit Suisse Group AG		5.5
Alphabet, Inc., Class C		5.2
LafargeHolcim, Ltd.		5.1
WPP PLC		5.1
MasterCard, Inc., Class A		5.1
FUND STATISTICS
Ticker*	OAKWX
Number of Equity Holdings	21
Net Assets	$2.8 billion
Weighted Average Market Cap	$124.8 billion
Median Market Cap	$54.2 billion
Gross Expense Ratio - Investor Class (as of 09/30/17)*	1.19%
Net Expense Ratio - Investor Class (as of 09/30/17)*†	1.12%

* This information is related to the Investor Class. Please visit Oakmark.com for information related to the Advisor, Institutional and Service Classes.

† The net expense ratio reflects a contractual advisory fee waiver agreement through January 28, 2019.

SECTOR ALLOCATION	% of Net Assets
Financials		32.4
Information Technology		21.0
Consumer Discretionary		16.9
Industrials		11.0
Materials		5.1
Consumer Staples		5.1
Energy		3.4
Short-Term Investments and Other		5.1
GEOGRAPHIC ALLOCATION
	% of Equity
Europe		51.9
United Kingdom		22.6
Switzerland		18.0
Germany*		8.5
France*		2.8
	% of Equity
North America		48.1
United States		48.1

* Euro-currency countries comprise 11.3% of equity investments.

See accompanying Disclosures and Endnotes on page 83.

28 OAKMARK FUNDS

Oakmark Global Select Fund March 31, 2018

Portfolio Manager Commentary

William C. Nygren, CFA

Portfolio Manager

oakwx@oakmark.com

David G. Herro, CFA

Portfolio Manager

oakwx@oakmark.com

Anthony P. Coniaris, CFA

Portfolio Manager

oakwx@oakmark.com

Eric Liu, CFA

Portfolio Manager

oakwx@oakmark.com

The Oakmark Global Select Fund declined 3.3% for the quarter ended March 31, 2018, compared to the MSCI World Index, which declined 1.3%. However, the Fund has returned an average of 8.6% per year since its inception in October 2006, outperforming the MSCI World Index's¹² annualized gain of 5.8% over the same period.

Mastercard, the second largest payment system in the U.S., was the top contributor for the quarter. We were pleased with the underlying trends exhibited in Mastercard's fourth-quarter earnings report. A 13% increase in gross dollar volume translated to revenue growth of 15%, thanks to gains in switched transactions (+17%), cross-border growth (+17%) and acquisitions. For the full-year period, 10% gross dollar volume growth translated to 14% organic revenue growth and to 21% adjusted earnings per share growth. We believe that Mastercard can retain the benefits it gained from the recent U.S. tax reform. Management plans to invest a portion of the savings to boost revenue growth and will then return the remainder to shareholders, which will further enhance per share value growth. In our estimation, Mastercard is a great business with years of secular growth ahead that is trading at a discount to our perception of its underlying value.

WPP, a leading global advertising company, was the largest detractor for the quarter. Investors reacted negatively to the company's fiscal 2017 results, reported in March. Account losses from 2016 had an abnormally high negative effect on growth in 2017. The company also announced weaker guidance for 2018. However, management indicated this is primarily due to the poor performance of legacy businesses rather than problems in the company's digital or media divisions. Many developed-market multinational companies are cutting their advertising spending to control costs, which has in turn put pressure on global advertising agencies. WPP has admitted they were slow to recognize this trend and subsequently contain costs, but management will be more diligent to such changes going forward. WPP's media and digital businesses are performing well and have good growth prospects, although the company is facing some short-term pressure. Despite the challenging short-term situation, our investment thesis for WPP is intact, and we used its recent share price weakness to increase our position.

Geographically, 48% of the Fund's holdings were invested in U.S. companies as of March 31, while approximately 52% were allocated to equities in Europe and the U.K.

We continue to believe the Swiss franc is overvalued versus the U.S. dollar. As a result, we defensively hedged a portion of the

Fund's exposure. Approximately 20% of the Swiss franc exposure was hedged at quarter end.

We thank you, our shareholders, for your continued support and confidence.

See accompanying Disclosures and Endnotes on page 83.

Oakmark.com 29

Oakmark Global Select Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands)

	Shares		Value
COMMON STOCKS - 94.9%
FINANCIALS - 32.4%
BANKS - 18.3%
Lloyds Banking Group PLC (United Kingdom)		245,828	$	223,010
Bank of America Corp. (United States)		5,237		157,058
Citigroup, Inc. (United States)		2,036		137,430
				517,498
INSURANCE - 8.6%
Willis Towers Watson PLC (United States)		812		123,593
American International Group, Inc. (United States)		2,197		119,561
				243,154
DIVERSIFIED FINANCIALS - 5.5%
Credit Suisse Group AG (Switzerland)		9,308		155,685
				916,337
INFORMATION TECHNOLOGY - 21.0%
SOFTWARE & SERVICES - 15.1%
Alphabet, Inc., Class C (United States) (a)		142		146,901
MasterCard, Inc., Class A (United States)		822		143,929
Oracle Corp. (United States)		2,450		112,088
Alphabet, Inc., Class A (United States) (a)		24		24,916
				427,834
TECHNOLOGY HARDWARE & EQUIPMENT - 5.9%
TE Connectivity, Ltd. (United States)		1,654		165,224
				593,058
CONSUMER DISCRETIONARY - 16.9%
AUTOMOBILES & COMPONENTS - 8.0%
Daimler AG (Germany)		2,675		226,986
MEDIA - 5.1%
WPP PLC (United Kingdom)		9,089		144,421
CONSUMER DURABLES & APPAREL - 3.8%
Cie Financiere Richemont SA (Switzerland)		1,194		107,095
				478,502
INDUSTRIALS - 11.0%
CAPITAL GOODS - 8.4%
CNH Industrial N.V. (United Kingdom)		14,036		173,230
General Electric Co. (United States)		4,750		64,030
				237,260
TRANSPORTATION - 2.6%
Kuehne + Nagel International AG (Switzerland)		475		74,725
				311,985
MATERIALS - 5.1%
LafargeHolcim, Ltd. (Switzerland)		2,655		145,262

	Shares		Value
CONSUMER STAPLES - 5.1%
FOOD, BEVERAGE & TOBACCO - 5.1%
Danone SA (France)		938	$	75,826
Diageo PLC (United Kingdom)		1,981		67,021
				142,847
ENERGY - 3.4%
Apache Corp. (United States)		2,515		96,777
TOTAL COMMON STOCKS - 94.9% (COST $2,201,082)				2,684,768
	Par Value		Value
SHORT-TERM INVESTMENTS - 4.9%
GOVERNMENT AND AGENCY SECURITIES - 2.6%
Federal National Mortgage Association, 1.47%, due 04/02/18 (b) (Cost $74,997)	$	75,000		74,997
REPURCHASE AGREEMENT - 2.3%
Fixed Income Clearing Corp. Repurchase Agreement, 0.90% dated 03/29/18 due 04/02/18, repurchase price $63,734, collateralized by a United States Treasury Note, 2.125% due 12/31/21, value plus accrued interest of $65,005 (Cost: $63,728)		63,728		63,728
TOTAL SHORT-TERM INVESTMENTS - 4.9% (COST $138,725)				138,725
TOTAL INVESTMENTS - 99.8% (COST $2,339,807)				2,823,493
Foreign Currencies (Cost $0) - 0.0% (c)				0	(d)
Other Assets In Excess of Liabilities - 0.2%				5,005
TOTAL NET ASSETS - 100.0%			$	2,828,498

(a) Non-income producing security

(b) The rate shown represents the annualized yield at the time of purchase; not a coupon rate.

(d) Amount rounds to less than $1,000.

See accompanying Notes to Financial Statements.

30 OAKMARK FUNDS

Oakmark Global Select Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands) (continued)

FORWARD FOREIGN CURRENCY CONTRACTS

	Local Contract Amount		Base Contract Amount		Settlement Date	Valuation at 3/31/18		Unrealized Appreciation/ (Depreciation)
Foreign Currency Sold:
Swiss Franc		92,381	$	98,344	09/19/18	$	98,146	$	198
						$	98,146	$	198

See accompanying Notes to Financial Statements.

Oakmark.com 31

Oakmark International Fund March 31, 2018

Summary Information

VALUE OF A $10,000 INVESTMENT

Since Inception - 09/30/92 (Unaudited)

PERFORMANCE

				Average Annual Total Returns (as of 03/31/18)
(Unaudited)	Total Return Last 3 Months			1-year			3-year			5-year			10-year			Since Inception			Inception Date
Oakmark International Fund (Investor Class)		-2.77	%		15.29	%		7.12	%		8.74	%		7.91	%		10.17	%	09/30/92
MSCI World ex U.S. Index		-2.04	%		13.92	%		5.30	%		6.04	%		2.59	%		6.20	%
MSCI EAFE Index¹⁵		-1.53	%		14.80	%		5.55	%		6.50	%		2.74	%		6.09	%
Lipper International Fund Index¹⁶		-0.74	%		16.34	%		6.29	%		7.12	%		3.44	%		7.12	%
Oakmark International Fund (Advisor Class)		-2.76	%		15.41	%		N/A			N/A			N/A			22.24	%	11/30/16
Oakmark International Fund (Institutional Class)		-2.76	%		15.47	%		N/A			N/A			N/A			22.29	%	11/30/16
Oakmark International Fund (Service Class)		-2.89	%		14.94	%		6.77	%		8.37	%		7.56	%		8.55	%	11/04/99

The graph and table above do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

TOP TEN EQUITY HOLDINGS⁵	% of Net Assets
Daimler AG		5.0
BNP Paribas SA		4.7
Allianz SE		4.5
Lloyds Banking Group PLC		4.5
Bayerische Motoren Werke (BMW) AG		4.5
Credit Suisse Group AG		3.8
Intesa Sanpaolo SPA		3.8
Hennes & Mauritz AB (H&M) - Class B		3.6
Glencore PLC		3.5
Toyota Motor Corp.		3.2
FUND STATISTICS
Ticker*	OAKIX
Number of Equity Holdings	57
Net Assets	$46.1 billion
Weighted Average Market Cap	$53.7 billion
Median Market Cap	$26.1 billion
Gross Expense Ratio - Investor Class (as of 09/30/17)*	1.00%
Net Expense Ratio - Investor Class (as of 09/30/17)*†	0.95%

* This information is related to the Investor Class. Please visit Oakmark.com for information related to the Advisor, Institutional and Service Classes.

† The net expense ratio reflects a contractual advisory fee waiver agreement through January 28, 2019.

SECTOR ALLOCATION	% of Net Assets
Financials		32.0
Consumer Discretionary		31.8
Industrials		13.1
Materials		7.7
Health Care		4.4
Consumer Staples		3.2
Information Technology		2.1
Energy		0.1
Short-Term Investments and Other		5.6
GEOGRAPHIC ALLOCATION
	% of Equity
Europe		84.7
United Kingdom		22.3
Germany*		20.0
Switzerland		14.6
France*		14.1
Sweden		5.5
Netherlands*		4.0
Italy*		4.0
Ireland*		0.2
Asia		8.7
Japan		4.7
India		1.5
China		1.1
	% of Equity
Asia (cont'd)		8.7
Indonesia		1.0
Taiwan		0.3
South Korea		0.1
Australasia		2.5
Australia		2.5
North America		2.2
United States		2.0
Canada		0.2
Latin America		1.0
Mexico		1.0
Africa		0.9
South Africa		0.9

* Euro-currency countries comprise 42.3% of equity investments.

See accompanying Disclosures and Endnotes on page 83.

32 OAKMARK FUNDS

Oakmark International Fund March 31, 2018

Portfolio Manager Commentary

David G. Herro, CFA

Portfolio Manager

oakix@oakmark.com

Michael L. Manelli, CFA

Portfolio Manager

oakix@oakmark.com

The Oakmark International Fund declined 2.8% for the quarter ended March 31, 2018, underperforming the MSCI World ex U.S. Index¹⁴, which declined 2.0% over the same period. However, the Fund has returned an average of 10.2% per year since its inception in September 1992, outperforming the MSCI World ex U.S. Index, which has averaged 6.2% per year over the same period.

Intesa Sanpaolo, an Italian retail and commercial bank, was the top contributor to performance for the quarter. During the quarter, Intesa released fiscal 2017 earnings that exceeded expectations. The company's total amount of non-performing loans declined for the ninth straight quarter, further improving its asset quality, and Intesa's capital position was stronger than expected. The company also announced its new business plan for 2018-2021. At first glance the plan appears ambitious, but we have confidence in CEO Carlo Messina who largely delivered on the previous plan (2013-2017). A few highlights include revenue CAGR of 4%, credit costs declining to pre-crisis levels, net income increasing nearly 60% to E6 billion and a CET1 ratio of 13.1% by 2021. We continue to be impressed by Messina and believe he has great command of both the big picture and the details of the business. We believe Intesa remains an extremely well-run bank, trading at a significant discount to our estimate of intrinsic value.

H&M, a global fashion designer and retailer, was the largest detractor for the quarter. Shares reacted negatively to fiscal 2017 results reported in January. Disappointing fourth-quarter sales and elevated inventory levels led to increased markdowns. H&M didn't have enough of the right product overall or enough of the right product in the right stores, which resulted in poor sell-through. In addition, it seems price grouping projections were apparently incorrect, and there were too many relatively high-cost items that didn't sell. These internal issues amplified the external pressures facing the entire retail sector. Weak sales, combined with gross margin pressure, led to a significant decline in earnings year-over-year. First-quarter numbers reported in March were also weak, though management signaled these results in February at the company's capital markets day (CMD). Also at the CMD, in a show of increased transparency, management provided insight into current performance and highlighted that the online offering was stronger than many expected. The management team provided more detail on plans to grow the like-for-like sales in physical stores and profits over the long term. In the short term, however, we expect conditions to remain challenging. The second half of fiscal 2018 will be a critical period for H&M's evolution and for determining if their many initiatives will be successful. Despite H&M's performance, management's guidance still indicates improved results and a slight increase in EBIT during the year.

H&M has been a frustrating investment, but we believe management is making progress and that the investment will reward shareholders in the long term.

During the quarter, we sold our position in Infosys (India), Kering (France) and Komatsu (Japan) and added four new names to the portfolio: Bayer (Germany), a leading global agricultural, pharmaceutical and consumer health company; Cenovus Energy (Canada), an integrated oil and gas company; Naspers (South Africa), a media and internet conglomerate; and Ryanair Holdings (Ireland), the leading ultra-low cost carrier in Europe.

Geographically, we ended the quarter with 85% of our holdings in Europe, 5% in Japan and 3% in Australia. The remaining positions are in the U.S., Mexico, Canada, India, China, Indonesia, Taiwan, South Korea and South Africa.

We continue to believe the Swiss franc is overvalued versus the U.S. dollar. As a result, we defensively hedged a portion of the Fund's exposure. Approximately 20% of the Swiss franc exposure was hedged at quarter end.

We continue to focus on finding attractive, undervalued international companies with management teams focused on building shareholder value. We thank you for your support.

See accompanying Disclosures and Endnotes on page 83.

Oakmark.com 33

Oakmark International Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands)

	Shares		Value
COMMON STOCKS - 94.4%
FINANCIALS - 32.0%
BANKS - 17.4%
BNP Paribas SA (France)		29,422	$	2,178,317
Lloyds Banking Group PLC (United Kingdom)		2,304,460		2,090,561
Intesa Sanpaolo SPA (Italy)		478,390		1,738,533
Royal Bank of Scotland Group PLC (United Kingdom) (a)		252,499		916,816
Axis Bank, Ltd. (India)		84,027		657,696
Bank Mandiri Persero Tbk PT (Indonesia)		801,384		446,749
				8,028,672
DIVERSIFIED FINANCIALS - 8.2%
Credit Suisse Group AG (Switzerland)		105,003		1,756,270
EXOR N.V. (Netherlands) (b)		13,271		942,496
AMP, Ltd. (Australia)		145,462		557,491
Schroders PLC (United Kingdom)		11,263		504,391
Schroders PLC, Non-Voting (United Kingdom)		31		1,003
				3,761,651
INSURANCE - 6.4%
Allianz SE (Germany)		9,278		2,093,625
Willis Towers Watson PLC (United States)		5,789		880,975
				2,974,600
				14,764,923
CONSUMER DISCRETIONARY - 31.8%
AUTOMOBILES & COMPONENTS - 17.1%
Daimler AG (Germany)		27,134		2,302,686
Bayerische Motoren Werke AG (Germany)		19,272		2,090,310
Toyota Motor Corp. (Japan)		22,907		1,472,973
Continental AG (Germany)		4,020		1,109,452
Valeo SA (France) (b)		13,955		921,076
				7,896,497
MEDIA - 8.4%
Publicis Groupe SA (France) (b)		15,236		1,060,695
WPP PLC (United Kingdom)		59,575		946,588
Liberty Global PLC, Class C (United Kingdom) (a)		23,799		724,203
Grupo Televisa SAB (Mexico) (c)		27,033		431,446
Naspers, Ltd. (South Africa)		1,654		404,119
Liberty Global PLC, Class A (United Kingdom) (a)		9,398		294,236
				3,861,287
RETAILING - 3.6%
Hennes & Mauritz AB (H&M) - Class B (Sweden) (b) (d)		109,244		1,637,782
CONSUMER DURABLES & APPAREL - 2.7%
Cie Financiere Richemont SA (Switzerland)		9,099		816,232
The Swatch Group AG, Bearer Shares (Switzerland)		972		428,453
				1,244,685
				14,640,251

	Shares		Value
INDUSTRIALS - 13.1%
CAPITAL GOODS - 8.8%
CNH Industrial N.V. (United Kingdom) (b)		113,022	$	1,394,852
Safran SA (France)		5,954		629,877
SKF AB, Class B (Sweden) (b) (d)		26,996		551,239
Ashtead Group PLC (United Kingdom) (b)		18,664		508,010
Smiths Group PLC (United Kingdom)		18,498		392,784
Meggitt PLC (United Kingdom) (b)		45,818		277,571
Volvo AB, Class B (Sweden) (d)		10,272		187,301
Ferguson PLC (United Kingdom)		1,659		124,596
				4,066,230
COMMERCIAL & PROFESSIONAL SERVICES - 3.2%
Experian PLC (United Kingdom)		28,706		619,223
Bureau Veritas SA (France) (b)		19,197		498,645
G4S PLC (United Kingdom) (b)		103,817		361,371
				1,479,239
TRANSPORTATION - 1.1%
Kuehne + Nagel International AG (Switzerland)		2,475		389,144
Ryanair Holdings PLC (Ireland) (a) (c)		859		105,521
				494,665
				6,040,134
MATERIALS - 7.7%
Glencore PLC (Switzerland)		322,244		1,599,561
LafargeHolcim, Ltd. (Switzerland)		22,788		1,246,663
Orica, Ltd. (Australia) (b)		37,811		515,769
Akzo Nobel N.V. (Netherlands)		1,757		165,864
				3,527,857
HEALTH CARE - 4.4%
PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES - 2.5%
Bayer AG (Germany)		9,870		1,114,770
Sanofi (France)		839		67,403
				1,182,173
HEALTH CARE EQUIPMENT & SERVICES - 1.9%
Olympus Corp. (Japan)		15,340		579,563
Koninklijke Philips N.V. (Netherlands)		7,504		287,772
				867,335
				2,049,508
CONSUMER STAPLES - 3.2%
FOOD, BEVERAGE & TOBACCO - 3.2%
Diageo PLC (United Kingdom)		16,867		570,772
Danone SA (France)		6,118		494,800
Pernod Ricard SA (France)		1,843		306,636
Nestlé SA (Switzerland)		1,335		105,573
				1,477,781
INFORMATION TECHNOLOGY - 2.1%
SOFTWARE & SERVICES - 1.0%
Baidu, Inc. (China) (a) (c)		2,177		485,814

See accompanying Notes to Financial Statements.

34 OAKMARK FUNDS

Oakmark International Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands) (continued)

	Shares		Value
COMMON STOCKS - 94.4% (continued)
INFORMATION TECHNOLOGY - 2.1% (continued)
SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT - 1.0%
ASML Holding N.V. (Netherlands)		1,795	$	353,624
Taiwan Semiconductor Manufacturing Co., Ltd. (Taiwan)		12,074		101,041
				454,665
TECHNOLOGY HARDWARE & EQUIPMENT - 0.1%
Samsung Electronics Co., Ltd. (South Korea)		20		45,417
				985,896
ENERGY - 0.1%
Cenovus Energy, Inc. (Canada)		7,961		67,786
TOTAL COMMON STOCKS - 94.4% (COST $38,731,194)				43,554,136
	Par Value		Value
SHORT-TERM INVESTMENTS - 6.3%
U.S. GOVERNMENT BILL - 2.4%
United States Treasury Bill, 1.52% - 1.75%, due 04/12/18 - 06/21/18 (e) (Cost $1,097,521)	$	1,100,000		1,097,580
GOVERNMENT AND AGENCY SECURITIES - 2.2%
Federal National Mortgage Association, 1.47%, due 04/02/18 - 04/03/18 (e) (Cost $999,960)		1,000,000		999,960
COMMERCIAL PAPER - 1.2%
Toyota Motor Credit Corp., 1.71% - 1.99%, due 04/10/18 - 05/18/18 (e)		150,000		149,789
J.P. Morgan Securities LLC, 2.04% - 2.1%, due 05/23/18 - 05/29/18 (e)		100,000		99,678
General Mills, Inc., 144A, 1.93% - 2.08%, due 04/05/18 - 04/20/18 (e) (f)		90,000		89,952
Anthem, Inc., 144A, 2.30% - 2.34%, due 04/11/18 - 04/19/18 (e) (f)		85,000		84,923
Abbvie, Inc., 144A, 1.88%, due 04/02/18 (e) (f)		50,000		49,997
Chevron Corp., 144A, 1.71%, due 04/04/18 (e) (f)		50,000		49,993
Kraft Food Group, Inc., 144A, 1.82%, due 04/09/18 (e) (f)		25,000		24,990
Total Commercial Paper (Cost $549,334)				549,322

	Par Value		Value
REPURCHASE AGREEMENT - 0.5%
Fixed Income Clearing Corp. Repurchase Agreement, 0.90% dated 03/29/18 due 04/02/18, repurchase price $228,059, collateralized by United States Treasury Notes, 2.000% - 2.125% due 11/15/21 - 12/31/21, aggregate value plus accrued interest of $232,598 (Cost: $228,036)	$	228,036	$	228,036
TOTAL SHORT-TERM INVESTMENTS - 6.3% (COST $2,874,851)				2,874,898
TOTAL INVESTMENTS - 100.7% (COST $41,606,045)				46,429,034
Foreign Currencies (Cost $17,006) - 0.0% (g)				17,007
Liabilities In Excess of Other Assets - (0.7)%				(330,968	)
TOTAL NET ASSETS - 100.0%			$	46,115,073

(a) Non-income producing security

(b) See Note 5 in the Notes to Financial Statements regarding investments in affiliated issuers.

