Oppenheimer

Russell 2000^®Dynamic Multifactor ETF

Cusip

68386C112

BATS BZX Exchange, Inc.

OMFS

Summary Prospectus November 8, 2017

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, Annual Report and other information about the Fund online at https://www.oppenheimerfunds.com/investors/funds/etf. You can also get this information at no cost by calling 1.800.225.5677 or by sending an email request to: info@oppenheimerfunds.com.

The Fund’s prospectus and Statement of Additional Information (“SAI”), both dated November 8, 2017, are incorporated by reference into this Summary Prospectus. You can access the Fund’s prospectus and SAI at https://www.oppenheimerfunds.com/investors/funds/etf. The Fund’s prospectus is also available from financial intermediaries who are authorized to sell Fund shares.

Investment Objective. Oppenheimer Russell 2000 Dynamic Multifactor ETF seeks to provide investment results that correspond generally, before fees and expenses, to the performance of the Russell 2000 OFI Dynamic Multifactor Index (the “Underlying Index”).

Fees and Expenses. The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund (“Shares”). You may also incur customary brokerage charges when buying or selling Fund Shares.

Annual Fund Operating Expenses

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


Management Fees						0.39%

Other Expenses*						0.00%

Total Annual Fund Operating Expenses						0.39%

*“Other Expenses” are based on estimated amounts for the current fiscal year.

Example. The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of the Shares at the end of those periods. This example assumes that the Fund provides a return of 5% a year and that operating expenses remain the same. This example does not include the brokerage commission that you may pay to buy and sell exchange-traded Shares of the Fund. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

	1 Year		3 Years
Oppenheimer Russell 2000 Dynamic Multifactor ETF	$40		$125

Portfolio Turnover. The Fund pays transaction costs, such as commissions, when it buys and sells securities or other instruments. A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when 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.

Principal Investment Strategies. The Fund seeks investment results that correspond generally, before fees and expenses, to the performance of the Underlying Index. Under normal circumstances, the Fund will invest at least 80% of its net assets, plus any borrowings for investment purposes, in securities of companies included in the Underlying Index. The Fund may invest up to 20% of its assets in certain index futures, options, options on index futures, swap contracts or other derivatives, as related to its Underlying Index and its component securities, other securities not included in the Underlying Index and cash and cash equivalents, including shares of money market funds advised by affiliates of the investment adviser, to the extent the investment adviser believes such investments will help the Fund track the Underlying Index.

The Underlying Index is constructed using a rules-based methodology by selecting equity securities from the Russell 2000 Index (the “Parent Index”), which measures the performance of 2,000 small-capitalization companies in the United States. The Underlying Index consists of one of four pre-determined factor configurations that emphasize a subset of five investment style factors, as described below. The factor configuration that comprises the Underlying Index will vary with different economic cycles and overall market conditions, as reflected in one of the following four categories: expansion, slowdown, contraction and recovery. The five investment style factors are:

Value. A company’s value factor score is based on an equally-weighted composite of cash flow yield, earnings yield, and sales to price ratio, calculated based on the company’s total market capitalization and information reported in the company’s most recent annual financial statement as of the last business day of the prior month.

Momentum. A company’s momentum factor score is based on historical total return over the 11 months ending on the last business day of the prior month.

Quality. A company’s quality factor score is based on an equally-weighted composite of return on assets, change in asset turnover, accruals, and leverage, calculated based on information reported in the company’s most recent annual financial statement as of the last business day of the prior month.

Low Volatility. A company’s volatility factor score is based on the standard deviation of weekly total returns to a company’s stock price over the trailing five years ending on the last business day of the prior month.

Size. A company’s size factor score is based on total market capitalization as of the last business day of the prior month.

To construct the Underlying Index, each constituent in the Parent Index is assigned a multi-factor score based on the extent to which the constituent exhibits greater characteristics of the relevant factors (for example, size and value), relative to the other constituents in the Parent Index. The multi-factor score is the product of the security’s individual factor scores, each of which is calculated using one or more measurements (for example, a size factor score is calculated from the issuer’s total market capitalization). An initial weight for each security is determined from the product of the security’s multi-factor score and its weight in the Parent Index. These weights are adjusted to ensure that each constituent and the Underlying Index as a whole satisfy certain constraints with respect to industry exposure, maximum security and minimum security weights, as compared to the Parent Index. With respect to each factor other than momentum, constraints regarding diversification and liquidity are also applied. Securities in the Parent Index are excluded from the Underlying Index if their relevant factor characteristics fall below an algorithmically-determined threshold, or if their adjusted weights fall below a certain de minimis amount. Finally, a maximum security weight limit is applied to ensure no security weight exceeds a fixed level. The current economic cycle/market condition category, which determines which factor configuration is applied, is derived from a rules-based methodology that relies on certain leading economic indicators and information regarding global risk appetite. The applicable category is provided to the Index Provider by OppenheimerFunds, Inc., an affiliate of the investment adviser (“OppenheimerFunds”) in the form of a data signal (the “Signal”).

