N-CSRS

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- 01682)
Exact name of registrant as specified in charter:	Putnam Voyager Fund
Address of principal executive offices: One Post Office Square, Boston, Massachusetts 02109
Name and address of agent for service:	Beth S. Mazor, Vice President
	One Post Office Square
	Boston, Massachusetts 02109
Copy to:	John W. Gerstmayr, Esq.
	Ropes & Gray LLP
	One International Place
	Boston, Massachusetts 02110
Registrant’s telephone number, including area code:		(617) 292-1000
Date of fiscal year end: July 31, 2008
Date of reporting period: August 1, 2007 — January 31, 2008

Item 1. Report to Stockholders:

The following is a copy of the report transmitted to stockholders pursuant to Rule 30e-1 under the Investment Company Act of 1940:

What makes Putnam different?

In 1830, Massachusetts Supreme Judicial Court Justice Samuel Putnam established The Prudent Man Rule, a legal foundation for responsible money management.

THE PRUDENT MAN RULE

All that can be required of a trustee to invest is that he shall conduct himself faithfully and exercise a sound discretion. He is to observe how men of prudence, discretion, and intelligence manage their own affairs, not in regard to speculation, but in regard to the permanent disposition of their funds, considering the probable income, as well as the probable safety of the capital to be invested.

A time-honored tradition in money management

Since 1937, our values have been rooted in a profound sense of responsibility for the money entrusted to us.

A prudent approach to investing

We use a research-driven team approach to seek consistent, dependable, superior investment results over time, although there is no guarantee a fund will meet its objectives.

Funds for every investment goal

We offer a broad range of mutual funds and other financial products so investors and their financial representatives can build diversified portfolios.

A commitment to doing what’s right for investors

With a focus on investment performance, below-average expenses, and in-depth information about our funds, we put the interests of investors first and seek to set the standard for integrity and service.

Industry-leading service

We help investors, along with their financial representatives, make informed investment decisions with confidence.

Putnam
Voyager
Fund

1|31|08

Semiannual Report

Message from the Trustees	2
About the fund	4
Performance snapshot	6
Interview with your fund’s Portfolio Leaders	7
Performance in depth	12
Expenses	15
Portfolio turnover	17
Risk	18
Your fund’s management	19
Terms and definitions	21
Trustee approval of management contract	23
Other information for shareholders	28
Financial statements	29
Brokerage commissions	51

Cover photograph: Vineyard, Napa County, California © Charles O’Rear

Message from the Trustees

Dear Fellow Shareholder:

In early 2008, financial markets face clear challenges. What began as a rise in defaults for a limited segment of the U.S. mortgage market has spread across the global financial sector and produced a significant tightening of credit conditions. Forecasts for global growth have been reduced as a result, and markets have reacted by sending stock prices lower. In the United States, the economy weakened sharply in late 2007, raising the chance of a recession this year. Fortunately, policymakers have taken action to stimulate growth: The Federal Reserve Board cut interest rates, and federal lawmakers, working with the president, approved a $168 billion fiscal stimulus plan.

As investors, it is natural to feel discouraged by disappointing short-term results. During these challenging times, it is important to remember the value of a long-term perspective and the counsel of your financial representative. The normal condition of the economy and corporate earnings is one of growth, albeit with occasional interruptions. As in the past, after a period of weakness the economy is likely to regain its momentum and produce the growth and corporate earnings that investors expect.

Starting this month, we have changed the portfolio manager’s commentary in this report to a question-and-answer format. We feel that this makes the information more readable and accessible, and we hope you think so as well.

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Lastly, we note that Putnam Investments celebrated its 70th anniversary in November. From modest beginnings in Boston, Massachusetts, the company has grown into a global asset manager that serves millions of investors worldwide. Although the mutual fund industry has undergone many changes since George Putnam introduced his innovative balanced fund in 1937, Putnam’s guiding principles have not. As we celebrate this 70-year milestone, we look forward to Putnam continuing its long tradition of prudent money management. Thank you for your support of the Putnam funds.

Putnam Voyager Fund: Seeking growth
for investors for over 38 years

In 1969, when Putnam Voyager Fund made its debut, Richard M. Nixon became the 37th U.S. President and Americans landed on the moon for the first time. For the U.S. financial markets, it was the eve of a sluggish decade in which the Dow Jones Industrial Average would gain only 4.8% . Despite Vietnam War tensions and worries over inflation and recession, the fund’s first management team was ready to tap into the long-term growth potential of American businesses.

“The basic qualities underlying the dynamism of our economy are not at issue here,” said the first report to shareholders in 1969. “The future has never been brighter.” The report also discussed the risk of “underestimating the potential growth of companies with strong fundamental trends.”

In the 38 years since its first report was published, the fund has witnessed many more difficult markets, as well as unprecedented stock market growth and extraordinary innovation. One emerging growth trend was noted in the fund’s 1988 annual report: “Several years from now, when you’re leaving home . . . you may find yourself tossing something new into your tote bag or briefcase — your phone. That’s right: the era of truly portable telephones is dawning.”

Today, the fund continues to look for promising growth trends as well as companies across a wide range of sectors that can grow revenues and earnings at a rate that we believe the market underestimates. While much has changed since the fund’s management team wrestled with the challenges of the 1970s, some things have not — including the team’s commitment to prudently manage the money that investors entrust to Putnam.

The fund invests some or all of its assets in small and/or midsize companies. Such investments increase the risk of greater price fluctuations. Stocks with above-average earnings growth may be more volatile, especially if earnings do not continue to grow.

In 1969, the year Putnam
Voyager Fund was
introduced, the Dow Jones
Industrial Average closed
at just over 800. At the
close of the fund’s most
recent fiscal year, the
Dow topped 13000.

Performance snapshot

Putnam Voyager Fund

Current performance may be lower or higher than the quoted past performance, which cannot guarantee future results. Share price, principal value, and return will fluctuate, and you may have a gain or a loss when you sell your shares. Performance of class A shares assumes reinvestment of distributions and does not account for taxes. Fund returns in the bar chart do not reflect a sales charge of 5.75%; had they, returns would have been lower. See pages 12–14 for additional performance information. For a portion of the periods, this fund may have limited expenses, without which returns would have been lower. A 1% short-term trading fee may apply. To obtain the most recent month-end performance, visit www.putnam.com.

* The inception date of the Russell 1000 Growth Index was 12/31/78.

† Returns for the six-month period are not annualized, but cumulative.

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The period in review

Jeff, you and Rob took over as the new portfolio team in late January 2008. Before we discuss any changes you plan to introduce, can you recap the fund’s performance in the first half of its fiscal year, since the end of July 2007?

Sure. Stocks, in general, fell during the period. In mid-2007, conditions that had been helping to fuel price appreciation among many large-company stocks disappeared as the subprime mortgage crisis expanded. Market liquidity, which had helped encourage investors to take risks, evaporated as the credit crunch took hold, the U.S. economic outlook worsened, and volatility increased during the year’s second half.

The fund recorded a decline of 4.64%, trailing its benchmark, the Russell 1000 Growth Index and its Lipper peer group of large-cap growth funds. These relative results were due primarily to an overweight position in financial stocks relative to the benchmark, and to stock

Broad market index and fund performance

This comparison shows your fund’s performance in the context of broad market indexes for the six months ended 1/31/08. See page 6 and pages 12–14 for additional fund performance information. Index descriptions can be found on page 22.

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selection within this sector as well as in the consumer cyclicals sector.

Jeff, why did the subprime mortgage crisis spread to the stock market and have an impact on the fund?

The crisis diminished the outlook for the broader economy and had a direct effect on some of the fund’s financial holdings as a number of financial institutions announced major losses from their subprime mortgage exposures. Consumer cyclicals companies, including retailers, were hurt indirectly. As consumers curtailed spending to make their mortgage payments, in addition to paying higher fuel costs, many consumer companies posted disappointing profits.

In the financials sector, holdings that had a significant negative impact on results were Bear Stearns, Countrywide Financial, and CB Richard Ellis. Bear Stearns is an investment bank that suffered from its exposure to subprime mortgages through hedge funds. Countrywide, the country’s largest mortgage lender, experienced a steep rise in borrower defaults and delinquencies that left it in a weakened capital position. These holdings were sold by the previous portfolio team and are no longer in the fund. CB Richard Ellis is a commercial real estate services firm that has struggled with the weakness in the property market. We are evaluating this holding, along with the rest of the portfolio, to determine whether we will make changes to it.

Top 10 holdings

This table shows the fund’s top 10 holdings and the percentage of the fund’s net assets that represented as of 1/31/08. Also shown is each holding’s market sector and the specific industry within that sector. Holdings will vary over time.

HOLDING (percentage of fund’s net assets)	SECTOR	INDUSTRY
Microsoft Corp. (4.4%)	Technology	Software
Cisco Systems, Inc. (3.9%)	Technology	Communications equipment
Google, Inc. (3.4%)	Technology	Technology services
Goldman Sachs Group, Inc. (The) (2.9%)	Financials	Investment banking/brokerage
Apple Computer, Inc. (2.7%)	Technology	Computers
United Technologies Corp. (2.4%)	Capital goods	Aerospace and defense
Boeing Co. (The) (2.3%)	Capital goods	Aerospace and defense
Intel Corp. (2.3%)	Technology	Electronics
Medtronic, Inc. (2.2%)	Health care	Medical technology
Best Buy Co., Inc. (2.0%)	Consumer cyclicals	Retail

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Within consumer cyclicals, the fund’s large position in McGraw-Hill experienced a setback because of investors’ concerns that its subsidiary, Standard & Poor’s, might be vulnerable to potential legal challenges related to perceived malpractice in its ratings of firms with subprime exposure. Harley-Davidson’s shares lost value due to investors’ worries about potential defaults on loans the company had extended to motorcycle buyers, as well as slower U.S. sales. We are evaluating these holdings.

Rob, what were the areas of strength within the fund?

Several technology and health-care positions somewhat offset the weakness among financials and consumer cyclicals. Apple Computer, despite a downturn late in the period, appreciated thanks to strong sales of its iPhone, various iterations of the iPod, and its Macintosh computers. Another technology holding, Google, remained ahead of competitors with a stunning 60% market share of global searches and increasing investor confidence in the strength of its Internet advertising technology. Oracle benefited from increases in its software licensing agreements.

In the health-care sector, pharmacy benefit manager Express Scripts’ shares posted gains late in the period after the company forecast strong earnings based on increased use of generic and mail-order drugs. Medco Health Solutions also performed well for

Comparison of top sector weightings

This chart shows how the fund’s top weightings have changed over the past six months. Weightings are shown as a percentage of net assets. Holdings will vary over time.

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similar reasons. As with the underperforming holdings, we are also reviewing the fund’s positions in these stocks to determine whether we will make changes.

Rob, as you and Jeff take the helm, could you share some key elements of your strategy and stock selection process?

We will continue to use a combination of fundamental and quantitative research methods in selecting large- and mid-cap growth-style stocks. We focus on risk management by balancing portfolio risks that arise from different factors. If fundamental factors point to a significant risk in a stock, we will be careful to ensure that this is fully recognized by our quantitative analysis, and vice versa. Similarly, we will also balance our analysis of what we call bottom-up risk factors, such as a stock’s valuation and earnings-growth momentum, with top-down factors, which include the macroeconomic environment and specific industry considerations. Our goal is to construct a portfolio that can participate when growth stocks lead markets and be more resilient during episodes of market volatility.

Jeff, what are your thoughts about positioning the fund, given current market conditions and your expectations for the rest of the fiscal year?

It’s clear that the pace of economic growth in the United States is slowing, and there are also signs that growth in the global economy is moderating. The big question is whether the United States will slide into an actual recession, which is formally defined by economists as two back-to-back quarters of contraction in gross domestic product. This question is especially important because historical data indicate strongly that a recession has a much harsher impact on stock prices than a mere economic slowdown. We are inclined to position the fund conservatively through greater exposure to larger-cap companies, and reduced exposure to economically sensitive companies.

Nevertheless, we are not entirely pessimistic. We believe that at this point, late in the economic cycle, large-cap growth stocks are attractive relative to other stocks. Since many growth companies have business models that can generate growth even amid weak economic conditions, these stocks are likely to be prized by investors. Also, among the spectrum of growth stocks, large companies should be less volatile than small companies. Large companies have the advantages of diverse products and services as well as strong distribution capabilities.

We are also encouraged by the actions being taken by policymakers. The Federal Reserve cut rates aggressively during January, and Congress and the president enacted a stimulus package. These actions might not avert a recession, but they clearly have investment implications. The dollar is likely to remain under pressure, because foreign central banks did not join the Fed in

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cutting rates, meaning that U.S. rates are now relatively less attractive. A weak dollar helps large U.S. multinational companies, giving them an advantage versus competitors whose products or services are priced in other currencies. Also, companies that earn profits offshore translate these earnings back to dollars at a more favorable exchange rate.

Although our current investment stance is conservative, we are prepared to look for opportunities. We know that in past cycles some of the strongest gains for equity investors began to accrue to stocks in the middle of a recession, before an economic recovery even started. For growth stocks in particular, this is a key phase of the market cycle, and we aim to be ready for it by carefully analyzing market conditions and looking for signals of impending improvement in earnings growth across a number of sectors.