(d) A portion of the security out on loan.

(e) The rate shown represents the annualized yield at the time of purchase; not a coupon rate.

(f) See Note 1 in the Notes to Financial Statements regarding restricted securities. These securities may be resold subject to restrictions on resale under federal securities law.

(g) Amount rounds to less than 0.1%.

See accompanying Notes to Financial Statements.

Oakmark.com 35

Oakmark International Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands) (continued)

FORWARD FOREIGN CURRENCY CONTRACTS

	Local Contract Amount		Base Contract Amount		Settlement Date	Valuation at 3/31/18		Unrealized Appreciation/ (Depreciation)
Foreign Currency Sold:
Swiss Franc		917,182		976,385	09/19/18	$	974,415	$	1,970
						$	974,415	$	1,970

SCHEDULE OF TRANSACTIONS WITH AFFILIATED ISSUERS

Purchase and sale transactions and dividend and interest income earned during the period on these securities are set forth below (in thousands). The industry, country, or geographic region for each of the below affiliates can be found in the Schedule of Investments.

Affiliates	Shares Held		Purchases (Cost)		Sales (Proceeds)		Realized Gain/(Loss)		Change in Unrealized			Dividend Income		Value September 30, 2017		Value March 31, 2018		Percent of Net Assets
Ashtead Group PLC (a)		18,664	$	82,733	$	296,818	$	152,067	$	(90,706	)	$	1,207	$	660,733	$	508,010		1.1	%
Bureau Veritas SA (a)		19,197		—		152,399		26,953		(16,651	)		0		640,741		498,645		1.1	%
CNH Industrial N.V.		113,022		236,115		22,960		3,866		11,102			0		1,166,730		1,394,852		3.0	%
EXOR N.V.		13,271		63,893		—		0		102,708			0		775,895		942,496		2.0	%
G4S PLC		103,817		138,850		—		0		(16,576	)		0		239,098		361,372		0.8	%
Hennes & Mauritz AB (H&M) - Class B		109,244		1,095,816		—		0		(877,137	)		35,109		1,419,102		1,637,782		3.6	%
Meggitt PLC		45,818		24,501		—		0		(40,731	)		6,975		293,801		277,571		0.6	%
Orica, Ltd.		37,811		69,685		0		0		(64,910	)		7,030		510,994		515,769		1.1	%
Publicis Groupe SA		15,236		220,979		40,606		1,303		(3,209	)		0		882,229		1,060,695		2.3	%
SKF AB, Class B		26,996		24,441		—		0		(39,404	)		17,883		566,203		551,239		1.2	%
Valeo SA		13,955		415,832		60,146		17,084		(97,018	)		0		645,324		921,076		2.0	%
TOTAL		517,031	$	2,372,845	$	572,929	$	201,273	$	(1,132,532	)	$	68,204	$	7,800,850	$	8,669,507		18.8	%

(a) Due to transactions during the period ended March 31, 2018, the company is no longer an affiliate.

See accompanying Notes to Financial Statements.

36 OAKMARK FUNDS

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Oakmark.com 37

Oakmark International Small Cap Fund March 31, 2018

Summary Information

VALUE OF A $10,000 INVESTMENT

Since 3/31/08 (Unaudited)

PERFORMANCE

				Average Annual Total Returns (as of 03/31/18)
(Unaudited)	Total Return Last 3 Months			1-year			3-year			5-year			10-year			Since Inception			Inception Date
Oakmark International Small Cap Fund (Investor Class)		-3.38	%		11.15	%		6.11	%		7.74	%		6.22	%		9.62	%	11/01/95
MSCI World ex U.S. Small Cap Index		-0.50	%		21.16	%		11.30	%		9.71	%		5.81	%		N/A
MSCI World ex U.S. Index¹⁴		-2.04	%		13.92	%		5.30	%		6.04	%		2.59	%		5.44	%
Lipper International Small Cap Fund Index¹⁸		0.44	%		22.60	%		10.51	%		9.89	%		6.17	%		N/A
Oakmark International Small Cap Fund (Advisor Class)		-3.38	%		11.19	%		N/A			N/A			N/A			18.81	%	11/30/16
Oakmark International Small Cap Fund (Institutional Class)		-3.38	%		11.30	%		N/A			N/A			N/A			18.90	%	11/30/16
Oakmark International Small Cap Fund (Service Class)		-3.51	%		10.79	%		5.82	%		7.40	%		5.92	%		9.80	%	01/08/01

The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares.

Past performance is no guarantee of future results. The performance data quoted represents past performance. Current performance may be lower or higher than the performance data quoted. Total return includes change in share prices and, in each case, includes reinvestment of dividends and capital gain distributions. The investment return and principal value vary so that an investor's shares when redeemed may be worth more or less than the original cost. The performance of the Fund does not reflect the 2% redemption fee imposed on shares redeemed within 90 days of purchase. To obtain the most recent month-end performance, please visit Oakmark.com.

TOP TEN EQUITY HOLDINGS⁵	% of Net Assets
Azimut Holding SPA		4.1
IWG PLC		4.1
BNK Financial Group, Inc.		4.0
Sugi Holdings Co., Ltd.		3.6
Incitec Pivot, Ltd.		3.2
Konecranes OYJ		3.2
Travis Perkins PLC		3.0
DGB Financial Group, Inc.		2.9
Ontex Group N.V.		2.9
Howden Joinery Group PLC		2.7
FUND STATISTICS
Ticker*	OAKEX
Number of Equity Holdings	58
Net Assets	$2.9 billion
Weighted Average Market Cap	$3.8 billion
Median Market Cap	$2.8 billion
Gross Expense Ratio - Investor Class (as of 09/30/17)*	1.36%
Net Expense Ratio - Investor Class (as of 09/30/17)*	1.36%

* This information is related to the Investor Class. Please visit Oakmark.com for information related to the Advisor, Institutional and Service Classes.

SECTOR ALLOCATION	% of Net Assets
Industrials		36.2
Financials		19.2
Consumer Discretionary		14.4
Information Technology		6.5
Consumer Staples		6.5
Materials		4.2
Health Care		4.0
Telecommunication Services		2.4
Real Estate		1.7
Short-Term Investments and Other		4.9
GEOGRAPHIC ALLOCATION
	% of Equity
Europe		66.2
United Kingdom		19.8
Switzerland		10.5
Italy*		6.3
Finland*		5.8
Netherlands*		5.4
France*		4.7
Belgium		3.0
Spain*		2.3
Norway		2.3
Portugal		1.8
Turkey		1.4
Greece*		1.0
Denmark		1.0
Germany*		0.9
	% of Equity
Asia		17.3
South Korea		7.4
Japan		7.1
Indonesia		2.5
China		0.3
Australasia		9.6
Australia		7.4
New Zealand		2.2
Latin America		3.5
Mexico		3.0
Brazil		0.5
North America		3.4
Canada		3.0
United States		0.4

* Euro-currency countries comprise 26.4% of equity investments.

See accompanying Disclosures and Endnotes on page 83.

38 OAKMARK FUNDS

Oakmark International Small Cap Fund March 31, 2018

Portfolio Manager Commentary

David G. Herro, CFA

Portfolio Manager

oakex@oakmark.com

Michael L. Manelli, CFA

Portfolio Manager

oakex@oakmark.com

Justin D. Hance, CFA

Portfolio Manager

oakex@oakmark.com

The Oakmark International Small Cap Fund declined 3.4% for the quarter ended March 31, 2018, underperforming the MSCI World ex U.S. Small Cap Index¹⁷, which declined 0.5% for the same period. Since the Fund's inception in November 1995, it has returned an average of 9.6%, annualized.

The largest contributor to the Fund for the quarter was U.K.-based PageGroup, a provider of permanent, contract and temporary recruitment focused on the white-collar market. The company has significantly benefited from the strengthening global economy. In Page's most recent quarter, it posted double-digit growth in gross profits in every region, except the U.K. Given the company's significant exposure to the permanent placement market—a high-margin business—we believe that strong top-line trends will continue to grow Page's profits in the coming years. Although we modestly reduced our weighting in Page during the quarter due to the share price appreciation, it still remains a significant holding of the Fund.

The largest detractor from performance for the quarter was Element Fleet Management. Based in Canada, Element offers acquisition, servicing and financing services for vehicles spanning from cars and trucks to municipal and industrial fleets. Element serves customers in the U.S. and Canada, including companies ranging from agriculture and manufacturing to pharmaceutical and health care.

Many factors hurt Element's stock performance during the quarter. First, in early February, Element announced the completion of its strategic review and informed the market it was no longer looking to sell the company. The same release also stated that 2018 fleet operating income would decline by 3-5%, due to increased customer attrition, and that CEO Bradley Nullmeyer would be retiring from his management position, including his seat on the board. The first two items were clearly negative and investors reacted accordingly. We view the CEO change as a positive step, however, given that the legacy management bungled the GE integration having not achieved the expected level of synergies, which resulted in customer attrition. In addition, management lost focus on the core fleet management business to pursue growth in less value-added areas. COO Dan Jauernig was announced as an interim CEO and the board is expected to announce a permanent CEO when its search concludes in the next few months. We spoke with Board Chairman Brian Tobin post the February announcement (and again in March) and continue to support his efforts to refocus on the core fleet management operations, improve the management team and increase the number of independent board members.

To our surprise, further bad news surfaced in mid-March when Element reported its fiscal-year results. Although the company's core operations performed in-line with our estimates, losses from 19th Capital, a non-core joint venture that involves leasing highway tractors and trucks in the U.S., resulted in higher

than expected debt levels. Moreover, insufficient disclosure surrounding the 19th Capital joint venture has resulted in increased uncertainty about the value of these assets. We agree with the view that these non-core losses have stretched Element's balance sheet, but we believe the company can still pursue several options that would improve its capital position. Moreover, Element's non-core segments account for only 6% of its assets and the problematic 19th Capital joint venture accounts for less than 5%. Because these non-core businesses are such a small part of Element's operation, we believe that the company can contain the damages to its balance sheet.

Although Element has so far been a frustrating investment, the company still possesses a strong competitive position and has the dominant fleet management platform in North America. Element's scale advantage should enable it to provide an unsurpassed value proposition to its clients and a new management team and enhanced board oversight should lead to better execution. Although there remains uncertainty about the value of non-core joint venture assets and the company's balance sheet is more leveraged than we would like, we believe Element's extremely discounted valuation adequately compensates us for these risks.

We initiated positions in two new holdings this quarter: Babcock International Group and Dignity, both of which are headquartered in the U.K. Babcock International provides engineering services for a range of government bodies and private sector customers in the U.K. and across the globe. The company manages, maintains, upgrades and operates complex infrastructure and essential equipment. These services tend to be highly technical and complex and are geared toward customers who require a high level of security clearances. The other new holding, Dignity, is the leading provider of funeral services and pre-paid funeral plans in the U.K. The company operates nearly 800 funeral homes and holds over 10% share of the market in the U.K. We eliminated positions in Bucher Industries (Switzerland), Finning International (Canada), Melco International Development (Hong Kong), OTSUKA CORP (Japan) and Wirecard (Germany) during the quarter.

Geographically, we ended the quarter with 17% of our holdings in Asia, 66% in Europe and the U.K., and 10% in Australasia. The remaining positions are 3% in North America (Canada and the U.S.) and 4% in Latin America (Mexico and Brazil).

We continue to believe the Swiss franc and Norwegian krone are overvalued versus the U.S. dollar. As a result, we defensively hedged 20% of the Fund's Swiss franc exposure and increased the Fund's krone exposure hedged to 25%.

Thank you for your continued confidence and support.

See accompanying Disclosures and Endnotes on page 83.

Oakmark.com 39

Oakmark International Small Cap Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands)

	Shares		Value
COMMON STOCKS - 95.1%
INDUSTRIALS - 36.2%
COMMERCIAL & PROFESSIONAL SERVICES - 16.9%
IWG PLC (Switzerland)		37,113	$	119,083
Pagegroup PLC (United Kingdom)		8,763		65,956
Applus Services SA (Spain)		4,942		64,336
Randstad Holding N.V. (Netherlands)		877		57,625
Mitie Group PLC (United Kingdom) (a)		24,331		54,277
Babcock International Group PLC (United Kingdom)		4,931		46,271
Hays PLC (United Kingdom)		14,869		39,283
SThree PLC (United Kingdom)		6,352		28,784
Brunel International N.V. (Netherlands)		799		14,636
ALS, Ltd. (Australia)		657		3,745
				493,996
CAPITAL GOODS - 15.7%
Konecranes OYJ (Finland)		2,164		93,851
Travis Perkins PLC (United Kingdom)		5,047		87,374
Howden Joinery Group PLC (United Kingdom)		12,064		77,991
Metso OYJ (Finland)		2,058		64,842
Sulzer AG (Switzerland)		302		39,694
Morgan Advanced Materials PLC (United Kingdom)		8,617		38,493
MTU Aero Engines AG (Germany)		154		25,939
Wajax Corp. (Canada) (a)		1,071		20,241
dormakaba Holding AG (Switzerland)		11		8,846
Outotec OYJ (Finland) (b)		459		4,100
				461,371
TRANSPORTATION - 3.6%
Freightways, Ltd. (New Zealand)		5,118		28,001
Controladora Vuela Cia de Aviacion SAB de CV (Mexico) (b) (c)		3,391		27,637
DSV AS (Denmark)		345		27,020
Panalpina Welttransport Holding AG (Switzerland)		186		23,482
				106,140
				1,061,507
FINANCIALS - 19.2%
DIVERSIFIED FINANCIALS - 12.2%
Azimut Holding SPA (Italy)		5,553		119,185
Julius Baer Group, Ltd. (Switzerland)		1,219		74,893
Element Fleet Management Corp. (Canada) (a)		19,206		61,866
Haci Omer Sabanci Holding AS (Turkey)		14,624		38,845
Standard Life Aberdeen PLC (United Kingdom)		6,927		34,960
EFG International AG (Switzerland)		3,442		27,545
				357,294
BANKS - 7.0%
BNK Financial Group, Inc. (South Korea)		12,170		121,595
DGB Financial Group, Inc. (South Korea)		7,810		85,362
				206,957
				564,251

	Shares		Value
CONSUMER DISCRETIONARY - 14.4%
MEDIA - 9.0%
Criteo SA (France) (b) (c)		2,477	$	64,011
Megacable Holdings SAB de CV (Mexico)		12,020		55,517
NOS SGPS SA (Portugal)		8,689		51,209
Hakuhodo DY Holdings, Inc. (Japan)		3,336		45,554
SKY Network Television, Ltd. (New Zealand)		19,357		32,035
APN Outdoor Group, Ltd. (Australia)		4,171		14,864
				263,190
RETAILING - 2.6%
GrandVision N.V. (Netherlands)		3,380		77,028
CONSUMER DURABLES & APPAREL - 1.8%
Salvatore Ferragamo SPA (Italy) (d)		1,604		44,241
Cosmo Lady China Holdings Co., Ltd. (China)		16,244		8,796
				53,037
CONSUMER SERVICES - 1.0%
Dignity PLC (United Kingdom)		2,412		29,595
				422,850
INFORMATION TECHNOLOGY - 6.5%
TECHNOLOGY HARDWARE & EQUIPMENT - 3.8%
Ingenico Group SA (France)		816		66,162
Hirose Electric Co., Ltd. (Japan)		336		45,898
				112,060
SOFTWARE & SERVICES - 2.7%
Atea ASA (Norway) (a)		3,931		63,785
Totvs SA (Brazil)		1,712		14,939
				78,724
				190,784
CONSUMER STAPLES - 6.5%
FOOD & STAPLES RETAILING - 3.6%
Sugi Holdings Co., Ltd. (Japan)		1,903		106,223
HOUSEHOLD & PERSONAL PRODUCTS - 2.9%
Ontex Group N.V. (Belgium)		3,138		83,861
				190,084
MATERIALS - 4.2%
Incitec Pivot, Ltd. (Australia)		34,884		94,043
Titan Cement Co. SA (Greece)		1,181		29,287
				123,330
HEALTH CARE - 4.0%
HEALTH CARE EQUIPMENT & SERVICES - 3.6%
Primary Health Care, Ltd. (Australia) (a)		21,440		64,222
Ansell, Ltd. (Australia)		1,560		30,269
Amplifon SPA (Italy)		628		11,169
				105,660
PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES - 0.4%
QIAGEN N.V. (United States) (b)		383		12,359
				118,019

See accompanying Notes to Financial Statements.

40 OAKMARK FUNDS

Oakmark International Small Cap Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands) (continued)

	Shares		Value
COMMON STOCKS - 95.1% (continued)
TELECOMMUNICATION SERVICES - 2.4%
Tower Bersama Infrastructure Tbk PT (Indonesia)		108,063	$	43,759
Sarana Menara Nusantara Tbk PT (Indonesia)		96,021		24,969
				68,728
REAL ESTATE - 1.7%
LSL Property Services PLC (United Kingdom) (a)		10,024		31,502
Countrywide PLC (United Kingdom) (a) (b)		12,249		18,148
				49,650
TOTAL COMMON STOCKS - 95.1% (COST $2,758,283)				2,789,203
	Par Value		Value
SHORT-TERM INVESTMENTS - 4.2%
GOVERNMENT AND AGENCY SECURITIES - 2.5%
Federal National Mortgage Association, 1.47%, due 04/02/18 (e) (Cost $74,997)	$	75,000		74,997
REPURCHASE AGREEMENT - 1.7%
Fixed Income Clearing Corp. Repurchase Agreement, 0.90% dated 03/29/18 due 04/02/18, repurchase price $50,557, collateralized by a United States Treasury Note, 2.125%, due 12/31/21, value plus accrued interest of $51,566 (Cost: $50,552)		50,552		50,552
TOTAL SHORT-TERM INVESTMENTS - 4.2% (COST $125,549)				125,549
TOTAL INVESTMENTS - 99.3% (COST $2,883,832)				2,914,752
Foreign Currencies (Cost $24) - 0.0% (f)				24
Other Assets In Excess of Liabilities - 0.7%				19,434
TOTAL NET ASSETS - 100.0%			$	2,934,210

(a) See Note 5 in the Notes to Financial Statements regarding investments in affiliated issuers.

(b) Non-income producing security

(d) A portion of the security out on loan.

(e) The rate shown represents the annualized yield at the time of purchase; not a coupon rate.

(f) Amount rounds to less than 0.1%.

See accompanying Notes to Financial Statements.

Oakmark.com 41

Oakmark International Small Cap Fund March 31, 2018 (Unaudited)

Schedule of Investments (in thousands) (continued)

FORWARD FOREIGN CURRENCY CONTRACTS

	Local Contract Amount		Base Contract Amount		Settlement Date	Valuation at 3/31/18		Unrealized Appreciation/ (Depreciation)
Foreign Currency Sold:
Norwegian Krona		127,161	$	16,565	09/19/18	$	16,324	$	241
Swiss Franc		33,136		35,275	09/19/18		35,204		71
						$	51,528	$	312

SCHEDULE OF TRANSACTIONS WITH AFFILIATED ISSUERS

Affiliates	Shares Held		Purchases (Cost)		Sales (Proceeds)		Realized Gain/(Loss)			Change in Unrealized			Dividend Income		Value September 30, 2017		Value March 31, 2018		Percent of Net Assets
Atea ASA (a)		3,931	$	—	$	35,771	$	12,116		$	4,336		$	2,443	$	83,103	$	63,785		2.2	%
Countrywide PLC		12,249		—		—		0			421			0		17,727		18,148		0.6	%
Element Fleet Management Corp.		19,206		46,405		—		0			(66,431	)		1,812		81,892		61,866		2.1	%
LSL Property Services PLC		10,024		—		1,495		(1,386	)		1,556			1,032		32,827		31,502		1.1	%
Mitie Group PLC		24,331		21,421		—		0			(23,543	)		403		56,398		54,277		1.8	%
Primary Health Care Ltd. (a)		21,440		2,039		19,301		(6,676	)		22,427			864		65,732		64,222		2.2	%
Wajax Corp.		1,071		—		—		0			2,756			415		17,485		20,241		0.7	%
TOTAL		92,252	$	69,865	$	56,567	$	4,054		$	(58,478	)	$	6,969	$	355,164	$	314,041		10.7	%

(a) Due to transactions during the period ended March 31, 2018, the company is no longer an affiliate.

See accompanying Notes to Financial Statements.

