Fidelity® Mega Cap Stock Fund

Class/Ticker

Fidelity Advisor® Mega Cap Stock Fund

A/FGTAX M/FTGRX C/FGRCX I/FTRIX Z/FZALX

Summary Prospectus

August 29, 2018

Before you invest, you may want to review the fund's prospectus, which contains more information about the fund and its risks. You can find the fund's prospectus and other information about the fund (including the fund's SAI) online at institutional.fidelity.com/fafunddocuments. You can also get this information at no cost by calling 1-866-997-1254 or by sending an e-mail request to funddocuments@fmr.com. The fund's prospectus and SAI dated August 29, 2018 are incorporated herein by reference.

245 Summer Street, Boston, MA 02210

Fund Summary

Fund/Class:
Fidelity® Mega Cap Stock Fund
/Fidelity Advisor® Mega Cap Stock Fund A, M, C, I, Z

Investment Objective

The fund seeks high total return through a combination of current income and capital appreciation.

Fee Table

The following table describes the fees and expenses that may be incurred when you buy and hold shares of the fund. In addition to the fees and expenses described below, your broker may also require you to pay brokerage commissions on purchases and sales of certain share classes of the fund.

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the fund or certain other Fidelity^® funds. More information about these and other discounts is available from your investment professional and in the "Fund Distribution" section beginning on page 28 of the prospectus. Different intermediaries may provide additional waivers or reductions of the sales charge. Please see “Sales Charge Waiver Policies Applied by Certain Intermediaries” in the “Appendix” section of the prospectus.

Shareholder fees

(fees paid directly from your investment)

	Class A	Class M	Class C	Class I	Class Z
Maximum sales charge (load) on purchases (as a % of offering price)	5.75%	3.50%	None	None	None
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds)	None^(a)	None^(a)	1.00%^(b)	None	None

^(a) Class A and Class M purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class M purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% or 0.25%, respectively.

^(b) On Class C shares redeemed less than one year after purchase.

Annual Operating Expenses

(expenses that you pay each year as a % of the value of your investment)

	Class A	Class M	Class C	Class I	Class Z
Management fee	0.44%	0.44%	0.44%	0.44%	0.44%
Distribution and/or Service (12b-1) fees	0.25%	0.50%	1.00%	None	None
Other expenses	0.24%	0.25%	0.24%	0.23%	0.09%
Total annual operating expenses	0.93%	1.19%	1.68%	0.67%	0.53%

This example helps compare the cost of investing in the fund with the cost of investing in other funds.

Let's say, hypothetically, that the annual return for shares of the fund is 5% and that your shareholder fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated and if you hold your shares:

	Class A		Class M		Class C		Class I		Class Z
	Sell All Shares	Hold Shares	Sell All Shares	Hold Shares	Sell All Shares	Hold Shares	Sell All Shares	Hold Shares	Sell All Shares	Hold Shares
1 year	$664	$664	$467	$467	$271	$171	$68	$68	$54	$54
3 years	$854	$854	$715	$715	$530	$530	$214	$214	$170	$170
5 years	$1,060	$1,060	$981	$981	$913	$913	$373	$373	$296	$296
10 years	$1,652	$1,652	$1,743	$1,743	$1,987	$1,987	$835	$835	$665	$665

Portfolio Turnover

The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 39% of the average value of its portfolio.

Principal Investment Strategies

Normally investing at least 80% of assets in common stocks of companies with mega market capitalizations (which, for purposes of this fund, are those companies with market capitalizations similar to companies in the Russell Top 200^® Index or the S&P 100^® Index).

Investing in domestic and foreign issuers.

Investing in either "growth" stocks or "value" stocks or both.

Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions, to select investments.

Principal Investment Risks

Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.

Foreign Exposure. Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market.

Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.

An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. You could lose money by investing in the fund.

Performance

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. The indexes have characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit institutional.fidelity.com for more recent performance information.

Year-by-Year Returns

The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.

During the periods shown in the chart for Class A:	Returns	Quarter ended
Highest Quarter Return	18.23%	June 30, 2009
Lowest Quarter Return	(13.14)%	September 30, 2011
Year-to-Date Return	0.41%	June 30, 2018

Average Annual Returns

Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.

For the periods ended December 31, 2017	Past 1 year	Past 5 years	Life of class^(a)
Class A - Return Before Taxes	10.74%	12.76%	8.05%
Return After Taxes on Distributions	6.74%	11.30%	7.25%
Return After Taxes on Distributions and Sale of Fund Shares	8.97%	10.01%	6.44%
Class M - Return Before Taxes	13.11%	13.03%	8.03%
Class C - Return Before Taxes	15.63%	13.28%	7.90%
Class I - Return Before Taxes	17.77%	14.42%	9.00%
Class Z - Return Before Taxes	17.97%	—	11.72%
S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	21.83%	15.79%	9.60%
Russell Top 200® Index (reflects no deduction for fees, expenses, or taxes)	22.96%	16.01%	9.50%

(a) From February 5, 2008 for Class A, Class M, Class C, and Class I; and August 13, 2013 for Class Z.