Thank you, gentlemen.

Please note that the holdings discussed in this report may not have been held by the fund for the entire period. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future.

The views expressed in this report are exclusively those of Putnam Management. They are not meant as investment advice.

The fund invests some or all of its assets in small and/or midsize companies. Such investments increase the risk of fluctuations in the value of your investment.

I N  T H E  N E W S

The subprime mortgage financial crisis started in the United States with the souring of the housing market and became a global financial crisis by July 2007. Lax mortgage lending practices in 2005 and 2006 resulted in rising debt loads for borrowers with weak credit histories. This situation was sustainable when mortgage rates were extremely low and home prices were rising, but when those conditions reversed in 2006 and 2007, delinquencies and foreclosures began to spike. Many homeowners were unable or unwilling to meet financial commitments, and many lenders were left without a means to recoup their losses. As this report was being prepared, the problem continued to take its toll on markets around the world. In past economic cycles, defaults would have been limited, but the repackaging, securitization, and wide-scale distribution of subprime mortgage debt by U.S. investment banks enabled the mortgage crisis to take on glob al proportions.

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Your fund’s performance

This section shows your fund’s performance, price, and distribution information for periods ended January 31, 2008, the end of the first half of its current fiscal year. In accordance with regulatory requirements for mutual funds, we also include performance as of the most recent calendar quarter-end and expense information taken from the fund’s current prospectus. Performance should always be considered in light of a fund’s investment strategy. Data represents past performance. Past performance does not guarantee future results. More recent returns may be less or more than those shown. Investment return and principal value will fluctuate, and you may have a gain or a loss when you sell your shares. Performance information does not reflect any deduction for taxes a shareholder may owe on fund distributions or on the redemption of fund shares. For the most recent month-end performance, please visit the Individual Investors section of www.putnam.com or call Putnam at 1-800-225-1581. Class Y shares are generally only available to corporate and institutional clients and clients in other approved programs. See the Terms and Definitions section in this report for definitions of the share classes offered by your fund.

Fund performance

Total return for periods ended 1/31/08

	Class A		Class B		Class C		Class M		Class R	Class Y
(inception dates)	(4/1/69)		(4/27/92)		(7/26/99)		(12/1/94)		(1/21/03)	(3/31/94)
	NAV	POP	NAV	CDSC	NAV	CDSC	NAV	POP	NAV	NAV
Annual average
(life of fund)	10.98%	10.81%	9.99%	9.99%	10.15%	10.15%	10.28%	10.17%	10.70%	11.08%
10 years	28.91	21.49	19.55	19.55	19.68	19.68	22.63	18.32	25.78	32.16
Annual average	2.57	1.97	1.80	1.80	1.81	1.81	2.06	1.70	2.32	2.83
5 years	43.13	34.89	37.83	35.83	37.84	37.84	39.54	34.65	41.44	44.78
Annual average	7.44	6.17	6.63	6.32	6.63	6.63	6.89	6.13	7.18	7.68
3 years	11.14	4.74	8.71	5.71	8.64	8.64	9.47	5.62	10.31	11.93
Annual average	3.58	1.56	2.82	1.87	2.80	2.80	3.06	1.84	3.32	3.83
1 year	-5.86	-11.29	-6.56	-11.24	-6.54	-7.47	-6.36	-9.65	-6.07	-5.66
6 months	-4.64	-10.12	-4.99	-9.74	-5.00	-5.95	-4.96	-8.29	-4.79	-4.58

Current performance may be lower or higher than the quoted past performance, which cannot guarantee future results. After sales charge returns (public offering price, or POP) for class A and M shares reflect a maximum 5.75% and 3.50% load, respectively, as of 1/2/08. Class B share returns reflect the applicable contingent deferred sales charge (CDSC), which is 5% in the first year, declining to 1% in the sixth year, and is eliminated thereafter. Class C shares reflect a 1% CDSC for the first year and is eliminated thereafter. Class R and Y shares have no initial sales charge or CDSC. Performance for class B, C, M, R, and Y shares before their inception is derived from the historical performance of class A shares, adjusted for the applicable sales charge (or CDSC) and, except for class Y shares, the higher operating expenses for such shares.

For a portion of the periods, this fund may have limited expenses, without which returns would have been lower.

A 1% short-term trading fee may be applied to shares exchanged or sold within 7 days of purchase.

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Comparative index returns

For periods ended 1/31/08

				Lipper Large-Cap
		Russell 1000		Growth Funds
		Growth Index		category average*
Annual average
(life of fund)	—†		9.51%
10 years	30.34%		49.37
Annual average	2.69		3.88
5 years	67.32		62.52
Annual average	10.84		10.12
3 years	22.45		20.94
Annual average	6.98		6.47
1 year	0.51		1.51
6 months	–3.15		–2.04

Index and Lipper results should be compared to fund performance at net asset value.

* Over the 6-month, 1-, 3-, 5-, 10-year, and life-of-fund periods ended 1/31/08, there were 749, 726, 603, 521, 243, and 15 funds, respectively, in this Lipper category.

† The inception date of the Russell 1000 Growth Index was 12/31/78.

Fund price and distribution* information

For the six-month period ended 1/31/08

	Class A		Class B	Class C	Class M		Class R	Class Y
Share value:	NAV	POP†	NAV	NAV	NAV	POP†	NAV	NAV
7/31/07	$18.54	$19.67	$16.03	$17.60	$17.34	$17.97	$18.37	$19.21
1/31/08	17.68	18.76	15.23	16.72	16.48	17.08	17.49	18.33

The classification of distributions, if any, is an estimate. Final distribution information will appear on your year-end tax forms.

* The fund made no distributions during the period.

† Reflects an increase in sales charges that took effect on 1/2/08.

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Fund performance as of most recent calendar quarter

Total return for periods ended 12/31/07

	Class A		Class B		Class C		Class M		Class R	Class Y
(inception dates)	(4/1/69)		(4/27/92)		(7/26/99)		(12/1/94)		(1/21/03)	(3/31/94)
	NAV	POP	NAV	CDSC	NAV	CDSC	NAV	POP	NAV	NAV
Annual average
(life of fund)	11.25%	11.08%	10.26%	10.26%	10.42%	10.42%	10.55%	10.45%	10.97%	11.35%
10 years	40.28	32.23	30.02	30.02	30.20	30.20	33.44	28.76	36.88	43.82
Annual average	3.44	2.83	2.66	2.66	2.67	2.67	2.93	2.56	3.19	3.70
5 years	52.76	43.93	46.99	44.99	46.98	46.98	48.85	43.62	50.94	54.63
Annual average	8.84	7.55	8.01	7.71	8.01	8.01	8.28	7.51	8.58	9.11
3 years	16.90	10.20	14.24	11.24	14.29	14.29	15.16	11.11	15.98	17.73
Annual average	5.34	3.29	4.54	3.61	4.55	4.55	4.82	3.57	5.07	5.59
1 year	5.30	–0.77	4.47	–0.53	4.47	3.47	4.72	1.07	5.01	5.54
6 months	1.10	–4.70	0.67	–4.33	0.72	–0.28	0.84	–2.71	0.95	1.22

Fund’s annual operating expenses

For the fiscal year ended 7/31/07

	Class A	Class B	Class C	Class M	Class R	Class Y
Total annual fund
operating expenses	1.14%	1.89%	1.89%	1.64%	1.39%	0.89%

Expense information in this table is taken from the most recent prospectus, is subject to change, and may differ from that shown in the next section and in the financial highlights of this report. Expenses are shown as a percentage of average net assets.

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Your fund’s expenses

As a mutual fund investor, you pay ongoing expenses, such as management fees, distribution fees (12b-1 fees), and other expenses. In the most recent six-month period, your fund limited these expenses; had it not done so, expenses would have been higher. Using the information below, you can estimate how these expenses affect your investment and compare them with the expenses of other funds. You may also pay one-time transaction expenses, including sales charges (loads) and redemption fees, which are not shown in this section and would have resulted in higher total expenses. For more information, see your fund’s prospectus or talk to your financial representative.

Review your fund’s expenses

The table below shows the expenses you would have paid on a $1,000 investment in Putnam Voyager Fund from August 1, 2007, to January 31, 2008. It also shows how much a $1,000 investment would be worth at the close of the period, assuming actual returns and expenses.

	Class A	Class B	Class C	Class M	Class R	Class Y
Expenses paid per $1,000*	$ 5.79	$ 9.46	$ 9.46	$ 8.24	$ 7.02	$ 4.57
Ending value (after expenses)	$953.60	$950.10	$950.00	$950.40	$952.10	$954.20

* Expenses for each share class are calculated using the fund’s annualized expense ratio for each class, which represents the ongoing expenses as a percentage of average net assets for the six months ended 1/31/08. The expense ratio may differ for each share class (see the last table in this section). Expenses are calculated by multiplying the expense ratio by the average account value for the period; then multiplying the result by the number of days in the period; and then dividing that result by the number of days in the year.

Estimate the expenses you paid

To estimate the ongoing expenses you paid for the six months ended January 31, 2008, use the calculation method below. To find the value of your investment on August 1, 2007, call Putnam at 1-800-225-1581.

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Compare expenses using the SEC’s method

The Securities and Exchange Commission (SEC) has established guidelines to help investors assess fund expenses. Per these guidelines, the table below shows your fund’s expenses based on a $1,000 investment, assuming a hypothetical 5% annualized return. You can use this information to compare the ongoing expenses (but not transaction expenses or total costs) of investing in the fund with those of other funds. All mutual fund shareholder reports will provide this information to help you make this comparison. Please note that you cannot use this information to estimate your actual ending account balance and expenses paid during the period.

	Class A	Class B	Class C	Class M	Class R	Class Y
Expenses paid per $1,000*	$ 5.99	$ 9.78	$ 9.78	$ 8.52	$ 7.25	$ 4.72
Ending value (after expenses)	$1,019.20	$1,015.43	$1,015.43	$1,016.69	$1,017.95	$1,020.46

* Expenses for each share class are calculated using the fund’s annualized expense ratio for each class, which represents the ongoing expenses as a percentage of average net assets for the six months ended 1/31/08. The expense ratio may differ for each share class (see the last table in this section). Expenses are calculated by multiplying the expense ratio by the average account value for the period; then multiplying the result by the number of days in the period; and then dividing that result by the number of days in the year.

Compare expenses using industry averages

You can also compare your fund’s expenses with the average of its peer group, as defined by Lipper, an independent fund-rating agency that ranks funds relative to others that Lipper considers to have similar investment styles or objectives. The expense ratio for each share class shown below indicates how much of your fund’s average net assets have been used to pay ongoing expenses during the period.

	Class A	Class B	Class C	Class M	Class R	Class Y
Your fund’s annualized
expense ratio	1.18%	1.93%	1.93%	1.68%	1.43%	0.93%
Average annualized expense
ratio for Lipper peer group*	1.29%	2.04%	2.04%	1.79%	1.54%	1.04%

* Putnam is committed to keeping fund expenses below the Lipper peer group average expense ratio and will limit fund expenses if they exceed the Lipper average. The Lipper average is a simple average of front-end load funds in the peer group that excludes 12b-1 fees as well as any expense offset and brokerage service arrangements that may reduce fund expenses. To facilitate the comparison in this presentation, Putnam has adjusted the Lipper average to reflect the 12b-1 fees carried by each class of shares other than class Y shares, which do not incur 12b-1 fees. Investors should note that the other funds in the peer group may be significantly smaller or larger than the fund, and that an asset-weighted average would likely be lower than the simple average. Also, the fund and Lipper report expense data at different times and for different periods. The fund’s expense ratio shown here is annualized data for the most rec ent six-month period, while the quarterly updated Lipper average is based on the most recent fiscal year-end data available for the peer group funds as of 12/31/07.

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Your fund’s
portfolio turnover

Putnam funds are actively managed by teams of experts who buy and sell securities based on intensive analysis of companies, industries, economies, and markets. Portfolio turnover is a measure of how often a fund’s managers buy and sell securities for your fund. A portfolio turnover of 100%, for example, means that the managers sold and replaced securities valued at 100% of a fund’s average portfolio value within a given period. Funds with high turnover may be more likely to generate capital gains that must be distributed to shareholders as taxable income. High turnover may also cause a fund to pay more brokerage commissions and other transaction costs, which may detract from performance.

You can use the table below to compare your fund’s turnover with the average turnover for funds in its Lipper category.

Turnover comparisons

Percentage of holdings that change every year

	2007	2006	2005	2004	2003
Putnam Voyager Fund	65%	76%	93%	46%	62%
Lipper Large-Cap Growth Funds
category average	92%	90%	96%	92%	102%

Turnover data for the fund is calculated based on the fund’s fiscal-year period, which ends on July 31. Turnover data for the fund’s Lipper category is calculated based on the average of the turnover of each fund in the category for its fiscal year ended during the indicated year. Fiscal years vary across funds in the Lipper category, which may limit the comparability of the fund’s portfolio turnover rate to the Lipper average. Comparative data for 2007 is based on information available as of 12/31/07.