42 OAKMARK FUNDS

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Oakmark.com 43

Oakmark Funds

Statements of Assets and Liabilities—March 31, 2018 (Unaudited)

(in thousands except per share amounts)

	Oakmark Fund			Oakmark Select Fund			Oakmark Equity and Income Fund			Oakmark Global Fund
Assets
Investments in unaffiliated securities, at value (a)	$	19,425,453		$	6,237,363		$	15,933,654		$	2,609,918
Investments in affiliated securities, at value (b)		0			131,401			0			0
Cash		4,003			984			5,909			313
Foreign currency, at value (c)		0	^(d)		0			0	^(d)		0	^(d)
Receivable for:
Securities sold		30,405			3,043			106,915			10,618
Fund shares sold		19,994			5,493			7,521			1,165
Dividends and interest from unaffiliated securities (Net of foreign tax withheld)		14,808			2,197			37,348			2,528
Dividends and interest from affiliated securities (Net of foreign tax withheld)		0			0			0			0
Forward foreign currency contracts		0			0			0			129
Tax reclaim from unaffiliated securities		5,425			28			10,465			1,361
Total receivables		70,632			10,761			162,249			15,801
Other assets		76			46			70			37
Total assets	$	19,500,164		$	6,380,555		$	16,101,882		$	2,626,069
Liabilities and Net Assets
Payable for:
Due to custodian	$	0		$	0		$	0		$	0
Securities purchased		124,667			249,990			294,607			10,175
Fund shares redeemed		2,924			867			5,398			260
Options written, at value		1,720	^(e)		0			0			0
Investment advisory fee		1,804			665			1,276			341
Other shareholder servicing fees		5,491			1,801			6,611			845
Transfer and dividend disbursing agent fees		291			162			211			83
Trustee fees		5			3			6			0
Deferred trustee compensation		1,171			1,031			1,008			488
Other		785			329			740			248
Total liabilities		138,858			254,848			309,857			12,440
Net assets applicable to Fund shares outstanding	$	19,361,306		$	6,125,707		$	15,792,025		$	2,613,629
Analysis of Net Assets
Paid in capital	$	11,168,115		$	3,810,972		$	10,819,807		$	1,875,267
Accumulated undistributed net realized gain (loss)		967,990			381,000			836,791			91,377
Net unrealized appreciation (depreciation)		7,198,618			1,932,972			4,083,302			652,032
Accumulated undistributed net investment income (Distributions in excess of net investment income)		26,583			763			52,125			(5,047	)
Net assets applicable to Fund shares outstanding	$	19,361,306		$	6,125,707		$	15,792,025		$	2,613,629
Price of Shares
Net asset value, offering and redemption price per share: Investor Class	$	83.59		$	45.90		$	31.67		$	32.28
Investor Class—Net assets	$	13,806,456		$	4,630,689		$	12,877,102		$	1,653,123
Investor Class—Shares outstanding (Unlimited shares authorized)		165,172			100,881			406,592			51,212
Net asset value, offering and redemption price per share: Advisor Class	$	83.61		$	45.92		$	31.68		$	32.28
Advisor Class—Net Assets	$	2,404,060		$	677,200		$	1,510,045		$	575,410
Advisor Class—Shares outstanding (Unlimited shares authorized)		28,754			14,746			47,667			17,824
Net asset value, offering and redemption price per share: Institutional Class	$	83.61		$	45.93		$	31.69		$	32.30
Institutional Class—Net Assets	$	2,996,446		$	799,486		$	861,725		$	363,243
Institutional Class—Shares outstanding (Unlimited shares authorized)		35,838			17,406			27,195			11,247
Net asset value, offering and redemption price per share: Service Class	$	83.27	^(g)	$	45.32	^(g)	$	31.49		$	31.38	^(g)
Service Class—Net assets	$	154,344		$	18,332		$	543,153		$	21,853
Service Class—Shares outstanding (Unlimited shares authorized)		1,853			405			17,247			696
(a) Identified cost of investments in unaffiliated securities.	$	12,228,369		$	4,214,323		$	11,850,352		$	1,958,022
(b) Identified cost of investments in affiliated securities.		0			221,469			0			0
(c) Identified cost of foreign currency.		0	^(d)		0			0	^(d)		0	^(d)
(d) Amount rounds to less than $1,000.
(e) Written options premiums received $3,254 (in thousands).
(f) The redemption price per share does not reflect a 2% redemption fee on redemptions of shares held for 90 days or less.
(g) Net assets have been rounded for presentation purposes. The net asset value per share shown is as reported on March 31, 2018.

See accompanying Notes to Financial Statements.

44 OAKMARK FUNDS

	Oakmark Global Select Fund			Oakmark International Fund			Oakmark International Small Cap Fund
Assets
Investments in unaffiliated securities, at value (a)	$	2,823,493		$	38,766,182		$	2,728,718
Investments in affiliated securities, at value (b)		0			7,662,852			186,034
Cash		628			0			2,014
Foreign currency, at value (c)		0	^(d)		17,007			24
Receivable for:
Securities sold		0			122,961			4,168
Fund shares sold		1,672			107,843			14,750
Dividends and interest from unaffiliated securities (Net of foreign tax withheld)		1,754			57,307			14,139
Dividends and interest from affiliated securities (Net of foreign tax withheld)		0			22,175			2,158
Forward foreign currency contracts		198			1,970			312
Tax reclaim from unaffiliated securities		2,289			29,392			2,013
Total receivables		5,913			341,648			37,540
Other assets		38			128			39
Total assets	$	2,830,072		$	46,787,817		$	2,954,369
Liabilities and Net Assets
Payable for:
Due to custodian	$	0		$	13,150		$	0
Securities purchased		0			610,526			6,440
Fund shares redeemed		68			24,394			11,399
Options written, at value		0			0			0
Investment advisory fee		366			4,781			440
Other shareholder servicing fees		793			12,873			856
Transfer and dividend disbursing agent fees		34			212			46
Trustee fees		2			0			0
Deferred trustee compensation		15			813			468
Other		296			5,995			510
Total liabilities		1,574			672,744			20,159
Net assets applicable to Fund shares outstanding	$	2,828,498		$	46,115,073		$	2,934,210
Analysis of Net Assets
Paid in capital	$	2,341,007		$	40,653,623		$	2,717,739
Accumulated undistributed net realized gain (loss)		3,792			638,297			197,097
Net unrealized appreciation (depreciation)		483,952			4,825,004			31,283
Accumulated undistributed net investment income (Distributions in excess of net investment income)		(253	)		(1,851	)		(11,909	)
Net assets applicable to Fund shares outstanding	$	2,828,498		$	46,115,073		$	2,934,210
Price of Shares
Net asset value, offering and redemption price per share: Investor Class	$	18.66		$	27.78		$	17.14	^(f)
Investor Class—Net assets	$	1,827,313		$	31,674,891		$	1,613,080
Investor Class—Shares outstanding (Unlimited shares authorized)		97,929			1,140,350			94,139
Net asset value, offering and redemption price per share: Advisor Class	$	18.66		$	27.79		$	17.13	^(f)
Advisor Class—Net Assets	$	245,500		$	2,331,297		$	423,695
Advisor Class—Shares outstanding (Unlimited shares authorized)		13,156			83,887			24,738
Net asset value, offering and redemption price per share: Institutional Class	$	18.67		$	27.80		$	17.14	^(f)
Institutional Class—Net Assets	$	755,685		$	11,588,286		$	895,521
Institutional Class—Shares outstanding (Unlimited shares authorized)		40,484			416,829			52,249
Net asset value, offering and redemption price per share: Service Class	$	0		$	27.93		$	17.03	^(f)(g)
Service Class—Net assets	$	0		$	520,599		$	1,914
Service Class—Shares outstanding (Unlimited shares authorized)		0			18,637			112
(a) Identified cost of investments in unaffiliated securities.	$	2,339,807		$	33,286,931		$	2,516,388
(b) Identified cost of investments in affiliated securities.		0			8,319,114			367,444
(c) Identified cost of foreign currency.		0	^(d)		17,006			24
(d) Amount rounds to less than $1,000.
(e) Written options premiums received $3,254 (in thousands).
(f) The redemption price per share does not reflect a 2% redemption fee on redemptions of shares held for 90 days or less.
(g) Net assets have been rounded for presentation purposes. The net asset value per share shown is as reported on March 31, 2018.

Oakmark.com 45

Oakmark Funds

Statements of Operations—March 31, 2018 (Unaudited)

(in thousands)

	Oakmark Fund			Oakmark Select Fund			Oakmark Equity and Income Fund			Oakmark Global Fund
Investment Income:
Dividends from unaffiliated securities	$	136,562		$	35,391		$	87,875		$	11,542
Dividends from affiliated securities		0			0			0			0
Non-cash dividends from affiliated securities		0			0			0			0
Interest income from unaffiliated securities		5,247			1,211			80,605			236
Security lending income		0			0			0			0
Foreign taxes withheld		0			0			0			(192	)
Total investment income		141,809			36,602			168,480			11,586
Expenses:
Investment advisory fee		70,484			27,098			56,072			13,588
Transfer and dividend disbursing agent fees		516			282			369			138
Other shareholder servicing fees		11,308			3,841			13,277			1,679
Service fee—Service Class		211			34			761			28
Reports to shareholders		274			118			264			47
Custody and accounting fees		253			129			237			154
Trustees fees		179			118			163			81
Other		325			202			13			144
Total expenses		83,550			31,822			71,156			15,859
Advisory fee waiver and expense reimbursements		(4,214	)		(2,358	)		(8,095	)		(805	)
Net expenses		79,336			29,464			63,061			15,054
Net Investment Income (Loss)	$	62,473		$	7,138		$	105,419		$	(3,468	)
Net realized and unrealized gain (loss):
Net realized gain (loss) on:
Unaffiliated investments		996,747			407,183			914,592			109,417
Affiliated investments		0			(22,596	)		0			0
Forward foreign currency contracts		0			0			0			362
Foreign currency transactions		0	^(b)		0			0			21
Written options		0			1,379			0			0
Net realized gain		996,747			385,966			914,592			109,800
Net change in unrealized appreciation (depreciation) on:
Unaffiliated investments		(114,442	)		(293,102	)		(599,509	)		(71,066	)^(c)
Affiliated investments		0			(95,805	)		0			0
Forward foreign currency contracts		0			0			0			(251	)
Foreign currency translation		0	^(b)		0			0	^(b)		(55	)
Written options		1,534			0			0			0
Net change in unrealized appreciation (depreciation)		(112,908	)		(388,907	)		(599,509	)		(71,372	)
Net realized and unrealized gain (loss)		883,839			(2,941	)		315,083			38,428
Net increase (decrease) in net assets resulting from operations	$	946,312		$	4,197		$	420,502		$	34,960
(a) Net of capital gain withholding taxes of $3,729 (in thousands) for the Oakmark International Fund.
(b) Amount rounds to less than $1,000.
(c) Includes net change in capital gain withholding taxes of $(13) and $69 (in thousands) for the Oakmark Global Fund and the Oakmark International Fund, respectively.

See accompanying Notes to Financial Statements.

46 OAKMARK FUNDS

	Oakmark Global Select Fund			Oakmark International Fund			Oakmark International Small Cap Fund
Investment Income:
Dividends from unaffiliated securities	$	12,996		$	125,577		$	22,798
Dividends from affiliated securities		0			61,174			6,969
Non-cash dividends from affiliated securities		0			7,030			0
Interest income from unaffiliated securities		443			14,659			354
Security lending income		0			3,972			739
Foreign taxes withheld		0			(14,780	)		(2,945	)
Total investment income		13,439			197,632			27,915
Expenses:
Investment advisory fee		14,354			178,607			16,924
Transfer and dividend disbursing agent fees		51			455			79
Other shareholder servicing fees		1,549			26,942			1,632
Service fee—Service Class		0			721			2
Reports to shareholders		41			1,088			156
Custody and accounting fees		135			2,073			269
Trustees fees		71			250			82
Other		318			2,566			269
Total expenses		16,519			212,702			19,413
Advisory fee waiver and expense reimbursements		(955	)		(11,510	)		0
Net expenses		15,564			201,192			19,413
Net Investment Income (Loss)	$	(2,125	)	$	(3,560	)	$	8,502
Net realized and unrealized gain (loss):
Net realized gain (loss) on:
Unaffiliated investments		20,314			1,421,210	^(a)		226,107
Affiliated investments		0			201,273			4,054
Forward foreign currency contracts		618			6,823			(2	)
Foreign currency transactions		80			(2,579	)		(175	)
Written options		0			0			0
Net realized gain		21,012			1,626,727			229,984
Net change in unrealized appreciation (depreciation) on:
Unaffiliated investments		(34,325	)		(832,113	)^(c)		(176,960	)
Affiliated investments		0			(1,232,984	)		(114,718	)
Forward foreign currency contracts		(293	)		(2,640	)		(297	)
Foreign currency translation		(106	)		(642	)		(44	)
Written options		0			0			0
Net change in unrealized appreciation (depreciation)		(34,724	)		(2,068,379	)		(292,019	)
Net realized and unrealized gain (loss)		(13,712	)		(441,652	)		(62,035	)
Net increase (decrease) in net assets resulting from operations	$	(15,837	)	$	(445,212	)	$	(53,533	)
(a) Net of capital gain withholding taxes of $3,729 (in thousands) for the Oakmark International Fund.
(b) Amount rounds to less than $1,000.
(c) Includes net change in capital gain withholding taxes of $(13) and $69 (in thousands) for the Oakmark Global Fund and the Oakmark International Fund, respectively.

Oakmark.com 47

Oakmark Funds

Statements of Changes in Net Assets

(in thousands)

	Oakmark Fund
	Six Months Ended March 31, 2018 (Unaudited)			Year Ended September 30, 2017
From Operations:
Net investment income	$	62,473		$	155,613
Net realized gain (loss)		996,747			824,949
Net change in unrealized appreciation (depreciation)		(112,908	)		2,597,773
Net increase in net assets from operations		946,312			3,578,335
Distributions to shareholders from:
Net investment income—Investor Class		(63,708	)		(164,699	)
Net investment income—Advisor Class		(15,077	)		0
Net investment income—Institutional Class		(18,636	)		0
Net investment income—Service Class		(366	)		(1,209	)
Net realized gain—Investor Class		(486,814	)		(235,492	)
Net realized gain—Advisor Class		(85,057	)		0
Net realized gain—Institutional Class		(101,453	)		0
Net realized gain—Service Class		(5,864	)		(2,593	)
Total distributions to shareholders		(776,975	)		(403,993	)
From Fund share transactions:
Proceeds from shares sold—Investor Class		1,267,967			3,333,331
Proceeds from shares sold—Advisor Class		689,946			1,773,679
Proceeds from shares sold—Institutional Class		795,855			2,507,343
Proceeds from shares sold—Service Class		14,669			27,240
Reinvestment of distributions—Investor Class		509,060			373,326
Reinvestment of distributions—Advisor Class		96,927			0
Reinvestment of distributions—Institutional Class		114,294			0
Reinvestment of distributions—Service Class		4,007			2,466
Payment for shares redeemed—Investor Class		(2,312,991	)		(6,959,152	)
Payment for shares redeemed—Advisor Class		(232,367	)		(88,078	)
Payment for shares redeemed—Institutional Class		(498,000	)		(110,417	)
Payment for shares redeemed—Service Class		(34,970	)		(69,729	)
Net increase in net assets from Fund share transactions		414,397			790,009
Total increase in net assets		583,734			3,964,351
Net assets:
Beginning of period		18,777,572			14,813,221
End of period	$	19,361,306		$	18,777,572
Accumulated undistributed net investment income	$	26,583		$	95,263

See accompanying Notes to Financial Statements.

48 OAKMARK FUNDS

Oakmark Funds

Statements of Changes in Net Assets (continued)

(in thousands)

	Oakmark Fund (continued)
	Six Months Ended March 31, 2018 (Unaudited)			Year Ended September 30, 2017
Fund Share Transactions—Investor Class:
Shares sold		14,773			44,645
Shares issued in reinvestment of dividends		6,131			5,290
Less shares redeemed		(27,120	)		(91,577	)
Net decrease in shares outstanding		(6,216	)		(41,642	)
Fund Share Transactions—Advisor Class:
Shares sold		8,131			23,306
Shares issued in reinvestment of dividends		1,167			0
Less shares redeemed		(2,719	)		(1,131	)
Net increase in shares outstanding		6,579			22,175
Fund Share Transactions—Institutional Class:
Shares sold		9,308			32,361
Shares issued in reinvestment of dividends		1,377			0
Less shares redeemed		(5,812	)		(1,396	)
Net increase in shares outstanding		4,873			30,965
Fund Share Transactions—Service Class:
Shares sold		173			365
Shares issued in reinvestment of dividends		48			35
Less shares redeemed		(409	)		(952	)
Net decrease in shares outstanding		(188	)		(552	)

See accompanying Notes to Financial Statements.

Oakmark.com 49

Oakmark Funds

Statements of Changes in Net Assets (continued)

(in thousands)

	Oakmark Select Fund
	Six Months Ended March 31, 2018 (Unaudited)			Year Ended September 30, 2017
From Operations:
Net investment income	$	7,138		$	23,329
Net realized gain (loss)		385,966			278,186
Net change in unrealized appreciation (depreciation)		(388,907	)		829,614
Net increase in net assets from operations		4,197			1,131,129
Distributions to shareholders from:
Net investment income—Investor Class		(13,245	)		(48,511	)
Net investment income—Advisor Class		(2,889	)		0
Net investment income—Institutional Class		(3,476	)		0
Net investment income—Service Class		0			(204	)
Net realized gain—Investor Class		(183,323	)		(203,667	)
Net realized gain—Advisor Class		(25,610	)		0
Net realized gain—Institutional Class		(29,814	)		0
Net realized gain—Service Class		(947	)		(1,343	)
Total distributions to shareholders		(259,304	)		(253,725	)
From Fund share transactions:
Proceeds from shares sold—Investor Class		468,518			1,095,129
Proceeds from shares sold—Advisor Class		153,697			557,393
Proceeds from shares sold—Institutional Class		138,989			736,992
Proceeds from shares sold—Service Class		1,565			7,257
Reinvestment of distributions—Investor Class		174,064			229,106
Reinvestment of distributions—Advisor Class		27,196			0
Reinvestment of distributions—Institutional Class		32,196			0
Reinvestment of distributions—Service Class		692			1,255
Payment for shares redeemed—Investor Class		(673,814	)		(2,187,831	)
Payment for shares redeemed—Advisor Class		(46,001	)		(37,728	)
Payment for shares redeemed—Institutional Class		(108,015	)		(33,499	)
Payment for shares redeemed—Service Class		(11,211	)		(19,885	)
Net increase in net assets from Fund share transactions		157,876			348,189
Total increase (decrease) in net assets		(97,231	)		1,225,593
Net assets:
Beginning of period		6,222,938			4,997,345
End of period	$	6,125,707		$	6,222,938
Accumulated undistributed net investment income	$	763		$	16,483

See accompanying Notes to Financial Statements.

50 OAKMARK FUNDS

Oakmark Funds

Statements of Changes in Net Assets (continued)

(in thousands)

	Oakmark Select Fund (continued)
	Six Months Ended March 31, 2018 (Unaudited)			Year Ended September 30, 2017
Fund Share Transactions—Investor Class:
Shares sold		9,625			24,851
Shares issued in reinvestment of dividends		3,719			5,507
Less shares redeemed		(13,942	)		(49,955	)
Net decrease in shares outstanding		(598	)		(19,597	)
Fund Share Transactions—Advisor Class:
Shares sold		3,190			12,771
Shares issued in reinvestment of dividends		581			0
Less shares redeemed		(952	)		(844	)
Net increase in shares outstanding		2,819			11,927
Fund Share Transactions—Institutional Class:
Shares sold		2,874			16,786
Shares issued in reinvestment of dividends		688			0
Less shares redeemed		(2,205	)		(737	)
Net increase in shares outstanding		1,357			16,049
Fund Share Transactions—Service Class:
Shares sold		33			168
Shares issued in reinvestment of dividends		15			30
Less shares redeemed		(235	)		(463	)
Net decrease in shares outstanding		(187	)		(265	)

See accompanying Notes to Financial Statements.

Oakmark.com 51

Oakmark Funds

Statements of Changes in Net Assets (continued)

(in thousands)

	Oakmark Equity and Income Fund
	Six Months Ended March 31, 2018 (Unaudited)			Year Ended September 30, 2017
From Operations:
Net investment income	$	105,419		$	277,367
Net realized gain (loss)		914,592			1,077,625
Net change in unrealized appreciation (depreciation)		(599,509	)		936,613
Net increase in net assets from operations		420,502			2,291,605
Distributions to shareholders from:
Net investment income—Investor Class		(171,186	)		(231,364	)
Net investment income—Advisor Class		(21,828	)		0
Net investment income—Institutional Class		(9,787	)		0
Net investment income—Service Class		(6,141	)		(8,692	)
Net realized gain—Investor Class		(857,087	)		(393,093	)
Net realized gain—Advisor Class		(95,419	)		0
Net realized gain—Institutional Class		(42,296	)		0
Net realized gain—Service Class		(39,136	)		(18,736	)
Total distributions to shareholders		(1,242,880	)		(651,885	)
From Fund share transactions:
Proceeds from shares sold—Investor Class		686,169			1,511,900
Proceeds from shares sold—Advisor Class		865,145			710,402
Proceeds from shares sold—Institutional Class		378,340			543,955
Proceeds from shares sold—Service Class		39,293			101,901
Reinvestment of distributions—Investor Class		964,308			587,325
Reinvestment of distributions—Advisor Class		114,065			0
Reinvestment of distributions—Institutional Class		49,867			0
Reinvestment of distributions—Service Class		40,453			24,677
Payment for shares redeemed—Investor Class		(2,359,901	)		(4,701,699	)
Payment for shares redeemed—Advisor Class		(106,809	)		(42,779	)
Payment for shares redeemed—Institutional Class		(58,742	)		(37,555	)
Payment for shares redeemed—Service Class		(130,024	)		(317,545	)
Net increase (decrease) in net assets from Fund share transactions		482,164			(1,619,418	)
Total increase (decrease) in net assets		(340,214	)		20,302
Net assets:
Beginning of period		16,132,239			16,111,937
End of period	$	15,792,025		$	16,132,239
Accumulated undistributed net investment income	$	52,125		$	186,573

See accompanying Notes to Financial Statements.

