CAPITAL ADVISORS GROWTH FUND Investor Class CIAOX Summary Prospectus April 30, 2019 www.capadvfunds.com

Beginning on January 1, 2021, as permitted by regulations adopted by the Securities and Exchange Commission, paper copies of the Fund’s (defined herein) shareholder reports will no longer be sent by mail, unless you specifically request paper copies of the reports from the Fund or from your financial intermediary, such as a broker-dealer or bank. Instead, the reports will be made available on a website, and you will be notified by mail each time a report is posted and provided with a website link to access the report.

If you already elected to receive shareholder reports electronically, you will not be affected by this change and you need not take any action. You may elect to receive shareholder reports and other communications from the Fund or your financial intermediary electronically through the Fund’s website.

You may elect to receive all future reports in paper free of charge. You can inform the Fund or your financial intermediary that you wish to continue receiving paper copies of your shareholder reports. Your election to receive reports in paper may apply to all funds held through your financial intermediary.

Before you invest, you may want to review the Capital Advisors Growth Fund’s (the “Fund”) Statutory Prospectus and Statement of Additional Information ("SAI"), which contain more information about the Fund and its risks. The current Statutory Prospectus and SAI dated April 30, 2019, are incorporated by reference into this Summary Prospectus. You can find the Fund’s Statutory Prospectus, SAI, reports to shareholders, and other information about the Fund online at http://capadvfunds.com/pages/how-to-invest. You can also get this information at no cost by calling 1-866-205-0523 or by sending an email request to debrak@capitaladv.com.

Investment Objective

The Fundseeks to achieve long-term capital growth.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold Investor Class shares of the Fund.

SHAREHOLDER FEES (fees paid directly from your investment)
Redemption fee (as a percentage of amount redeemed on shares held 7 days or less)	2.00%
ANNUAL FUND OPERATING EXPENSES(expenses that you pay each year as a percentage of the value of your investment)
Management Fees	0.75%
Other Expenses	0.43%
Acquired Fund Fees and Expenses	0.02%
Total Annual Fund Operating Expenses(1)	1.20%
Less: Fee Waiver(2)	-0.18%
Total Annual Fund Operating Expenses After Fee Waiver	1.02%

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⁽¹⁾  Total Annual Fund Operating Expenses do not correlate to the “Ratio of Expenses to Average Net Assets Before Fee Waivers” found in the Financial Highlights of the statutory prospectus, which reflects the Fund’s operating expenses and does not include expenses attributed to acquired fund fees and expenses (“AFFE”).

⁽²⁾  Capital Advisors, Inc. (the “Advisor”) has contractually agreed to waive a portion or all of its management fees and pay Fund expenses to ensure that Total Annual Fund Operating Expenses (excluding AFFE, taxes, interest and extraordinary expenses) do not exceed 1.00% of the Fund’s average daily net assets (the “Expense Cap”). The Expense Cap will remain in effect through at least April 29, 2020, and may only be terminated by the Board of Trustees (the “Board”) of Advisors Series Trust (the “Trust”).

Example. This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and that you then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same (taking into account the Expense Cap only in the first year). Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

1 Year	3 Years	5 Years	10 Years
$104	$363	$642	$1,439

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 fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 46.32% of the average value of its portfolio.

Principal Investment Strategies

The Fund invests primarily in common stocks of domestic (U.S.) companies. The Fund may also invest in securities of foreign companies that are publicly traded in the U.S., including in American Depositary Receipts (“ADRs”). Under normal conditions, the Fund invests at least 65% of its total assets in common stocks of companies that the Advisor believes have the potential for long-term growth of capital. The Advisor uses the growth style of investing. Growth stocks are equity securities of companies that have or are expected to have above-average earnings growth. The Fund may also write covered call options on up to 33% of its net assets for the purpose of generating additional income for the Fund.

The Fund buys and sells stocks based on the Advisor’s research, and focuses on characteristics that the Advisor believes allow a company to grow at an above-average rate for an extended period of time, including: dominant position within its industry; sustainable competitive advantage; shareholder oriented management philosophy; strong brand or franchise value; operating within a definable growing market; and strong research and development.

The Fund will consider selling stocks in its portfolio when the stock reaches its target, fundamentals supporting the stock’s value deteriorate, and/or better investment alternatives exist.

The Fund may also invest in cash, cash equivalents, and high-quality, short-term debt securities and money market instruments for temporary defensive purposes.

Principal Risks

The Fund cannot guarantee that it will achieve its investment objective. There is the risk that you could lose money on your investment in the Fund. The following are the principal risks that could adversely affect the value of your investment in the Fund.

• Market and Regulatory Risk –Events in the financial markets and economy may cause volatility and uncertainty and adversely impact the Fund’s performance. Market events may affect a single issuer, industry, sector, or the market as a

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whole. Traditionally liquid investments may experience periods of diminished liquidity. Governmental and regulatory actions, including tax law changes, may also impair portfolio management and have unexpected or adverse consequences on particular markets, strategies, or investments.

