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Data as of Oct 28, 2026.

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Across categories

IWM vs SCAU: Differences, Returns & Fees

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IWM and SCAU are measured over different days, and IWM charges 0.19% to SCAU's 0.30%.

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Net assets: $75.5bn on Oct 27, 2026 for iShares Russell 2000 ETF, and $1.2m on Oct 28, 2026 for Corgi U.S. Small-Cap 15% Structured Buffer ETF - August Series.

IWM on its own →SCAU on its own →
At a glance
+14.1%
IWM total return, 1 year
−2.5%
SCAU total return, since launch, Aug 4, 2026
0.19%
IWM expense ratio
0.30%
SCAU expense ratio

Pair scorecard

IWM costs 0.11 points a year less; IWM is far larger, $75.5bn against $1.2m.

IWM vs SCAU: Differences, Returns & Fees
MeasureIWMSCAU
Return
Total return, 1 year+14.1%not published
Drawdown
Below its high7.6%, high on Aug 14, 2026
Benchmark
What it tracksRussell 2000 IndexIWM
The outcome period
Buffer left, in index points9.6% of 15.0%
Days left in the period277
Period endsJul 31, 2027
Cost and size
Expense ratio0.19%0.30%
Net assets, as of Oct 27, 2026$75.5bn$1.2m
Holdings
Holdings in commonnot published
In the S&P 500, by weight0%
Top ten holdings, share of the fund3.3%

Method

Side by side

IWM iShares Russell 2000 ETF SCAU Corgi U.S. Small-Cap 15% Structured Buffer ETF - August Series
Where it sits Stock ETF Buffer ETF
Issuer iShares Corgi
What it is Tracks the Russell 2000 Defined outcome, 15% on IWM
Total return, 1 year +14.1% −2.5% (since launch, Aug 4, 2026)
Its benchmark over the same days +14.3% (VTWO) −6.8% (IWM) (since launch, Aug 4, 2026)
Gap to its benchmark −0.2 pts vs VTWO +4.3 pts vs IWM (since launch, Aug 4, 2026)
Expense ratio 0.19% 0.30%
Holdings 1977 not read by ETFIQ
Net assets, IWM as of Oct 27, 2026 and SCAU as of Oct 28, 2026 $75.5bn $1.2m

IWM and SCAU on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

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About each fund
IWM

IWM tracks the Russell 2000. Over the year to Oct 28, 2026 it returned +14.1% with distributions reinvested, against +14.3% for its benchmark, the Russell 2000 Index. The prospectus expense ratio is 0.19% a year. By its holdings published by its issuer for Oct 27, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 1,977 positions, with the top ten at 3.3%. It sat 7.6% below its high of Aug 14, 2026 on Oct 28, 2026.

SCAU

Protection left, in index points: 9.6% of the 15.0% buffer still sits below today's IWM level. 277 days remained on Oct 27, 2026. On Jul 31, 2027 the period ends and a new cap is set.

Questions people ask

Are IWM and SCAU in the same category?
IWM is a stock ETF and SCAU is a buffer ETF, so they do different jobs. The table compares what both publish: return, cost and holdings.
Which is cheaper, IWM or SCAU?
IWM is cheaper, by 0.11 percentage points a year. That is about $11 on $10,000 held for a year. Fees come from each fund's prospectus.
Other comparisons
IWM vs SCJNIWM vs SCJLIWM vs SCMYIWM vs QBKVSCAU vs VTWOIJR vs SCAUIWM vs QBKFIWM vs KSEP
Where to next
IWM on its own →SCAU on its own →Hold both: look the portfolio through →Rankings →IWM dividend history →IWM holdings →Standards and sources →
Sources and dates
IWM filings on SEC EDGAR ↗
IWM prospectus with the expense ratio (SEC) ↗
iShares page for IWM ↗
SCAU filings on SEC EDGAR ↗
Corgi website ↗

Links are sources, not endorsements. A comparison is not a recommendation.

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ETFIQ, IWM against SCAU, data as of Oct 28, 2026. https://etfiq.com/compare/any/iwm-vs-scau

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