52 OAKMARK FUNDS

Oakmark Funds

Statements of Changes in Net Assets (continued)

(in thousands)

	Oakmark Equity and Income Fund (continued)
	Six Months Ended March 31, 2018 (Unaudited)			Year Ended September 30, 2017
Fund Share Transactions—Investor Class:
Shares sold		20,818			48,217
Shares issued in reinvestment of dividends		30,257			19,722
Less shares redeemed		(70,947	)		(150,273	)
Net decrease in shares outstanding		(19,872	)		(82,334	)
Fund Share Transactions—Advisor Class:
Shares sold		25,662			23,003
Shares issued in reinvestment of dividends		3,579			0
Less shares redeemed		(3,234	)		(1,343	)
Net increase in shares outstanding		26,007			21,660
Fund Share Transactions—Institutional Class:
Shares sold		11,394			17,203
Shares issued in reinvestment of dividends		1,565			0
Less shares redeemed		(1,789	)		(1,178	)
Net increase in shares outstanding		11,170			16,025
Fund Share Transactions—Service Class:
Shares sold		1,199			3,263
Shares issued in reinvestment of dividends		1,275			832
Less shares redeemed		(3,968	)		(10,165	)
Net decrease in shares outstanding		(1,494	)		(6,070	)

See accompanying Notes to Financial Statements.

Oakmark.com 53

Oakmark Funds

Statements of Changes in Net Assets (continued)

(in thousands)

	Oakmark Global Fund
	Six Months Ended March 31, 2018 (Unaudited)			Year Ended September 30, 2017
From Operations:
Net investment income (loss)	$	(3,468	)	$	25,228
Net realized gain (loss)		109,800			242,742
Net change in unrealized appreciation (depreciation)		(71,372	)		434,067
Net increase in net assets from operations		34,960			702,037
Distributions to shareholders from:
Net investment income—Investor Class		(15,655	)		(26,172	)
Net investment income—Advisor Class		(5,650	)		0
Net investment income—Institutional Class		(3,752	)		0
Net investment income—Service Class		(151	)		(208	)
Net realized gain—Investor Class		(111,966	)		0
Net realized gain—Advisor Class		(34,080	)		0
Net realized gain—Institutional Class		(21,645	)		0
Net realized gain—Service Class		(1,469	)		0
Total distributions to shareholders		(194,368	)		(26,380	)
From Fund share transactions:
Proceeds from shares sold—Investor Class		116,236			275,693
Proceeds from shares sold—Advisor Class		122,075			611,457
Proceeds from shares sold—Institutional Class		83,432			297,488
Proceeds from shares sold—Service Class		2,425			3,684
Reinvestment of distributions—Investor Class		120,084			24,367
Reinvestment of distributions—Advisor Class		38,466			0
Reinvestment of distributions—Institutional Class		25,035			0
Reinvestment of distributions—Service Class		1,382			188
Payment for shares redeemed—Investor Class		(294,845	)		(1,377,221	)
Payment for shares redeemed—Advisor Class		(49,476	)		(179,579	)
Payment for shares redeemed—Institutional Class		(32,472	)		(29,095	)
Payment for shares redeemed—Service Class		(3,115	)		(13,332	)
Net increase (decrease) in net assets from Fund share transactions		129,227			(386,350	)
Total increase (decrease) in net assets		(30,181	)		289,307
Net assets:
Beginning of period		2,643,810			2,354,503
End of period	$	2,613,629		$	2,643,810
Accumulated undistributed net investment income (loss)	$	(5,047	)	$	20,425

See accompanying Notes to Financial Statements.

54 OAKMARK FUNDS

Oakmark Funds

Statements of Changes in Net Assets (continued)

(in thousands)

	Oakmark Global Fund (continued)
	Six Months Ended March 31, 2018 (Unaudited)			Year Ended September 30, 2017
Fund Share Transactions—Investor Class:
Shares sold		3,388			9,382
Shares issued in reinvestment of dividends		3,688			898
Less shares redeemed		(8,652	)		(45,841	)
Net decrease in shares outstanding		(1,576	)		(35,561	)
Fund Share Transactions—Advisor Class:
Shares sold		3,559			19,869
Shares issued in reinvestment of dividends		1,181			0
Less shares redeemed		(1,465	)		(5,320	)
Net increase in shares outstanding		3,275			14,549
Fund Share Transactions—Institutional Class:
Shares sold		2,431			9,900
Shares issued in reinvestment of dividends		769			0
Less shares redeemed		(957	)		(896	)
Net increase in shares outstanding		2,243			9,004
Fund Share Transactions—Service Class:
Shares sold		73			124
Shares issued in reinvestment of dividends		44			7
Less shares redeemed		(94	)		(455	)
Net increase (decrease) in shares outstanding		23			(324	)

See accompanying Notes to Financial Statements.

Oakmark.com 55

Oakmark Funds

Statements of Changes in Net Assets (continued)

(in thousands)

	Oakmark Global Select Fund
	Six Months Ended March 31, 2018 (Unaudited)			Year Ended September 30, 2017
From Operations:
Net investment income (loss)	$	(2,125	)	$	30,812
Net realized gain (loss)		21,012			158,579
Net change in unrealized appreciation (depreciation)		(34,724	)		363,879
Net increase (decrease) in net assets from operations		(15,837	)		553,270
Distributions to shareholders from:
Net investment income—Investor Class		(16,418	)		(21,509	)
Net investment income—Advisor Class		(2,523	)		0
Net investment income—Institutional Class		(7,313	)		0
Net realized gain—Investor Class		(83,949	)		0
Net realized gain—Advisor Class		(10,926	)		0
Net realized gain—Institutional Class		(30,662	)		0
Total distributions to shareholders		(151,791	)		(21,509	)
From Fund share transactions:
Proceeds from shares sold—Investor Class		209,929			539,870
Proceeds from shares sold—Advisor Class		135,238			193,698
Proceeds from shares sold—Institutional Class		194,779			573,533
Reinvestment of distributions—Investor Class		90,867			19,755
Reinvestment of distributions—Advisor Class		13,241			0
Reinvestment of distributions—Institutional Class		34,448			0
Payment for shares redeemed—Investor Class		(401,184	)		(1,035,762	)
Payment for shares redeemed—Advisor Class		(36,550	)		(61,408	)
Payment for shares redeemed—Institutional Class		(36,293	)		(6,861	)
Net increase in net assets from Fund share transactions		204,475			222,825
Total increase in net assets		36,847			754,586
Net assets:
Beginning of period		2,791,651			2,037,065
End of period	$	2,828,498		$	2,791,651
Accumulated undistributed net investment income (loss)	$	(253	)	$	30,348
Fund Share Transactions—Investor Class:
Shares sold		10,615			30,245
Shares issued in reinvestment of dividends		4,763			1,219
Less shares redeemed		(20,324	)		(57,430	)
Net decrease in shares outstanding		(4,946	)		(25,966	)
Fund Share Transactions—Advisor Class:
Shares sold		6,817			10,639
Shares issued in reinvestment of dividends		694			0
Less shares redeemed		(1,844	)		(3,150	)
Net increase in shares outstanding		5,667			7,489
Fund Share Transactions—Institutional Class:
Shares sold		9,828			31,047
Shares issued in reinvestment of dividends		1,805			0
Less shares redeemed		(1,833	)		(363	)
Net increase in shares outstanding		9,800			30,684

See accompanying Notes to Financial Statements.

56 OAKMARK FUNDS

Oakmark Funds

Statements of Changes in Net Assets (continued)

(in thousands)

	Oakmark International Fund
	Six Months Ended March 31, 2018 (Unaudited)			Year Ended September 30, 2017
From Operations:
Net investment income (loss)	$	(3,560	)	$	535,813
Net realized gain (loss)		1,626,727			1,026,647
Net change in unrealized appreciation (depreciation)		(2,068,379	)		7,596,069
Net increase (decrease) in net assets from operations		(445,212	)		9,158,529
Distributions to shareholders from:
Net investment income—Investor Class		(408,227	)		(361,117	)
Net investment income—Advisor Class		(28,473	)		0
Net investment income—Institutional Class		(137,469	)		0
Net investment income—Service Class		(6,033	)		(6,151	)
Net realized gain—Investor Class		(511,315	)		0
Net realized gain—Advisor Class		(32,142	)		0
Net realized gain—Institutional Class		(153,251	)		0
Net realized gain—Service Class		(9,445	)		0
Total distributions to shareholders		(1,286,355	)		(367,268	)
From Fund share transactions:
Proceeds from shares sold—Investor Class		6,619,741			11,985,102
Proceeds from shares sold—Advisor Class		1,609,294			836,504
Proceeds from shares sold—Institutional Class		4,827,843			7,221,520
Proceeds from shares sold—Service Class		89,750			141,028
Reinvestment of distributions—Investor Class		784,197			301,316
Reinvestment of distributions—Advisor Class		59,372			0
Reinvestment of distributions—Institutional Class		253,244			0
Reinvestment of distributions—Service Class		10,046			4,068
Payment for shares redeemed—Investor Class		(5,617,035	)		(12,285,652	)
Payment for shares redeemed—Advisor Class		(168,002	)		(60,462	)
Payment for shares redeemed—Institutional Class		(690,667	)		(280,865	)
Payment for shares redeemed—Service Class		(142,101	)		(252,874	)
Net increase in net assets from Fund share transactions		7,635,682			7,609,685
Total increase in net assets		5,904,115			16,400,946
Net assets:
Beginning of period		40,210,958			23,810,012
End of period	$	46,115,073		$	40,210,958
Accumulated undistributed net investment income (loss)	$	(1,851	)	$	555,442

See accompanying Notes to Financial Statements.

Oakmark.com 57

Oakmark Funds

Statements of Changes in Net Assets (continued)

(in thousands)

	Oakmark International Fund (continued)
	Six Months Ended March 31, 2018 (Unaudited)			Year Ended September 30, 2017
Fund Share Transactions—Investor Class:
Shares sold		227,346			479,015
Shares issued in reinvestment of dividends		27,888			13,822
Less shares redeemed		(194,259	)		(487,955	)
Net increase in shares outstanding		60,975			4,882
Fund Share Transactions—Advisor Class:
Shares sold		55,855			34,011
Shares issued in reinvestment of dividends		2,111			0
Less shares redeemed		(5,806	)		(2,284	)
Net increase in shares outstanding		52,160			31,727
Fund Share Transactions—Institutional Class:
Shares sold		165,985			276,088
Shares issued in reinvestment of dividends		9,002			0
Less shares redeemed		(23,860	)		(10,386	)
Net increase in shares outstanding		151,127			265,702
Fund Share Transactions—Service Class:
Shares sold		3,087			5,608
Shares issued in reinvestment of dividends		355			185
Less shares redeemed		(4,867	)		(10,215	)
Net decrease in shares outstanding		(1,425	)		(4,422	)

See accompanying Notes to Financial Statements.

58 OAKMARK FUNDS

Oakmark Funds

Statements of Changes in Net Assets (continued)

(in thousands)

	Oakmark International Small Cap Fund
	Six Months Ended March 31, 2018 (Unaudited)			Year Ended September 30, 2017
From Operations:
Net investment income	$	8,502		$	37,047
Net realized gain (loss)		229,984			74,934
Net change in unrealized appreciation (depreciation)		(292,019	)		493,283
Net increase (decrease) in net assets from operations		(53,533	)		605,264
Distributions to shareholders from:
Net investment income—Investor Class		(13,476	)		(56,204	)
Net investment income—Advisor Class		(4,261	)		0
Net investment income—Institutional Class		(9,407	)		0
Net investment income—Service Class		(11	)		(35	)
Net realized gain—Investor Class		(47,478	)		(13,930	)
Net realized gain—Advisor Class		(11,802	)		0
Net realized gain—Institutional Class		(25,164	)		0
Net realized gain—Service Class		(55	)		(10	)
Total distributions to shareholders		(111,654	)		(70,179	)
From Fund share transactions:
Proceeds from shares sold—Investor Class		199,005			613,337
Proceeds from shares sold—Advisor Class		92,990			383,394
Proceeds from shares sold—Institutional Class		213,221			816,394
Proceeds from shares sold—Service Class		163			864
Reinvestment of distributions—Investor Class		57,642			65,293
Reinvestment of distributions—Advisor Class		15,895			0
Reinvestment of distributions—Institutional Class		28,214			0
Reinvestment of distributions—Service Class		45			32
Payment for shares redeemed—Investor Class		(386,621	)		(1,666,097	)
Payment for shares redeemed—Advisor Class		(50,327	)		(14,528	)
Payment for shares redeemed—Institutional Class		(135,895	)		(34,795	)
Payment for shares redeemed—Service Class		(252	)		(657	)
Redemption fees—Investor Class		105			200
Redemption fees—Advisor Class		27			0	^(a)
Redemption fees—Institutional Class		13			18
Redemption fees—Service Class		0	^(a)		0	^(a)
Net increase in net assets from Fund share transactions		34,225			163,455
Total increase (decrease) in net assets		(130,962	)		698,540
Net assets:
Beginning of period		3,065,172			2,366,632
End of period	$	2,934,210		$	3,065,172
Accumulated undistributed net investment income (loss)	$	(11,909	)	$	14,210

(a) Amount rounds to less than $1,000.

See accompanying Notes to Financial Statements.

Oakmark.com 59

Oakmark Funds

Statements of Changes in Net Assets (continued)

(in thousands)

	Oakmark International Small Cap Fund (continued)
	Six Months Ended March 31, 2018 (Unaudited)			Year Ended September 30, 2017
Fund Share Transactions—Investor Class:
Shares sold		11,136			38,179
Shares issued in reinvestment of dividends		3,361			4,598
Less shares redeemed		(21,682	)		(100,803	)
Net decrease in shares outstanding		(7,185	)		(58,026	)
Fund Share Transactions—Advisor Class:
Shares sold		5,238			22,240
Shares issued in reinvestment of dividends		927			0
Less shares redeemed		(2,840	)		(827	)
Net increase in shares outstanding		3,325			21,413
Fund Share Transactions—Institutional Class:
Shares sold		11,975			48,238
Shares issued in reinvestment of dividends		1,646			0
Less shares redeemed		(7,602	)		(2,008	)
Net increase in shares outstanding		6,019			46,230
Fund Share Transactions—Service Class:
Shares sold		9			55
Shares issued in reinvestment of dividends		2			2
Less shares redeemed		(14	)		(43	)
Net increase (decrease) in shares outstanding		(3	)		14

See accompanying Notes to Financial Statements.

60 OAKMARK FUNDS

Oakmark Funds

Notes to Financial Statements

1. SIGNIFICANT ACCOUNTING POLICIES

Organization

The following are the significant accounting policies of Oakmark Fund ("Oakmark"), Oakmark Select Fund ("Select"), Oakmark Equity and Income Fund ("Equity and Income"), Oakmark Global Fund ("Global"), Oakmark Global Select Fund ("Global Select"), Oakmark International Fund ("International") and Oakmark International Small Cap Fund ("Int'l Small Cap"), collectively referred to as the "Funds," each a series of Harris Associates Investment Trust (the "Trust"), a Massachusetts business trust, organized on February 1, 1991, which is registered as an open-end management investment company under the Investment Company Act of 1940, as amended (the "1940 Act") and accordingly follows the investment company accounting and reporting guidance of the Financial Accounting Standards Board ("FASB") Accounting Standards Codification Topic 946 Financial Services—Investment Companies. Each Fund, other than Select and Global Select, is diversified in accordance with the 1940 Act. The following policies are in conformity with accounting principles generally accepted in the United States of America ("GAAP"). The presentation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates and assumptions.

Class disclosure

Each Fund offers four classes of shares: Investor Class (formerly Class I) Shares, Advisor Class Shares, Institutional Class Shares and Service Class (formerly Class II) Shares. Investor Class, Advisor Class and Institutional Class Shares are offered for purchase directly from the Funds and through certain intermediaries who have entered into an agreement with the Funds' distributor and/or Harris Associates L.P., investment adviser to the Funds (the "Adviser"). Service Class (formerly Class II) Shares are offered to certain retirement plans such as 401(k) and profit sharing plans. Service Class Shares pay a service fee at the annual rate of up to 0.25% of the average net assets of Service Class Shares of the Funds. This service fee is paid to intermediaries for performing the services associated with the administration of such retirement plans. Global Select had no outstanding Service Class Shares during the six-month period ended March 31, 2018.

Income, realized and unrealized capital gains and losses, and expenses of the Funds not directly attributable to a specific class of shares are allocated to each class pro rata based on the relative net assets of each class. Transfer and divided disbursing agent fees, other shareholder servicing fees and reports to shareholders expenses are specific to each class.

Redemption fees

Int'l Small Cap imposes a short-term trading fee on redemptions of shares held for 90 days or less to deter abusive trading activities and to help offset two types of costs to the Fund caused by abusive trading: portfolio transaction and market impact costs associated with erratic redemption activity and administrative costs associated with processing redemptions. The fee is paid to the Fund and is 2% of the redemption value and is deducted from either the redemption proceeds or from the balance in the account. The "first-in, first-out" ("FIFO") method is used to determine the holding period. The Fund may approve the waiver of redemption fees, pursuant to the Fund's policies and procedures. Redemption fees collected by the Fund, if any, are included in the Statements of Changes in Net Assets.

Security valuation

The Funds' share prices or net asset values ("NAVs") are calculated as of the close of regular session trading (usually 4:00 p.m. Eastern time) on the New York Stock Exchange ("NYSE") on any day on which the NYSE is open for trading. Equity securities principally traded on securities exchanges in the United States and over-the-counter securities are valued at the last sales price or the official closing price on the day of valuation, or lacking any reported sales that day, at the most recent bid quotation. Securities traded on the NASDAQ National Market System are valued at the NASDAQ Official Closing Price ("NOCP"), or lacking an NOCP, at the most recent bid quotation on the NASDAQ National Market System. Equity securities principally traded on securities exchanges outside the United States are valued, depending on local convention or regulation, at the last sales price, the last bid or asked price, the mean between the last bid and asked prices, or the official closing price, or are based on a pricing composite as of the close of the regular trading hours on the appropriate exchange or other designated time. Each long-term debt instrument is valued at the latest bid quotation or an evaluated price provided by an independent pricing service. The pricing service may use standard inputs such as benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data, including market research publications. For certain security types, additional inputs may be used or some of the standard inputs may not be applicable. Additionally, the pricing service monitors market indicators and industry and economic events, which may serve as a trigger to gather and possibly use additional market data. Each short-term debt instrument (i.e., debt instruments whose maturities or expiration dates at the time of acquisition are one year or less) or money market instrument maturing in 61 days or more from the date of valuation is valued at the latest bid quotation or an evaluated price provided by an independent pricing service. Each short-term instrument maturing in 60 days or less from the date of valuation is valued at amortized cost, which approximates market value. Options are valued at the mean of the most recent bid and asked quotations.

Securities for which quotations are not readily available or securities that may have been affected by a significant event occurring between the close of a foreign market and the close of the NYSE are valued at fair value, determined by or under the direction of the pricing committee authorized by the Board of Trustees. A significant event may include the performance of U.S. markets since the close of foreign markets. The Funds may use a systematic fair valuation model provided by an independent pricing service to value foreign securities in order to adjust local closing prices for information or events that may occur between the close of certain foreign exchanges and the close of the NYSE.

Oakmark.com 61

Oakmark Funds

Notes to Financial Statements (continued)

Fair value measurement

Various inputs are used in determining the value of each Fund's investments. These inputs are prioritized into three broad levels as follows:

Level 1—quoted prices in active markets for identical securities

Level 2—other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk and others)

Level 3—significant unobservable inputs (including the assumptions of Harris Associates L.P. (the "Adviser") in determining the fair value of investments)

Observable inputs are those based on market data obtained from independent sources and unobservable inputs reflect the Adviser's own assumptions based on the best information available. The input levels are not necessarily an indication of risk or liquidity associated with investing in those securities.

The Funds recognize transfers between level 1 and level 2 at the end of the reporting cycle. At March 31, 2018, there were no transfers between level 1 and level 2 securities.

The following is a summary of the inputs used as of March 31, 2018, in valuing each Fund's assets and liabilities. Except for the industries or investment types separately stated below, the total amounts for common stocks, fixed income and short-term investments in the table below are presented by industry or investment type in each Fund's Schedule of Investments. Information on forward foreign currency contracts is presented in each Fund's Schedule of Investments.

