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Summary Prospectus April 10, 2017

Virtus Tactical Allocation Fund

A: NAINX

C: POICX

T: VXTTX

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, statement of additional information (SAI), annual report and other information about the fund online at virtus.com/products/prospectuses.

You can also get this information at no cost by calling 800-243-1574 or by sending an e-mail to: virtus.investment.partners@virtus.com. If you purchase shares of the fund through a broker-dealer or other financial intermediary (such as a bank), the prospectus and other information will also be available from your financial intermediary.

The fund’s prospectus and SAI, both dated April 10, 2017, are incorporated by reference into this Summary Prospectus.

Investment Objective

The fund has investment objectives of capital appreciation and income.

Fees and Expenses

The tables below illustrate all fees and expenses that you may pay if you buy and hold shares of the fund. You may qualify for sales charge discounts in Class A Shares if you and your family invest, or agree to invest in the future, at least $50,000 in Virtus Funds. You may qualify for sales charge discounts in Class T Shares if you invest at least $250,000 in the fund. More information on these and other discounts is available: (i) from your financial advisor or other financial intermediary; (ii) under “Sales Charges” on page 81 of the fund’s prospectus; (iii) with respect to purchase of shares through specific intermediaries, in Appendix A to the fund’s prospectus, entitled “Intermediary Sales Charge Discounts and Waivers;” and (iv) under “Alternative Purchase Arrangements” on page 87 of the fund’s statement of additional information (“SAI”).

Shareholder Fees (fees paid directly from your investment)

Class A

Class C

Class T

Maximum Sales Charge (load) Imposed on Purchases (as a percentage of offering price)

5.75

Non

2.50

Maximum Deferred Sales Charge (load) (as a percentage of the lesser of purchase price or redemption proceeds)

Non

1.00

%(a)

Non

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)	Class A			Class C			Class T
Management Fees		0.70	%		0.70	%		0.70	%
Distribution and Shareholder Servicing (12b-1) Fees		0.25	%		1.00	%		0.25	%
Other Expenses		0.38	%		0.38	%		0.38	%(b)
Acquired Fund Fees and Expenses		0.01	%		0.01	%		0.01	%
Total Annual Fund Operating Expenses(c)		1.34	%		2.09	%		1.34	%

(a)

The deferred sales charge is imposed on Class C Shares redeemed during the first year only.

(b)

Estimated for current fiscal year, as annualized.

(c)

The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets appearing in the Financial Highlights tables, which tables reflect only the operating expenses of the fund and do not include acquired fund fees and expenses.

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 an investment of $10,000 in the fund for the time periods indicated. It shows your costs if you sold your shares at the end of the period or continued to hold them. The example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

	Share Status	1 Year		3 Years		5 Years		10 Years
Class A	Sold or Held		$704		$975		$1,267		$2,095
Class C	Sold		$312		$655		$1,124		$2,421
Class C	Held		$212		$655		$1,124		$2,421
Class T	Sold or Held		$383		$664		$966		$1,822

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 81% of the average value of its portfolio.

Investments, Risks and Performance

Principal Investment Strategies

Diversified across equity and fixed income securities, the fund’s tactical allocation approach seeks to generate a combination of capital appreciation and income. For the fund’s U.S. equity allocation, the subadviser invests in a select group of large market capitalization growth companies believed to be undervalued relative to their future growth potential. The investment strategy emphasizes companies the subadviser believes to have a sustainable competitive advantage, strong management and low financial risk, and to be able to grow over market cycles. For the fund’s non-U.S. equity exposure, which may be implemented through American Depositary Receipts (ADRs), the subadviser’s process is driven by bottom-up fundamental research and informed by top-down macro views. For the fixed income allocation, the subadviser employs a time-tested approach of active sector rotation, extensive credit research, and disciplined risk management designed to capitalize on opportunities across the fixed income markets.

The fund invests in U.S. equity, non-U.S. equity and fixed income securities using a tactical allocation approach. Generally, the following percentages apply: 25% to 60% invested in U.S. equity securities, 5% to 30% invested in non-U.S. equity securities and 35% to 60% invested in fixed income securities. The equity allocation is invested in common, preferred, and ADR securities. The fixed income allocation may be invested in all sectors of fixed income securities, including high-yield/high-risk (“junk bonds”), bank loans (which are generally floating rate), mortgage-backed and asset-backed, government, corporate, and municipal debt obligations. Normally, the fund’s fixed income allocation has a dollar-weighted average duration of between two and eight years. The fund may invest in both U.S. and foreign (non-U.S.) securities, including those of issuers in emerging market countries, and may invest in issuers of any size. Allocation percentages are measured at time of purchase.

Generally, the fund’s U.S. equity investments are in large market capitalization companies. As of the date of this Prospectus, the fund’s subadviser considers large market capitalization companies for this purpose to be those companies that, at the time of initial purchase, have market capitalizations within the range of the Russell 1000® Index. Because large market capitalization companies are defined by reference to an index, the market capitalization of companies in which the fund invests may vary with market conditions. As of June 30, 2016, the market capitalization of companies included in the Russell 1000® Index was $1.14 billion to $524 billion.