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Your fund’s risk

This risk comparison is designed to help you understand how your fund compares with other funds. The comparison utilizes a risk measure developed by Morningstar, an independent fund-rating agency. This risk measure is referred to as the fund’s Morningstar Risk.

Your fund’s Morningstar^® Risk

Your fund’s Morningstar Risk is shown alongside that of the average fund in its Morningstar category. The risk bar broadens the comparison by translating the fund’s Morningstar Risk into a percentile, which is based on the fund’s ranking among all funds rated by Morningstar as of December 31, 2007. A higher Morningstar Risk generally indicates that a fund’s monthly returns have varied more widely.

Morningstar determines a fund’s Morningstar Risk by assessing variations in the fund’s monthly returns — with an emphasis on downside variations — over a 3-year period, if available. Those measures are weighted and averaged to produce the fund’s Morningstar Risk. The information shown is provided for the fund’s class A shares only; information for other classes may vary. Morningstar Risk is based on historical data and does not indicate future results. Morningstar does not purport to measure the risk associated with a current investment in a fund, either on an absolute basis or on a relative basis. Low Morningstar Risk does not mean that you cannot lose money on an investment in a fund. Copyright 2007 Morningstar, Inc. All Rights Reserved. The information contained herein (1) is proprietary to Morningstar and/or its content providers; (2) may not be copied or distributed; and (3) is not warranted to be accurate, complete, or timely. Neither Morningstar nor its content providers are responsible for any damages or losses arising from any use of this information.

18

Your fund’s management

Your fund is managed by the members of the Putnam Global Asset Allocation Team. Jeffrey Knight and Robert Schoen are Portfolio Leaders of your fund. The Portfolio Leaders coordinate the team’s management of the fund.

For a complete listing of the members of the Putnam Global Asset Allocation Team, including those who are not Portfolio Leaders or Portfolio Members of your fund, visit Putnam’s Individual Investors Web site at www.putnam.com.

Investment team fund ownership

The table below shows how much the fund’s current Portfolio Leaders have invested in the fund and in all Putnam mutual funds (in dollar ranges). Information shown is as of January 31, 2008, and January 31, 2007.

N/A indicates the individual was not a Portfolio Leader or Portfolio Member as of 1/31/07.

Trustee and Putnam employee fund ownership

As of January 31, 2008, all of the Trustees of the Putnam funds owned fund shares. The table below shows the approximate value of investments in the fund and all Putnam funds as of that date by the Trustees and Putnam employees. These amounts include investments by the Trustees’ and employees’ immediate family members and investments through retirement and deferred compensation plans.

		Total assets in
	Assets in the fund	all Putnam funds
Trustees	$ 711,000	$ 90,000,000
Putnam employees	$13,265,000	$669,000,000

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Other Putnam funds managed by the Portfolio Leaders

Jeffrey Knight is also a Portfolio Leader of Putnam Global Asset Allocation Fund (Growth, Balanced, and Conservative Portfolios), Putnam Income Strategies Fund, and Putnam Growth Opportunities Fund, and a Portfolio Member of The George Putnam Fund of Boston and Putnam Discovery Growth Fund.

Robert Schoen is also a Portfolio Leader of Putnam Growth Opportunities Fund, and a Portfolio Member of Putnam Global Asset Allocation Fund (Growth, Balanced, and Conservative Portfolios), Putnam Income Strategies Fund, and Putnam Discovery Growth Fund.

Jeffrey Knight and Robert Schoen may also manage other accounts and variable trust funds advised by Putnam Management or an affiliate.

Changes in your fund’s Portfolio Leaders

During the reporting period ended January 31, 2008, Jeffrey Knight and Robert Schoen became Portfolio Leaders of your fund. These changes followed the departure of Portfolio Leaders Robert Ginsberg and Kelly Morgan from your fund’s management team.

20

Terms and definitions

Important terms

Total return shows how the value of the fund’s shares changed over time, assuming you held the shares through the entire period and reinvested all distributions in the fund.

Net asset value (NAV) is the price, or value, of one share of a mutual fund, without a sales charge. NAVs fluctuate with market conditions. NAV is calculated by dividing the net assets of each class of shares by the number of outstanding shares in the class.

Public offering price (POP) is the price of a mutual fund share plus the maximum sales charge levied at the time of purchase. POP performance figures shown here assume the 5.75% maximum sales charge for class A shares and 3.50% for class M shares.

Contingent deferred sales charge (CDSC) is generally a charge applied at the time of the redemption of class B or C shares and assumes redemption at the end of the period. Your fund’s class B CDSC declines from a 5% maximum during the first year to 1% during the sixth year. After the sixth year, the CDSC no longer applies. The CDSC for class C shares is 1% for one year after purchase.

Share classes

Class A shares are generally subject to an initial sales charge and no CDSC (except on certain redemptions of shares bought without an initial sales charge).

Class B shares are not subject to an initial sales charge. They may be subject to a CDSC.

Class C shares are not subject to an initial sales charge and are subject to a CDSC only if the shares are redeemed during the first year.

Class M shares have a lower initial sales charge and a higher 12b-1 fee than class A shares and no CDSC (except on certain redemptions of shares bought without an initial sales charge).

Class R shares are not subject to an initial sales charge or CDSC and are available only to certain defined contribution plans.

Class Y shares are not subject to an initial sales charge or CDSC, and carry no 12b-1 fee. They are generally only available to corporate and institutional clients and clients in other approved programs.

21

Comparative indexes

Lehman Aggregate Bond Index is an unmanaged index of U.S. investment-grade fixed-income securities.

Merrill Lynch 91-Day Treasury Bill Index is an unmanaged index that seeks to measure the performance of U.S. Treasury bills available in the marketplace.

Russell 1000 Growth Index is an unmanaged index of those companies in the large-cap Russell 1000 Index chosen for their growth orientation.

S&P 500 Index is an unmanaged index of common stock performance.

Indexes assume reinvestment of all distributions and do not account for fees. Securities and performance of a fund and an index will differ. You cannot invest directly in an index.

Lipper is a third-party industry-ranking entity that ranks mutual funds. Its rankings do not reflect sales charges. Lipper rankings are based on total return at net asset value relative to other funds that have similar current investment styles or objectives as determined by Lipper. Lipper may change a fund’s category assignment at its discretion. Lipper category averages reflect performance trends for funds within a category.

22

Trustee approval of
management contract

General conclusions

The Board of Trustees of the Putnam funds oversees the management of each fund and, as required by law, determines annually whether to approve the continuance of your fund’s management contract with Putnam Investment Management (“Putnam Management”). In this regard, the Board of Trustees, with the assistance of its Contract Committee consisting solely of Trustees who are not “interested persons” (as such term is defined in the Investment Company Act of 1940, as amended) of the Putnam funds (the “Independent Trustees”), requests and evaluates all information it deems reasonably necessary under the circumstances. Over the course of several months ending in June 2007, the Contract Committee met several times to consider the information provided by Putnam Management and other information developed with the assistance of the Board’s independent counsel and independent staff. The Contract Committee reviewed and discussed key aspects of this information with all of the Independent Trustees. The Contract Committee recommended, and the Independent Trustees approved, the continuance of your fund’s management contract, effective July 1, 2007.

In addition, in anticipation of the sale of Putnam Investments to Great-West Lifeco, at a series of meetings ending in March 2007, the Trustees reviewed and approved new management and distribution arrangements to take effect upon the change of control. Shareholders of all funds approved the management contracts in May 2007, and the change of control transaction was completed on August 3, 2007. Upon the change of control, the management contracts that were approved by the Trustees in June 2007 automatically terminated and were replaced by new contracts that had been approved by shareholders. In connection with their review for the June 2007 continuance of the Putnam funds’ management contracts, the Trustees did not identify any facts or circumstances that would alter the substance of the conclusions and recommendations they made in their review of the contracts to take effect upon the change of control.

The Independent Trustees’ approval was based on the following conclusions:

• That the fee schedule in effect for your fund represented reasonable compensation in light of the nature and quality of the services being provided to the fund, the fees paid by competitive funds and the costs incurred by Putnam Management in providing such services, and

• That this fee schedule represented an appropriate sharing between fund shareholders and Putnam Management of such economies of scale as may exist in the management of the fund at current asset levels.

These conclusions were based on a comprehensive consideration of all information provided to the Trustees and were not the result of any single factor. Some of the factors that figured particularly in the Trustees’ deliberations and how the Trustees considered these factors are described below, although individual Trustees may have evaluated the information presented differently, giving different weights to various factors. It is also important to recognize that the fee arrangements for your fund and the other Putnam funds are the result of many years of review and discussion between the Independent Trustees and Putnam Management, that

23

certain aspects of such arrangements may receive greater scrutiny in some years than others, and that the Trustees’ conclusions may be based, in part, on their consideration of these same arrangements in prior years.

Management fee schedules and categories; total expenses

The Trustees reviewed the management fee schedules in effect for all Putnam funds, including fee levels and breakpoints, and the assignment of funds to particular fee categories. In reviewing fees and expenses, the Trustees generally focused their attention on material changes in circumstances — for example, changes in a fund’s size or investment style, changes in Putnam Management’s operating costs or responsibilities, or changes in competitive practices in the mutual fund industry — that suggest that consideration of fee changes might be warranted. The Trustees concluded that the circumstances did not warrant changes to the management fee structure of your fund, which had been carefully developed over the years, re-examined on many occasions and adjusted where appropriate. The Trustees focused on two areas of particular interest, as discussed further below:

• Competitiveness. The Trustees reviewed comparative fee and expense information for competitive funds, which indicated that, in a custom peer group of competitive funds selected by Lipper Inc., your fund ranked in the 17th percentile in management fees and in the 28th percentile in total expenses (less any applicable 12b-1 fees) as of December 31, 2006 (the first percentile being the least expensive funds and the 100th percentile being the most expensive funds). (Because the fund’s custom peer group is smaller than the fund’s broad Lipper Inc. peer group, this expense information may differ from the Lipper peer expense information found elsewhere in this report.) The Trustees noted that expense ratios for a number of Putnam funds, which show the percentage of fund assets used to pay for management and administrative services, distribution (12b-1) fees and other expenses, h ad been increasing recently as a result of declining net assets and the natural operation of fee breakpoints.

The Trustees noted that the expense ratio increases described above were currently being controlled by expense limitations implemented in January 2004 and which Putnam Management had committed to maintain at least through 2007. In anticipation of the change of control of Putnam Investments, the Trustees requested, and received a commitment from Putnam Management and Great-West Lifeco, to extend this program through at least June 30, 2009. These expense limitations give effect to a commitment by Putnam Management that the expense ratio of each open-end fund would be no higher than the average expense ratio of the competitive funds included in the fund’s relevant Lipper universe (exclusive of any applicable 12b-1 charges in each case). The Trustees observed that this commitment to limit fund expenses has served shareholders well since its inception.

In order to ensure that the expenses of the Putnam funds continue to meet evolving competitive standards, the Trustees requested, and Putnam Management agreed, to extend for the twelve months beginning July 1, 2007, an additional expense limitation for certain funds at an

24

amount equal to the average expense ratio (exclusive of 12b-1 charges) of a custom peer group of competitive funds selected by Lipper to correspond to the size of the fund. This additional expense limitation will be applied to those open-end funds that had above-average expense ratios (exclusive of 12b-1 charges) based on the custom peer group data for the period ended December 31, 2006. This additional expense limitation will not be applied to your fund because it had a below-average expense ratio relative to its custom peer group.

• Economies of scale. Your fund currently has the benefit of breakpoints in its management fee that provide shareholders with significant economies of scale, which means that the effective management fee rate of a fund (as a percentage of fund assets) declines as a fund grows in size and crosses specified asset thresholds. Conversely, as a fund shrinks in size — as has been the case for many Putnam funds in recent years — these breakpoints result in increasing fee levels. In recent years, the Trustees have examined the operation of the existing breakpoint structure during periods of both growth and decline in asset levels. The Trustees concluded that the fee schedules in effect for the funds represented an appropriate sharing of economies of scale at current asset levels. In reaching this conclusion, the Trustees considered the Contract Committee’s stated intent to con tinue to work with Putnam Management to plan for an eventual resumption in the growth of assets, and to consider the potential economies that might be produced under various growth assumptions.

In connection with their review of the management fees and total expenses of the Putnam funds, the Trustees also reviewed the costs of the services to be provided and profits to be realized by Putnam Management and its affiliates from the relationship with the funds. This information included trends in revenues, expenses and profitability of Putnam Management and its affiliates relating to the investment management and distribution services provided to the funds. In this regard, the Trustees also reviewed an analysis of Putnam Management’s revenues, expenses and profitability with respect to the funds’ management contracts, allocated on a fund-by-fund basis.

Investment performance

The quality of the investment process provided by Putnam Management represented a major factor in the Trustees’ evaluation of the quality of services provided by Putnam Management under your fund’s management contract. The Trustees were assisted in their review of the Putnam funds’ investment process and performance by the work of the Investment Process Committee of the Trustees and the Investment Oversight Committees of the Trustees, which had met on a regular monthly basis with the funds’ portfolio teams throughout the year. The Trustees concluded that Putnam Management generally provides a high-quality investment process — as measured by the experience and skills of the individuals assigned to the management of fund portfolios, the resources made available to such personnel, and in general the ability of Putnam Management to attract and retain high-quality personnel — but also recognized that this does not guarantee favorable investm ent results for every fund in every time period. The Trustees considered the investment performance of each fund over multiple time periods

25

and considered information comparing each fund’s performance with various benchmarks and with the performance of competitive funds.