(in thousands)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Other Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Oakmark
Common Stocks	$	18,568,748		$	0	$	0
Short-Term Investments		0			856,705		0
Put Options Written		(1,720	)		0		0
Total	$	18,567,028		$	856,705	$	0
Select
Common Stocks	$	5,753,695		$	0	$	0
Short-Term Investments		0			615,069		0
Total	$	5,753,695		$	615,069	$	0
Equity and Income
Common Stocks	$	9,647,353		$	0	$	0
Preferred Stocks		12,925			0		0
Government and Agency Securities		0			1,886,695		0
Corporate Bonds		0			2,107,293		0
Convertible Bonds		0			12,843		0
Short-Term Investments		0			2,266,545		0
Total	$	9,660,278		$	6,273,376	$	0
Global
Common Stocks	$	2,535,875		$	0	$	0
Short-Term Investments		0			74,043		0
Forward Foreign Currency Contracts - Assets		0			129		0
Total	$	2,535,875		$	74,172	$	0
Global Select
Common Stocks	$	2,684,768		$	0	$	0
Short-Term Investments		0			138,725		0
Forward Foreign Currency Contracts - Assets		0			198		0
Total	$	2,684,768		$	138,923	$	0

62 OAKMARK FUNDS

Oakmark Funds

Notes to Financial Statements (continued)

(in thousands)	Quoted Prices in Active Markets for Identical Assets (Level 1)		Other Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
International
Common Stocks	$	43,554,136	$	0	$	0
Short-Term Investments		0		2,874,898		0
Forward Foreign Currency Contracts - Assets		0		1,970		0
Total	$	43,554,136	$	2,876,868	$	0
Int'l Small Cap
Common Stocks	$	2,789,203	$	0	$	0
Short-Term Investments		0		125,549		0
Forward Foreign Currency Contracts - Assets		0		312		0
Total	$	2,789,203	$	125,861	$	0

Offsetting assets and liabilities

Accounting Standards Codification 210 requires entities to disclose gross and net information about instruments and transactions eligible for offset on the Statement of Assets and Liabilities, and disclose instruments and transactions subject to master netting or similar agreements. This disclosure is limited to derivative instruments, repurchase and reverse repurchase agreements, and securities borrowing and lending transactions.

At March 31, 2018, certain Funds held open forward foreign currency contracts that were subject to a foreign exchange settlement and netting agreement with the same counterparty. The agreement includes provisions for general obligations, representations and certain events of default or termination. The agreement includes provisions for netting arrangements that may reduce credit risk and counterparty risk associated with relevant transactions, in the event a counterparty fails to meet its obligations. The net recognized assets or liabilities related to open forward foreign currency contracts are presented in the Statements of Assets and Liabilities. The gross recognized assets (appreciation) and liabilities (depreciation) by contract are presented in the forward foreign currency contract table included in the Fund's Schedule of Investments.

At March 31, 2018, each Fund held investments in repurchase agreements. The gross value of these investments and the value of the related collateral are presented in each Fund's Schedule of Investments. The value of the related collateral for each Fund exceeded the value of the repurchase agreements held at period end.

The value of the securities on loan and the value of the related collateral as of period end, if any, are included in the Securities lending section of Note 1 to Financial Statements.

Foreign currency translations

Certain Funds invest in foreign securities, which may involve a number of risk factors and special considerations not present with investments in securities of U.S. corporations. Values of investments and other assets and liabilities denominated in foreign currencies are translated into U.S. dollars at current exchange rates obtained by a recognized bank, dealer or independent pricing service on the day of valuation. Purchases and sales of investments and dividend and interest income are converted at the prevailing rate of exchange on the respective dates of such transactions.

The Funds do not isolate that portion of the results of operations resulting from changes in foreign exchange rates on investments from the fluctuations arising from changes in market prices of securities held. Such fluctuations are included in net realized gain (loss) on investments and net change in unrealized appreciation (depreciation) on investments in the Statements of Operations. Net realized gains and losses on foreign currency transactions arising from the sale of foreign currencies, currency gains or losses realized between the trade and settlement dates on securities transactions and the difference between the amounts of dividends, interest and tax reclaims recorded and the U.S. dollar equivalent of the amounts actually received or paid are included in net realized gain (loss) on foreign currency transactions in the Statements of Operations. Unrealized gains and losses arising from changes in the fair value of assets and liabilities, other than investments in securities, resulting from changes in exchange rates are included in net change in unrealized appreciation (depreciation) on foreign currency translation in the Statements of Operations.

Forward foreign currency contracts

Forward foreign currency contracts are agreements to exchange one currency for another at a future date and at a specified price. The Funds' transactions in forward foreign currency contracts are limited to transaction and portfolio hedging. The contractual amounts of forward foreign currency contracts do not necessarily represent the amounts potentially subject to risk. The measurement of the risks associated with these instruments is meaningful only when all related and offsetting transactions are considered and could exceed the net unrealized value shown in the tables below. Risks arise from the possible inability of counterparties to

Oakmark.com 63

Oakmark Funds

Notes to Financial Statements (continued)

meet the terms of their contracts and from movements in currency values. Forward foreign currency contracts are valued at the current day's interpolated foreign exchange rates. Unrealized gain or loss on the contracts as measured by the difference between the forward foreign exchange rates at the dates of entry into the contracts and the forward rates at the end of the period is included in the Statements of Assets and Liabilities. Realized gains and losses and the net change in unrealized appreciation (depreciation) on forward foreign currency contracts for the period are included in the Statements of Operations.

At March 31, 2018, Global, Global Select, International and Int'l Small Cap held non-collateralized, forward foreign currency contracts, which are considered derivative instruments, each of whose counterparty is State Street Bank and Trust Company ("State Street"), and are listed in the Fund's Schedule of Investments.

During the period ended March 31, 2018, the notional value of forward foreign currency contracts opened and the notional value of settled contracts is listed by the Fund in the table below (in thousands):

Fund	Currency Contracts Opened		Currency Contracts Settled
Global	$	67,895	$	55,851
Global Select		112,216		80,675
International		1,165,073		814,497
Int'l Small Cap		51,840		56,029

Security transactions and investment income

Security transactions are accounted for on the trade date (date the order to buy or sell is executed), and dividend income is recorded on the ex-dividend date, except that certain dividends from foreign securities are recorded as soon as the information becomes available after the ex-dividend date. Interest income and expenses are recorded on an accrual basis. Discount is accreted on long-term fixed income securities using the yield-to-maturity method. Premium is amortized on long-term fixed income securities using the yield-to-earliest call method. Withholding taxes and tax reclaims on foreign dividends have been provided for in accordance with the Funds' understanding of the applicable country's tax rules and rates. Net realized gains and losses on investments are determined by the specific identification method.

Short sales

Each Fund may sell a security it does not own in anticipation of a decline in the fair value of that security. When a Fund sells a security short, it must borrow the security sold short and deliver it to the broker-dealer through which it made the short sale. A gain, limited to the price at which the Fund sold the security short, or loss, unlimited in size, will be recognized upon the termination of the short sale. Each Fund may sell shares of when-issued securities. Typically, a Fund sells when-issued securities when a company announces a spin-off or re-organization, and the post-spin-off or post-re-organization shares begin trading on a when-issued basis prior to the effective date of the corporate action. A sale of a when-issued security is treated as a short sale for accounting purposes. After the effective date, when shares of the new company are received, any shares sold on a when-issued basis will be delivered to the counterparty. At March 31, 2018, none of the Funds had short sales.

When-issued or delayed-delivery securities

Each Fund may purchase securities on a when-issued or delayed-delivery basis. Although the payment and interest terms of these securities are established at the time a Fund enters into the commitment, the securities may be delivered and paid for a month or more after the date of purchase, when their value may have changed. A Fund makes such commitments only with the intention of actually acquiring the securities, but may sell the securities before the settlement date if the Adviser deems it advisable for investment reasons. At March 31, 2018, none of the Funds held when-issued securities.

Accounting for options

When a Fund writes an option, the premium received by the Fund is recorded as a liability and is subsequently adjusted to the current fair value of the option written. Premiums received from writing options that expire are recorded by the Fund on the expiration date as realized gains from option transactions. The difference between the premium and the amount paid on effecting a closing purchase transaction, including brokerage commissions, is also treated as a realized gain, or if the premium is less than the amount paid for the closing purchase transaction, as a realized loss. If a call option is exercised, the premium is added to the proceeds from the sale of the underlying security or currency in determining whether the Fund has realized a gain or a loss. If a put option is exercised, the premium reduces the cost basis of the security or currency purchased by the Fund. In writing an option, the Fund bears the market risk of an unfavorable change in the price of the security or currency underlying the written option. As the writer of a covered call option on a security, a Fund foregoes, during the option's life, the opportunity to profit from increases in the market value of the security covering the call option above the sum of the premium and the exercise price of the call. Exercise of an option written by the Fund could result in the Fund selling or buying a security or currency at a price different from the current fair value. Options written by the Fund do not give rise to counterparty credit risk, as they obligate the Fund, not its counterparties, to perform.

When a Fund purchases an option, the premium paid by the Fund is recorded as an asset and is subsequently adjusted to the current fair value of the option purchased. Purchasing call options tends to increase the Fund's exposure to the underlying instrument. Purchasing put options tends to decrease the Fund's exposure to the underlying instrument. Premiums paid for purchasing options that expire are treated as realized losses. Premiums paid for purchasing options that are exercised or closed are

64 OAKMARK FUNDS

Oakmark Funds

Notes to Financial Statements (continued)

added to the amounts paid or offset against the proceeds on the underlying security to determine the realized gain or loss. The risks associated with purchasing put and call options are potential loss of the premium paid and, in the instances of OTC derivatives, the failure of the counterparty to honor its obligation under the contract.

Oakmark and Select used options written for tax management purposes during the period ended March 31, 2018. Written options outstanding, if any, are listed on each Fund's Schedule of Investments.

Credit facility

The Trust has a $200 million committed unsecured line of credit and a $300 million uncommitted unsecured discretionary demand line of credit (the "Facility") with State Street. Borrowings under the facility bear interest at 1.25% above the greater of the Federal Funds Effective Rate or LIBOR, as defined in the credit agreement. To maintain the Facility, an annualized commitment fee of 0.20% on the unused committed portion is charged to the Trust. Fees and interest expense, if any, related to the Facility are included in other expenses in the Statements of Operations. There were no borrowings under the Facility during the period ended March 31, 2018.

Expense offset arrangement

State Street serves as custodian of the Funds. State Street's fee may be reduced by credits that are an earnings allowance calculated on the average daily cash balances each Fund maintains with State Street. Credit balances used to reduce the Funds' custodian fees, if any, are reported as a reduction of total expenses in the Statements of Operations. During the period ended March 31, 2018 none of the Funds received an expense offset credit.

Repurchase agreements

Each Fund may invest in repurchase agreements, which are short-term investments whereby the Fund acquires ownership of a debt security and the seller agrees to repurchase the security at a future date at a specified price.

The Funds' custodian receives delivery of the underlying securities collateralizing repurchase agreements. It is the Funds' policy that the value of the collateral be at least equal to 102% of the repurchase price, including interest. The Adviser is responsible for determining that the value of the collateral is at all times at least equal to 102% of the repurchase price, including interest. Repurchase agreements could involve certain risks in the event of default or insolvency of the counterparty, including possible delays or restrictions upon a Fund's ability to dispose of the underlying securities. At March 31, 2018 all of the Funds held repurchase agreements.

Security lending

Each Fund may lend its portfolio securities to broker-dealers and banks. Any such loan must be continuously secured by collateral in cash, cash equivalents or U.S. Treasury or agency securities maintained on a current basis in an amount at least equal to the fair value of the securities loaned by a Fund. The Fund would continue to receive the equivalent of the interest or dividends paid by the issuer on the securities loaned, and would also receive an additional return that may be in the form of a fixed fee or a percentage of the earnings on the collateral. The Fund has the right to call the loan and attempt to obtain the securities loaned at any time on notice of not more than five business days. In the event of bankruptcy or other default of the borrower, the Fund could experience delays in liquidating the loan collateral or recovering the loaned securities and incur expenses related to enforcing its rights. There could also be a decline in the value of the collateral or in the fair value of the securities loaned while the Fund seeks to enforce its rights thereto, and the Fund could experience subnormal levels of income or lack of access to income during that period. A Fund may not exercise proxy voting rights for a security that is on loan if it is unable to recall the security prior to the record date. The Trust, on behalf of the Funds, has entered into an agreement with State Street to serve as its agent for the purpose of lending securities and maintaining the collateral account. Security lending income, if any, net of any fees retained by the securities lending agent, is included in the Statement of Operations.

At March 31, 2018 International and Int'l Small Cap had securities on loan with a value of $870,105,714 and $22,300,303, respectively, and held as collateral for the loans U.S. Treasury securities with a value of $914,014,754 and $23,441,831, respectively.

Interfund lending

Pursuant to an exemptive order issued by the SEC, the Funds may participate in an interfund lending program. This program provides an alternative credit facility that allows the Funds to lend money to, and borrow money from, each other for temporary purposes (an "Interfund Loan"). All Interfund Loans are subject to conditions pursuant to the SEC exemptive order designed to ensure fair and equitable treatment of participating Funds. Any Interfund Loan would consist only of uninvested cash reserves that the lending Fund otherwise would invest in short-term repurchase agreements or other short-term instruments. There were no Interfund Loans during the period ended March 31, 2018.

Restricted securities

Each Fund may invest in restricted securities, which generally are considered illiquid, but such illiquid securities may not comprise over 15% of the value of a Fund's net assets at the time of investment. The following investments, the sales of which are subject to restrictions on resale under federal securities laws, have been valued in good faith according to the securities valuation procedures established by the Board of Trustees (as stated in the Security valuation section) since their acquisition dates.

Oakmark.com 65

Oakmark Funds

Notes to Financial Statements (continued)

At March 31, 2018 Equity and Income and International held the following restricted securities:

Equity and Income

Par Value (000)		Security Name	Acquisition Date	Cost (000)		Value (000)		Percentage of Net Assets
$	70,853	Activision Blizzard, Inc.	09/12/13 - 05/08/17	$	74,012	$	74,113		0.47	%
	9,950	Amazon.com, Inc.	08/15/17		9,933		9,600		0.06	%
	99,500	Anthem, Inc.	03/23/18		99,424		99,424		0.63	%
	26,865	BAT Capital Corp.	08/08/17		26,865		26,182		0.17	%
	250	CCO Holdings LLC / CCO Holdings Capital Corp.	03/09/17		248		237		0.00	%
	24,875	Caesars Resort Collection LLC / CRC Finco, Inc.	09/29/17		24,743		23,847		0.15	%
	109,450	Campbell Soup Co.	02/26/18 - 03/22/18		109,197		109,181		0.69	%
	49,750	Chevron Corp.	03/02/18		49,743		49,743		0.32	%
	14,438	CommScope Technologies LLC	03/02/17 - 06/22/17		14,299		13,716		0.09	%
	3,980	CommScope, Inc.	05/26/17 - 07/07/17		4,115		4,057		0.03	%
	37,000	Credit Suisse Group AG	12/04/13 - 06/11/14		37,000		39,665		0.25	%
	17,665	Dell International LLC / EMC Corp.	05/17/16		17,660		18,625		0.12	%
	1,000	Delphi Technologies PLC	09/14/17		995		959		0.01	%
	4,910	EMI Music Publishing Group North America Holdings, Inc.	05/26/16		4,910		5,315		0.03	%
	284,086	General Mills, Inc.	03/08/18 - 03/29/18		283,928		283,928		1.80	%
	19,900	Glencore Funding LLC	10/20/17		19,779		19,035		0.12	%
	100	IHS Markit, Ltd.	02/06/17		100		102		0.00	%
	44,200	International Game Technology PLC	02/09/15		44,210		46,545		0.29	%
	5,970	Itron Inc.	12/08/17		5,948		5,882		0.04	%
	2,000	KFC Holding Co/Pizza Hut Holdings LLC/Taco Bell of America LLC	06/02/16		2,000		1,990		0.01	%
	39,500	Kellogg Co.	03/16/18 - 03/19/18		39,491		39,491		0.25	%
	199,000	Kraft Food Group, Inc.	02/01/18 - 02/20/18		198,856		198,856		1.26	%
	6,260	Kraft Heinz Foods Co	02/17/16 - 02/23/16		6,573		6,527		0.04	%
	1,990	Lithia Motors, Inc.	07/17/17		1,990		1,990		0.01	%
	21,910	Live Nation Entertainment, Inc.	08/15/12 - 03/15/18		21,910		21,644		0.14	%
	33,705	MSCI, Inc.	08/10/15 - 09/01/16		34,625		34,299		0.22	%
	4,980	Mattel Inc.	12/15/17		4,980		4,868		0.03	%
	94,600	MetLife Short Term Funding LLC	02/20/18 - 03/29/18		94,416		94,416		0.60	%
	16,349	Mondelez International Holdings Netherlands BV	01/03/17 - 01/25/17		15,976		15,796		0.10	%
	25,870	Netflix, Inc.	10/23/17 - 10/25/17		25,745		24,877		0.16	%
	6,970	Penn National Gaming, Inc.	01/17/17		6,970		6,719		0.04	%
	3,000	Post Holdings, Inc.	07/25/16 - 02/09/17		3,000		2,890		0.02	%
	26,880	Principal Life Global Funding II	11/14/16 - 01/03/17		26,847		26,314		0.17	%
	7,800	Quintiles IMS, Inc.	09/14/16		7,806		7,772		0.05	%
	1,267	S&P Global, Inc.	01/19/17		1,269		1,266		0.01	%
	129,820	Schlumberger Holdings Corp.	12/10/15 - 03/29/18		129,571		129,704		0.82	%
	16,370	Smithfield Foods, Inc.	01/25/17 - 09/28/17		16,359		15,996		0.10	%
	1,990	Station Casinos LLC	09/07/17		1,990		1,891		0.01	%
	1,000	Symantec Corp.	02/07/17		1,000		1,009		0.01	%
	11,945	The Howard Hughes Corp.	03/03/17		11,945		11,796		0.07	%
	6,965	USG Corp.	05/01/17		6,965		7,035		0.04	%
	52,470	Universal Health Services, Inc.	01/14/16 - 11/09/16		52,942		53,081		0.34	%
	9,950	Weatherford International LLC	02/21/18		9,885		8,952		0.06	%
	12,140	Wolverine World Wide, Inc.	09/16/16 - 05/11/17		12,070		11,837		0.08	%
						$	1,561,172	$	9.91	%

66 OAKMARK FUNDS

Oakmark Funds

Notes to Financial Statements (continued)

International

Par Value (000)		Security Name	Acquisition Date	Cost (000)		Value (000)		Percentage of Net Assets
$	50,000	Abbvie, Inc.	03/15/18	$	49,997	$	49,997		0.11	%
	85,000	Anthem, Inc.	03/02/18 - 03/23/18		84,923		84,923		0.18	%
	50,000	Chevron Corp.	03/02/18		49,993		49,993		0.11	%
	90,000	General Mills, Inc.	03/07/18 - 03/14/18		89,952		89,952		0.20	%
	25,000	Kraft Food Group, Inc.	02/12/18		24,990		24,990		0.05	%
						$	299,855		0.65	%

Federal income taxes

It is each Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all of its net taxable income, including any net realized gains on investments, to its shareholders. Therefore, no federal income tax provision is required. There is no material liability for unrecognized tax benefits in the accompanying financial statements. Generally, each of the tax years in the four-year period ended September 30, 2017 remains subject to examination by taxing authorities.

2. TRANSACTIONS WITH AFFILIATES

Each Fund has an investment advisory agreement with the Adviser. For management services and facilities furnished, the Adviser receives from each Fund a monthly fee based on that Fund's net assets at the end of the preceding month. Annual fee rates are as follows:

Fund				Advisory Fees
Oakmark				1.00% up to $2 billion; 0.90% on the next $1 billion; 0.80% on the next $2 billion; 0.75% on the next $2.5 billion; 0.675% on the next $2.5 billion; 0.625% on the next $2.5 billion; 0.620% on the next $12.5 billion; 0.615% on the next $10 billion; and 0.610% over $35 billion
Select				1.00% up to $1 billion; 0.95% on the next $500 million; 0.90% on the next $500 million; 0.85% on the next $500 million; 0.80% on the next $2.5 billion; 0.75% on the next $5 billion; and 0.725% over $10 billion
Equity and Income				0.75% up to $5 billion; 0.70% on the next $2.5 billion; 0.675% on the next $2.5 billion; 0.65% on the next $2.5 billion; 0.60% on the next $3.5 billion; 0.585% on the next $5 billion; 0.5775% on the next $7 billion; and 0.5725% over $28 billion
Fund				Advisory Fees
Global				1.00% up to $2 billion; 0.95% on the next $2 billion; 0.90% on the next $4 billion; and 0.875% over $8 billion
Global Select				1.00% up to $2 billion; 0.95% on the next $1 billion; 0.875% on the next $4 billion; and 0.85% over $7 billion
International				1.00% up to $2 billion; 0.95% on the next $1 billion; 0.85% on the next $2 billion; 0.825% on the next $2.5 billion; 0.815% on the next $3.5 billion; 0.805% on the next $5.5 billion; 0.80% on the next $6.5 billion; 0.795% on the next $7 billion; 0.790% on the next $5 billion; 0.785% on the next $10 billion; 0.775% on the next $5 billion; and 0.770% over $50 billion
Int'l Small Cap				1.25% up to $500 million; 1.10% on the next $1 billion; 1.05% on the next $2 billion; 1.025% on the next $1.5 billion; and 1.00% over $5 billion

The Adviser has contractually agreed, through January 28, 2019, to waive the advisory fee otherwise payable to it by the following percentages with respect to each Fund: 0.043% for Oakmark; 0.074% for Select; 0.099% for Equity and Income; 0.059% for Global; 0.066% for Global Select; and 0.052% for International. When determining whether a Fund's total expenses exceed the additional contractual expense cap described below, a Fund's net advisory fee, reflecting application of the advisory fee waiver, will be used to calculate a Fund's total expenses. The Adviser is not entitled to collect on or make a claim for waived fees that are the subject of this undertaking at any time in the future. This arrangement may only be modified or amended with approval from a Fund and the Adviser. The advisory fees waived for each Fund are included in the Statement of Operations.

The Adviser has contractually agreed, through January 28, 2019, to reimburse each Fund Class to the extent, but only to the extent, that the annualized expenses (excluding taxes, interest, all commissions and other normal charges incident to the

Oakmark.com 67

Oakmark Funds

Notes to Financial Statements (continued)

purchase and sale of portfolio securities, and extraordinary charges such as litigation costs, but including fees paid to the Adviser) exceed the percent set forth below of average daily net assets of each Fund Class.