As of September 30, 2017, the Underlying Index consisted of 1,220 component securities. The Underlying Index is rebalanced and reconstituted when the Signal changes, which may be as frequently as monthly, and when the factor configuration is rebalanced and reconstituted by Frank Russell Company (the “Index Provider”), which occurs semi-annually with respect to the expansion and contraction categories, and annually with respect to the recovery and slowdown categories. The Underlying Index is sponsored by the Index Provider, which is unaffiliated with the Fund and the investment adviser. The Index Provider publishes information regarding the market value of the Underlying Index. Since OppenheimerFunds provides the Signal to the Index Provider, OppenheimerFunds may be deemed a creator and sponsor of the Underlying Index.

The Fund’s intention is to replicate the constituent securities of the Underlying Index as closely as possible, and the investment adviser uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. When a replication strategy could have adverse consequences to Fund shareholders, however, the Fund may utilize a “representative sampling” strategy whereby the Fund would hold a significant number of the component securities of the Underlying Index, but may not track that index with the same degree of accuracy as would an investment vehicle replicating the entire index. The Fund does not try to outperform the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued.

The Fund will typically concentrate its investments in a particular industry or group of industries to approximately the same extent that its Underlying Index is concentrated, meaning that it will invest more than 25% of its net assets in that industry or group of industries.

The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of any collateral received).

Principal Risks. Like all investments, investing in the Fund entails risks, including the risk that you may lose part or all of the money you invest.

Value Securities Risk. Securities issued by companies that may be perceived as undervalued may fail to appreciate for long periods of time and may never realize their full potential value. The rules-based methodology of the Fund’s Underlying Index may be unsuccessful in creating an index that emphasizes undervalued securities.

Momentum Securities Risk. Securities that previously exhibited high momentum characteristics may not experience positive momentum or may experience more volatility than the market as a whole.

Quality Securities Risk. Securities included in the Underlying Index are deemed to be quality stocks pursuant to the Underlying Index’s methodology, but there is no guarantee that the past performance of these stocks will continue. Companies that issue these stocks may experience lower than expected returns or may experience negative growth, as well as increased leverage, resulting in lower than expected or negative returns to Fund shareholders. Many factors can affect a stock’s quality and performance, and the impact of these factors on a stock or its price can be difficult to predict.

Low Volatility Risk. Although subject to the risks of common stocks, low volatility stocks are seen as having a lower risk profile than the overall markets. However, a portfolio comprised of low volatility stocks may not produce investment exposure that has lower variability to changes in such stocks’ price levels. Low volatility stocks are likely to underperform the broader market during periods of rapidly rising stock prices. Although the Underlying Index was created to seek lower volatility than the Parent Index, there is no guarantee that this strategy will be successful.

Index Construction Risk. A stock included in the Underlying Index may not exhibit the factor trait or provide specific factor exposure for which it was selected, and consequently, the Fund’s holdings may not exhibit returns consistent with that factor trait.

Investment Approach Risk. The Underlying Index, and thus the Fund, seeks to provide exposure to investments based on the following factors: value, momentum, quality, low volatility and size, and to weight such factors based on changes in the Signal. There can be no assurance that doing so will enhance the Fund’s performance over time. It is expected that targeting exposure to such investment factors will detract from performance in some market environments, perhaps for extended periods. In such circumstances, while the weights allocated to particular targeted investment factors may be adjusted based on the changes in the Signal, the investment adviser will not adjust a Fund’s investment process to target different factors.

Concentration Risk. The Fund will typically concentrate in industries or groups of industries to approximately the same extent as its Underlying Index. The Fund may be adversely affected by the performance of the securities in a particular industry or group of industries and may be subject to increased price volatility and may be more susceptible to adverse economic, market, political or regulatory occurrences affecting that market, industry, group of industries, sector or asset class than may be the case for a fund that was not concentrated in a particular industry or group of industries.

