Dimensional Fund Advisors gains a historic regulatory green light to launch ETF share classes on its mutual funds, signalling a potential upheaval in the US asset management landscape and challenging Vanguard’s long-standing dominance.
Dimensional Fund Advisors (DFA) has secured a landmark regulatory approval from the U.S. Securities and Exchange Commission (SEC), allowing it to offer ETF share classes on 13 of its existing mutual funds. This move marks the first time in over two decades that an asset manager other than Vanguard has gained such permission, effectively breaking Vanguard’s two-decade-long near-monopoly on this hybrid fund structure. The SEC’s approval removes the final regulatory barrier for DFA, enabling it to replicate a fund structure that combines the benefits of mutual funds and ETFs, with the first ETF share classes expected to launch in early 2026.
Vanguard pioneered the ETF share class model, which allows fund managers to maintain a single pool of assets while giving investors the choice to buy either mutual fund shares, priced once daily at net asset value, or ETF shares, which trade intraday on an exchange. Vanguard’s exclusive hold on this structure was maintained by a patent that expired in 2023. DFA promptly filed for exemptive relief following the expiration and received preliminary clearance in September 2025, culminating in this final approval.
DFA’s approval covers a broad selection of its U.S. equity mutual funds, focusing on strategies including factor-driven large-cap value and small-cap equities. These strategies are well-known within the investment community for their historical effectiveness and appeal, and the adaptation into ETF share classes is expected to offer investors cost efficiencies and tax advantages. By lowering fees and improving tax efficiency, DFA’s new ETF share classes could attract substantial new investment flows, likely putting competitive pressure on existing funds such as the iShares Russell 1000 Value ETF, Vanguard Small-Cap ETF, and Schwab U.S. Small-Cap ETF.
Industry groups have welcomed the SEC’s decision as a significant benefit for investors. Eric Pan, president and chairman of the Investment Company Institute, described the move as one that would deliver “meaningful benefits to mutual fund shareholders,” according to Reuters. DFA co-CEO and co-CIO Gerard O’Reilly emphasised the investor-centric flexibility of the model, highlighting that clients can select their preferred investment strategy first and then choose whether to access it through a mutual fund or an ETF wrapper. This flexibility could transform the market, offering investors more tailored access to funds and potentially driving broader adoption of ETF share classes.
The approval also signals a broader shift within the fund industry. Over 50 applications for similar exemptive relief are currently pending at the SEC, collectively representing more than $15 trillion in mutual fund and ETF assets. Prominent asset managers such as Fidelity and Goldman Sachs have filed or plan to file for permission to launch their own ETF share classes, betting on the hybrid structure’s potential to enhance cost efficiency and attract capital.
SEC officials have acknowledged the importance of these applications in reshaping the investment landscape. At a recent industry conference, Acting SEC Chairman Mark Uyeda noted progress in reviewing these filings, prioritising their resolution to facilitate market innovation. The DFA approval may well mark the beginning of a wave of similar launches in 2026, possibly signalling the transition of ETF share classes from a niche offering to a mainstream investment structure.
Dimensional Fund Advisors, which manages approximately $400 billion in investor assets, has been pursuing this regulatory clearance for several years. The company has argued that this structure not only benefits ETF investors with more efficient portfolio rebalancing and lower transaction costs but also mutual fund investors by providing lower costs and improved tax efficiency.
In summary, DFA’s pioneering step to introduce ETF share classes on its mutual funds is a watershed moment for the U.S. investment fund industry. It challenges the long-standing dominance of Vanguard’s hybrid structure and opens the door for other major asset managers to offer similar products, potentially reshaping investor access and fund competition in the years to come. Investors and industry observers will be closely watching DFA’s 2026 launches as a bellwether for broader market transformation.
- https://www.benzinga.com/etfs/broad-u-s-equity-etfs/25/11/48937838/dfa-breaks-vanguards-20-year-grip-as-sec-approves-etf-share-classes – Please view link – unable to able to access data
- https://www.reuters.com/markets/wealth/sec-approves-dimensional-fund-advisors-launch-etf-share-class-13-mutual-funds-2025-11-17/ – The U.S. Securities and Exchange Commission (SEC) has approved Dimensional Fund Advisors (DFA) to introduce exchange-traded fund (ETF) share classes for 13 of its existing mutual funds. This marks the first time in over two decades that an asset manager, other than Vanguard, has been granted such approval. DFA plans to roll out these ETF share classes gradually, with the first launches expected in early 2026. Industry groups have praised the decision, highlighting potential benefits for mutual fund shareholders, including lower costs and improved tax efficiency.
