DFSU vs IWB: Differences, Returns & Fees

DFSU and IWB hold 64% of their weight in the same names, and IWB returned +16.6% over the year. Net assets: $2.3bn on Jul 31, 2026 for Dimensional US Sustainability Core 1 ETF, and $49.6bn on Oct 9, 2026 for iShares Russell 1000 ETF.

Both cost 0.15% a year; their one-year returns differ by 2.6 points; IWB is far larger, $48.3bn against $2.3bn.

Points (pts) are percentage points.

DFSU vs IWB: Differences, Returns & Fees
DFSUIWB
Expense ratio0.15%0.15%
Net assets, as of Jul 31, 2026$2.3bn$48.3bn
Total return, 1 year+14.0%+16.6%
What it tracksNo index, actively managedRussell 1000 Index
Holdings in common64%
Top ten holdings, share of the fund32.0%36.1%

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

+14.0%
DFSU total return, 1 year
+16.6%
IWB total return, 1 year
0.15%
DFSU expense ratio
0.15%
IWB expense ratio

What they hold in common

By the books each fund has filed, DFSU and IWB hold 64% 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

64% in common

Positions both hold, largest shared weight first
Holding DFSU IWB
NVIDIA CORPORATION 6.46% 7.44%
APPLE INC. 6.31% 6.77%
AMAZON.COM, INC. 3.32% 3.54%
MICROSOFT CORPORATION 3.14% 5.53%
ALPHABET INC. 2.40% 2.85%
BROADCOM INC. 2.27% 2.34%
META PLATFORMS, INC. 3.09% 2.20%
ALPHABET INC. 1.96% 2.30%
JPMORGAN CHASE & CO. 1.62% 1.24%
JOHNSON & JOHNSON 0.98% 0.88%
VISA INC. 0.88% 0.91%
TESLA, INC. 0.71% 1.56%
Only in DFSU
ELI LILLY AND COMPANY 1.41%
GENERAL ELECTRIC COMPANY 0.59%
APPLIED MATERIALS, INC. 0.45%
THE TJX COMPANIES, INC. 0.30%
MCDONALD'S CORPORATION 0.27%
AMERIPRISE FINANCIAL, INC. 0.19%
MOODY'S CORPORATION 0.17%
ILLINOIS TOOL WORKS INC. 0.17%
Only in IWB
MICRON TECHNOLOGY 1.61%
BERKSHIRE HATHAWAY INC CLASS B 1.34%
ELI LILLY 1.31%
EXXONMOBIL HOLDINGS CORP 0.97%
COSTCO WHOLESALE CORP 0.58%
APPLIED MATERIAL INC 0.56%
CHEVRON 0.55%
GE AEROSPACE 0.44%

Check overlap with more funds →

On the same fields

DFSU
Dimensional US Sustainability Core 1 ETF
IWB
iShares Russell 1000 ETF
Where it sits Stock ETF Stock ETF
What it is Actively managed Tracks the Russell 1000
Total return, 1 year +14.0% +16.6%
Its benchmark over the same days +16.7% (IWV) +16.8% (VONE)
Gap to its benchmark −2.6 pts vs IWV −0.1 pts vs VONE
Expense ratio 0.15% 0.15%
Already in the S&P 500 81.1% 91.7%
Holdings 1940 1025
Net assets, DFSU as of Jul 31, 2026 and IWB as of Oct 9, 2026 $2.3bn $49.6bn

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

About DFSU

DFSU is actively managed and tracks no index. The prospectus expense ratio is 0.15% a year. By its holdings filed for Jul 31, 2026, 81% of the fund by weight is stocks the S&P 500 also holds, across 1,940 positions, with the top ten at 32.0%.

Over the year to Oct 9, 2026 it returned +14.0% 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. 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, DFSU or IWB?
In the year to Oct 9, 2026, with distributions reinvested, DFSU returned +14.0% and IWB +16.6%.
Which is cheaper, DFSU or IWB?
Neither: DFSU and IWB both charge 0.15% a year. Fees come from each fund's prospectus.
How much do DFSU and IWB overlap with the S&P 500?
By their latest filed holdings, 81% of DFSU and 92% of IWB by weight is stocks the S&P 500 already holds.
Cite this pageCitation, APA and Markdown

ETFIQ, DFSU against IWB, data as of Oct 9, 2026. https://etfiq.com/compare/any/dfsu-vs-iwb

Open data

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