Fund	Investor Class			Advisor Class			Institutional Class			Service Class
Oakmark		1.50	%		1.40	%		1.30	%		1.75	%
Select		1.50			1.40			1.30			1.75
Equity and Income		1.00			0.90			0.80			1.25
Global		1.75			1.65			1.55			2.00
Global Select		1.75			1.65			1.55			2.00
International		2.00			1.90			1.80			2.25
Int'l Small Cap		2.00			1.90			1.80			2.25

The Adviser is entitled to recoup from assets attributable to any Fund Class amounts reimbursed to that Fund Class, except to the extent that the Fund Class already has paid such recoupment to the Adviser or such recoupment would cause that Class' total operating expenses to exceed the expense limitation or to exceed any lower limit in effect at the time of recoupment. Any such repayment must be made within three fiscal years after the year in which the reimbursement occurred. As of March 31, 2018, there were no amounts subject to recoupment.

The Adviser has voluntarily reimbursed certain of the Funds for a portion of Transfer Agency costs. For the period ended March 31, 2018, the Adviser reimbursed $3,865 and $68,421 to Oakmark and International for transfer agency expenses related to Institutional Class Shares. These amounts are not subject to recovery under the contractual expense reimbursement agreement described above.

The Adviser and/or the Funds have entered into agreements with financial intermediaries to provide recordkeeping, processing, shareholder communications and other services to customers of the intermediaries and have agreed to compensate the intermediaries for providing those services. Certain of those services would be provided by the Funds if the shares of those customers were registered directly with the Funds' transfer agent. Accordingly, the Funds pay a portion of the intermediary fees pursuant to an agreement with the Adviser and the Adviser pays the remainder of the fees. The fees incurred by the Funds are reflected as other shareholder servicing fees in the Statements of Operations.

The Independent Trustees of the Trust may participate in the Trust's Deferred Compensation Plan for Independent Trustees. Participants in the plan may elect to defer all or a portion of their compensation. Amounts deferred are retained by the Trust and represent an unfunded obligation of the Trust. The value of a participant's deferral account is determined by reference to the change in value of Investor Class shares of one or more of the Funds or a money market fund as specified by the participant. Benefits would be payable after a stated number of years or retirement from the Board of Trustees. The accrued obligations of the Funds under the plan are reflected as deferred Trustee compensation in the Statements of Assets and Liabilities. The change in the accrued obligations for the period is included in Trustees fees in the Statements of Operations. The Trust pays the compensation of the Trustees other than those affiliated with the Adviser and all expenses incurred in connection with their services to the Trust. The Trust does not provide any pension or retirement benefits to its Trustees.

The Funds reimburse the Adviser for a portion of the compensation paid to the Funds' Chief Compliance Officer ("CCO"). The CCO expenses incurred by the Funds are included in other expenses in the Statements of Operations.

3. FEDERAL INCOME TAXES

At March 31, 2018 the cost of investments for federal income tax purposes and related composition of unrealized gains and losses for each Fund were as follows (in thousands):

Fund	Cost of Investments for Federal Income Tax Purposes		Gross Unrealized Appreciation		Gross Unrealized (Depreciation)			Net Unrealized Appreciation (Depreciation)
Oakmark	$	12,255,906	$	7,449,437	$	(279,890	)	$	7,169,547
Select		4,435,792		2,248,603		(315,631	)		1,932,972
Equity and Income		11,849,867		4,178,879		(95,092	)		4,083,787
Global		1,978,469		681,203		(49,625	)		631,578
Global Select		2,352,822		596,293		(125,424	)		470,869
International		42,005,551		6,328,936		(1,904,445	)		4,424,491
Int'l Small Cap		2,901,486		350,246		(336,676	)		13,570

68 OAKMARK FUNDS

Oakmark Funds

Notes to Financial Statements (continued)

At March 31, 2018, the components of distributable earnings on a tax basis (excluding unrealized appreciation (depreciation)) were as follows (in thousands):

	Undistributed Ordinary Income		Undistributed Long- Term Gain		Total Distributable Earnings
Oakmark	$	27,826	$	995,527	$	1,023,353
Select		1,837		381,000		382,837
Equity and Income		53,159		836,307		889,466
Global		0		108,393		108,393
Global Select		0		16,610		16,610
International		40,092		996,703		1,036,795
Int'l Small Cap		376		202,467		202,843

During the six-month period ended March 31, 2018, and the year ended September 30, 2017, the tax character of distributions paid was as follows (in thousands):

	Period Ended March 31, 2018				Year Ended September 30, 2017
Fund	Distributions Paid from Ordinary Income		Distributions Paid from Long-Term Capital Gain		Distributions Paid from Ordinary Income		Distributions Paid from Long-Term Capital Gain
Oakmark	$	97,786	$	679,189	$	164,730	$	239,263
Select		19,610		239,694		48,723		205,002
Equity and Income		216,184		1,026,696		240,000		411,885
Global		36,069		158,299		26,380		0
Global Select		26,254		125,537		21,509		0
International		580,202		706,153		367,268		0
Int'l Small Cap		37,634		74,020		56,246		13,933

On March 31, 2018, the Funds had temporary book/tax differences in undistributed earnings that were primarily attributable to trustee deferred compensation expenses, passive foreign investment companies, foreign currency contracts and deferrals of capital losses on wash sales. Temporary differences will reverse over time. The Funds have permanent differences in book/tax undistributed earnings primarily attributable to currency gains and losses, equalization debits, and distribution re-designations. Permanent differences have been recorded in their respective component of the Analysis of Net Assets.

During the six-month period ended March 31, 2018, the following amounts were classified due to permanent differences between book and tax accounting. (In thousands):

Fund	Paid in Capital		Accumulated Net Realized Gain (Loss) on Investments			Undistributed Net Investment Income (Loss)
Oakmark	$	171,871	$	(138,505	)	$	(33,366	)
Select		41,749		(38,501	)		(3,248	)
Equity and Income		149,759		(118,834	)		(30,925	)
Global		61,807		(65,011	)		3,204
Global Select		35,863		(33,641	)		(2,222	)
International		103,404		(129,873	)		26,469
Int'l Small Cap		18,902		(11,436	)		(7,466	)

4. INVESTMENT TRANSACTIONS

For the six-month period ended March 31, 2018, transactions in investment securities (excluding short-term and U.S. government securities) were as follows (in thousands):

	Oakmark		Select		Equity and Income		Global		Global Select		International		Int'l Small Cap
Purchases	$	2,786,486	$	1,260,259	$	1,362,307	$	325,246	$	160,088	$	11,617,932	$	758,445
Proceeds from sales		2,937,852		1,455,188		2,179,823		434,970		119,673		5,947,461		803,032

Oakmark.com 69

Oakmark Funds

Notes to Financial Statements (continued)

Purchases at cost and proceeds from sales (in thousands) of long-term U.S. government securities for the six-month period ended March 31, 2018, were $247,508 and $0, respectively, for Equity and Income.

During the six-month period ended March 31, 2018, Oakmark and Select engaged in sale transactions (in thousands) totaling $442,037, respectively, with funds that have a common investment adviser. These sale transactions complied with Rule 17a-7 under the 1940 act.

5. INVESTMENTS IN AFFILIATED ISSUERS

A company was considered to be an affiliate of a Fund because that Fund owned 5% or more of the company's voting securities during all or part of the six-month period ended March 31, 2018. Purchase and sale transactions and dividend and interest income earned during the period on these securities are listed after the Fund's Schedule of Investments.

6. SUBSEQUENT EVENTS

Management has evaluated the possibility of subsequent events existing in the Funds' financial statements. Management has determined that there are no material events that would require adjustment or disclosure in the Funds' financial statements through the date of the publication of this report.

70 OAKMARK FUNDS

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Oakmark Funds

Financial Highlights

For a share outstanding throughout each period

			Income from Investment Operations:									Less Distributions:																Ratios/Supplemental Data:
	Net Asset Value, Beginning of Period		Net Investment Income (Loss)			Net Gain (Loss) on Investments (both realized and unrealized)			Total From Investment Operations			Dividends From Net Investment Income			Distributions From Capital Gains			Total Distributions			Redemption Fees		Net Asset Value, End of Period		Total Return			Net Assets, End of Period ($million)		Ratio of Net Expenses to Average Net Assets			Ratio of Net Investment Income (Loss) to Average Net Assets			Ratio of Gross Expenses to Average Net Assets			Portfolio Turnover Rate
Oakmark Fund
Investor Class
10/1/17-3/31/18+	$	82.85		0.29			3.88			4.17			(0.40	)		(3.03	)		(3.43	)		0.00	$	83.59		5.05	%	$	13,806.5		0.84	%†		0.61	%†		0.88	%†		15	%
9/30/17	$	68.70		0.76			15.26			16.02			(0.77	)		(1.10	)		(1.87	)		0.00	$	82.85		23.79	%	$	14,200.2		0.86	%		0.91	%		0.90	%		19	%
9/30/16	$	60.93		0.82			7.85			8.67			(0.60	)		(0.30	)		(0.90	)		0.00	$	68.70		14.36	%	$	14,636.0		0.89	%		1.14	%		0.89	%		20	%
9/30/15	$	68.46		0.59			(3.57	)		(2.98	)		(0.42	)		(4.13	)		(4.55	)		0.00	$	60.93		-4.87	%	$	16,445.0		0.85	%^(a)		0.92	%		0.85	%^(a)		33	%
9/30/14	$	59.73		0.43			11.22			11.65			(0.32	)		(2.60	)		(2.92	)		0.00	$	68.46		20.01	%	$	16,489.4		0.87	%		0.76	%		0.87	%		25	%
9/30/13	$	48.97		0.42	^(b)		12.22			12.64			(0.38	)		(1.50	)		(1.88	)		0.00	$	59.73		26.75	%	$	10,409.0		0.95	%		0.78	%		0.95	%		19	%
Advisor Class
10/1/17-3/31/18+	$	82.97		0.30	^(b)		3.91			4.21			(0.54	)		(3.03	)		(3.57	)		0.00	$	83.61		5.09	%	$	2,404.1		0.75	%†		0.69	%†		0.79	%†		15	%
9/30/17^(c)	$	71.35		0.66	^(b)		10.96			11.62			0.00			0.00			0.00			0.00	$	82.97		16.29	%	$	1,839.8		0.72	%†		1.01	%†		0.76	%†		19	%
Institutional Class
10/1/17-3/31/18+	$	82.97		0.32	^(b)		3.91			4.23			(0.56	)		(3.03	)		(3.59	)		0.00	$	83.61		5.12	%	$	2,996.4		0.70	%†		0.75	%†		0.74	%†		15	%
9/30/17^(c)	$	71.35		0.67	^(b)		10.95			11.62			0.00			0.00			0.00			0.00	$	82.97		16.29	%	$	2,569.2		0.68	%†		1.02	%†		0.73	%†		19	%
Service Class
10/1/17-3/31/18+	$	82.48		0.13	^(b)		3.88			4.01			(0.19	)		(3.03	)		(3.22	)		0.00	$	83.27		4.88	%	$	154.3		1.14	%†		0.31	%†		1.18	%†		15	%
9/30/17	$	68.34		0.47	^(b)		15.28			15.75			(0.51	)		(1.10	)		(1.61	)		0.00	$	82.48		23.45	%	$	168.4		1.14	%		0.63	%		1.18	%		19	%
9/30/16	$	60.59		0.59			7.83			8.42			(0.37	)		(0.30	)		(0.67	)		0.00	$	68.34		14.00	%	$	177.2		1.21	%		0.86	%		1.21	%		20	%
9/30/15	$	68.18		0.38	^(b)		(3.56	)		(3.18	)		(0.28	)		(4.13	)		(4.41	)		0.00	$	60.59		-5.19	%	$	194.4		1.19	%^(a)		0.57	%		1.19	%^(a)		33	%
9/30/14	$	59.58		0.23			11.19			11.42			(0.22	)		(2.60	)		(2.82	)		0.00	$	68.18		19.64	%	$	170.7		1.18	%		0.45	%		1.18	%		25	%
9/30/13	$	48.89		0.27	^(b)		12.20			12.47			(0.28	)		(1.50	)		(1.78	)		0.00	$	59.58		26.41	%	$	93.8		1.23	%		0.49	%		1.23	%		19	%
+	Unaudited.
†	Data has been annualized.
(a)	Includes interest expense that amounts to less than 0.01%.
(b)	Computed using average shares outstanding throughout the period.
(c)	Commenced on 11/30/2016.
Oakmark Select Fund
Investor Class
10/1/17-3/31/18+	$	47.84		0.06			0.01			0.07			(0.14	)		(1.87	)		(2.01	)		0.00	$	45.90		0.06	%	$	4,630.7		0.96	%†		0.19	%†		1.03	%†		21	%
9/30/17	$	40.99		0.17			8.78			8.95			(0.40	)		(1.70	)		(2.10	)		0.00	$	47.84		22.61	%	$	4,854.7		0.96	%		0.39	%		1.03	%		22	%
9/30/16	$	36.79		0.39			3.93			4.32			(0.12	)		0.00			(0.12	)		0.00	$	40.99		11.76	%	$	4,962.7		0.98	%		0.92	%		0.98	%		38	%
9/30/15	$	44.71		0.08	^(a)		(2.60	)		(2.52	)		0.00			(5.40	)		(5.40	)		0.00	$	36.79		-6.75	%	$	5,499.3		0.95	%		0.20	%		0.95	%		46	%
9/30/14	$	37.74		(0.00	)^(b)		9.14			9.14			(0.04	)		(2.13	)		(2.17	)		0.00	$	44.71		25.03	%	$	6,238.8		0.95	%		(0.03	)%		0.95	%		37	%
9/30/13	$	32.33		0.04			8.40			8.44			(0.03	)		(3.00	)		(3.03	)		0.00	$	37.74		28.40	%	$	3,944.6		1.01	%		0.11	%		1.01	%		24	%
Advisor Class
10/1/17-3/31/18+	$	47.90		0.08	^(a)		0.02			0.10			(0.21	)		(1.87	)		(2.08	)		0.00	$	45.92		0.13	%	$	677.2		0.81	%†		0.33	%†		0.89	%†		21	%
9/30/17^(c)	$	41.93		0.20	^(a)		5.77			5.97			0.00			0.00			0.00			0.00	$	47.90		14.24	%	$	571.3		0.81	%†		0.54	%†		0.89	%†		22	%
Institutional Class
10/1/17-3/31/18+	$	47.91		0.09	^(a)		0.02			0.11			(0.22	)		(1.87	)		(2.09	)		0.00	$	45.93		0.14	%	$	799.5		0.79	%†		0.35	%†		0.87	%†		21	%
9/30/17^(c)	$	41.93		0.22	^(a)		5.76			5.98			0.00			0.00			0.00			0.00	$	47.91		14.26	%	$	768.9		0.79	%†		0.58	%†		0.87	%†		22	%
Service Class
10/1/17-3/31/18+	$	47.21		(0.03	)^(a)		0.01			(0.02	)		0.00			(1.87	)		(1.87	)		0.00	$	45.32		-0.12	%	$	18.3		1.31	%†		(0.14	)%†		1.38	%†		21	%
9/30/17	$	40.44		0.05	^(a)		8.68			8.73			(0.26	)		(1.70	)		(1.96	)		0.00	$	47.21		22.29	%	$	27.9		1.24	%		0.11	%		1.31	%		22	%
9/30/16	$	36.31		0.23	^(a)		3.90			4.13			0.00			0.00			0.00			0.00	$	40.44		11.37	%	$	34.6		1.32	%		0.62	%		1.32	%		38	%
9/30/15	$	44.32		(0.05	)^(a)		(2.56	)		(2.61	)		0.00			(5.40	)		(5.40	)		0.00	$	36.31		-7.04	%	$	36.8		1.27	%		(0.12	)%		1.27	%		46	%
9/30/14	$	37.50		(0.18	)		9.13			8.95			0.00			(2.13	)		(2.13	)		0.00	$	44.32		24.66	%	$	24.4		1.23	%		(0.30	)%		1.23	%		37	%
9/30/13	$	32.21		(0.11	)		8.40			8.29			0.00			(3.00	)		(3.00	)		0.00	$	37.50		27.99	%	$	15.0		1.33	%		(0.21	)%		1.33	%		24	%
+	Unaudited.
†	Data has been annualized.
(a)	Computed using average shares outstanding throughout the period.
(b)	Amount rounds to less than $0.01 per share.
(c)	Commenced on 11/30/2016.

72 OAKMARK FUNDS

Oakmark.com 73

Oakmark Funds

Financial Highlights

For a share outstanding throughout each period

			Income from Investment Operations:									Less Distributions:																	Ratios/Supplemental Data:
	Net Asset Value, Beginning of Period		Net Investment Income (Loss)			Net Gain (Loss) on Investments (both realized and unrealized)			Total From Investment Operations			Dividends From Net Investment Income			Distributions From Capital Gains			Total Distributions			Redemption Fees			Net Asset Value, End of Period		Total Return			Net Assets, End of Period ($million)		Ratio of Net Expenses to Average Net Assets			Ratio of Net Investment Income (Loss) to Average Net Assets			Ratio of Gross Expenses to Average Net Assets			Portfolio Turnover Rate
Oakmark Equity and Income Fund
Investor Class
10/1/17-3/31/18+	$	33.41		0.21	^(a)		0.65			0.86			(0.43	)		(2.17	)		(2.60	)		0.00		$	31.67		2.53	%	$	12,877.1		0.78	%†		1.27	%†		0.88	%†		11	%
9/30/17	$	30.20		0.58			3.89			4.47			(0.47	)		(0.79	)		(1.26	)		0.00		$	33.41		15.30	%	$	14,249.1		0.78	%		1.71	%		0.87	%		18	%
9/30/16	$	29.98		0.36	^(a)		1.73			2.09			(0.34	)		(1.53	)		(1.87	)		0.00		$	30.20		7.34	%	$	15,367.7		0.79	%		1.22	%		0.79	%		18	%
9/30/15	$	33.65		0.36			(1.04	)		(0.68	)		(0.27	)		(2.72	)		(2.99	)		0.00		$	29.98		-2.53	%	$	17,285.5		0.75	%		1.06	%		0.75	%		25	%
9/30/14	$	33.06		0.29			3.02			3.31			(0.17	)		(2.55	)		(2.72	)		0.00		$	33.65		10.39	%	$	19,392.7		0.74	%		0.85	%		0.74	%		18	%
9/30/13	$	29.09		0.28			4.68			4.96			(0.27	)		(0.72	)		(0.99	)		0.00		$	33.06		17.63	%	$	18,222.5		0.77	%		0.89	%		0.77	%		25	%^(b)
Advisor Class
10/1/17-3/31/18+	$	33.46		0.24	^(a)		0.65			0.89			(0.50	)		(2.17	)		(2.67	)		0.00		$	31.68		2.60	%	$	1,510.0		0.65	%†		1.47	%†		0.75	%†		11	%
9/30/17^(c)	$	29.97		0.55	^(a)		2.94			3.49			0.00			0.00			0.00			0.00		$	33.46		11.64	%	$	724.7		0.61	%†		2.07	%†		0.71	%†		18	%
Institutional Class
10/1/17-3/31/18+	$	33.46		0.25	^(a)		0.65			0.90			(0.50	)		(2.17	)		(2.67	)		0.00		$	31.69		2.65	%	$	861.7		0.59	%†		1.50	%†		0.69	%†		11	%
9/30/17^(c)	$	29.97		0.59	^(a)		2.90			3.49			0.00			0.00			0.00			0.00		$	33.46		11.64	%	$	536.3		0.59	%†		2.19	%†		0.69	%†		18	%
Service Class
10/1/17-3/31/18+	$	33.19		0.16	^(a)		0.65			0.81			(0.34	)		(2.17	)		(2.51	)		0.00		$	31.49		2.39	%	$	543.2		1.06	%†		0.99	%†		1.16	%†		11	%
9/30/17	$	30.00		0.45			3.90			4.35			(0.37	)		(0.79	)		(1.16	)		0.00		$	33.19		14.95	%	$	622.1		1.05	%		1.44	%		1.14	%		18	%
9/30/16	$	29.75		0.26	^(a)		1.73			1.99			(0.21	)		(1.53	)		(1.74	)		0.00		$	30.00		7.02	%	$	744.2		1.10	%		0.90	%		1.10	%		18	%
9/30/15	$	33.41		0.25			(1.03	)		(0.78	)		(0.16	)		(2.72	)		(2.88	)		0.00		$	29.75		-2.84	%	$	900.7		1.09	%		0.71	%		1.09	%		25	%
9/30/14	$	32.83		0.18	^(a)		3.00			3.18			(0.05	)		(2.55	)		(2.60	)		0.00		$	33.41		10.04	%	$	1,157.2		1.05	%		0.54	%		1.05	%		18	%
9/30/13	$	28.90		0.17			4.66			4.83			(0.18	)		(0.72	)		(0.90	)		0.00		$	32.83		17.23	%	$	1,211.4		1.10	%		0.56	%		1.10	%		25	%^(b)
+	Unaudited.
†	Data has been annualized.
(a)	Computed using average shares outstanding throughout the period.
(b)	The ratio excludes in-kind transactions.
(c)	Commenced on 11/30/2016.
Oakmark Global Fund
Investor Class
10/1/17-3/31/18+	$	34.32		(0.05	)		0.49			0.44			(0.30	)		(2.18	)		(2.48	)		0.00		$	32.28		1.24	%	$	1,653.1		1.14	%†		(0.30	)%†		1.20	%†		12	%
9/30/17	$	26.36		0.29	^(a)		7.97			8.26			(0.30	)		0.00			(0.30	)		0.00		$	34.32		31.64	%	$	1,811.8		1.15	%		0.96	%		1.21	%		32	%
9/30/16	$	26.34		0.32			0.48			0.80			(0.31	)		(0.47	)		(0.78	)		0.00		$	26.36		2.93	%	$	2,328.9		1.17	%		1.14	%		1.17	%		32	%
9/30/15	$	30.34		0.25	^(a)		(2.16	)		(1.91	)		(0.35	)		(1.74	)		(2.09	)		0.00		$	26.34		-6.92	%	$	2,950.8		1.12	%		0.86	%		1.12	%		36	%
9/30/14	$	29.70		0.23	^(a)		1.71			1.94			(0.75	)		(0.55	)		(1.30	)		0.00		$	30.34		6.70	%	$	3,503.8		1.11	%		0.76	%		1.11	%		31	%
9/30/13	$	21.63		0.21			8.23			8.44			(0.37	)		0.00			(0.37	)		0.00	^(b)	$	29.70		39.55	%	$	2,880.4		1.13	%		0.75	%		1.13	%		45	%^(c)
Advisor Class
10/1/17-3/31/18+	$	34.36		(0.03	)^(a)		0.49			0.46			(0.36	)		(2.18	)		(2.54	)		0.00		$	32.28		1.28	%	$	575.4		1.05	%†		(0.18	)%†		1.10	%†		12	%
9/30/17^(d)	$	27.22		0.24	^(a)		6.90			7.14			0.00			0.00			0.00			0.00		$	34.36		26.23	%	$	499.9		1.01	%†		0.89	%†		1.07	%†		32	%
Institutional Class
10/1/17-3/31/18+	$	34.38		(0.02	)^(a)		0.50			0.48			(0.38	)		(2.18	)		(2.56	)		0.00		$	32.30		1.33	%	$	363.2		0.97	%†		(0.11	)%†		1.03	%†		12	%
9/30/17^(d)	$	27.22		0.26			6.90			7.16			0.00			0.00			0.00			0.00		$	34.38		26.30	%	$	309.6		0.96	%†		1.55	%†		1.02	%†		32	%
Service Class
10/1/17-3/31/18+	$	33.40		(0.09	)^(a)		0.47			0.38			(0.22	)		(2.18	)		(2.40	)		0.00		$	31.38		1.12	%	$	21.9		1.42	%†		(0.57	)%†		1.48	%†		12	%
9/30/17	$	25.65		(0.14	)		8.11			7.97			(0.22	)		0.00			(0.22	)		0.00		$	33.40		31.27	%	$	22.5		1.42	%		0.63	%		1.48	%		32	%
9/30/16	$	25.62		0.21	^(a)		0.47			0.68			(0.18	)		(0.47	)		(0.65	)		0.00		$	25.65		2.60	%	$	25.6		1.50	%		0.82	%		1.50	%		32	%
9/30/15	$	29.57		0.13	^(a)		(2.10	)		(1.97	)		(0.24	)		(1.74	)		(1.98	)		0.00		$	25.62		-7.33	%	$	32.3		1.52	%		0.46	%		1.52	%		36	%
9/30/14	$	28.98		0.13	^(a)		1.67			1.80			(0.66	)		(0.55	)		(1.21	)		0.00		$	29.57		6.35	%	$	41.8		1.45	%		0.42	%		1.45	%		31	%
9/30/13	$	21.11		0.03			8.14			8.17			(0.30	)		0.00			(0.30	)		0.00	^(b)	$	28.98		39.11	%	$	38.9		1.48	%		0.40	%		1.48	%		45	%^(c)
+	Unaudited.
†	Data has been annualized.
(a)	Computed using average shares outstanding throughout the period.
(b)	Amount rounds to less than $0.01 per share.
(c)	The ratio excludes in-kind transactions.
(d)	Commenced on 11/30/2016.

