DFAU vs FSST
Dimensional US Core Equity Market ETF vs Fidelity Sustainable US Equity ETF
Which is better, DFAU or FSST?
Nearly the same fund. DFAU costs less.
DFAU has a lower expense ratio. DFAU led over the full window, FSST over 1Y. The two have moved almost in lockstep, correlation 0.98. DFAU is less concentrated, with 34.0% of the fund in its ten largest positions against 43.8%.
MarketXLS is not an investment adviser. This comparison is generated automatically from market data and is for information only. A Best mark means the better reading on that one measure, not a recommendation to buy.
Side-by-Side Comparison
| Metric | DFAU | FSST |
|---|---|---|
| Expense Ratio | 0.12%Best | 0.59% |
| AUM | $13.1B | $13M |
| Dividend Yield | 0.90% | 1.55% |
| Holdings | 2,124 | 90 |
| Volatility (annualized) | 16.0%Best | 17.4% |
| Max Drawdown | -23.6%Best | -26.3% |
| $10,000 over 4.4 years | $16,342Best | $16,169 |
| Top 10 Weight | 34.0%Best | 43.8% |
| Fund Family | Dimensional | Fidelity Investments (US) |
| Category | Equity | Equity |
| Style | Large Cap Blend | Large Cap Blend |
| Inception | Nov 17, 2020 | Jun 15, 2021 |
Not shown on this pair: YTD Return, 1Y Return, 3Y Return (annualized), 5Y Return (annualized).
The two price series end 335 days apart, so a return over any period would be measuring two different stretches of market. Those rows are withheld. DFAU has data through Oct 14, 2026 and FSST through Nov 13, 2025.
Volatility and max drawdown, and the $10,000 over 4.4 years row, are measured over the window both funds cover: Jun 17, 2021 to Nov 13, 2025 (4.4 years).
Risk: Volatility and Drawdowns
FSST has been the more volatile fund, with annualized monthly volatility of 17.4% compared with 16.0% for DFAU. Lower volatility generally means a smoother ride, though it often comes with lower long-run returns.
The deepest peak-to-trough decline in our data was -23.6% for DFAU and -26.3% for FSST. Drawdown depth is what each fund did in the worst stretch of the window measured above.
The two funds' monthly returns correlate at 0.98. They move almost in lockstep, so holding both mostly duplicates the same exposure.
Fees and Cost Over Time
DFAU charges 0.12% per year while FSST charges 0.59%. On a $10,000 position that is $12 vs $59 annually, a gap of $47 per year that compounds over a long holding period. On income, DFAU currently yields 0.90% against 1.55% for FSST.
Holdings Overlap
41.9% of DFAU's money is in holdings FSST also owns. 88.8% of FSST's money is in holdings DFAU also owns.
Most of FSST is already inside DFAU. Owning both mostly buys the same companies twice.
The two holdings books were reported 411 days apart, DFAU as of Sep 15, 2026 and FSST as of Jul 31, 2025, so some of the difference between them is the time between the two reports rather than the funds.
75 positions in common, counted across the 2,205 positions we hold weights for in DFAU and 94 in FSST, against full books of 2,124 and 90.
What only one of them owns
Our book lists 12 positions for FSST that do not appear in our book for DFAU (6.7% of the fund), and 1,088 for DFAU that do not appear in FSST (55.5%).
Some of those will be the same company recorded under a different code in one of the two books, so the real difference in what you would own is no larger than this and may be smaller. We do not name the individual positions here for that reason.
Top Shared Holdings
| Stock | Weight in DFAU | Weight in FSST | Difference |
|---|---|---|---|
| NVDANVIDIA Corporation | 6.99% | 8.95% | 1.96% |
| AAPLApple, Inc | 6.81% | 5.57% | 1.24% |
| MSFTMicrosoft Corp | 5.31% | 7.00% | 1.69% |
| AMZNAmazon.Com Inc | 3.34% | 5.21% | 1.87% |
| GOOGLAlphabet Inc Cl A | 2.56% | 3.89% | 1.33% |
| METAMeta Platforms Inc Class A | 1.87% | 4.37% | 2.50% |
| LLYEli Lilly & Co. | 1.18% | 2.63% | 1.45% |
| JPMJpmorgan Chase & Co | 1.27% | 2.43% | 1.16% |
| AVGOBroadcom Inc | 2.15% | 0.37% | 1.78% |
| MAMastercard Inc. Cl A | 0.62% | 1.75% | 1.13% |
88.8% of FSST is already inside DFAU.
You probably hold more than these two. Add the rest and see how much of the whole book is the same companies twice.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, DFAU or FSST?
DFAU has an expense ratio of 0.12% while FSST charges 0.59%. DFAU is the cheaper option, by $47 a year on a $10,000 investment.
Which is riskier, DFAU or FSST?
FSST has been the more volatile fund at 17.4% annualized versus 16.0% for DFAU. Worst drawdown: DFAU -23.6% vs FSST -26.3%.
Should I hold both DFAU and FSST?
DFAU and FSST have a monthly-return correlation of 0.98, so they move almost identically. What is left to separate them is the fee and the index each one tracks. This is information, not a recommendation.
What is the holdings overlap between DFAU and FSST?
88.8% of FSST's money is in holdings DFAU also owns. 88.8% of FSST's is in holdings DFAU also owns. They hold 75 positions in common, counted across the 2,205 positions we hold weights for in DFAU and 94 in FSST.
Which pays a higher dividend, DFAU or FSST?
DFAU yields 0.90% while FSST yields 1.55%, so FSST currently pays the higher dividend yield.
Is FSST better than DFAU?
DFAU has a lower expense ratio. DFAU led over the full window, FSST over 1Y. The two have moved almost in lockstep, correlation 0.98. DFAU is less concentrated, with 34.0% of the fund in its ten largest positions against 43.8%. Which one suits a particular account depends on what it is for. This is information, not a recommendation.