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DFAU vs IWB: Differences, Returns & Fees

DFAU and IWB hold 80% of their weight in the same names, and DFAU returned +17.2% over the year. Net assets: $12.4bn on Jul 31, 2026 for Dimensional US Core Equity Market ETF, and $49.6bn on Oct 9, 2026 for iShares Russell 1000 ETF.

DFAU costs 0.03 points a year less; their one-year returns differ by 0.6 points; IWB is 3.9 times larger.

DFAU vs IWB: Differences, Returns & Fees
DFAUIWB
Expense ratio0.12%0.15%
Net assets, as of Jul 31, 2026$12.4bn$48.3bn
Total return, 1 year+17.2%+16.6%
What it tracksNo index, actively managedRussell 1000 Index
Holdings in common80%
Top ten holdings, share of the fund33.7%36.1%

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

+17.2%
DFAU total return, 1 year
+16.6%
IWB total return, 1 year
0.12%
DFAU expense ratio
0.15%
IWB expense ratio

What they hold in common

By the books each fund has filed, DFAU and IWB hold 80% 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

80% in common

Positions both hold, largest shared weight first
Holding DFAU IWB
NVIDIA CORPORATION 6.74% 7.44%
APPLE INC. 6.45% 6.77%
MICROSOFT CORPORATION 5.09% 5.53%
AMAZON.COM, INC. 3.59% 3.54%
ALPHABET INC. 2.74% 2.85%
BROADCOM INC. 2.35% 2.34%
ALPHABET INC. 2.28% 2.30%
META PLATFORMS, INC. 1.79% 2.20%
MICRON TECHNOLOGY, INC. 1.39% 1.61%
JPMORGAN CHASE & CO. 1.27% 1.24%
BERKSHIRE HATHAWAY INC. 1.11% 1.34%
TESLA, INC. 1.08% 1.56%
Only in DFAU
ELI LILLY AND COMPANY 1.24%
APPLIED MATERIALS, INC. 0.47%
GENERAL ELECTRIC COMPANY 0.44%
TEXAS INSTRUMENTS INCORPORATED 0.32%
LINDE PUBLIC LIMITED COMPANY 0.28%
SEAGATE TECHNOLOGY HOLDINGS PUBLIC LIMITED COMPANY 0.27%
THE TJX COMPANIES, INC. 0.24%
MCDONALD'S CORPORATION 0.23%
Only in IWB
ELI LILLY 1.31%
APPLIED MATERIAL INC 0.56%
GE AEROSPACE 0.44%
TEXAS INSTRUMENT INC 0.36%
LINDE PLC 0.31%
EATON PLC 0.23%
MCDONALDS CORP 0.23%
WELLTOWER 0.23%

Check overlap with more funds →

On the same fields

DFAU
Dimensional US Core Equity Market ETF
IWB
iShares Russell 1000 ETF
Where it sits Stock ETF Stock ETF
Issuer Dimensional iShares
What it is Actively managed Tracks the Russell 1000
Total return, 1 year +17.2% +16.6%
Its benchmark over the same days +16.7% (IWV) +16.8% (VONE)
Gap to its benchmark +0.5 pts vs IWV −0.1 pts vs VONE
Expense ratio 0.12% 0.15%
Already in the S&P 500 86.8% 91.7%
Holdings 2192 1025
Net assets, DFAU as of Jul 31, 2026 and IWB as of Oct 9, 2026 $12.4bn $49.6bn

DFAU and IWB 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 IWB

IWB tracks the Russell 1000. Over the year to Oct 9, 2026 it returned +16.6% with distributions reinvested, against +16.8% for its benchmark, the Russell 1000 Index. The prospectus expense ratio is 0.15% a year. By its holdings published by its issuer for Oct 9, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1,025 positions, with the top ten at 36.1%.

Questions people ask

Which returned more over the last year, DFAU or IWB?
In the year to Oct 9, 2026, with distributions reinvested, DFAU returned +17.2% and IWB +16.6%.
Which is cheaper, DFAU or IWB?
DFAU is cheaper, by 0.03 percentage points a year. That is about $3 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do DFAU and IWB overlap with the S&P 500?
By their latest filed holdings, 87% of DFAU and 92% of IWB by weight is stocks the S&P 500 already holds.
Other comparisons
DFAU vs QUALDFAU vs DIADFAU vs SCHBDFAU vs DYNFIWB vs IWVIWB vs OEFDFUS vs IWBIWB vs RECS
DFAU on its own →IWB 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 ↗IWB filings on SEC EDGAR ↗IWB prospectus with the expense ratio (SEC) ↗iShares page for IWB ↗

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 IWB, data as of Oct 9, 2026. https://etfiq.com/compare/any/dfau-vs-iwb

Open data

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