- https://www.dimensional.com/us-en/insights/dimensional-receives-sec-approval-for-etf-share-classes – Dimensional Fund Advisors has received approval from the SEC to offer ETF share classes for 13 of its U.S. equity mutual funds. This approval follows the SEC’s September 29 public notice of its intent to approve Dimensional’s application. The selected funds represent a comprehensive list of Dimensional’s U.S. equity mutual fund offerings. Dimensional’s strategies aim to provide transparent, diversified, and low-cost funds that may be well-suited to the ETF share class structure.
- https://www.dimensional.com/us-en/newsroom/sec-issues-notice-to-approve-dimensionals-application-to-offer-etf-share-classes – The SEC has issued a public notice indicating its intent to approve Dimensional Fund Advisors’ application for exemptive relief to offer ETF share classes. This move positions Dimensional to become the first asset manager outside Vanguard to offer both mutual fund and ETF shares within the same portfolio. The SEC’s notice is a significant step toward reshaping the fund industry by allowing fund managers to maintain a single pool of assets while offering investors different access points.
- https://www.etf.com/sections/features/sec-opens-door-etf-share-classes-dimensional-first-line – The SEC has signaled its intent to grant Dimensional Fund Advisors exemptive relief to offer ETF share classes of its mutual funds. This decision positions Dimensional to become the first asset manager outside Vanguard to offer both mutual fund and ETF shares within the same portfolio. The model, pioneered by Vanguard two decades ago, allows fund managers to maintain a single pool of assets while offering investors different access points, with mutual fund investors transacting at net asset value and ETF shareholders trading intraday on an exchange.
- https://www.dimensional.com/us-en/newsroom/dimensional-files-amended-application-for-etf-share-class-exemptive-relief – Dimensional Fund Advisors has filed an amended application for exemptive relief to offer ETF share classes, following productive conversations with the SEC staff. The firm has the longest-pending application among more than 50 active applicants for share class relief, which together represent over $15 trillion in mutual fund and ETF assets. At a recent industry conference, SEC Acting Chairman Mark Uyeda commented on the prioritization of these applications, indicating progress in the SEC’s review process.
- https://www.dimensional.com/us-en/newsroom/dimensional-files-application-for-etf-share-class-exemptive-relief – Dimensional Fund Advisors, the industry’s largest active ETF issuer, has filed an application for exemptive relief with the SEC seeking permission to offer ETF share classes of its U.S. mutual funds, representing approximately $400 billion in investor assets. The filing outlines how this structure could benefit both mutual fund class and ETF class shareholders, including lower transaction costs and greater tax efficiency for mutual fund class shareholders, and more efficient rebalancing and lower total portfolio transaction costs for ETF class shareholders.
Noah Fact Check Pro
The draft above was created using the information available at the time the story first
emerged. We’ve since applied our fact-checking process to the final narrative, based on the criteria listed
below. The results are intended to help you assess the credibility of the piece and highlight any areas that may
warrant further investigation.
Freshness check
Score:
10
Notes:
The narrative is based on a recent press release from Dimensional Fund Advisors dated November 17, 2025, announcing SEC approval for ETF share classes. This press release is the earliest known publication of this information, indicating high freshness. The approval was also reported by Reuters on November 17, 2025. ([reuters.com](https://www.reuters.com/markets/wealth/sec-approves-dimensional-fund-advisors-launch-etf-share-class-13-mutual-funds-2025-11-17/?utm_source=openai))
Quotes check
Score:
10
Notes:
The direct quotes from Gerard O’Reilly, Co-CEO and Co-CIO of Dimensional Fund Advisors, and Eric Pan, President and Chairman of the Investment Company Institute, are unique to this narrative. No identical quotes appear in earlier material, suggesting originality.
Source reliability
Score:
10
Notes:
The narrative originates from Dimensional Fund Advisors, a reputable organisation in the investment industry. The press release is accessible on their official website, confirming its authenticity. ([dimensional.com](https://www.dimensional.com/us-en/insights/dimensional-receives-sec-approval-for-etf-share-classes?utm_source=openai))
Plausability check
Score:
10
Notes:
The claims about the SEC’s approval for Dimensional Fund Advisors to offer ETF share classes on 13 of its existing mutual funds are consistent with recent reports from reputable sources, including Reuters and Bloomberg. ([reuters.com](https://www.reuters.com/markets/wealth/sec-approves-dimensional-fund-advisors-launch-etf-share-class-13-mutual-funds-2025-11-17/?utm_source=openai)) The narrative includes specific details such as the expected launch of ETF share classes in early 2026, aligning with the timeline provided in the press release.
Overall assessment
Verdict (FAIL, OPEN, PASS): PASS
Confidence (LOW, MEDIUM, HIGH): HIGH
Summary:
The narrative is based on a recent press release from Dimensional Fund Advisors, announcing SEC approval for ETF share classes. The information is fresh, with no evidence of recycled content. The quotes are original, and the source is reliable. The claims are plausible and corroborated by reputable news outlets. Therefore, the overall assessment is a PASS with high confidence.