74 OAKMARK FUNDS

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Oakmark Funds

Financial Highlights

For a share outstanding throughout each period

			Income from Investment Operations:									Less Distributions:																Ratios/Supplemental Data:
	Net Asset Value, Beginning of Period		Net Investment Income (Loss)			Net Gain (Loss) on Investments (both realized and unrealized)			Total From Investment Operations			Dividends From Net Investment Income			Distributions From Capital Gains			Total Distributions			Redemption Fees		Net Asset Value, End of Period		Total Return			Net Assets, End of Period ($million)		Ratio of Net Expenses to Average Net Assets			Ratio of Net Investment Income (Loss) to Average Net Assets			Ratio of Gross Expenses to Average Net Assets			Portfolio Turnover Rate
Oakmark Global Select Fund
Investor Class
10/1/17-3/31/18+	$	19.78		(0.02	)^(a)		(0.04	)		(0.06	)		(0.17	)		(0.89	)		(1.06	)		0.00	$	18.66		-0.43	%	$	1,827.3		1.12	%†		(0.18	)%†		1.18	%†		4	%
9/30/17	$	15.81		0.26			3.88			4.14			(0.17	)		0.00			(0.17	)		0.00	$	19.78		26.41	%	$	2,035.3		1.12	%		1.25	%		1.18	%		39	%
9/30/16	$	15.19		0.18			1.31			1.49			(0.13	)		(0.74	)		(0.87	)		0.00	$	15.81		9.92	%	$	2,037.1		1.15	%		1.12	%		1.15	%		17	%
9/30/15	$	16.63		0.12			(0.65	)		(0.53	)		(0.14	)		(0.77	)		(0.91	)		0.00	$	15.19		-3.44	%	$	2,033.4		1.13	%		0.70	%		1.13	%		48	%
9/30/14	$	15.71		0.12			1.21			1.33			(0.14	)		(0.27	)		(0.41	)		0.00	$	16.63		8.52	%	$	1,937.3		1.13	%		0.92	%		1.13	%		24	%
9/30/13	$	11.65		0.14			4.18			4.32			(0.16	)		(0.10	)		(0.26	)		0.00	$	15.71		37.69	%	$	1,159.8		1.15	%		1.01	%		1.15	%		36	%
Advisor Class
10/1/17-3/31/18+	$	19.81		(0.02	)^(a)		(0.04	)		(0.06	)		(0.20	)		(0.89	)		(1.09	)		0.00	$	18.66		-0.43	%	$	245.5		1.06	%†		(0.16	)%†		1.12	%†		4	%
9/30/17^(b)	$	16.39		0.25	^(a)		3.17			3.42			0.00			0.00			0.00			0.00	$	19.81		20.87	%	$	148.4		1.00	%†		1.58	%†		1.07	%†		39	%
Institutional Class
10/1/17-3/31/18+	$	19.81		0.00	^(c)		(0.04	)		(0.04	)		(0.21	)		(0.89	)		(1.10	)		0.00	$	18.67		-0.34	%	$	755.7		0.96	%†		(0.05	)%†		1.03	%†		4	%
9/30/17^(b)	$	16.39		0.23	^(a)		3.19			3.42			0.00			0.00			0.00			0.00	$	19.81		20.87	%	$	608.0		0.94	%†		1.46	%†		1.00	%†		39	%
+	Unaudited.
†	Data has been annualized.
(a)	Computed using average shares outstanding throughout the period.
(b)	Commenced on 11/30/2016.
(c)	Amount rounds to less than $0.01 per share.
Oakmark International Fund
Investor Class
10/1/17-3/31/18+	$	28.77		0.00	^(a)		(0.12	)		(0.12	)		(0.39	)		(0.48	)		(0.87	)		0.00	$	27.78		-0.45	%	$	31,674.9		0.95	%†		(0.06	)%†		1.00	%†		14	%
9/30/17	$	21.66		0.44			7.01			7.45			(0.34	)		0.00			(0.34	)		0.00	$	28.77		34.88	%	$	31,058.2		0.95	%		1.72	%		1.00	%		41	%
9/30/16	$	21.34		0.36	^(b)		1.04			1.40			(0.50	)		(0.58	)		(1.08	)		0.00	$	21.66		6.66	%	$	23,277.7		1.00	%		1.72	%		1.00	%		44	%
9/30/15	$	25.01		0.46			(2.55	)		(2.09	)		(0.51	)		(1.07	)		(1.58	)		0.00	$	21.34		-8.98	%	$	25,915.2		0.95	%		1.81	%		0.95	%		48	%
9/30/14	$	25.89		0.46	^(b)		(0.61	)		(0.15	)		(0.44	)		(0.29	)		(0.73	)		0.00	$	25.01		-0.64	%	$	29,759.6		0.95	%		1.76	%		0.95	%		39	%^(c)
9/30/13	$	18.79		0.28			7.26			7.54			(0.44	)		0.00			(0.44	)		0.00	$	25.89		40.79	%	$	23,886.0		0.98	%		1.58	%		0.98	%		37	%^(c)
Advisor Class
10/1/17-3/31/18+	$	28.82		0.00	^(a)(b)		(0.12	)		(0.12	)		(0.43	)		(0.48	)		(0.91	)		0.00	$	27.79		-0.45	%	$	2,331.3		0.85	%†		0.02	%†		0.90	%†		14	%
9/30/17^(d)	$	21.96		0.53	^(b)		6.33			6.86			0.00			0.00			0.00			0.00	$	28.82		31.24	%	$	914.3		0.81	%†		2.42	%†		0.86	%†		41	%
Institutional Class
10/1/17-3/31/18+	$	28.82		0.02	^(b)		(0.13	)		(0.11	)		(0.43	)		(0.48	)		(0.91	)		0.00	$	27.80		-0.39	%	$	11,588.3		0.79	%†		0.13	%†		0.84	%†		14	%
9/30/17^(d)	$	21.96		0.46	^(b)		6.40			6.86			0.00			0.00			0.00			0.00	$	28.82		31.24	%	$	7,658.7		0.77	%†		2.06	%†		0.83	%†		41	%
Service Class
10/1/17-3/31/18+	$	28.90		(0.05	)^(b)		(0.13	)		(0.18	)		(0.31	)		(0.48	)		(0.79	)		0.00	$	27.93		-0.65	%	$	520.6		1.25	%†		(0.37	)%†		1.30	%†		14	%
9/30/17	$	21.74		0.46			6.96			7.42			(0.26	)		0.00			(0.26	)		0.00	$	28.90		34.51	%	$	579.7		1.22	%		1.38	%		1.27	%		41	%
9/30/16	$	21.40		0.29	^(b)		1.04			1.33			(0.41	)		(0.58	)		(0.99	)		0.00	$	21.74		6.32	%	$	532.3		1.34	%		1.38	%		1.34	%		44	%
9/30/15	$	25.07		0.36	^(b)		(2.55	)		(2.19	)		(0.41	)		(1.07	)		(1.48	)		0.00	$	21.40		-9.31	%	$	559.1		1.33	%		1.48	%		1.33	%		48	%
9/30/14	$	25.98		0.37	^(b)		(0.63	)		(0.26	)		(0.36	)		(0.29	)		(0.65	)		0.00	$	25.07		-1.04	%	$	538.9		1.33	%		1.40	%		1.33	%		39	%^(c)
9/30/13	$	18.86		0.27	^(b)		7.23			7.50			(0.38	)		0.00			(0.38	)		0.00	$	25.98		40.31	%	$	386.9		1.34	%		1.20	%		1.34	%		37	%^(c)
+	Unaudited.
†	Data has been annualized.
(a)	Amount rounds to less than $0.01 per share.
(b)	Computed using average shares outstanding throughout the period.
(c)	The ratio excludes in-kind transactions.
(d)	Commenced on 11/30/2016.

76 OAKMARK FUNDS

Oakmark.com 77

Oakmark Funds

Financial Highlights

For a share outstanding throughout each period

			Income from Investment Operations:									Less Distributions:																	Ratios/Supplemental Data:
	Net Asset Value, Beginning of Period		Net Investment Income			Net Gain (Loss) on Investments (both realized and unrealized)			Total From Investment Operations			Dividends From Net Investment Income			Distributions From Capital Gains			Total Distributions			Redemption Fees			Net Asset Value, End of Period		Total Return			Net Assets, End of Period ($million)		Ratio of Net Expenses to Average Net Assets			Ratio of Net Investment Income to Average Net Assets			Ratio of Gross Expenses to Average Net Assets			Portfolio Turnover Rate
Oakmark International Small Cap Fund
Investor Class
10/1/17-3/31/18+	$	18.12		0.04	^(a)		(0.38	)		(0.34	)		(0.14	)		(0.50	)		(0.64	)		0.00	^(b)	$	17.14		-1.85	%	$	1,613.1		1.34	%†		0.49	%†		1.34	%†		26	%
9/30/17	$	14.84		0.23	^(a)		3.50			3.73			(0.36	)		(0.09	)		(0.45	)		0.00	^(b)	$	18.12		25.98	%	$	1,835.5		1.36	%		1.40	%		1.36	%		34	%
9/30/16	$	14.63		0.42	^(a)		0.51			0.93			(0.36	)		(0.36	)		(0.72	)		0.00	^(b)	$	14.84		6.66	%	$	2,365.1		1.38	%		2.97	%		1.38	%		38	%
9/30/15	$	16.38		0.19	^(a)		(0.78	)		(0.59	)		(0.26	)		(0.90	)		(1.16	)		0.00	^(b)	$	14.63		-3.70	%	$	2,852.0		1.35	%		1.18	%		1.35	%		46	%
9/30/14	$	17.29		0.17			(0.53	)		(0.36	)		(0.55	)		0.00			(0.55	)		0.00	^(b)	$	16.38		-2.14	%	$	2,910.0		1.31	%		1.07	%		1.31	%		38	%
9/30/13	$	13.06		0.18			4.26			4.44			(0.21	)		0.00			(0.21	)		0.00	^(b)	$	17.29		34.42	%	$	2,254.1		1.35	%		1.23	%		1.35	%		50	%
Advisor Class
10/1/17-3/31/18+	$	18.14		0.05	^(a)		(0.38	)		(0.33	)		(0.18	)		(0.50	)		(0.68	)		0.00	^(b)	$	17.13		-1.80	%	$	423.7		1.29	%†		0.58	%†		1.29	%†		26	%
9/30/17^(c)	$	14.16		0.19	^(a)		3.79			3.98			0.00			0.00			0.00			0.00	^(b)	$	18.14		28.11	%	$	388.5		1.21	%†		1.29	%†		1.21	%†		34	%
Institutional Class
10/1/17-3/31/18+	$	18.15		0.06	^(a)		(0.38	)		(0.32	)		(0.19	)		(0.50	)		(0.69	)		0.00	^(b)	$	17.14		-1.76	%	$	895.5		1.16	%†		0.69	%†		1.16	%†		26	%
9/30/17^(c)	$	14.16		0.21	^(a)		3.78			3.99			0.00			0.00			0.00			0.00	^(b)	$	18.15		28.18	%	$	839.1		1.14	%†		1.47	%†		1.14	%†		34	%
Service Class
10/1/17-3/31/18+	$	18.00		0.02	^(a)		(0.38	)		(0.36	)		(0.11	)		(0.50	)		(0.61	)		0.00	^(b)	$	17.03		-2.02	%	$	1.9		1.65	%†		0.19	%†		1.65	%†		26	%
9/30/17	$	14.75		0.17	^(a)		3.49			3.66			(0.32	)		(0.09	)		(0.41	)		0.00	^(b)	$	18.00		25.56	%	$	2.1		1.66	%		1.04	%		1.66	%		34	%
9/30/16	$	14.53		0.38	^(a)		0.51			0.89			(0.31	)		(0.36	)		(0.67	)		0.00	^(b)	$	14.75		6.39	%	$	1.5		1.69	%		2.69	%		1.69	%		38	%
9/30/15	$	16.26		0.13	^(a)		(0.77	)		(0.64	)		(0.19	)		(0.90	)		(1.09	)		0.00	^(b)	$	14.53		-4.00	%	$	1.9		1.62	%		0.85	%		1.62	%		46	%
9/30/14	$	17.17		0.14			(0.54	)		(0.40	)		(0.51	)		0.00			(0.51	)		0.00	^(b)	$	16.26		-2.42	%	$	3.3		1.62	%		0.70	%		1.62	%		38	%
9/30/13	$	12.98		0.13	^(a)		4.24			4.37			(0.18	)		0.00			(0.18	)		0.00	^(b)	$	17.17		34.04	%	$	3.5		1.64	%		0.90	%		1.64	%		50	%
+	Unaudited.
†	Data has been annualized.
(a)	Computed using average shares outstanding throughout the period.
(b)	Amount rounds to less than $0.01 per share.
(c)	Commenced on 11/30/2016.

78 OAKMARK FUNDS

Oakmark.com 79

The Oakmark Funds Disclosure Regarding The Board Of Trustees' Approval Of Investment Advisory Agreements As Approved October 25, 2017

On an annual basis, the Board of Trustees (the "Board") of the Oakmark Funds (the "Funds"), including a majority of the Trustees who are not "interested persons" of Harris Associates L.P., the Funds' investment adviser (the "Adviser") or the Funds ("Independent Trustees"), considers whether to continue each Fund's investment advisory agreement (each, an "Agreement," and collectively, the "Agreements") with the Adviser. At a meeting held on October 25, 2017, the Board, including all of the Independent Trustees, determined that the continuation of the Agreement for each Fund was in the best interest of the Fund and its shareholders, and approved the continuation of the Agreements through October 31, 2018.

The Board's Committee on Contracts (the "Committee") leads the Board in its evaluation of the Agreements. The Committee is comprised entirely of Independent Trustees, and more than 75% of the Board is comprised of Independent Trustees. The Committee, including the Independent Trustees, requested, received, and reviewed materials provided by the Adviser in response to questions submitted by the Independent Trustees that they believed to be relevant to the continuation of the Agreements with respect to each Fund in light of the legal advice furnished to them by their legal counsel that is experienced in 1940 matters and that is independent of the Adviser ("Independent Counsel") and their own business judgment. During the annual contract review, the Committee and the Independent Trustees met multiple times specifically to review and consider materials related to the proposed continuation of each Agreement and to ensure that the Adviser had time to respond to questions from the Independent Trustees and that the Independent Trustees had time to consider those responses. They also met with senior representatives of the Adviser regarding its personnel, operations and financial condition as they relate to the Funds. In addition, the Board retained Broadridge Financial Solutions, Inc. ("Broadridge"), an independent data provider, to provide performance and expense information for each Fund and for comparable funds. While the Board considered the continuation of the Agreements for all of the Funds at the same meetings, the Board considered each Fund's investment advisory relationship separately.

In connection with its deliberations, the Board also considered a broad range of information relevant to the annual contract review that is provided to the Board (including its various standing committees) at meetings throughout the year, including investment performance reports and related portfolio information for each Fund, as well as periodic reports on, among other matters, pricing and valuation; brokerage and execution; compliance; and shareholder and other services provided by the Adviser and its affiliates.

The Independent Trustees were advised by Independent Counsel throughout the process and they received a memorandum from Independent Counsel discussing the legal standards for their consideration of the proposed continuation of the Agreements. During the course of the year and during their deliberations regarding the annual contract review, the Committee and the Independent Trustees met with Independent Counsel separately from representatives of the Adviser.

Provided below is a description of the Board's contract approval process and the material factors that the Board considered regarding continuation of the Agreements and the compensation to be paid thereunder. The Board's determination to approve the continuation of the Agreements was based on a comprehensive consideration of all information provided to the Board throughout the year and specifically in connection with the annual contract review.

This description is not intended to include all of the factors considered by the Board. The Board members did not identify any particular information or factor that was all-important or controlling, and each Trustee may have attributed different weights to the various factors. The Board focused on the costs and benefits of the Agreements to each Fund and, through the Funds, their shareholders.

Nature, Extent and Quality of Services

The Board's consideration of the nature, extent and quality of the Adviser's services to the Funds took into account the knowledge the Board gained during meetings with the Adviser throughout the year. In addition, the Board considered: the Adviser's long-term history of care and conscientiousness in the management of the Funds; the consistency of its investment approach; the qualifications, experience, and capabilities of, and the resources available to, the Adviser's investment and other personnel responsible for managing the Funds; the Adviser's performance as administrator of the Funds; and the Adviser's compliance program. The Board also reviewed the Adviser's resources and key personnel involved in providing investment management services to the Funds, including the time that investment personnel devoted to each Fund and the investment results produced as a result of the Adviser's in-house research.

The Board considered that, pursuant to each Agreement, the Adviser provides administrative services, including, among other things, oversight of shareholder communications, fund administration and accounting services, regulatory and legal obligation oversight, supervision of fund operations, and Board support. The Board also considered that the Adviser's responsibilities include daily management of investment, operational, enterprise, legal, regulatory, and compliance risks as they relate to the Funds, and considered information regarding the Adviser's processes for managing risk. It also noted the Adviser's oversight of the Funds' various outside service providers. The Board also considered the Adviser's ongoing development of its own infrastructure, including, among other things, its operational and trading capabilities, and its information technology to support the Funds' compliance structure through, among other things, cybersecurity, business continuity planning, and risk management. In addition, the Board noted the positive compliance history of the Adviser.

The Board also considered the general structure of the Adviser's compensation program for portfolio managers, analysts and certain other employees and whether this structure provides appropriate incentives to act in the best interests of the Funds. The Board also considered the ability of the Adviser to attract and retain qualified personnel to service the Funds. The Board also noted the significant personal investments that the Adviser's personnel have made in the Funds, which serve to further align the interests of the Adviser and its personnel with those of the Funds' shareholders.

80 OAKMARK FUNDS

The Board also considered the manner in which the Adviser addressed various matters that arose during the year. These matters may have been the result of developments in the broader fund industry or the regulations governing it, including, for example, the Liquidity Risk Management Program rules, the development of the interfund lending program, and the launch of the new share classes for each Fund. In addition, the Board considered the Adviser's response to recent market conditions and considered the overall performance of the Adviser in this context.