The Trustees noted the satisfactory investment performance of many Putnam funds. They also noted the disappointing investment performance of certain funds in recent years and discussed with senior management of Putnam Management the factors contributing to such underperformance and actions being taken to improve performance. The Trustees recognized that, in recent years, Putnam Management has made significant changes in its investment personnel and processes and in the fund product line to address areas of underperformance. In particular, they noted the important contributions of Putnam Management’s leadership in attracting, retaining and supporting high-quality investment professionals and in systematically implementing an investment process that seeks to merge the best features of fundamental and quantitative analysis. The Trustees indicated their intention to continue to monitor performance trends to assess the effectiveness of these changes and to evaluate whether additional changes to address areas of underperformance are warranted.

In the case of your fund, the Trustees considered that your fund’s class A share cumulative total return performance at net asset value was in the following percentiles of its Lipper Inc. peer group (Lipper Large-Cap Growth Funds) for the one-, three- and five-year periods ended March 31, 2007 (the first percentile being the best-performing funds and the 100th percentile being the worst-performing funds):

One-year period	Three-year period	Five-year period
70th	80th	78th

(Because of the passage of time, these performance results may differ from the performance results for more recent periods shown elsewhere in this report. Over the one-, three- and five-year periods ended March 31, 2007, there were 722, 613, and 503 funds, respectively, in your fund’s Lipper peer group.* Past performance is no guarantee of future returns.)

The Trustees noted the disappointing performance for your fund for the three- and five-year periods ended March 31, 2007. In this regard, the Trustees considered that Putnam Management had made changes to the fund’s investment team in February 2005 that it believed would both clarify and strengthen the fund’s strategy for growth investing and position the fund well for a turn-around in performance.

As a general matter, the Trustees concluded that cooperative efforts between the Trustees and Putnam Management represent the most effective way to address investment performance problems. The Trustees noted that investors in the Putnam funds have, in effect, placed their trust

* The percentile rankings for your fund’s class A share annualized total return performance in the Lipper Large-Cap Growth Funds category for the one-, five-, and ten-year periods ended December 31, 2007, were 91%, 91%, and 76%, respectively. Over the one-, five-, and ten-year periods ended December 31, 2007, the fund ranked 657th out of 723, 466th out of 515, and 182nd out of 239 funds, respectively. Note that this more recent information was not available when the Trustees approved the continuance of your fund’s management contract.

26

in the Putnam organization, under the oversight of the funds’ Trustees, to make appropriate decisions regarding the management of the funds. Based on the responsiveness of Putnam Management in the recent past to Trustee concerns about investment performance, the Trustees concluded that it is preferable to seek change within Putnam Management to address performance shortcomings. In the Trustees’ view, the alternative of terminating a management contract and engaging a new investment adviser for an underperforming fund would entail significant disruptions and would not provide any greater assurance of improved investment performance.

Brokerage and soft-dollar allocations; other benefits

The Trustees considered various potential benefits that Putnam Management may receive in connection with the services it provides under the management contract with your fund. These include benefits related to brokerage and soft-dollar allocations, whereby a portion of the commissions paid by a fund for brokerage may be used to acquire research services that may be useful to Putnam Management in managing the assets of the fund and of other clients. The Trustees indicated their continued intent to monitor the potential benefits associated with the allocation of fund brokerage to ensure that the principle of seeking “best price and execution” remains paramount in the portfolio trading process.

The Trustees’ annual review of your fund’s management contract also included the review of its distributor’s contract and distribution plan with Putnam Retail Management Limited Partnership and the custodian agreement and investor servicing agreement with Putnam Fiduciary Trust Company (“PFTC”), each of which provides benefits to affiliates of Putnam Management. In the case of the custodian agreement, the Trustees considered that, effective January 1, 2007, the Putnam funds had engaged State Street Bank and Trust Company as custodian and began to transition the responsibility for providing custody services away from PFTC.

Comparison of retail and institutional fee schedules

The information examined by the Trustees as part of their annual contract review has included for many years information regarding fees charged by Putnam Management and its affiliates to institutional clients such as defined benefit pension plans, college endowments, etc. This information included comparison of such fees with fees charged to the funds, as well as a detailed assessment of the differences in the services provided to these two types of clients. The Trustees observed, in this regard, that the differences in fee rates between institutional clients and the funds are by no means uniform when examined by individual asset sectors, suggesting that differences in the pricing of investment management services to these types of clients reflect to a substantial degree historical competitive forces operating in separate market places. The Trustees considered the fact that fee rates across all asset sectors are higher on average for funds than for institutional cli ents, as well as the differences between the services that Putnam Management provides to the Putnam funds and those that it provides to institutional clients of the firm, but did not rely on such comparisons to any significant extent in concluding that the management fees paid by your fund are reasonable.

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Other information
for shareholders

Important notice regarding delivery of shareholder documents

In accordance with SEC regulations, Putnam sends a single copy of annual and semiannual shareholder reports, prospectuses, and proxy statements to Putnam shareholders who share the same address, unless a shareholder requests otherwise. If you prefer to receive your own copy of these documents, please call Putnam at 1-800-225-1581, and Putnam will begin sending individual copies within 30 days.

Proxy voting

Putnam is committed to managing our mutual funds in the best interests of our shareholders. The Putnam funds’ proxy voting guidelines and procedures, as well as information regarding how your fund voted proxies relating to portfolio securities during the 12-month period ended June 30, 2007, are available on the Putnam Individual Investor Web site, www.putnam.com/individual, and on the SEC’s Web site, www.sec.gov. If you have questions about finding forms on the SEC’s Web site, you may call the SEC at 1-800-SEC-0330. You may also obtain the Putnam funds’ proxy voting guidelines and procedures at no charge by calling Putnam’s Shareholder Services at 1-800-225-1581.

Fund portfolio holdings

The fund will file a complete schedule of its portfolio holdings with the SEC for the first and third quarters of each fiscal year on Form N-Q. Shareholders may obtain the fund’s Forms N-Q on the SEC’s Web site at www.sec.gov. In addition, the fund’s Forms N-Q may be reviewed and copied at the SEC’s Public Reference Room in Washington, D.C. You may call the SEC at 1-800-SEC-0330 for information about the SEC’s Web site or the operation of the Public Reference Room.

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Financial statements

A guide to financial statements

These sections of the report, as well as the accompanying Notes, constitute the fund’s financial statements.

The fund’s portfolio lists all the fund’s investments and their values as of the last day of the reporting period. Holdings are organized by asset type and industry sector, country, or state to show areas of concentration and diversification.

Statement of assets and liabilities shows how the fund’s net assets and share price are determined. All investment and noninvestment assets are added together. Any unpaid expenses and other liabilities are subtracted from this total. The result is divided by the number of shares to determine the net asset value per share, which is calculated separately for each class of shares. (For funds with preferred shares, the amount subtracted from total assets includes the liquidation preference of preferred shares.)

Statement of operations shows the fund’s net investment gain or loss. This is done by first adding up all the fund’s earnings — from dividends and interest income — and subtracting its operating expenses to determine net investment income (or loss). Then, any net gain or loss the fund realized on the sales of its holdings — as well as any unrealized gains or losses over the period — is added to or subtracted from the net investment result to determine the fund’s net gain or loss for the fiscal period.

Statement of changes in net assets shows how the fund’s net assets were affected by the fund’s net investment gain or loss, by distributions to shareholders, and by changes in the number of the fund’s shares. It lists distributions and their sources (net investment income or realized capital gains) over the current reporting period and the most recent fiscal year-end. The distributions listed here may not match the sources listed in the Statement of operations because the distributions are determined on a tax basis and may be paid in a different period from the one in which they were earned. Dividend sources are estimated at the time of declaration. Actual results may vary. Any non-taxable return of capital cannot be determined until final tax calculations are completed after the end of the fund’s fiscal year.

Financial highlights provide an overview of the fund’s investment results, per-share distributions, expense ratios, net investment income ratios, and portfolio turnover in one summary table, reflecting the five most recent reporting periods. In a semiannual report, the highlight table also includes the current reporting period.

29

The fund’s portfolio 1/31/08 (Unaudited)

COMMON STOCKS (97.2%)*
	Shares		Value
Advertising and Marketing Services (1.9%)
Omnicom Group, Inc.	2,248,900	$	102,032,593
Aerospace and Defense (8.7%)
Alliant Techsystems, Inc. † (S)	332,700		35,216,295
Boeing Co. (The)	1,523,800		126,749,684
General Dynamics Corp. (S)	1,017,200		85,912,712
L-3 Communications Holdings, Inc.	905,100		100,312,233
United Technologies Corp.	1,772,400		130,111,884
			478,302,808
Automotive (0.6%)
Harley-Davidson, Inc. (S)	756,996		30,718,898
Banking (0.7%)
Wells Fargo & Co.	1,094,300		37,217,143
Beverage (0.2%)
Pepsi Bottling Group, Inc. (The)	394,114		13,734,873
Building Materials (0.8%)
Sherwin-Williams Co. (The) (S)	725,300		41,494,413
Chemicals (0.9%)
Potash Corp. of Saskatchewan (Canada)	364,000		51,280,320
Commercial and Consumer Services (1.8%)
Dun & Bradstreet Corp. (The) (S)	627,211		57,690,868
Equifax, Inc.	1,054,800		39,122,532
			96,813,400
Communications Equipment (3.9%)
Cisco Systems, Inc. †	8,644,000		211,778,000
Computers (3.1%)
Apple Computer, Inc. † (S) #	1,099,000		148,760,640
Research in Motion, Ltd. (Canada) † (S)	243,600		22,869,168
			171,629,808
Conglomerates (1.9%)
Danaher Corp. (S)	1,418,200		105,584,990
Consumer Finance (2.5%)
American Express Co.	1,306,800		64,451,376
Mastercard, Inc. Class A	342,600		70,918,200
			135,369,576
Consumer Goods (1.4%)
Procter & Gamble Co. (The)	1,155,600		76,211,820

30

COMMON STOCKS (97.2%)* continued
	Shares		Value
Electronics (4.3%)
Amphenol Corp. Class A (S)	1,265,900	$	50,560,046
Intel Corp. (S)	5,857,800		124,185,360
Texas Instruments, Inc. (S)	1,956,300		60,508,359
			235,253,765
Financial (1.2%)
CME Group, Inc.	50,863		31,479,111
Moody’s Corp.	907,300		31,746,427
			63,225,538
Health Care Services (7.3%)
Aetna, Inc.	1,367,900		72,854,354
Express Scripts, Inc. †	1,203,300		81,210,717
Medco Health Solutions, Inc. †	1,633,400		81,800,672
UnitedHealth Group, Inc.	1,990,600		101,202,104
WellPoint, Inc. †	835,000		65,297,000
			402,364,847
Insurance (2.3%)
American International Group, Inc.	1,837,700		101,367,532
Berkshire Hathaway, Inc. Class B †	5,657		25,739,350
			127,106,882
Investment Banking/Brokerage (5.7%)
BlackRock, Inc.	176,500		39,024,150
Blackstone Group LP (The)	1,917,900		35,193,465
Franklin Resources, Inc.	459,300		47,872,839
Goldman Sachs Group, Inc. (The)	786,400		157,885,528
T. Rowe Price Group, Inc.	691,600		34,988,044
			314,964,026
Lodging/Tourism (1.5%)
Las Vegas Sands Corp. † (S)	391,500		34,322,805
Wyndham Worldwide Corp.	2,057,800		48,481,768
			82,804,573
Machinery (3.1%)
Caterpillar, Inc.	1,025,800		72,975,412
Joy Global, Inc.	621,300		39,172,965
Parker-Hannifin Corp. (S)	397,500		26,874,975
Terex Corp. † (S)	509,600		29,944,096
			168,967,448
Manufacturing (0.5%)
Mettler-Toledo International, Inc. †	292,900		29,084,970
Media (1.3%)
Walt Disney Co. (The) (S)	2,363,100		70,727,583