Principal Risks

The fund may not achieve its objective(s), and it is not intended to be a complete investment program. The value of the fund’s investments that supports your share value may decrease. If between the time you purchase shares and the time you sell shares the value of the fund’s investments decreases, you will lose money. Investment values can decrease for a number of reasons. Conditions affecting the overall economy, specific industries or companies in which the fund invests can be worse than expected, and investments may fail to perform as the subadvisers expect. As a result, the value of your shares may decrease. Purchase and redemption activities by fund shareholders may impact the management of the fund and its ability to achieve its investment objective(s). The redemption by one or more large shareholders or groups of shareholders of their holdings in the fund could have an adverse impact on the remaining shareholders in the fund including by accelerating the realization of capital gains and increasing the fund’s transaction costs. The principal risks of investing in the fund are:

Credit Risk. The risk that the issuer of a security will fail to pay interest or principal in a timely manner, or that negative perceptions of the issuer’s ability to make such payments will cause the price of the security to decline.

Currency Rate Risk. The risk that fluctuations in the exchange rates between the U.S. dollar and foreign currencies may negatively affect the value of the fund’s shares.

Depositary Receipts Risk. The risk that investments in foreign companies through depositary receipts will expose the fund to the same risks as direct investments in securities of foreign issuers.

Emerging Market Investing Risk. The risk that prices of emerging markets securities will be more volatile, or will be more greatly affected by negative conditions, than those of their counterparts in more established foreign markets.

Equity Securities Risk. The risk that events negatively affecting issuers, industries or financial markets in which the fund invests will impact the value of the stocks held by the fund and, thus, the value of the fund’s shares over short or extended periods. Investments in a particular style or in small or medium-sized companies may enhance that risk.

Foreign Investing Risk. The risk that the prices of foreign securities in the fund’s portfolio will be more volatile than those of domestic securities, or will be negatively affected by currency fluctuations, less regulated or liquid securities markets, or economic, political or other developments.

Growth Stocks Risk. The risk that the fund’s investments in growth stocks will be more volatile than investments in other types of stocks, or will perform differently from the market as a whole and from other types of stocks.

High-Yield/High-Risk Fixed Income Securities (Junk Bonds) Risk. The risk that the issuers of high-yield/high-risk securities in the fund’s portfolio will default, that the prices of such securities will be volatile, and that the securities will not be liquid.

Interest Rate Risk. The risk that when interest rates rise, the values of the fund’s debt securities, especially those with longer maturities, will fall.

Large Market Capitalization Companies Risk. The risk that the value of investments in larger companies may not rise as much as smaller companies, or that larger companies may be unable to respond quickly to competitive challenges, such as changes in technology and consumer tastes.

Loan Risk. The risks that, in addition to the risks typically associated with high-yield/high-risk fixed income securities, loans in which the fund invests may be unsecured or not fully collateralized, may be subject to restrictions on resale, and/or some loans may trade infrequently on the secondary market. Loans settle on a delayed basis, potentially leading to the sale proceeds of loans not being available to meet redemptions for a substantial period of time after the sale of the loans.

Long-Term Maturities/Durations Risk. The risk of greater price fluctuations than would be associated with securities having shorter maturities or durations.

Market Volatility Risk. The risk that the value of the securities in which the fund invests may go up or down in response to the prospects of individual issuers and/or general economic conditions. Price changes may be temporary or may last for extended periods.

Mortgage-Backed and Asset-Backed Securities Risk. The risk that changes in interest rates will cause both extension and prepayment risks for mortgage-backed and asset-backed securities in which the fund invests, or that an impairment of the value of collateral underlying such securities will cause the value of the securities to decrease.

Municipal Bond Market Risk. The risk that events negatively impacting a particular municipal security, or the municipal bond market in general, will cause the value of the fund’s shares to decrease, perhaps significantly.

Preferred Stock Risk. The risk that a preferred stock will decline in price, fail to pay dividends when expected, or be illiquid.

U.S. Government Securities Risk. The risk that U.S. Government securities in the fund’s portfolio will be subject to price fluctuations, or that an agency or instrumentality will default on an obligation not backed by the full faith and credit of the United States.

Performance Information

The bar chart and table below provide some indication of the potential risks of investing in the fund. The fund’s past performance, before and after taxes, is not necessarily an indication of how the fund will perform in the future.

Performance for Class T Shares is not shown here as Class T Shares were not available prior to the date of this prospectus.

The bar chart shows changes in the fund’s performance from year to year over a 10-year period.The table shows how the fund’s average annual returns compare to those of two broad-based securities market indexes and a composite benchmark that reflects the target allocation of the fund. Updated performance information is available at virtus.com or by calling 800-243-1574.

