Dimensional Converted ETFs to Mutual Funds

Investors in three Dimensional funds will see lower management fees starting in November.

Updated on Oct. 5, 2026 in Investing

Isometric editorial illustration of ball bearings pouring into glass containers, representing the merger of financial assets into mutual funds. — Dimensional Fund Advisors has completed the conversion of three ETFs into mutual fund share classes, aiming to lower management fees and enhance tax efficiency for investors. AI Illustration. Upload story photo >

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Dimensional Fund Advisors completed the merger of three ETFs into existing mutual fund share classes on October 2, 2026. This process combined $100 billion in ETF assets with $150 billion in mutual funds to optimize management efficiency.

Why it matters

The transition and concurrent fee restructuring aim to improve tax efficiency and reduce costs for long-term investors. These changes follow a broader effort by the firm to align portfolio management with tax-conscious strategies.

Dimensional is reducing management fees by 9% on an asset-weighted basis effective November 1, 2026. The move affects three funds, including those now featuring expense ratios of 0.17%, 0.25%, and 0.26%.

The players

Dimensional Fund Advisors

An investment firm that manages institutional and retail assets through evidence-based strategies and mutual funds.

The details

The conversion allows these funds to operate as share classes of mutual funds while retaining their original ticker symbols. Managers utilize tax-loss harvesting by selling underperforming stocks to offset capital gains, a strategy applied to the U.S. Small Cap and U.S. Targeted Value funds starting in July 2026. These structural adjustments aim to minimize federal income tax burdens for investors while streamlining operational costs.

July 16, 2026: Tax minimization strategies began for DFAS and DFAT.
September 25, 2026: Five other ETFs completed their conversion process.
October 2, 2026: The three subject ETFs merged into mutual funds.
November 1, 2026: New lower management fees take effect.

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Money Landscape

This move follows the regulatory approval granted in 2025 that allowed firms to implement share classes of ETFs. It represents a broader shift toward consolidating assets into mutual fund structures to enhance tax efficiency for long-term investors.

Investors currently holding these funds should monitor their account statements for the fee adjustments occurring on November 1, 2026. Review your tax-advantaged and taxable account holdings with a financial professional to determine if these changes align with your long-term goals.

The takeaway

These fund conversions demonstrate a move toward lower costs and increased tax efficiency through mutual fund consolidation. Check your recent statements for updated expense ratios to ensure your portfolio costs remain aligned with your financial plan.