Investment Adviser

Fidelity Management & Research Company (FMR) (the Adviser) is the fund's manager. FMR Co., Inc. (FMRC) and other investment advisers serve as sub-advisers for the fund.

Portfolio Manager(s)

Matthew Fruhan (lead portfolio manager) has managed the fund since April 2009.

Ashley Fernandes (co-manager) has managed the fund since October 2017.

Purchase and Sale of Shares

You may buy or sell shares through a retirement account or through an investment professional. You may buy or sell shares in various ways:

Internet

institutional.fidelity.com

Phone

To reach a Fidelity representative 1-877-208-0098

Mail

Fidelity Investments
P.O. Box 770002
Cincinnati, OH 45277-0081

Overnight Express:
Fidelity Investments
100 Crosby Parkway
Covington, KY 41015

Class Z shares are offered to (i) employee benefit plans investing through an intermediary, (ii) employee benefit plans not recordkept by Fidelity, and (iii) certain managed account programs. For this purpose, employee benefit plans generally include profit sharing, 401(k), and 403(b) plans, but do not include: IRAs; SIMPLE, SEP, or SARSEP plans; plans covering self-employed individuals and their employees (formerly Keogh/H.R. 10 plans); health savings accounts; or plans investing through the Fidelity Advisor® 403(b) program. Plan participants may purchase Class Z shares of the fund only if Class Z shares are eligible for sale and available through their plan. You may buy or sell shares by contacting your employee benefit plan.

Class I and Class Z eligibility requirements are listed in the "Additional Information about the Purchase and Sale of Shares" section of the prospectus.

The price to buy one share of Class A or Class M is its offering price, if you pay a front-end sales charge, or its net asset value per share (NAV), if you qualify for a front-end sales charge waiver. The price to buy one share of Class C, Class I, or Class Z is its NAV. Shares will be bought at the offering price or NAV, as applicable, next calculated after an order is received in proper form.

The price to sell one share of Class A, Class M, or Class C is its NAV, minus any applicable contingent deferred sales charge (CDSC). The price to sell one share of Class I or Class Z is its NAV. Shares will be sold at the NAV next calculated after an order is received in proper form, minus any applicable CDSC.

The fund is open for business each day the New York Stock Exchange (NYSE) is open.

There is no purchase minimum for Class A, Class M, Class C, Class I or Class Z shares.

Tax Information

Distributions you receive from the fund are subject to federal income tax and generally will be taxed as ordinary income or capital gains, and may also be subject to state or local taxes, unless you are investing through a tax-advantaged retirement account (in which case you may be taxed later, upon withdrawal of your investment from such account).

Payments to Broker-Dealers and Other Financial Intermediaries

The fund, the Adviser, Fidelity Distributors Corporation (FDC), and/or their affiliates may pay intermediaries, which may include banks, broker-dealers, retirement plan sponsors, administrators, or service-providers (who may be affiliated with the Adviser or FDC), for the sale of fund shares and related services. These payments may create a conflict of interest by influencing your intermediary and your investment professional to recommend the fund over another investment. Ask your investment professional or visit your intermediary's web site for more information.

Current regulations allow Fidelity to send a single copy of shareholder documents for Fidelity^® funds, such as prospectuses, annual and semiannual reports, and proxy materials, to certain mutual fund customers whom we believe are members of the same family who share the same address. For certain types of accounts, we will not send multiple copies of these documents to you and members of your family who share the same address. Instead, we will send only a single copy of these documents. This will continue for as long as you are a shareholder, unless you notify us otherwise. If at any time you choose to receive individual copies of any documents, please call 1-877-208-0098. We will begin sending individual copies to you within 30 days of receiving your call.

FDC is a member of the Securities Investor Protection Corporation (SIPC). You may obtain information about SIPC, including the SIPC brochure, by visiting www.sipc.org or calling SIPC at 202-371-8300.

Any third-party marks that may appear above are the marks of their respective owners.

1.929465.109

AGII-SUM-0818

Fidelity® Mega Cap Stock Fund

Class/Ticker

Fidelity® Mega Cap Stock Fund/FGRTX

In this summary prospectus, the term "shares" (as it relates to the fund) means the class of shares offered through this summary prospectus.