31

COMMON STOCKS (97.2%)* continued
	Shares		Value
Medical Technology (4.2%)
Becton, Dickinson and Co.	738,800	$	63,928,364
Medtronic, Inc.	2,550,900		118,795,413
St. Jude Medical, Inc. †	1,157,400		46,886,274
			229,610,051
Metals (0.9%)
Freeport-McMoRan Copper & Gold, Inc. Class B (S)	524,600		46,705,138
Oil & Gas (4.9%)
ConocoPhillips	460,900		37,019,488
Devon Energy Corp.	746,700		63,454,566
EOG Resources, Inc. (S)	585,400		51,222,500
Occidental Petroleum Corp.	632,600		42,934,562
Suncor Energy, Inc. (Canada) (S)	311,300		29,255,974
Valero Energy Corp.	789,900		46,754,181
			270,641,271
Pharmaceuticals (1.9%)
Johnson & Johnson	1,657,900		104,878,754
Publishing (1.7%)
McGraw-Hill Cos., Inc. (The) (S)	2,163,000		92,489,880
Real Estate (1.1%)
CB Richard Ellis Group, Inc. Class A †	3,062,104		59,435,439
Restaurants (1.2%)
Yum! Brands, Inc. (S)	1,940,700		66,294,312
Retail (8.5%)
Best Buy Co., Inc. (S)	2,201,900		107,474,739
Costco Wholesale Corp. (S)	766,900		52,103,186
CVS Caremark Corp. (S)	2,114,500		82,613,515
Lowe’s Cos., Inc. (S)	2,571,500		67,990,460
Priceline.com, Inc. † (S)	120,300		13,054,956
Ross Stores, Inc. (S)	1,337,600		38,991,040
Staples, Inc. (S)	4,353,900		104,232,366
			466,460,262
Software (8.9%)
Activision, Inc. †	572,900		14,820,923
Adobe Systems, Inc. †	2,382,100		83,206,753
Autodesk, Inc. † (S)	780,300		32,109,345
Microsoft Corp.	7,467,300		243,433,979
Oracle Corp. † (S)	5,109,200		104,994,060
VMware, Inc. Class A † (S)	166,400		9,426,560
			487,991,620
Technology Services (7.1%)
Accenture, Ltd. Class A (Bermuda) (S)	2,033,800		70,410,156
Cognizant Technology Solutions Corp. †	1,835,800		51,218,820

32

COMMON STOCKS (97.2%)* continued
		Shares		Value
Technology Services continued
eBay, Inc. †		3,118,200	$	83,848,398
Google, Inc. Class A †		326,800		184,413,240
				389,890,614
Textiles (0.3%)
NIKE, Inc. Class B (S)		287,900		17,780,704
Trucks & Parts (0.5%)
WABCO Holdings, Inc.		666,766		26,864,002
Waste Management (0.4%)
Republic Services, Inc.		786,400		23,592,000
Total common stocks (cost $5,195,019,753)			$	5,329,302,321
SHORT-TERM INVESTMENTS (14.7%)*
	Principal amount/shares			Value
Short-term investments held as collateral for loaned securities
with yields ranging from 2.60% to 5.25% and due dates
ranging from February 1, 2008 to March 24, 2008 (d)	$	708,798,202	$	707,776,146
Interest in $150,000,000 joint tri-party repurchase agreement
dated January 31, 2008 with Bank of America Securities, LLC
due February 1, 2008 maturity value of $37,203,079 for an
effective yield of 2.98% (collateralized by various mortgage
backed securities with coupon rates ranging from zero% to 8.46%
and due dates ranging from February 15, 2008 to October 1, 2066,
valued at $150,012,417)		37,200,000		37,200,000
Three Pillars Funding Corp. for an effective yield of 3.35%,
February 4, 2008		20,014,000		20,008,413
Putnam Prime Money Market Fund (e)		39,000,000		39,000,000
Total short-term investments (cost $803,984,559)			$	803,984,559
TOTAL INVESTMENTS
Total investments (cost $5,999,004,312)			$	6,133,286,880

* Percentages indicated are based on net assets of $5,485,044,073.

† Non-income-producing security.

# A portion of this security was pledged and segregated with the custodian to cover margin requirements for futures contracts at January 31, 2008.

(d) See Note 1 to the financial statements.

(e) See Note 5 to the financial statements regarding investments in Putnam Prime Money Market Fund.

(S) Securities on loan, in part or in entirety, at January 31, 2008.

33

FUTURES CONTRACTS OUTSTANDING at 1/31/08 (Unaudited)

	Number of		Expiration	Unrealized
	contracts	Value	date	appreciation
NASDAQ 100 Index E-Mini (Long)	726	$ 26,829,330	Mar-08	$ 292,816
S&P 500 Index (Long)	345	118,990,500	Mar-08	1,487,136
Total				$1,779,952

The accompanying notes are an integral part of these financial statements.

34

Statement of assets and liabilities 1/31/08 (Unaudited)

ASSETS
Investment in securities, at value, including $689,900,989 of securities on loan (Note 1):
Unaffiliated issuers (identified cost $5,960,004,312)	$ 6,094,286,880
Affiliated issuers (identified cost $39,000,000) (Note 5)	39,000,000
Cash	11,027,679
Dividends, interest and other receivables	6,647,099
Receivable for shares of the fund sold	3,024,236
Receivable for securities sold	89,499,260
Receivable from Manager (Note 2)	73,658
Receivable for variation margin (Note 1)	1,748,949
Total assets	6,245,307,761
LIABILITIES
Payable for securities purchased	24,423,736
Payable for shares of the fund repurchased	14,861,309
Payable for compensation of Manager (Notes 2 and 5)	8,027,137
Payable for investor servicing fees (Note 2)	1,813,152
Payable for Trustee compensation and expenses (Note 2)	1,154,529
Payable for administrative services (Note 2)	6,750
Payable for distribution fees (Note 2)	1,346,657
Collateral on securities loaned, at value (Note 1)	707,776,146
Other accrued expenses	854,272
Total liabilities	760,263,688
Net assets	$ 5,485,044,073
REPRESENTED BY
Paid-in capital (Unlimited shares authorized) (Notes 1 and 4)	$ 7,721,554,886
Accumulated net investment loss (Note 1)	(8,836,890)
Accumulated net realized loss on investments
and foreign currency transactions (Note 1)	(2,363,736,443)
Net unrealized appreciation of investments
and assets and liabilities in foreign currencies	136,062,520
Total — Representing net assets applicable to capital shares outstanding	$ 5,485,044,073

(Continued on next page)

35

Statement of assets and liabilities (Continued)

COMPUTATION OF NET ASSET VALUE AND OFFERING PRICE
Net asset value and redemption price per class A share
($3,725,267,376 divided by 210,737,163 shares)	$17.68
Offering price per class A share
(100/94.25 of $17.68)*	$18.76
Net asset value and offering price per class B share
($542,231,809 divided by 35,613,618 shares)**	$15.23
Net asset value and offering price per class C share
($50,892,099 divided by 3,044,025 shares)**	$16.72
Net asset value and redemption price per class M share
($39,699,947 divided by 2,408,399 shares)	$16.48
Offering price per class M share
(100/96.50 of $16.48)*	$17.08
Net asset value, offering price and redemption price per class R share
($2,845,730 divided by 162,747 shares)	$17.49
Net asset value, offering price and redemption price per class Y share
($1,124,107,112 divided by 61,312,076 shares)	$18.33

* On single retail sales of less than $50,000. On sales of $50,000 or more the offering price is reduced.

** Redemption price per share is equal to net asset value less any applicable contingent deferred sales charge.

The accompanying notes are an integral part of these financial statements.

36

Statement of operations Six months ended 1/31/08 (Unaudited)

INVESTMENT INCOME
Dividends (net of foreign tax of $13,587)	$ 27,746,127
Interest (including interest income of $511,025
from investments in affiliated issuers) (Note 5)	1,006,410
Securities lending	996,424
Total investment income	29,748,961
EXPENSES
Compensation of Manager (Note 2)	16,912,556
Investor servicing fees (Note 2)	11,921,357
Custodian fees (Note 2)	80,201
Trustee compensation and expenses (Note 2)	94,234
Administrative services (Note 2)	40,495
Distribution fees — Class A (Note 2)	5,514,966
Distribution fees — Class B (Note 2)	3,312,294
Distribution fees — Class C (Note 2)	286,126
Distribution fees — Class M (Note 2)	172,729
Distribution fees — Class R (Note 2)	6,460
Other	862,888
Non-recurring costs (Notes 2 and 6)	11,342
Costs assumed by Manager (Notes 2 and 6)	(11,342)
Fees waived and reimbursed by Manager (Note 5)	(8,226)
Total expenses	39,196,080
Expense reduction (Note 2)	(610,229)
Net expenses	38,585,851
Net investment loss	(8,836,890)
Net realized gain on investments (including $33,553,149
from redemptions in kind) (Notes 1 and 3)	25,902,223
Net realized loss on futures contracts (Note 1)	(1,226,591)
Net realized gain on foreign currency transactions (Note 1)	568
Net unrealized depreciation of assets and liabilities
in foreign currencies during the period	(376)
Net unrealized depreciation of investments
and futures contracts during the period	(266,457,158)
Net loss on investments	(241,781,334)
Net decrease in net assets resulting from operations	$(250,618,224)

The accompanying notes are an integral part of these financial statements.

37

Statement of changes in net assets

DECREASE IN NET ASSETS
	Six months ended	Year ended
	1/31/08*	7/31/07
Operations:
Net investment loss	$ (8,836,890)	$ (30,682,294)
Net realized gain on investments
and foreign currency transactions	24,676,200	672,662,626
Net unrealized appreciation (depreciation) of investments
and assets and liabilities in foreign currencies	(266,457,534)	514,485,960
Net increase (decrease) in net assets resulting
from operations	(250,618,224)	1,156,466,292
Redemption fees (Note 1)	1,886	11,749
Decrease from capital share transactions (Note 4)	(1,188,875,873)	(2,564,259,891)
Total decrease in net assets	(1,439,492,211)	(1,407,781,850)
NET ASSETS
Beginning of period	6,924,536,284	8,332,318,134
End of period (including accumulated net investment
loss of $8,836,890 and $—, respectively)	$ 5,485,044,073	$ 6,924,536,284

* Unaudited

The accompanying notes are an integral part of these financial statements.

38

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39

Financial highlights (For a common share outstanding throughout the period)

INVESTMENT OPERATIONS:					LESS DISTRIBUTIONS:						RATIOS AND SUPPLEMENTAL DATA:
			Net							Total			Ratio of net
	Net asset		realized and	Total	From				Net asset	return	Net	Ratio of	investment
	value,	Net	unrealized	from	net	From			value,	at net	assets,	expenses to	income (loss)	Portfolio
	beginning	investment	gain (loss) on	investment	investment	return of	Total	Redemption	end	asset	end of period	average net	to average	turnover
Period ended	of period	income (loss)(a)	investments	operations	income	capital	distributions	fees	of period	value (%)(b)	(in thousands)	assets (%)(c)	net assets (%)	(%)
CLASS A
January 31, 2008**	$18.54	(.02)(d)	(.84)	(.86)	—	—	—	—(e)	$17.68	(4.64)*	$3,725,267	.59*(d)	(.12)*(d)	18.28*
July 31, 2007	16.20	(.06)(d)	2.40	2.34	—	—	—	—(e)	18.54	14.44	4,790,506	1.14(d)	(.33)(d)	65.48
July 31, 2006	17.16	(.04)(d,h)	(.79)	(.83)	(.13)	—	(.13)	—(e)	16.20	(4.93)(h)	5,528,893	1.04(d,h)	(.23)(d,h)	75.88
July 31, 2005	15.13	.09(d,f,g)	1.94	2.03	—	—	—	—(e)	17.16	13.42(g)	7,410,811	1.08(d)	.55(d,f,g)	93.29
July 31, 2004	14.45	(.01)(d)	.69	.68	—	—	—	—(e)	15.13	4.71	8,710,655	1.04(d)	(.04)(d)	45.73
July 31, 2003	13.42	.01	1.02	1.03	—(e)	—(e)	—(e)	—	14.45	7.68	11,909,405	1.02	.10	62.09
CLASS B
January 31, 2008**	$16.03	(.08)(d)	(.72)	(.80)	—	—	—	—(e)	$15.23	(4.99)*	$542,232	.97*(d)	(.50)*(d)	18.28*
July 31, 2007	14.12	(.17)(d)	2.08	1.91	—	—	—	—(e)	16.03	13.53	726,751	1.89(d)	(1.08)(d)	65.48
July 31, 2006	14.95	(.15)(d,h)	(.68)	(.83)	—	—	—	—(e)	14.12	(5.55)(h)	1,089,121	1.79(d,h)	(.98)(d,h)	75.88
July 31, 2005	13.28	(.03)(d,f,g)	1.70	1.67	—	—	—	—(e)	14.95	12.58(g)	1,875,616	1.83(d)	(.19)(d,f,g)	93.29
July 31, 2004	12.78	(.11)(d)	.61	.50	—	—	—	—(e)	13.28	3.91	2,343,329	1.79(d)	(.80)(d)	45.73
July 31, 2003	11.96	(.08)	.90	.82	—	—	—	—	12.78	6.86	2,815,586	1.77	(.65)	62.09
CLASS C
January 31, 2008**	$17.60	(.09)(d)	(.79)	(.88)	—	—	—	—(e)	$16.72	(5.00)*	$50,892	.97*(d)	(.50)*(d)	18.28*
July 31, 2007	15.50	(.19)(d)	2.29	2.10	—	—	—	—(e)	17.60	13.55	59,248	1.89(d)	(1.08)(d)	65.48
July 31, 2006	16.42	(.16)(d,h)	(.76)	(.92)	—	—	—	—(e)	15.50	(5.60)(h)	72,213	1.79(d,h)	(.98)(d,h)	75.88
July 31, 2005	14.58	(.03)(d,f,g)	1.87	1.84	—	—	—	—(e)	16.42	12.62(g)	96,509	1.83(d)	(.20)(d,f,g)	93.29
July 31, 2004	14.03	(.12)(d)	.67	.55	—	—	—	—(e)	14.58	3.92	116,854	1.79(d)	(.79)(d)	45.73
July 31, 2003	13.13	(.08)	.98	.90	—	—	—	—	14.03	6.85	157,925	1.77	(.65)	62.09
CLASS M
January 31, 2008**	$17.34	(.07)(d)	(.79)	(.86)	—	—	—	—(e)	$16.48	(4.96)*	$39,700	.84*(d)	(.37)*(d)	18.28*
July 31, 2007	15.22	(.14)(d)	2.26	2.12	—	—	—	—(e)	17.34	13.93	47,801	1.64(d)	(.83)(d)	65.48
July 31, 2006	16.12	(.12)(d,h)	(.75)	(.87)	(.03)	—	(.03)	—(e)	15.22	(5.42)(h)	60,394	1.54(d,h)	(.73)(d,h)	75.88
July 31, 2005	14.28	.01(d,f,g)	1.83	1.84	—	—	—	—(e)	16.12	12.89(g)	95,640	1.58(d)	.07(d,f,g)	93.29
July 31, 2004	13.70	(.08)(d)	.66	.58	—	—	—	—(e)	14.28	4.23	125,904	1.54(d)	(.54)(d)	45.73
July 31, 2003	12.79	(.05)	.96	.91	—	—	—	—	13.70	7.12	307,046	1.52	(.40)	62.09
CLASS R
January 31, 2008**	$18.37	(.05)(d)	(.83)	(.88)	—	—	—	—(e)	$17.49	(4.79)*	$2,846	.72*(d)	(.25)*(d)	18.28*
July 31, 2007	16.09	(.10)(d)	2.38	2.28	—	—	—	—(e)	18.37	14.17	2,243	1.39(d)	(.58)(d)	65.48
July 31, 2006	17.06	(.09)(d,h)	(.77)	(.86)	(.11)	—	(.11)	—(e)	16.09	(5.12)(h)	1,740	1.29(d,h)	(.50)(d,h)	75.88
July 31, 2005	15.08	.02(d,f,g)	1.96	1.98	—	—	—	—(e)	17.06	13.13(g)	734	1.33(d)	.14(d,f,g)	93.29
July 31, 2004	14.44	(.05)(d)	.69	.64	—	—	—	—(e)	15.08	4.43	253	1.29(d)	(.34)(d)	45.73
July 31, 2003†	12.98	(.01)	1.47	1.46	—	—	—	—	14.44	11.25*	13	.67*	(.08)*	62.09
CLASS Y
January 31, 2008**	$19.21	—(d,e)	(.88)	(.88)	—	—	—	—(e)	$18.33	(4.58)*	$1,124,107	.47*(d)	.01*(d)	18.28*
July 31, 2007	16.74	(.02)(d)	2.49	2.47	—	—	—	—(e)	19.21	14.76	1,297,987	.89(d)	(.08)(d)	65.48
July 31, 2006	17.73	—(d,e,h)	(.82)	(.82)	(.17)	—	(.17)	—(e)	16.74	(4.69)(h)	1,579,957	.79(d,h)	.02(d,h)	75.88
July 31, 2005	15.59	.13(d,f,g)	2.01	2.14	—	—	—	—(e)	17.73	13.73(g)	2,018,139	.83(d)	.80(d,f,g)	93.29
July 31, 2004	14.85	.03(d)	.71	.74	—	—	—	—(e)	15.59	4.98	2,807,926	.79(d)	.20(d)	45.73
July 31, 2003	13.80	.05	1.04	1.09	(.02)	(.02)	(.04)	—	14.85	7.92	2,945,482	.77	.34	62.09