Consumer Discretionary Sector Risk The Fund may invest a significant portion of its assets in securities of issuers in the consumer discretionary sector in order to track the Underlying Index’s allocation to that sector. The success of consumer product manufacturers and retailers is tied closely to the performance of the overall global economy, interest rates, competition and consumer confidence. Success depends heavily on disposable household income and consumer spending. Also, companies in the consumer discretionary sector may be subject to severe competition, which may have an adverse impact on their respective profitability. Changes in demographics and consumer tastes can also affect the demand for, and success of, consumer products and services in the marketplace.

Financial Services Sector Risk. The Fund may invest a significant portion of its assets in securities of issuers in the financial services sector in order to track the Underlying Index’s allocation to that sector. Performance of companies in the financial services sector may be adversely impacted by many factors, including, among others, changes in government regulations, economic conditions, and interest rates, credit rating downgrades, and decreased liquidity in credit markets. The impact of more stringent capital requirements and recent or future regulation of any individual financial company or of the financial services sector as a whole cannot be predicted. In recent years, cyber attacks and technology malfunctions and failures have become increasingly frequent in this sector and have caused significant losses to companies in this sector, which may negatively impact the Fund.

Industrials Sector Risk. The Fund may invest a significant portion of its assets in securities issued by companies in the industrials sector in order to track the Underlying Index’s allocation to that sector. The industrials sector includes companies engaged in the manufacture and distribution of capital goods, such as those used in defense, construction and engineering, companies that manufacture and distribute electrical equipment and industrial machinery and those that provide commercial and transportation services and supplies. Because as currently constituted the industrials sector represents a significant portion of the Underlying Index, the Fund will be sensitive to changes in, and its performance may depend to a greater extent on, the overall condition of the industrials sector. Companies in the industrials sector may be adversely affected by changes in government regulation, world events and economic conditions. In addition, companies in the industrials sector may be adversely affected by environmental damages, product liability claims and exchange rates.

Small Capitalization Stock Risk. Small capitalization companies (including those trading as ADRs, GDRs, EDRs and Global Shares) may have an unproven or narrow technological base and limited product lines, distribution channels, markets and financial resources. Small capitalization companies also may be dependent on entrepreneurial management, making the companies more susceptible to certain setbacks and reversals. Securities of small capitalization companies may also be more sensitive to changes in the economy, such as changes in the level of interest rates. As a result, the securities of small capitalization companies may be subject to more abrupt or erratic price movements than securities of larger companies, may have limited marketability, and may be less liquid than securities of companies with larger capitalizations.

Increased Volatility Risk. Increased volatility may result from increased cash flows to the Fund and other market participants that continuously or systematically buy large holdings of small or medium capitalization companies, which can drive prices up and down more dramatically. Additionally, the announcement that a security has been added to a widely followed index or benchmark may cause the price of that security to increase. Conversely, the announcement that a security has been deleted from a widely followed index or benchmark may cause the price of that security to decrease.

Stock Market Risk. Stock market risk is the risk that broad movements in financial markets will adversely affect the price of the Fund’s investments, regardless of how well the companies in which the Fund invests perform. There is also a risk that the price of one or more of the securities or other instruments in the Fund’s portfolio will fall.

Market Trading Risk. An investment in the Shares may present secondary market trading risks, including the inability to sell your Shares in the event of a severe market disruption, or the inability to buy and sell Shares at a price that reflects the actual value of the Fund’s portfolio. Although it is expected that Shares will remain listed for trading on BATS BZX Exchange, Inc. (the “Exchange”), disruptions to creations and redemptions, the existence of market volatility or lack of an active trading market for the Shares (including through a trading halt), as well as other factors, may result in the Shares trading significantly above (at a premium to) or below (at a discount to) the Fund’s net asset value (“NAV”) (calculated at the end of the day), or the intraday value of the Fund’s published basket of portfolio securities (i.e., the “intraday indicative value” or “IIV”). During such periods, you may be unable to sell your Shares or may incur significant losses if you sell your Shares. In addition, during such periods, such as a “flash crash,” different investment strategies or techniques, such as stop loss orders to sell your Shares, may not work as intended and may result in significant losses.

Non-Correlation Risk. The Fund’s return may not match the return of the Underlying Index for a number of reasons. For example, the Fund incurs a number of operating expenses, while the Underlying Index does not. Tracking error may also occur because of differences between the securities or other instruments held in the Fund’s portfolio and those included in the Underlying Index, pricing differences, transaction costs, the Fund’s holding of uninvested cash, differences in the timing of the accrual of dividends or interest, tax gains or losses, changes to the Underlying Index, or the need to meet various new or existing regulatory requirements. This risk may be heightened during times of increased market volatility or other unusual market conditions.