Investment Performance of the Funds

The Board considered each Fund's investment performance over various time periods, and the performance of a group of comparable funds pursuing broadly similar strategies with the same investment classification and/or objective as each Fund (the Fund's "Performance Universe") selected by Broadridge. Because the Committee commenced its review in June, the performance periods considered by the Board were those ended on April 30, 2017. The Board considered one-, three-, five-, and ten-year performance for each Fund. The Board also considered updated performance information at its October meeting at which the Agreements were approved.

Further detail considered by the Board regarding the investment performance of each Fund is set forth below:

Oakmark Fund. The Board considered that the Oakmark Fund outperformed the median annualized returns of its respective Performance Universe during the one-, three-, five-, and ten-year periods ending April 30, 2017.

Oakmark Select Fund. The Board considered that the Oakmark Select Fund outperformed the median annualized returns of its respective Performance Universe during the one-, five- and ten-year periods ending April 30, 2017, but underperformed the median annualized return of its respective Performance Universe during the three-year period ending April 30, 2017.

Oakmark Equity and Income Fund. The Board considered that the Oakmark Equity and Income Fund outperformed the median annualized returns of its respective Performance Universe during the one-, three-, five-, and ten-year periods ending April 30, 2017.

Oakmark Global Fund. The Board considered that the Oakmark Global Fund outperformed the median annualized returns of its respective Performance Universe during the one-, three-, five-, and ten-year periods ending April 30, 2017.

Oakmark Global Select Fund. The Board considered that the Oakmark Global Select Fund outperformed the median annualized returns of its respective Performance Universe during the one-, three-, five-, and ten-year periods ending April 30, 2017.

Oakmark International Fund. The Board considered that the Oakmark International Fund outperformed the median annualized returns of its respective Performance Universe during the one-, three-, five-, and ten-year periods ending April 30, 2017.

Oakmark International Small Cap Fund. The Board considered that the Oakmark International Small Cap Fund outperformed the median annualized return of its respective Performance Universe during the one-year period ending April 30, 2017, but underperformed the median annualized returns of its respective Performance Universe during the three-, five-, and ten-year periods ending April 30, 2017.

In addition to considering each Fund's performance as compared to that of its respective Performance Universe, the Board also considered each Fund's performance as compared to that of its benchmark and other comparative data provided by Broadridge, including each Fund's total return and performance relative to risk. In the case of Oakmark International Small Cap Fund, that had underperformed its Performance Universe over multiple periods, the Board discussed with the Adviser the factors that caused the Fund's underperformance.

Costs of Services Provided and Profits Realized by the Adviser

The Board considered the fee structure for each Fund under the Agreements as compared to the peer group provided by Broadridge. Specifically, using the information provided by Broadridge, the Board considered each Fund's management fee and the management fees for other mutual funds comparable in size, character and investment strategy to each Fund (the "Expense Group"), and considered each Fund's expense ratio and those of the Expense Group.

Further detail considered by the Board regarding the management fee rate and expense ratio of each Fund as of the conclusion of its last semi-annual year ended March 31, 2017 is set forth below:

Oakmark Fund and Oakmark International Small Cap Fund. The Board considered that each Fund's management fee rate (net of fees waived by the Adviser for Oakmark Fund) and total expense ratio are higher than the respective medians of each Fund's Expense Group.

Oakmark Select Fund. The Board considered that the Fund's management fee rate net of fees waived by the Adviser is higher than the median of the Fund's Expense Group. The Board noted, however, that the Fund's total expense ratio, which reflects the total fees paid by an investor, is equal to the median of the Fund's Expense Group.

Oakmark Equity and Income Fund and Oakmark Global Fund. The Board considered that each Fund's management fee rate net of fees waived by the Adviser and total expense ratio are equal to the respective medians of each Fund's Expense Group.

Oakmark Global Select Fund. The Board considered that the Fund's management fee rate net of fees waived by the Adviser is higher than the median of the Fund's Expense Group. The Board noted, however, that the Fund's total expense ratio, which reflects the total fees paid by an investor, is lower than the median of the Fund's Expense Group.

Oakmark International Fund. The Board considered that the Fund's management fee rate net of fees waived by the Adviser and total expense ratio are lower than the respective medians of each Fund's Expense Group. The Board also considered its negotiation with the Adviser, the result of which was the Adviser's agreement to add additional breakpoints to its investment advisory agreement with the Oakmark International Fund to reduce the Adviser's fees at levels that would come into effect as fund assets continue to grow.

The Board also reviewed the Adviser's management fees for comparable institutional separate account clients and subadvised funds (for which the Adviser provides portfolio management services only). The Board considered the appropriateness and reasonableness of any differences between the fees charged to a Fund and any such comparable funds and/or separate accounts, including any breakpoints, and noted the Adviser's explanation that, although in most instances, the fees paid by those other clients were lower

Oakmark.com 81

than the fees paid by the Funds, the differences reflected the Adviser's significantly greater level of responsibilities and broader scope of services regarding the Funds, and the more extensive regulatory obligations and the various risks (e.g., operational, enterprise, legal, regulatory, compliance) associated with managing the Funds.

The Board also noted that each Fund's management fee is a single fee that compensates the Adviser for its services as investment adviser and manager under the Agreements, and further noted that, for comparative purposes, Broadridge aggregated the separate administrative and advisory fees into a single fee for certain of the mutual funds in the Expense Group. The Board also considered the Adviser's agreement to continue the expense limitation agreement for each Fund. In addition, the Board considered the Adviser's agreement to continue the investment advisory fee waiver agreement for Oakmark Fund, Oakmark Select Fund, Oakmark Equity and Income Fund, Oakmark Global Fund, Oakmark Global Select Fund, and Oakmark International Fund.

The Board also considered the Adviser's costs in serving as the Funds' investment adviser and manager, including costs associated with technology, infrastructure, and compliance necessary to manage the Funds. Finally, the Board considered the Adviser's profitability analysis, as well as an Investment Management Industry Profitability Analysis prepared by Broadridge. The Board examined the pre-tax profits realized by the Adviser and its affiliates from their relationship with each Fund, as presented in the profitability analyses, as well as the financial condition of the Adviser. The Board reviewed the Adviser's methodology for allocating costs among the Adviser's lines of business and among the Funds, for purposes of calculating its profitability, and recognized that the methodology may not reflect all of the costs or risks associated with offering and managing a mutual fund complex. The Board also recognized that the Adviser and its affiliates are entitled to earn a reasonable level of profits for services they provide to the each Fund.

Economies of Scale

The Board considered whether each Fund's management fee structure reflects any potential economies of scale that may be realized by the Adviser for the benefit of each Fund's shareholders. The Board reviewed each Agreement, which includes breakpoints that decrease the management fee rate as Fund assets increase. The Board also considered that the Adviser has provided, at no added cost to the Funds, certain additional services that were required by new regulations or regulatory interpretations and/or requested by the Board.

Other Benefits Derived from the Relationship with the Funds

The Board considered fall-out benefits received by the Adviser or its affiliates from their relationship with each Fund. The Board noted that an affiliate of the Adviser serves as the Funds' distributor, without compensation, pursuant to a written agreement the Board evaluates annually. The Board also considered the Adviser's use of a portion of the commissions paid by the Funds on their portfolio brokerage transactions to obtain research products and services benefiting the Funds and/or other clients of the Adviser, and considered the Adviser's assertion that its use of "soft" commission dollars to obtain research products and services was consistent with regulatory requirements.

Conclusion

After full consideration of the above factors, as well as other factors that were instructive in evaluating the Agreements, the Board, including all of the Independent Trustees, concluded that approval of the continuation of each Agreement was in the best interests of the respective Fund and its shareholders. In reaching this determination, the Board considered that the nature, extent and quality of the services provided by the Adviser to each Fund were appropriate and consistent with the Fund's Agreement and that each Fund was likely to continue to benefit from services provided under its Agreement with the Adviser; that the Adviser was delivering performance for each Fund that was consistent with the long-term investment strategies being pursued by the Fund, and that the Fund and its shareholders were benefiting from the Adviser's investment management of the Fund; that the management fees paid by each Fund to the Adviser were reasonable in light of the services provided; that the breakpoints in the fee schedule for each Fund allow shareholders to benefit from potential economies of scale that may be achieved by the Adviser; that the profitability of the Adviser's relationship with each Fund appeared to be reasonable in relation to the services performed; and that the benefits accruing to the Adviser and its affiliates by virtue of their relationship with the Funds were reasonable in light of the costs and risks associated with providing the investment advisory and other services and the benefits accruing to each Fund. The Board's conclusions are based in part on its consideration of materials prepared in connection with the approval or continuance of the Agreements in prior years and on the Board's ongoing regular review of Fund performance and operations throughout the year, in addition to material prepared specifically for the most recent annual review of the Agreements.

82 OAKMARK FUNDS

Disclosures and Endnotes

Reporting to Shareholders. The Funds reduce the number of duplicate prospectuses, annual and semi-annual reports your household receives by sending only one copy of each to those addresses shared by two or more accounts. Call the Funds at 1-800-OAKMARK to request individual copies of these documents. The Funds will begin sending individual copies 30 days after receiving your request.

Before investing in any Oakmark Fund, you should carefully consider the Fund's investment objectives, risks, management fees and other expenses. This and other important information is contained in the Funds' prospectus and a Fund's summary prospectus. Please read the prospectus and summary prospectus carefully before investing. For more information, please visit Oakmark.com or call 1-800-OAKMARK (625-6275).

The discussion of the Funds' investments and investment strategy (including current investment themes, the portfolio managers' research and investment process, and portfolio characteristics) represents the Funds' investments and the views of the portfolio managers and Harris Associates L.P., the Funds' investment adviser, at the time of this report, and are subject to change without notice.

All Oakmark Funds: Investing in value stocks presents the risk that value stocks may fall out of favor with investors and underperform growth stocks during given periods.

Oakmark, Oakmark Equity and Income, Oakmark Global, Oakmark International and Oakmark International Small Cap Funds: The Funds' portfolios tend to be invested in a relatively small number of stocks. As a result, the appreciation or depreciation of any one security held will have a greater impact on the Funds' net asset value than it would if the Funds invest in a larger number of securities. Although that strategy has the potential to generate attractive returns over time, it also increases the Funds' volatility.

Oakmark Select Fund: The stocks of medium-sized companies tend to be more volatile than those of large companies and have underperformed the stocks of small and large companies during some periods.

Because the Oakmark Select and Oakmark Global Select Funds are non-diversified, the performance of each holding will have a greater impact on the Funds' total return, and may make the Fund's returns more volatile than a more diversified fund.

Oakmark Global, Oakmark Global Select, Oakmark International and Oakmark International Small Cap Funds: Investing in foreign securities presents risks which in some ways may be greater than U.S. investments. Those risks include: currency fluctuation; different regulation, accounting standards, trading practices and levels of available information; generally higher transaction costs; and political risks.

The percentages of hedge exposure for each foreign currency are calculated by dividing the market value of all same-currency forward contracts by the market value of the underlying equity exposure to that currency.

The Oakmark Equity and Income Fund invests in medium- and lower-quality debt securities that have higher yield potential but present greater investment and credit risk than higher-quality securities. These risks may result in greater share price volatility.

Oakmark International Small Cap Fund: The stocks of smaller companies often involve more risk than the stocks of larger companies. Stocks of small companies tend to be more volatile and have a smaller public market than stocks of larger companies.

Small companies may have a shorter history of operations than larger companies, may not have as great an ability to raise additional capital and may have a less diversified product line, making them more susceptible to market pressure.

Endnotes:

1. Duke, A. (2018). Thinking in Bets: Making Smarter Decisions When You Don't Have All the Facts. Portfolio.

2. The S&P 500 Total Return Index is a float-adjusted, capitalization-weighted index of 500 U.S. large-capitalization stocks representing all major industries. It is a widely recognized index of broad, U.S. equity market performance. Returns reflect the reinvestment of dividends. This index is unmanaged and investors cannot invest directly in this index.

3. The Dow Jones Industrial Average is a price-weighted measure of 30 U.S. blue-chip companies. The index covers all industries except transportation and utilities. This index is unmanaged and investors cannot invest directly in this index.

4. The Lipper Large-Cap Value Fund Index measures the equal-weighted performance of the 30 largest U.S. large-cap value funds as defined by Lipper. This index is unmanaged and investors cannot invest directly in this index.

5. Portfolio holdings are subject to change without notice and are not intended as recommendations of individual stocks.

6. EPS refers to Earnings Per Share and is calculated by dividing total earnings by the number of shares outstanding.

7. The Price-Earnings Ratio ("P/E") is the most common measure of the expensiveness of a stock.

8. The Lipper Multi-Cap Value Fund Index measures the equal-weighted performance of the 30 largest U.S. multi-cap value funds as defined by Lipper. This index is unmanaged and investors cannot invest directly in this index.

9. The Lipper Balanced Fund Index measures the equal-weighted performance of the 30 largest U.S. balanced funds as defined by Lipper. This index is unmanaged and investors cannot invest directly in this index.

10. The Barclays U.S. Government/Credit Index measures the non-securitized component of the U.S. Aggregate Index. It includes investment grade, U.S. dollar-denominated, fixed-rate Treasuries, government-related and corporate securities. This index is unmanaged and investors cannot invest directly in this index.

11. Jordà, Ò, Knoll, K., Kuvshinov, D., Schularick, M., & Taylor, A. (2017). The Rate of Return on Everything, 1870—2015. The National Bureau of Economic Research. doi:10.3386/w24112.

12. The MSCI World Index (Net) is a free float-adjusted, market capitalization-weighted index that is designed to measure the global equity market performance of developed markets. The index covers approximately 85% of the free float-adjusted market capitalization in each country. This benchmark calculates reinvested dividends net of withholding taxes. This index is unmanaged and investors cannot invest directly in this index.

13. The Lipper Global Fund Index measures the equal-weighted performance of the 30 largest global equity funds as defined

Oakmark.com 83

Disclosures and Endnotes (continued)

by Lipper. This index is unmanaged and investors cannot invest directly in this index.

14. The MSCI World ex U.S. Index (Net) is a free float-adjusted, market capitalization-weighted index that is designed to measure international developed market equity performance, excluding the U.S. The index covers approximately 85% of the free float-adjusted market capitalization in each country. This benchmark calculates reinvested dividends net of withholding taxes. This index is unmanaged and investors cannot invest directly in this index.

15. The MSCI EAFE Index (Net) is designed to represent the performance of large and mid-cap securities across 21 developed markets countries in Europe, Australasia and the Far East, excluding the U.S. and Canada. The index covers approximately 85% of the free float-adjusted market capitalization in each of the 21 countries. This benchmark calculates reinvested dividends net of withholding taxes. This index is unmanaged and investors cannot invest directly in this index.

16. The Lipper International Fund Index measures the equal-weighted performance of the 30 largest international equity funds, as defined by Lipper. This index is unmanaged and investors cannot invest directly in this index.

17. The MSCI World ex U.S. Small Cap Index (Net) is designed to measure performance of small-cap stocks across 22 of 23 developed markets (excluding the U.S.). The index covers approximately 14% of the free float-adjusted market capitalization in each country. This benchmark calculates reinvested dividends net of withholding taxes. This index is unmanaged and investors cannot invest directly in this index.

18. The Lipper International Small-Cap Fund Index measures the equal-weighted performance of the 30 largest international small-cap equity funds as defined by Lipper. This index is unmanaged and investors cannot invest directly in this index.

84 OAKMARK FUNDS

Oakmark Funds

Trustees and Officers

Trustees

Allan J. Reich—Chair

Thomas H. Hayden

Christine M. Maki

Laurence C. Morse, Ph. D.

Mindy M. Posoff

Steven S. Rogers

Kristi L. Rowsell

Peter S. Voss

Officers

Kristi L. Rowsell—President and Principal Executive Officer

Anthony P. Coniaris—Executive Vice President

Kevin G. Grant—Executive Vice President

Judson H. Brooks—Vice President

Megan J. Claucherty—Vice President

Richard J. Gorman—Vice President, Chief Compliance
Officer, Anti-Money Laundering Officer and Assistant Secretary*

Justin D. Hance—Vice President

David G. Herro—Vice President

M. Colin Hudson—Vice President

John J. Kane—Vice President, Principal Financial Officer and
Treasurer

Chris W. Keller—Vice President

Eric Liu—Vice President

Jason E. Long—Vice President

Michael L. Manelli—Vice President

Colin P. McFarland—Chief Compliance Officer and Anti-Money Laundering Officer**

Clyde S. McGregor—Vice President

Ian J. McPheron—Vice President and Chief Legal Officer‡

Thomas W. Murray—Vice President

Michael J. Neary—Vice President

William C. Nygren—Vice President

Vineeta D. Raketich—Vice President

Andrew J. Tedeschi—Vice President and Assistant Treasurer

Zachary D. Weber—Vice President

Edward J. Wojciechowski—Vice President

Rana J. Wright—Vice President, Secretary and Chief Legal Officer†

* Mr. Gorman is no longer an Officer of the Trust as of February 1, 2018.

** Mr. McFarland assumed his duties effective February 1, 2018.

† Ms. Wright assumed her duties effective January 23, 2018.

‡ Mr. McPheron relinquished his duties as Chief Legal Officer effective January 23, 2018.

^ Prior to January 1, 2018, DST Asset Manager Solutions, Inc. was named Boston Financial Data Services.

Other Information

Investment Adviser

Harris Associates L.P.
111 S. Wacker Drive
Chicago, Illinois 60606-4319

Transfer Agent

DST Asset Manager Solutions, Inc.^
Quincy, Massachusetts

Legal Counsel

K&L Gates LLP
Washington, D.C.

Independent Registered Public Accounting Firm

Deloitte & Touche LLP
Chicago, Illinois

Contact Us

Please call 1-800-OAKMARK
(1-800-625-6275)
or 617-483-8327

Website

Oakmark.com

Twitter

@HarrisOakmark

To obtain a prospectus, an application or periodic reports, access our website at Oakmark.com or call 1-800-OAKMARK (625-6275) or (617) 483-8327.

Each Fund will file its complete schedule of portfolio holdings with the Securities and Exchange Commission ("SEC") for the first and third quarters of each fiscal year on Form N-Q. The Funds' Form N-Qs are available on the SEC's website at www.sec.gov. The Funds' Form N-Qs may be reviewed and copied at the SEC's Public Reference Room in Washington, DC, and information on the operation of the Public Reference Room may be obtained by calling 1-800-SEC-0330.

A description of the policies and procedures the Funds use to determine how to vote proxies relating to portfolio securities is available without charge, upon request, by calling toll-free 1-800-625-6275; on the Funds' website at Oakmark.com; and on the SEC's website at www.sec.gov.

No later than August 31 of each year, information regarding how the Adviser, on behalf of the Funds, voted proxies relating to the Funds' portfolio securities for the twelve months ended the preceding June 30 will be available through a link on the Funds' website at Oakmark.com and on the SEC's website at www.sec.gov.

This report is submitted for the general information of the shareholders of the Funds. The report is not authorized for distribution to prospective investors in the Funds unless it is accompanied or preceded by a currently effective prospectus of the Funds.

No sales charge to the shareholder or to the new investor is made in offering the shares of the Funds; however, a shareholder of the Oakmark International Small Cap Fund may incur a 2% redemption fee on an exchange or redemption of shares held for 90 days or less.

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Oakmark.com

SEMIANN (05/18)

Item 2. Code of Ethics.

Not required in this filing.

Item 3. Audit Committee Financial Expert.

Not required in this filing.

Item 4. Principal Accountant Fees and Services.

Not required in this filing.

Item 5. Audit Committee of Listed Registrants.

Not applicable.

Item 6. Investments.

(a) The Schedule of Investments in securities of unaffiliated issuers as of the close of the reporting period is included as part of the semi-annual report to shareholders filed under Item 1 of this Form.

(b) Not applicable.

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies.

Not applicable.

Item 8. Portfolio Managers of Closed-End Management Investment Companies.

Not applicable.

Item 9. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers.

Not applicable.

Item 10. Submission of Matters to a Vote of Security Holders.

During the period covered by this report, no material changes were made to the procedures by which shareholders may recommend nominees to the Registrant’s board of trustees.

Item 11. Controls and Procedures.

(a) Based on an evaluation of the Registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, the “Disclosure Controls”), the Disclosure Controls are effectively designed to ensure that information required to be disclosed by the Registrant in this report is recorded, processed, summarized, and reported within 90 days prior to the filing of this report, including ensuring that information required to be disclosed in this report is accumulated and communicated to the Registrant’s management, including the Registrant’s principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

(b) There were no changes in the Registrant’s internal controls over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) that occurred during the Registrant’s second fiscal quarter of the time period covered by this report that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting.

Item 12. Disclosure of Securities Lending Activities for Closed-End Management Investment Companies.

Not applicable.

Item 13. Exhibits.

(a)(1) A copy of the Code is incorporated by reference to the Registrant’s Form N-CSR, Investment Company Act file number 811-06279 (filed November 25, 2015).

(2) Certifications of Kristi L. Rowsell, Principal Executive Officer, and John J. Kane, Principal Financial Officer, pursuant to Rule 30a-2(a) under the Investment Company Act of 1940 (17 CFR 270.30a-2), attached hereto as Exhibits (a)(2)(i) and (a)(2)(ii), respectively.

(3) Not applicable.

(4) Not applicable.

(b) Certification of Kristi L. Rowsell, Principal Executive Officer, and John J. Kane, Principal Financial Officer, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, attached hereto as Exhibit (b).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Harris Associates Investment Trust

By:	/s/ Kristi L. Rowsell
	Kristi L. Rowsell
	Principal Executive Officer

Date:	May 25, 2018

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

By:	/s/ Kristi L. Rowsell
	Kristi L. Rowsell
	Principal Executive Officer

Date:	May 25, 2018


By:	/s/ John J. Kane
	John J. Kane
	Principal Financial Officer

Date:	May 25, 2018