• Equity Securities Risk – The price of equity securities may rise or fall because of economic or political changes or changes in a company’s financial condition, sometimes rapidly or unpredictably. These price movements may result from factors affecting individual companies, sectors or industries selected for the Fund’s portfolio or the securities market as a whole, such as changes in economic or political conditions.

• Growth-Style Investing Risk – Over time, a growth oriented investing style may go in and out of favor, which may cause the Fund to underperform other equity funds that use different investing styles.

• Management Risk – The Fund’s ability to achieve its investment objective depends on the ability of the Advisor to correctly identify economic trends and select stocks.

• Options Risk – Writing call options is a highly specialized activity and entails greater than ordinary investment risks. By writing (or selling) a call option, the Fund loses the potential for gain on the underlying security above the exercise price.  If the call option is exercised, the Fund misses out on any gain from an increase in the market price over the exercise price.

• Non-U.S. Investment Risk – Foreign securities can be more volatile than domestic (U.S.) securities. Securities markets of other countries are generally smaller than U.S. securities markets. Many foreign securities may be less liquid and more volatile than U.S. securities, which could affect the Fund’s investments.

• Depositary Receipt Risk –The risks of depository receipts include many risks associated with investing directly in foreign securities, such as individual country risk and liquidity risk. Unsponsored ADRs, which are issued by a depositary bank without the participation or consent of the issuer, involve additional risks because U.S. reporting requirements do not apply, and the issuing bank will recover shareholder distribution costs from movement of share prices and payment of dividends.

Who May Want to Invest in the Fund?

The Fund may be appropriate for investors who:

• Are pursuing a long-term goal such as retirement;

• Want to add an investment with growth potential to diversify their investment portfolio; or

• Are willing to accept higher short-term risk along with a higher potential for long-term growth.

Performance

The following performance information provides some indication of the risks of investing in the Fund. The bar chart shows the annual returns for the Fund from year to year. The table shows how the Fund’s average annual returns for the 1-year, 5-year and 10-year periods compare with those of a broad measure of market performance, as well as an index that reflects the market sectors in which the Fund invests. The Fund’s past performance, before and after taxes, does not necessarily indicate how it will perform in the future. Updated performance information is available on the Fund’s website at www.capadvfunds.com or by calling the Fund toll-free at 1-866-205-0523.

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During the period of time shown in the bar chart, the Fund’s highest quarterly return was 12.35% for the quarter ended March 31, 2012, and the lowest quarterly return was -15.23% for the quarter ended December 31, 2018.

Average Annual Total Returns (For the periods ended December 31, 2018)	1 Year	5 Years	10 Years
Investor Class
Return Before Taxes	-4.80%	5.52%	10.12%
Return After Taxes on Distributions	-6.17%	4.02%	9.21%
Return After Taxes on Distributions and Sale of Fund Shares	-1.76%	4.24%	8.32%
S&P 500® Index	-4.38%	8.49%	13.12%
(reflects no deduction for fees, expenses, or taxes)
Russell 1000® Growth Index	-1.51%	10.40%	15.29%
(reflects no deduction for fees, expenses, or taxes)

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. Furthermore, the after-tax returns shown are not relevant to those who hold their shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts (“IRAs”). The Return After Taxes on Distributions and Sale of Fund Shares is higher than other return figures when a capital loss occurs upon redemption and provides an assumed tax deduction that benefits the investor.

Management

Investment Advisor. Capital Advisors, Inc. is the investment advisor to the Fund.

Portfolio Managers. Keith C. Goddard, CFA, CEO and Chief Investment Officer and Steven V. Soranno, CFA, CAIA and Director of Equity Research are the co-portfolio managers primarily responsible for the day-to-day management of the Fund. Mr. Goddard has managed the Fund since April 2001. Mr. Soranno has managed the Fund since June 2017.

Purchase and Sale of Fund Shares

You may purchase or redeem Fund shares on any business day by written request via mail (Capital Advisors Growth Fund, c/o U.S. Bank Global Fund Services, P.O. Box 701, Milwaukee, Wisconsin 53201-0701), by telephone at 1-866-205-0523 or through a financial intermediary. You may also purchase or redeem Fund shares by wire transfer. Investors who wish to purchase or redeem Fund shares through a financial intermediary should contact the financial intermediary directly. The minimum initial and subsequent investment amounts are shown below.

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Type of Account	To Open Your Account	To Add to Your Account
Regular	$5,000	$250
Retirement Plan Accounts	$500	$100
Automatic Investment Plan	$1,000	$100

Tax Information

The Fund’s distributions are taxable and will be taxed as ordinary income or capital gains, unless you invest through a tax-deferred arrangement, such as an IRA or 401(k) plan. Distributions on investments made through tax-deferred arrangements may be taxed later upon withdrawal of assets from those accounts.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase Fund shares through a broker-dealer or other financial intermediary, the Fund and/or the Advisor may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your sales person or visit your financial intermediary’s website for more information.

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