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DFAU vs OEF: Differences, Returns & Fees

DFAU and OEF hold 58% of their weight in the same names. Net assets: $12.4bn on Jul 31, 2026 for Dimensional US Core Equity Market ETF, and $20.8bn on Oct 9, 2026 for iShares S&P 100 ETF.

DFAU costs 0.08 points a year less; their one-year returns differ by 0.4 points; OEF is 1.6 times larger.

DFAU vs OEF: Differences, Returns & Fees
DFAUOEF
Expense ratio0.12%0.20%
Net assets, as of Jul 31, 2026$12.4bn$19.8bn
Total return, 1 year+17.2%+16.8%
What it tracksNo index, actively managedS&P 100
Holdings in common58%
Top ten holdings, share of the fund33.7%52.6%

Holdings in common uses holdings dated Jul 31, 2026 and Oct 9, 2026.

+17.2%
DFAU total return, 1 year
+16.8%
OEF total return, 1 year
0.12%
DFAU expense ratio
0.20%
OEF expense ratio

What they hold in common

By the books each fund has filed, DFAU and OEF hold 58% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated Jul 31, 2026 and Oct 9, 2026.

half

58% in common

Positions both hold, largest shared weight first
Holding DFAU OEF
NVIDIA CORPORATION 6.74% 11.11%
APPLE INC. 6.45% 9.84%
MICROSOFT CORPORATION 5.09% 7.96%
AMAZON.COM, INC. 3.59% 5.16%
ALPHABET INC. 2.74% 4.13%
BROADCOM INC. 2.35% 3.45%
ALPHABET INC. 2.28% 3.31%
META PLATFORMS, INC. 1.79% 3.17%
MICRON TECHNOLOGY, INC. 1.39% 2.33%
JPMORGAN CHASE & CO. 1.27% 1.77%
BERKSHIRE HATHAWAY INC. 1.11% 1.92%
TESLA, INC. 1.08% 2.16%
Only in DFAU
ELI LILLY AND COMPANY 1.24%
APPLIED MATERIALS, INC. 0.47%
GENERAL ELECTRIC COMPANY 0.44%
WESTERN DIGITAL CORPORATION 0.34%
TEXAS INSTRUMENTS INCORPORATED 0.32%
KLA CORPORATION 0.32%
LINDE PUBLIC LIMITED COMPANY 0.28%
SEAGATE TECHNOLOGY HOLDINGS PUBLIC LIMITED COMPANY 0.27%
Only in OEF
ELI LILLY 1.89%
APPLIED MATERIAL INC 0.81%
GE AEROSPACE 0.64%
TEXAS INSTRUMENT INC 0.52%
LINDE PLC 0.45%
MCDONALDS CORP 0.33%
ACCENTURE PLC CLASS A 0.26%
MEDTRONIC PLC 0.23%

Check overlap with more funds →

On the same fields

DFAU
Dimensional US Core Equity Market ETF
OEF
iShares S&P 100 ETF
Where it sits Stock ETF Stock ETF
Issuer Dimensional iShares
What it is Actively managed Tracks an index
Total return, 1 year +17.2% +16.8%
Its benchmark over the same days +16.7% (IWV) not published
Gap to its benchmark +0.5 pts vs IWV not available
Expense ratio 0.12% 0.20%
Already in the S&P 500 86.8% 99.9%
Holdings 2192 102
Net assets, DFAU as of Jul 31, 2026 and OEF as of Oct 9, 2026 $12.4bn $20.8bn

DFAU and OEF on the fields both publish, as of Oct 9, 2026. Source: ETFIQ.

About DFAU

DFAU is actively managed and tracks no index. The prospectus expense ratio is 0.12% a year. By its holdings filed for Jul 31, 2026, 87% of the fund by weight is stocks the S&P 500 also holds, across 2,192 positions, with the top ten at 33.7%.

Over the year to Oct 9, 2026 it returned +17.2% with distributions reinvested, against +16.7% for its benchmark, the Russell 3000 Index.

About OEF

OEF tracks an index. Over the year to Oct 9, 2026 it returned +16.8% with distributions reinvested. The prospectus expense ratio is 0.20% a year. By its holdings published by its issuer for Oct 9, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 102 positions, with the top ten at 52.6%.

Questions people ask

Which returned more over the last year, DFAU or OEF?
In the year to Oct 9, 2026, with distributions reinvested, DFAU returned +17.2% and OEF +16.8%.
Which is cheaper, DFAU or OEF?
DFAU is cheaper, by 0.08 percentage points a year. That is about $8 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do DFAU and OEF overlap with the S&P 500?
By their latest filed holdings, 87% of DFAU and 100% of OEF by weight is stocks the S&P 500 already holds.
Other comparisons
DFAU vs RDVYDFAU vs DGRWDFAU vs IWBDFAU vs IVVOEF vs RECSOEF vs SCHKDSI vs OEFOEF vs USMC
DFAU on its own →OEF on its own →Hold both: look the portfolio through →Rankings →Standards and sources →
Where these figures came from
DFAU filings on SEC EDGAR ↗DFAU prospectus with the expense ratio (SEC) ↗Dimensional website ↗OEF filings on SEC EDGAR ↗OEF prospectus with the expense ratio (SEC) ↗iShares page for OEF ↗

ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Cite this pageCitation, APA and Markdown

ETFIQ, DFAU against OEF, data as of Oct 9, 2026. https://etfiq.com/compare/any/dfau-vs-oef

Open data

Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.