Calculation Methodology Risk. The Underlying Index relies on various sources of information to assess the criteria of issuers included in the Underlying Index (or its Parent Index), including information that may be based on assumptions and estimates. Neither the Fund nor the investment adviser can offer assurances that the Underlying Index’s calculation methodology or sources of information will provide an accurate assessment of included issuers.

Operational Risk. The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and the investment adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Passive Investment Risk. The Fund is not actively managed and therefore the investment adviser does not have discretion to select an Underlying Index’s components or change an Underlying Index methodology. The Fund generally does not attempt to take defensive positions under any market conditions, including declining markets. A general decline in the market segments included in the Underlying Index may adversely affect the Fund’s performance.

Authorized Participant Concentration Risk. Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of intermediaries that act as authorized participants and none of these authorized participants is or will be obligated to engage in creation or redemption transactions. To the extent that these intermediaries exit the business or are unable to or choose not to proceed with creation and/or redemption orders with respect to the Fund and no other authorized participant is able to step forward to create or redeem Shares, Shares may trade at a discount to NAV or IIV, and the Fund may possibly face delisting.

Securities Lending Risk. Securities lending involves the risk that a Fund may lose money because the borrower of the Fund’s loaned securities fails to return the securities in a timely manner or at all and the securities lending agent fails to fulfill its guarantee to the Fund against that risk. A Fund could also lose money in the event of a decline in the value of the collateral provided for loaned securities or a decline in the value of any investments made with cash collateral. A Fund’s securities lending activities could also trigger adverse tax consequences for the Fund and affect the amount, timing and character of distributions to the shareholders.

Portfolio Turnover Risk. Because the Fund is rebalanced when the Signal changes, which may be as frequently as monthly, and reconstituted when factor scores are recalculated by the Index Provider, which occurs semi-annually or annually, the Fund may experience portfolio turnover in excess of 100%. Portfolio turnover may involve the payment by the Fund of brokerage and other transaction costs on the sale of securities, as well as on the investment of the proceeds in other securities. The greater the portfolio turnover, the greater the transaction costs to the Fund, which could have an adverse effect on the Fund’s total rate of return, and the more likely the Fund is to generate capital gains that must be distributed to shareholders as taxable income. Funds that track dynamic multi-factor indices may experience higher turnover than other multi-factor funds that do not track such indices.

An investment in the Fund is not a deposit of any bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

The Fund’s Past Performance. There is no performance information presented for the Fund because the Fund has not commenced operations prior to the date of this Prospectus.

Investment Adviser. OFI Advisors, LLC (the “Manager”) is the Fund’s investment adviser.

Portfolio Managers. Frank Vallario and Sean P. Reichert have been Vice Presidents and portfolio managers of the Fund since its inception.

Purchase and Sale of Fund Shares. Unlike conventional mutual funds, the Fund issues and redeems Shares on a continuous basis, at NAV, only in Creation Units consisting of 50,000 Shares. The Fund generally will issue or redeem Creation Units in return for a designated portfolio of securities (and an amount of cash) that the Fund specifies each day. Individual Shares may only be purchased and sold on the Exchange through a broker-dealer. Shares will trade at market prices rather than at NAV or IIV. As such, Shares may trade at a price greater than NAV or IIV (premium) or less than NAV or IIV (discount).

Taxes. The Fund’s distributions generally are taxable to you as ordinary income, capital gains, or some combination of both, unless you are investing through a tax-deferred arrangement, in which case your distributions generally will be taxed when withdrawn from the tax-deferred account.

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), OppenheimerFunds Distributor, Inc. may pay the intermediary for the sale of Shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other financial intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

For More Information About Oppenheimer Russell 2000 Dynamic Multifactor ETF

You can access the Fund’s prospectus and SAI at https://www.oppenheimerfunds.com/investors/funds/etf. You can also request additional information about the Fund or your account:

Telephone:	Call OppenheimerFunds Services toll-free: 1.800.CALL OPP (1.800.225.5677)

Mail:	For requests by mail: OppenheimerFunds Services P.O. Box 5270 Denver, Colorado 80217-5270	For requests by courier or express mail: OppenheimerFunds Services 12100 East Iliff Avenue Suite 300 Aurora, Colorado 80014

Internet:	You may request documents, and read or download certain documents at www.oppenheimerfunds.com

PR4842.001.1117