See notes to financial highlights at the end of this section.

The accompanying notes are an integral part of these financial statements.

40  41 

Financial highlights (Continued)

* Not annualized

** Unaudited.

† For the period January 21, 2003 (commencement of operations) to July 31, 2003.

(a) Per share net investment income (loss) has been determined on the basis of the weighted average number of shares outstanding during the period.

(b) Total return assumes dividend reinvestment and does not reflect the effect of sales charges.

(c) Includes amounts paid through expense offset and brokerage service arrangements (Note 2).

(d) Reflects waivers of certain fund expenses in connection with investments in Putnam Prime Money Market Fund in effect during the period. As a result of such waivers, the expenses of each class reflect a reduction of the following amounts (Note 5):

	Percentage
	of average
	net assets
January 31, 2008	<0.01%
July 31, 2007	<0.01
July 31, 2006	<0.01
July 31, 2005	<0.01
July 31, 2004	<0.01

(e) Amount represents less than $0.01 per share.

(f) Reflects a special dividend received by the fund which amounted to the following amounts:

		Percentage
		of average
	Per share	net assets
Class A	$0.08	0.51%
Class B	0.07	0.52
Class C	0.08	0.52
Class M	0.08	0.53
Class R	0.06	0.37
Class Y	0.08	0.52

(g) Reflects a non-recurring accrual related to Putnam Management’s settlement with the SEC regarding brokerage allocation practices, which amounted to the following amounts:

		Percentage
		of average
	Per share	net assets
Class A	$0.01	0.08%
Class B	0.01	0.08
Class C	0.01	0.08
Class M	0.01	0.07
Class R	0.02	0.10
Class Y	0.01	0.07

(h) Reflects a non-recurring reimbursement from Putnam Investments relating to the calculation of certain amounts paid by the fund to Putnam in previous years for transfer agent services, which amounted to $0.01 per share and 0.06% of average net assets for the period ended July 31, 2006.

The accompanying notes are an integral part of these financial statements.

42

Notes to financial statements 1/31/08 (Unaudited)

Note 1: Significant accounting policies

Putnam Voyager Fund (the “fund”), a Massachusetts business trust, is registered under the Investment Company Act of 1940, as amended, as a diversified, open-end management investment company. The fund invests mainly in common stocks of U.S. companies, with a focus on growth stocks.

The fund offers class A, class B, class C, class M, class R and class Y shares. Class A and class M shares are sold with a maximum front-end sales charge of 5.75% and 3.50%, respectively, and generally do not pay a contingent deferred sales charge. Class B shares, which convert to class A shares after approximately eight years, do not pay a front-end sales charge and are subject to a contingent deferred sales charge, if those shares are redeemed within six years of purchase. Class C shares have a one-year 1.00% contingent deferred sales charge and do not convert to class A shares. Class R shares, which are offered to qualified employee-benefit plans, are sold at net asset value. The expenses for class A, class B, class C, class M and class R shares may differ based on the distribution fee of each class, which is identified in Note 2. Class Y shares, which are sold at net asset value, are generally subject to the same expenses as class A, class B, class C, class M an d class R shares, but do not bear a distribution fee. Class Y shares are generally only available to corporate and institutional clients and clients in other approved programs.

A 1.00% redemption fee may apply on any shares that are redeemed (either by selling or exchanging into another fund) within 7 days of purchase. The redemption fee is accounted for as an addition to paid-in-capital.

Investment income, realized and unrealized gains and losses and expenses of the fund are borne pro-rata based on the relative net assets of each class to the total net assets of the fund, except that each class bears expenses unique to that class (including the distribution fees applicable to such classes). Each class votes as a class only with respect to its own distribution plan or other matters on which a class vote is required by law or determined by the Trustees. If the fund were liquidated, shares of each class would receive their pro-rata share of the net assets of the fund. In addition, the Trustees declare separate dividends on each class of shares.

In the normal course of business, the fund enters into contracts that may include agreements to indemnify another party under given circumstances. The fund’s maximum exposure under these arrangements is unknown as this would involve future claims that may be, but have not yet been, made against the fund. However, the fund expects the risk of material loss to be remote.

The following is a summary of significant accounting policies consistently followed by the fund in the preparation of its financial statements. The preparation of financial statements is in conformity with accounting principles generally accepted in the United States of America and requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities in the financial statements and the reported amounts of increases and decreases in net assets from operations during the reporting period. Actual results could differ from those estimates.

A) Security valuation Investments for which market quotations are readily available are valued at the last reported sales price on their principal exchange, or official closing price for certain markets. If no sales are reported — as in the case of some securities traded over-the-counter — a security is valued at its last reported bid price. Many securities markets and exchanges outside the U.S. close prior to the close of the New York Stock Exchange and therefore the closing prices for securities in such markets or on such exchanges may not fully reflect events that occur after such close but before the close of the New York Stock Exchange. Accordingly, on certain days, the fund will fair value foreign equity securities taking into account multiple factors, including movements in the U.S. securities markets. The number of days on which fair value prices will be used will depend on market activity and it is

43

possible that fair value prices will be used by the fund to a significant extent. Securities quoted in foreign currencies, if any, are translated into U.S. dollars at the current exchange rate. Certain investments, including certain restricted securities and derivatives, are also valued at fair value following procedures approved by the Trustees. Such valuations and procedures are reviewed periodically by the Trustees. The fair value of securities is generally determined as the amount that the fund could reasonably expect to realize from an orderly disposition of such securities over a reasonable period of time. By its nature, a fair value price is a good faith estimate of the value of a security at a given point in time and does not reflect an actual market price, which may be different by a material amount.

B) Joint trading account Pursuant to an exemptive order from the Securities and Exchange Commission (the “SEC”), the fund may transfer uninvested cash balances, including cash collateral received under security lending arrangements, into a joint trading account along with the cash of other registered investment companies and certain other accounts managed by Putnam Investment Management, LLC (“Putnam Management”), the fund’s manager, a wholly-owned subsidiary of Putnam, LLC. These balances may be invested in issues of short-term investments having maturities of up to 397 days for collateral received under security lending arrangements and up to 90 days for other cash investments.

C) Repurchase agreements The fund, or any joint trading account, through its custodian, receives delivery of the underlying securities, the market value of which at the time of purchase is required to be in an amount at least equal to the resale price, including accrued interest. Collateral for certain tri-party repurchase agreements is held at the counterparty’s custodian in a segregated account for the benefit of the fund and the counterparty. Putnam Management is responsible for determining that the value of these underlying securities is at all times at least equal to the resale price, including accrued interest.

D) Security transactions and related investment income Security transactions are recorded on the trade date (the date the order to buy or sell is executed). Gains or losses on securities sold are determined on the identified cost basis.

Interest income is recorded on the accrual basis. Dividend income, net of applicable withholding taxes, is recognized on the ex-dividend date except that certain dividends from foreign securities, if any, are recognized as soon as the fund is informed of the ex-dividend date. Non-cash dividends, if any, are recorded at the fair market value of the securities received. Dividends representing a return of capital or capital gains, if any, are reflected as a reduction of cost and/or as a realized gain.

E) Foreign currency translation The accounting records of the fund are maintained in U.S. dollars. The market value of foreign securities, currency holdings, and other assets and liabilities is recorded in the books and records of the fund after translation to U.S. dollars based on the exchange rates on that day. The cost of each security is determined using historical exchange rates. Income and withholding taxes are translated at prevailing exchange rates when earned or incurred. The fund does not isolate that portion of realized or unrealized gains or losses resulting from changes in the foreign exchange rate on investments from fluctuations arising from changes in the market prices of the securities. Such gains and losses are included with the net realized and unrealized gain or loss on investments. Net realized gains and losses on foreign currency transactions represent net realized exchange gains or losses on closed fo rward currency contracts, disposition of foreign currencies, currency gains and losses realized between the trade and settlement dates on securities transactions and the difference between the amount of investment income and foreign withholding taxes recorded on the fund’s books and the U.S. dollar equivalent amounts actually received or paid. Net unrealized appreciation and depreciation of assets and liabilities in foreign currencies arise from changes in the value of open forward currency

44

contracts and assets and liabilities other than investments at the period end, resulting from changes in the exchange rate. Investments in foreign securities involve certain risks, including those related to economic instability, unfavorable political developments, and currency fluctuations, not present with domestic investments.

F) Futures and options contracts The fund may use futures and options contracts to hedge against changes in the values of securities the fund owns, owned or expects to purchase, or for other investment purposes. The fund may also write options on swaps or securities it owns or in which it may invest to increase its current returns.

The potential risk to the fund is that the change in value of futures and options contracts may not correspond to the change in value of the hedged instruments. In addition, losses may arise from changes in the value of the underlying instruments, if there is an illiquid secondary market for the contracts, or if the counterparty to the contract is unable to perform. Risks may exceed amounts recognized on the Statement of assets and liabilities. When the contract is closed, the fund records a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed. Realized gains and losses on purchased options are included in realized gains and losses on investment securities. If a written call option is exercised, the premium originally received is recorded as an addition to sales proceeds. If a written put option is exercised, the premium originally received is recorded as a reduction to the cost of investments.

Futures contracts are valued at the quoted daily settlement prices established by the exchange on which they trade. The fund and the broker agree to exchange an amount of cash equal to the daily fluctuation in the value of the futures contract. Such receipts or payments are known as “variation margin.” Exchange traded options are valued at the last sale price or, if no sales are reported, the last bid price for purchased options and the last ask price for written options. Options traded over-the-counter are valued using prices supplied by dealers. Futures and written option contracts outstanding at period end, if any, are listed after the fund’s portfolio.