Calendar year total returns for Class A Shares (includes returns of a predecessor fund)

Returns do not reflect sales charges and would be lower if they did.

Best Quarter:

Q2/2009:

12.69%

Worst Quarter:

Q4/2008:

-13.01%

Year to date (3/31/17):

6.43%

Average Annual Total Returns (for the periods ended 12/31/16; includes returns of a predecessor fund)

Returns reflect deduction of maximum sales charges and full redemption at end of periods shown.

	1 Year			5 Years			10 Years
Class A Shares
Return Before Taxes		-3.95	%		4.72	%		3.40	%
Return After Taxes on Distributions		-6.53	%		2.62	%		1.93	%
Return After Taxes on Distributions and Sale of Fund Shares		-0.72	%		3.44	%		2.47	%
Class C Shares
Return Before Taxes		1.17	%		5.18	%		3.24	%
S&P 500® Index (reflects no deduction for fees, expenses or taxes)		11.96	%		14.66	%		6.95	%
Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)		2.65	%		2.23	%		4.35	%
Tactical Allocation Fund Linked Benchmark (reflects no deduction for fees, expenses or taxes)		5.98	%		8.16	%		5.82	%

The S&P 500® Index is a free-float adjusted market capitalization-weighted index of 500 of the largest U.S. companies. The index is calculated on a total-return basis with dividends reinvested. The Bloomberg Barclays U.S. Aggregate Bond Index measures the U.S. investment grade fixed rate bond market. The index is calculated on a total-return basis. The Tactical Allocation Fund Linked Benchmark consists of 45% Russell 1000® Growth Index (a market capitalization-weighted index of growth-oriented stocks of the 1,000 largest companies in the Russell Universe, which comprises the 3,000 largest U.S. companies, calculated on a total return basis with dividends reinvested), 15% MSCI EAFE® Index (a free float-adjusted market capitalization-weighted index that measures developed foreign market equity performance, excluding the U.S. and Canada, calculated on a total return basis with net dividends reinvested), and 40% Bloomberg Barclays U.S. Aggregate Bond Index (an index that measures the U.S. investment grade fixed rate bond market, calculated on a total return basis). Performance of the Tactical Allocation Fund Linked Benchmark prior to September 7, 2016 represents an allocation consisting of 50% S&P 500® Index and 50% Bloomberg Barclays U.S. Aggregate Bond Index. The indexes are unmanaged and not available for direct investment.

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. After-tax returns are shown only for Class A Shares; after-tax returns for other classes will vary. Actual after-tax returns depend on the investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities. In certain cases, the Return After Taxes on Distributions and Sale of Fund Shares for a period may be higher than other return figures for the same period. This will occur when a capital loss is realized upon the sale of fund shares and provides an assumed tax benefit that increases the return.

Management

The fund’s investment adviser is Virtus Investment Advisers, Inc. (“VIA”).

The fund’s subadvisers are Duff & Phelps Investment Management Co. (“Duff & Phelps”) (international equity portion), Kayne Anderson Rudnick Investment Management, LLC (“KAR”) (domestic equity portion) and Newfleet Asset Management, LLC (“Newfleet”) (fixed income portion), each an affiliate of VIA.

Portfolio Managers

David L. Albrycht, CFA, President and Chief Investment Officer at Newfleet. Mr. Albrycht has served as a Portfolio Manager of the fund since 2012.

Frederick A. Brimberg, Senior Managing Director and International Equity Portfolio Manager at Duff & Phelps, is the manager of the fund. Mr. Brimberg has served as the Portfolio Manager of the fund since 2012.

Doug Foreman, CFA, Chief Investment Officer at KAR. Mr. Foreman has served as a Portfolio Manager of the fund since September 2016.

Purchase and Sale of Fund Shares

Minimum initial investments applicable to Class A, Class C and Class T Shares:

•

$2,500, generally

•

$100 for Individual Retirement Accounts (IRAs), systematic purchase or exchange accounts

•

No minimum for defined contribution plans, asset-based fee programs, profit-sharing plans or employee benefit plans

Minimum additional investments applicable to Class A, Class C and Class T Shares:

•

$100, generally

•

No minimum for defined contribution plans, asset-based fee programs, profit-sharing plans or employee benefit plans.

In general, you may buy or sell shares of the fund by mail or telephone on any business day. You also may buy and sell shares through a financial advisor, broker-dealer or other financial intermediary.

Taxes

The fund’s distributions are taxable to you as either ordinary income or capital gains, except when your investment is through a tax-deferred arrangement, such as a 401(k) plan or an individual retirement account. Such tax-deferred arrangements may be taxed later upon withdrawal of monies from those arrangements.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the fund through a broker-dealer or other financial intermediary (such as a bank), the fund and its related companies 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 financial advisor to recommend the fund over another investment. Ask your financial advisor or visit your financial intermediary’s Web site for more information.

Virtus Mutual Funds
P.O. Box 9874
Providence, RI 02940-8074

8445

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