Summary Prospectus

August 29, 2018

Before you invest, you may want to review the fund's prospectus, which contains more information about the fund and its risks. You can find the fund's prospectus and other information about the fund (including the fund's SAI) online at www.fidelity.com/funddocuments. You can also get this information at no cost by calling 1-800-FIDELITY or by sending an e-mail request to fidfunddocuments@fidelity.com. The fund's prospectus and SAI dated August 29, 2018 are incorporated herein by reference.

245 Summer Street, Boston, MA 02210

Fund Summary

Fund/Class:
Fidelity® Mega Cap Stock Fund
/Fidelity® Mega Cap Stock Fund

Investment Objective

The fund seeks high total return through a combination of current income and capital appreciation.

Fee Table

The following table describes the fees and expenses that may be incurred when you buy and hold shares of the fund.

Shareholder fees

(fees paid directly from your investment)

None

Annual Operating Expenses

(expenses that you pay each year as a % of the value of your investment)

Management fee		0.44%
Distribution and/or Service (12b-1) fees		None
Other expenses		0.24%
Total annual operating expenses		0.68%

This example helps compare the cost of investing in the fund with the cost of investing in other funds.

1 year	$69
3 years	$218
5 years	$379
10 years	$847

Portfolio Turnover

Principal Investment Strategies

Normally investing at least 80% of assets in common stocks of companies with mega market capitalizations (which, for purposes of this fund, are those companies with market capitalizations similar to companies in the Russell Top 200^® Index or the S&P 100^® Index).

Investing in domestic and foreign issuers.

Investing in either "growth" stocks or "value" stocks or both.

Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions, to select investments.

Principal Investment Risks

Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.

Foreign Exposure. Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market.

Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.

Performance

Visit www.fidelity.com for more recent performance information.

Year-by-Year Returns

During the periods shown in the chart:	Returns	Quarter ended
Highest Quarter Return	18.52%	June 30, 2009
Lowest Quarter Return	(21.33)%	December 31, 2008
Year-to-Date Return	0.52%	June 30, 2018

Average Annual Returns

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).

For the periods ended December 31, 2017	Past 1 year	Past 5 years	Past 10 years
Fidelity® Mega Cap Stock Fund
Return Before Taxes	17.77%	14.43%	7.90%
Return After Taxes on Distributions	13.50%	12.90%	7.06%
Return After Taxes on Distributions and Sale of Fund Shares	13.15%	11.40%	6.30%
S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	21.83%	15.79%	8.50%
Russell Top 200® Index (reflects no deduction for fees, expenses, or taxes)	22.96%	16.01%	8.39%

Investment Adviser

Fidelity Management & Research Company (FMR) (the Adviser) is the fund's manager. FMR Co., Inc. (FMRC) and other investment advisers serve as sub-advisers for the fund.

Portfolio Manager(s)

Matthew Fruhan (lead portfolio manager) has managed the fund since April 2009.

Ashley Fernandes (co-manager) has managed the fund since October 2017.

Purchase and Sale of Shares

You may buy or sell shares through a Fidelity^® brokerage or mutual fund account, through a retirement account, or through an investment professional. You may buy or sell shares in various ways:

Internet

www.fidelity.com

Phone

Fidelity Automated Service Telephone (FAST^®) 1-800-544-5555

To reach a Fidelity representative 1-800-544-6666

Mail

Additional purchases:

Fidelity Investments
P.O. Box 770001
Cincinnati, OH 45277-0003

Redemptions:

Fidelity Investments
P.O. Box 770001
Cincinnati, OH 45277-0035

TDD- Service for the Deaf and Hearing Impaired

1-800-544-0118

The price to buy one share is its net asset value per share (NAV). Shares will be bought at the NAV next calculated after an order is received in proper form.

The price to sell one share is its NAV. Shares will be sold at the NAV next calculated after an order is received in proper form.

The fund is open for business each day the New York Stock Exchange (NYSE) is open.

The fund has no minimum investment requirement.

There is no purchase minimum for fund shares.

Tax Information

Payments to Broker-Dealers and Other Financial Intermediaries

Current regulations allow Fidelity to send a single copy of shareholder documents for Fidelity^® funds, such as prospectuses, annual and semiannual reports, and proxy materials, to certain mutual fund customers whom we believe are members of the same family who share the same address. For certain types of accounts, we will not send multiple copies of these documents to you and members of your family who share the same address. Instead, we will send only a single copy of these documents. This will continue for as long as you are a shareholder, unless you notify us otherwise. If at any time you choose to receive individual copies of any documents, please call 1-800-544-8544. We will begin sending individual copies to you within 30 days of receiving your call.

FDC is a member of the Securities Investor Protection Corporation (SIPC). You may obtain information about SIPC, including the SIPC brochure, by visiting www.sipc.org or calling SIPC at 202-371-8300.

Any third-party marks that may appear above are the marks of their respective owners.

1.929467.108

GII-SUM-0818