G) Security lending The fund may lend securities, through its agents, to qualified borrowers in order to earn additional income. The loans are collateralized by cash and/or securities in an amount at least equal to the market value of the securities loaned. The market value of securities loaned is determined daily and any additional required collateral is allocated to the fund on the next business day. The risk of borrower default will be borne by the fund’s agents; the fund will bear the risk of loss with respect to the investment of the cash collateral. Income from securities lending is included in investment income on the Statement of operations. At January 31, 2008, the value of securities loaned amounted to $689,900,989. The fund received cash collateral of $707,776,146 which is pooled with collateral of other Putnam funds into 51 issues of short-term investments.

H) Federal taxes It is the policy of the fund to distribute all of its taxable income within the prescribed time and otherwise comply with the provisions of the Internal Revenue Code of 1986 (the “Code”), as amended, applicable to regulated investment companies. It is also the intention of the fund to distribute an amount sufficient to avoid imposition of any excise tax under Section 4982 of the Code, as amended. Therefore, no provision has been made for federal taxes on income, capital gains or unrealized appreciation on securities held nor for excise tax on income and capital gains.

At July 31, 2007, the fund had a capital loss carryover of $2,387,786,512 available to the extent allowed by the Code to offset future net capital gain, if any. This capital loss carryover will expire on July 31, 2011.

The aggregate identified cost on a tax basis is $5,999,630,443, resulting in gross unrealized appreciation and depreciation of $ 531,158,406

45

and $397,501,969, respectively, or net unrealized appreciation of $133,656,437.

I) Distributions to shareholders Distributions to shareholders from net investment income are recorded by the fund on the ex-dividend date. Distributions from capital gains, if any, are recorded on the ex-dividend date and paid at least annually. The amount and character of income and gains to be distributed are determined in accordance with income tax regulations, which may differ from generally accepted accounting principles. Dividend sources are estimated at the time of declaration. Actual results may vary. Any non-taxable return of capital cannot be determined until final tax calculations are completed after the end of the fund’s fiscal year. Reclassifications are made to the fund’s capital accounts to reflect income and gains available for distribution (or available capital loss carryovers) under income tax regulations.

Note 2: Management fee, administrative services and other transactions

Putnam Management is paid for management and investment advisory services quarterly based on the average net assets of the fund. Such fee is based on the following annual rates: 0.70% of the first $500 million of average net assets, 0.60% of the next $500 million, 0.55% of the next $500 million, 0.50% of the next $5 billion, 0.475% of the next $5 billion, 0.455% of the next $5 billion, 0.44% of the next $5 billion, 0.43% of the next $5 billion, 0.42% of the next $5 billion, 0.41% of the next $5 billion, 0.40% of the next $5 billion, 0.39% of the next $5 billion, 0.38% of the next $8.5 billion and 0.37% thereafter.

Putnam Management has agreed to waive fees and reimburse expenses of the fund through June 30, 2009 to the extent necessary to ensure that the fund’s expenses do not exceed the simple average of the expenses of all front-end load funds viewed by Lipper, Inc. as having the same investment classification or objective as the fund. The expense reimbursement is based on a comparison of the fund’s expenses with the average annualized operating expenses of the funds in its Lipper peer group for each calendar quarter during the fund’s last fiscal year, excluding 12b-1 fees and without giving effect to any expense offset and brokerage service arrangements that may reduce fund expenses. For the period ended January 31, 2008, Putnam Management did not waive any of its management fee from the fund.

For the period ended January 31, 2008, Putnam Management has assumed $11,342 of legal, shareholder servicing and communication, audit and Trustee fees incurred by the fund in connection with certain legal and regulatory matters (including those described in Note 6).

The fund reimburses Putnam Management an allocated amount for the compensation and related expenses of certain officers of the fund and their staff who provide administrative services to the fund. The aggregate amount of all such reimbursements is determined annually by the Trustees.

Custodial services for the fund’s assets were provided by Putnam Fiduciary Trust Company (“PFTC”), an affiliate of Putnam Management, and by State Street Bank and Trust Company (“State Street”). Custody fees are based on the fund’s asset level, the number of its security holdings, transaction volumes and with respect to PFTC, certain fees related to the transition of assets to State Street. Putnam Investor Services, a division of PFTC, provided investor servicing agent functions to the fund. Putnam Investor Services received fees for investor servicing, subject to certain limitations, based on the number of shareholder accounts in the fund and the level of defined contribution plan assets in the fund. During the period ended January 31, 2008, the fund incurred $11,978,842 for custody and investor servicing agent functions provided by PFTC.

The fund has entered into arrangements with PFTC and State Street whereby PFTC’s and State Street’s fees are reduced by credits allowed on cash balances. The fund also reduced expenses

46

through brokerage service arrangements. For the six months ended January 31, 2008, the fund’s expenses were reduced by $610,229 under these arrangements.

Each independent Trustee of the fund receives an annual Trustee fee, of which $1,545, as a quarterly retainer, has been allocated to the fund, and an additional fee for each Trustees meeting attended. Trustees receive additional fees for attendance at certain committee meetings and industry seminars and for certain compliance-related matters. Trustees also are reimbursed for expenses they incur relating to their services as Trustees.

The fund has adopted a Trustee Fee Deferral Plan (the “Deferral Plan”) which allows the Trustees to defer the receipt of all or a portion of Trustees fees payable on or after July 1, 1995. The deferred fees remain invested in certain Putnam funds until distribution in accordance with the Deferral Plan.

The fund has adopted an unfunded noncontributory defined benefit pension plan (the “Pension Plan”) covering all Trustees of the fund who have served as a Trustee for at least five years and were first elected prior to 2004. Benefits under the Pension Plan are equal to 50% of the Trustee’s average annual attendance and retainer fees for the three years ended December 31, 2005. The retirement benefit is payable during a Trustee’s lifetime, beginning the year following retirement, for the number of years of service through December 31, 2006. Pension expense for the fund is included in Trustee compensation and expenses in the Statement of operations. Accrued pension liability is included in Payable for Trustee compensation and expenses in the Statement of assets and liabilities. The Trustees have terminated the Pension Plan with respect to any Trustee first elected after 2003.

The fund has adopted distribution plans (the “Plans”) with respect to its class A, class B, class C, class M and class R shares pursuant to Rule 12b-1 under the Investment Company Act of 1940. The purpose of the Plans is to compensate Putnam Retail Management, a wholly-owned subsidiary of Putnam, LLC and Putnam Retail Management GP, Inc., for services provided and expenses incurred in distributing shares of the fund. The Plans provide for payments by the fund to Putnam Retail Management at an annual rate of up to 0.35%, 1.00%, 1.00%, 1.00% and 1.00% of the average net assets attributable to class A, class B, class C, class M and class R shares, respectively. The Trustees have approved payment by the fund at an annual rate of 0.25%, 1.00%, 1.00%, 0.75% and 0.50% of the average net assets attributable to class A, class B, class C, class M and class R shares, respectively.

For the six months ended January 31, 2008, Putnam Retail Management, acting as underwriter, received net commissions of $68,505 and $806 from the sale of class A and class M shares, respectively, and received $314,968 and $1,732 in contingent deferred sales charges from redemptions of class B and class C shares, respectively. A deferred sales charge of up to 1.00% and 0.65% is assessed on certain redemptions of class A and class M shares, respectively. For the six months ended January 31, 2008, Putnam Retail Management, acting as underwriter, received $1,228 and no monies on class A and class M redemptions, respectively.

Note 3: Purchases and sales of securities

During the six months ended January 31, 2008, cost of purchases and proceeds from sales of investment securities other than short-term investments aggregated $1,166,059,797 and $2,519,172,953, respectively. There were no purchases or sales of U.S. government securities.

For the period ended January 31, 2008, the fund had redemptions in kind which resulted in redemptions out of the fund totaling $252,418,171.

Note 4: Capital shares

At January 31, 2008, there was an unlimited number of shares of beneficial interest authorized. In certain circumstances shares may be purchased or redeemed through the delivery to the fund or

47

receipt by the shareholders, respectively, of securities, the fair value of which is used to determine the number of shares issued or redeemed. Transactions in capital shares were as follows:

CLASS A	Shares	Amount
Six months ended 1/31/08:
Shares sold	7,862,379	$  148,284,000
Shares issued
in connection
with reinvestment
of distributions	—	—
	7,862,379	148,284,000
Shares
repurchased	(41,912,340)	(789,556,327)
Redemptions
in kind	(13,534,486)	(252,418,171)
Net decrease	(47,584,447)	$  (893,690,498)
Year ended 7/31/07:
Shares sold	29,394,378	$  535,519,800
Shares issued
in connection
with reinvestment
of distributions	—	—
	29,394,378	535,519,800
Shares
repurchased	(112,266,931)	(2,045,965,431)
Net decrease	(82,872,553)	$(1,510,445,631)

CLASS B	Shares	Amount
Six months ended 1/31/08:
Shares sold	607,567	$ 9,834,024
Shares issued
in connection
with reinvestment
of distributions	—	—
	607,567	9,834,024
Shares
repurchased	(10,322,419)	(167,737,178)
Net decrease	(9,714,852)	$(157,903,154)
Year ended 7/31/07:
Shares sold	2,738,896	$ 43,092,580
Shares issued
in connection
with reinvestment
of distributions	—	—
	2,738,896	43,092,580
Shares
repurchased	(34,568,118)	(545,201,062)
Net decrease	(31,829,222)	$(502,108,482)
CLASS C	Shares	Amount
Six months ended 1/31/08:
Shares sold	170,769	$ 2,984,163
Shares issued
in connection
with reinvestment
of distributions	—	—
	170,769	2,984,163
Shares
repurchased	(492,178)	(8,726,155)
Net decrease	(321,409)	$ (5,741,992)
Year ended 7/31/07:
Shares sold	348,049	$ 6,010,038
Shares issued
in connection
with reinvestment
of distributions	—	—
	348,049	6,010,038
Shares
repurchased	(1,641,660)	(28,355,192)
Net decrease	(1,293,611)	$(22,345,154)

48

CLASS M	Shares	Amount
Six months ended 1/31/08:
Shares sold	62,940	$  1,115,339
Shares issued
in connection
with reinvestment
of distributions	—	—
	62,940	1,115,339
Shares
repurchased	(411,890)	(7,147,193)
Net decrease	(348,950)	$  (6,031,854)
Year ended 7/31/07:
Shares sold	225,072	$  3,839,429
Shares issued
in connection
with reinvestment
of distributions	—	—
	225,072	3,839,429
Shares
repurchased	(1,434,737)	(24,417,655)
Net decrease	(1,209,665)	$(20,578,226)
CLASS R	Shares	Amount
Six months ended 1/31/08:
Shares sold	88,028	$1,639,539
Shares issued
in connection
with reinvestment
of distributions	—	—
	88,028	1,639,539
Shares
repurchased	(47,409)	(869,074)
Net increase	40,619	$  770,465
Year ended 7/31/07:
Shares sold	38,705	$  699,428
Shares issued
in connection
with reinvestment
of distributions	—	—
	38,705	699,428
Shares
repurchased	(24,737)	(451,868)
Net increase	13,968	$  247,560

CLASS Y	Shares	Amount
Six months ended 1/31/08:
Shares sold	7,240,036	$ 140,214,857
Shares issued
in connection
with reinvestment
of distributions	—	—
	7,240,036	140,214,857
Shares
repurchased	(13,497,655)	(266,493,697)
Net decrease	(6,257,619)	$(126,278,840)
Year ended 7/31/07:
Shares sold	16,630,596	$ 314,594,781
Shares issued
in connection
with reinvestment
of distributions	—	—
	16,630,596	314,594,781
Shares
repurchased	(43,422,559)	(823,624,739)
Net decrease	(26,791,963)	$(509,029,958)

Note 5: Investment in Putnam Prime Money Market Fund

The fund invests in Putnam Prime Money Market Fund, an open-end management investment company managed by Putnam Management. Investments in Putnam Prime Money Market Fund are valued at its closing net asset value each business day. Management fees paid by the fund are reduced by an amount equal to the management fees paid by Putnam Prime Money Market Fund with respect to assets invested by the fund in Putnam Prime Money Market Fund. For the period ended January 31, 2008, management fees paid were reduced by $8,226 relating to the fund’s investment in Putnam Prime Money Market Fund. Income distributions earned by the fund are recorded as income in the Statement of operations and totaled $511,025 for the period ended January 31, 2008. During the period ended January 31, 2008, cost of purchases and proceeds of sales of investments in Putnam Prime Money Market Fund aggregated $423,219,809 and $410,351,044, respectively.

49

Note 6: Regulatory matters and litigation

In late 2003 and 2004, Putnam Management settled charges brought by the SEC and the Massachusetts Securities Division in connection with excessive short-term trading in Putnam funds. Payments from Putnam Management will be distributed to certain open-end Putnam funds and their shareholders. These allegations and related matters have served as the general basis for certain lawsuits, including purported class action lawsuits against Putnam Management and, in a limited number of cases, some Putnam funds. Putnam Management believes that these lawsuits will have no material adverse effect on the funds or on Putnam Management’s ability to provide investment management services. In addition, Putnam Management has agreed to bear any costs incurred by the Putnam funds as a result of these matters.

Putnam Management and Putnam Retail Management are named as defendants in a civil suit in which the plaintiffs allege that the management and distribution fees paid by certain Putnam funds were excessive and seek recovery under the Investment Company Act of 1940. Putnam Management and Putnam Retail Management have contested the plaintiffs’ claims and the matter is currently pending in the U.S. District Court for the District of Massachusetts. Based on currently available information, Putnam Management believes that this action is without merit and that it is unlikely to have a material effect on Putnam Management’s and Putnam Retail Management’s ability to provide services to their clients, including the fund.

Note 7: New accounting pronouncements

In June 2006, the Financial Accounting Standards Board (“FASB”) issued Interpretation No. 48, Accounting for Uncertainty in Income Taxes (the “Interpretation”). The Interpretation prescribes a minimum threshold for financial statement recognition of the benefit of a tax position taken or expected to be taken by a filer in the filer’s tax return. Upon adoption, the Interpretation did not have a material effect on the fund’s financial statements. However, the conclusions regarding the Interpretation may be subject to review and adjustment at a later date based on factors including, but not limited to, further implementation guidance expected from the FASB, and on-going analysis of tax laws, regulations and interpretations thereof.

In September 2006, the FASB issued Statement of Financial Accounting Standards No. 157, Fair Value Measurements (the “Standard”). The Standard defines fair value, sets out a framework for measuring fair value and requires additional disclosures about fair value measurements. The Standard applies to fair value measurements already required or permitted by existing standards. The Standard is effective for financial statements issued for fiscal years beginning after November 15, 2007 and interim periods within those fiscal years. Putnam Management is currently evaluating what impact the adoption of the Standard will have on the fund’s financial statements.

50

Brokerage commissions
(unaudited)

Brokerage commissions are paid to firms that execute trades on behalf of your fund. When choosing these firms, Putnam is required by law to seek the best execution of the trades, taking all relevant factors into consideration, including expected quality of execution and commission rate. Listed below are the largest relationships based upon brokerage commissions for your fund and the other funds in Putnam’s Large-Cap Growth group for the year ended January 31, 2008. The Putnam mutual funds in this group are Putnam Growth Opportunities Fund, Putnam VT Growth Opportunities Fund, and Putnam VT Voyager Fund.

The top five firms that received brokerage commissions for trades executed for the Large-Cap Growth group are (in descending order) Merrill Lynch, Morgan Stanley and Company, UBS Warburg, Goldman Sachs, and Sanford Bernstein. Commissions paid to these firms together represented approximately 52% of the total brokerage commissions paid for the year ended January 31, 2008.

Commissions paid to the next 10 firms together represented approximately 35% of the total brokerage commissions paid during the period. These firms are (in alphabetical order) Bear Stearns & Company, Citigroup Global Markets, Credit Suisse First Boston, Jones Associates, JPMorgan Clearing, Lehman Brothers, Pipeline, RBC Capital Markets Corporation, SG Cowen Securities Corp., and Wachovia Securities.

Commission amounts do not include “mark-ups” paid on bond or derivative trades made directly with a dealer. Additional information about brokerage commissions is available on the Securities and Exchange Commission (SEC) Web site at www.sec.gov. Putnam funds disclose commissions by firm to the SEC in semiannual filings on Form N-SAR.

51

Putnam puts your
interests first

In January 2004, Putnam began introducing a number of voluntary initiatives designed to reduce fund expenses, provide investors with more useful information, and help safeguard the interests of all Putnam investors. Visit www.putnam.com for details.

Cost-cutting initiatives

Ongoing expenses will be limited Through calendar 2008, total ongoing expenses, including management fees for all funds, will be maintained at or below the average of each fund’s industry peers in its Lipper load-fund universe. For more information, please see the Statement of Additional information.

Lower class B purchase limit To help ensure that investors are in the most cost-effective share class, the maximum amount that can be invested in class B shares has been reduced to $100,000. (Larger trades or accumulated amounts will be refused.)

Improved disclosure

Putnam fund prospectuses and shareholder reports have been revised to disclose additional information that will help shareholders compare funds and weigh their costs and risks along with their potential benefits. Shareholders will find easy-to-understand information about fund expense ratios, portfolio manager compensation, risk comparisons, turnover comparisons, brokerage commissions, and employee and trustee ownership of Putnam funds. Disclosure of breakpoint discounts has also been enhanced to alert investors to potential cost savings.

Protecting investors’ interests

Short-term trading fee introduced To discourage short-term trading, which can interfere with a fund’s long-term strategy, a 1% short-term trading fee may be imposed on any Putnam fund shares (other than money market funds) redeemed or exchanged within seven calendar days of purchase (for certain funds, this fee applies for 90 days).

52

Fund information

Founded over 70 years ago, Putnam Investments was built around the concept that a balance between risk and reward is the hallmark of a well-rounded financial program. We manage over 100 mutual funds in growth, value, blend, fixed income, and international.

Investment Manager	Officers	Francis J. McNamara, III
Putnam Investment	Charles E. Haldeman, Jr.	Vice President and
Management, LLC	President	Chief Legal Officer
One Post Office Square
Boston, MA 02109	Charles E. Porter	Robert R. Leveille
	Executive Vice President,	Vice President and
Marketing Services	Principal Executive Officer,	Chief Compliance Officer
Putnam Retail Management	Associate Treasurer and
One Post Office Square	Compliance Liaison	Mark C. Trenchard
Boston, MA 02109		Vice President and
	Jonathan S. Horwitz	BSA Compliance Officer
Custodian	Senior Vice President
State Street Bank and	and Treasurer	Judith Cohen
Trust Company		Vice President, Clerk and
	Steven D. Krichmar	Assistant Treasurer
Legal Counsel	Vice President and
Ropes & Gray LLP	Principal Financial Officer	Wanda M. McManus
		Vice President, Senior Associate
Trustees	Janet C. Smith	Treasurer and Assistant Clerk
John A. Hill, Chairman	Vice President, Principal
Jameson Adkins Baxter,	Accounting Officer and	Nancy E. Florek
Vice Chairman	Assistant Treasurer	Vice President, Assistant Clerk,
Charles B. Curtis		Assistant Treasurer and
Robert J. Darretta	Susan G. Malloy	Proxy Manager
Myra R. Drucker	Vice President and
Charles E. Haldeman, Jr.	Assistant Treasurer
Paul L. Joskow
Elizabeth T. Kennan	Beth S. Mazor
Kenneth R. Leibler	Vice President
Robert E. Patterson
George Putnam, III	James P. Pappas
W. Thomas Stephens	Vice President
Richard B. Worley

This report is for the information of shareholders of Putnam Voyager Fund. It may also be used as sales literature when preceded or accompanied by the current prospectus, the most recent copy of Putnam’s Quarterly Performance Summary, and Putnam’s Quarterly Ranking Summary. For more recent performance, please visit www.putnam.com. Investors should carefully consider the investment objective, risks, charges, and expenses of a fund, which are described in its prospectus. For this and other information or to request a prospectus, call 1-800-225-1581 toll free. Please read the prospectus carefully before investing. The fund’s Statement of Additional Information contains additional information about the fund’s Trustees and is available without charge upon request by calling 1-800-225-1581.

Item 2. Code of Ethics:

Not applicable

Item 3. Audit Committee Financial Expert:

Not applicable

Item 4. Principal Accountant Fees and Services:

Not applicable

Item 5. Audit Committee of Listed Registrants

Not applicable

Item 6. Schedule of Investments:

The registrant’s schedule of investments in unaffiliated issuers is included in the report to shareholders in Item 1 above.

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

Not applicable

Item 8. Portfolio Managers of Closed-End Investment Companies

Not Applicable

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

Not applicable

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

Not applicable

Item 11. Controls and Procedures:

(a) The registrant's principal executive officer and principal financial officer have concluded, based on their evaluation of the effectiveness of the design and operation of the registrant's disclosure controls and procedures as of a date within 90 days of the filing date of this report, that the design and operation of such procedures are generally effective to provide reasonable assurance that information required to be disclosed by the registrant in this report is recorded, processed, summarized and reported within the time periods specified in the Commission's rules and forms.

(b) Changes in internal control over financial reporting: Not applicable

Item 12. Exhibits:

(a)(1) Not applicable

(a)(2) Separate certifications for the principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the Investment Company Act of 1940, as amended, are filed herewith.

(b) The certifications required by Rule 30a-2(b) under the Investment Company Act of 1940, as amended, are filed herewith.

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.

Putnam Voyager Fund

By (Signature and Title):

/s/Janet C. Smith
Janet C. Smith
Principal Accounting Officer

Date: March 31, 2008

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 (Signature and Title):

/s/Charles E. Porter
Charles E. Porter
Principal Executive Officer

Date: March 31, 2008

By (Signature and Title):

/s/Steven D. Krichmar
Steven D. Krichmar
Principal Financial Officer

Date: March 31, 2008

EX-99.CERT

Certifications

I, Charles E. Porter, the Principal Executive Officer of the funds listed on Attachment A, certify that:

1. I have reviewed each report on Form N-CSR of the funds listed on Attachment A:

2. Based on my knowledge, each report does not contain any untrue statements of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by each report;

3. Based on my knowledge, the financial statements, and other financial information included ineach report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the periods presented in each report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which each report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of each report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed to each registrant's auditors and the audit committee of each registrant's board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect each registrant's ability to record, process, summarize, and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in each registrant's internal control over financial reporting.

Date: March 28, 2008

/s/ Charles E. Porter
_______________________
Charles E. Porter
Principal Executive Officer

Certifications

I, Steven D. Krichmar, the Principal Financial Officer of the funds listed on Attachment A, certify that:

1. I have reviewed each report on Form N-CSR of the funds listed on Attachment A:

2. Based on my knowledge, each report does not contain any untrue statements of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by each report;

3. Based on my knowledge, the financial statements, and other financial information included in each report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the periods presented in each report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which each report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of each report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed to each registrant's auditors and the audit committee of each registrant's board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect each registrant's ability to record, process, summarize, and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in each registrant's internal control over financial reporting.

Date: March 28, 2008

/s/ Steven D. Krichmar
_______________________
Steven D. Krichmar
Principal Financial Officer

	Attachment A
	N-CSR
	Period (s) ended January 31, 2008
073	Putnam Premier Income Trust
2AQ	Putnam Research Fund
003	Putnam Investors Fund
007	Putnam Voyager Fund
006	Putnam Vista Fund
036	Putnam Tax Free High Yield Fund
035	Putnam AMT-Free Insured Municipal Fund
024	Putnam OTC & Emerging Growth Fund
2AP	Putnam Growth Opportunities Fund
001	The George Putnam Fund of Boston
Putnam RetirementReady – Funds
7CR	Putnam RetirementReady --2050
40M	Putnam RetirementReady – 2045
40F	Putnam RetirementReady --2040
49Y	Putnam RetirementReady – 2035
49R	Putnam RetirementReady – 2030
49K	Putnam RetirementReady – 2025
49D	Putnam RetirementReady --2020
48W	Putnam RetirementReady – 2015
48I	Putnam RetirementReady – 2010
48P	Putnam RetirementReady --Maturity Fund

EX-99.906 CERT

Section 906 Certifications

I, Charles E. Porter, the Principal Executive Officer of the Funds listed on Attachment A, certify that, to my knowledge:

1. The form N-CSR of the Funds listed on Attachment A for the period ended January 31, 2008 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Form N-CSR of the Funds listed on Attachment A for the period ended January 31, 2008 fairly presents, in all material respects, the financial condition and results of operations of the Funds listed on Attachment A.

Date: March 28, 2008

/s/ Charles E. Porter
______________________
Charles E. Porter
Principal Executive Officer

Section 906 Certifications

I, Steven D. Krichmar, the Principal Financial Officer of the Funds listed on Attachment A, certify that, to my knowledge:

1. The form N-CSR of the Funds listed on Attachment A for the period ended January 31, 2008 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Form N-CSR of the Funds listed on Attachment A for the period ended January 31, 2008 fairly presents, in all material respects, the financial condition and results of operations of the Funds listed on Attachment A.

Date: March 28, 2008

/s/ Steven D. Krichmar
______________________
Steven D. Krichmar
Principal Financial Officer

	Attachment A
	N-CSR
	Period (s) ended January 31, 2008
073	Putnam Premier Income Trust
2AQ	Putnam Research Fund
003	Putnam Investors Fund
007	Putnam Voyager Fund
006	Putnam Vista Fund
036	Putnam Tax Free High Yield Fund
035	Putnam AMT-Free Insured Municipal Fund
024	Putnam OTC & Emerging Growth Fund
2AP	Putnam Growth Opportunities Fund
001	The George Putnam Fund of Boston
Putnam RetirementReady – Funds
7CR	Putnam RetirementReady --2050
40M	Putnam RetirementReady – 2045
40F	Putnam RetirementReady --2040
49Y	Putnam RetirementReady – 2035
49R	Putnam RetirementReady – 2030
49K	Putnam RetirementReady – 2025
49D	Putnam RetirementReady --2020
48W	Putnam RetirementReady – 2015
48I	Putnam RetirementReady – 2010
48P	Putnam RetirementReady --Maturity Fund