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IWS vs RWK: how they differ

IWS and RWK hold 21% of their weight in the same names, and IWS returned +20.2% over the year. iShares Russell Mid-Cap Value ETF and Invesco S&P MidCap 400 Revenue ETF.

IWS costs 0.16 points a year less; their one-year returns differ by 4.3 points; IWS is 11.9 times larger.

IWSRWK
Expense ratio0.23%0.39%
Net assets$15.3bn$1.3bn
Total return, 1 year+20.2%+15.9%
Holdings in common21%
Nasdaq-100, total return, 1 year+23.6%
Top ten holdings, share of the fund7.0%20.9%
Below its high4.6%, high on Aug 14, 20266.7%, high on Aug 14, 2026

Holdings in common uses holdings dated Oct 8, 2026.

+20.2%
IWS total return, 1 year
+15.9%
RWK total return, 1 year
0.23%
IWS expense ratio
0.39%
RWK expense ratio

What they hold in common

By the books each fund has filed, IWS and RWK hold 21% 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 Oct 8, 2026.

half

21% in common

Positions both hold, largest shared weight first
Holding IWS RWK
TENET HEALTHCARE CORP 0.21% 0.86%
US FOODS HOLDING 0.21% 1.64%
RELIANCE STEEL & ALUMINUM 0.20% 0.65%
TD SYNNEX 0.20% 2.96%
HF SINCLAIR 0.18% 1.43%
ITT INC 0.18% 0.19%
EAST WEST BANCORP 0.17% 0.19%
OVINTIV 0.17% 0.39%
REINSURANCE GROUP OF AMERICA 0.17% 1.11%
WESCO INTERNATIONAL 0.17% 1.02%
MKS 0.16% 0.17%
NVENT ELECTRIC PLC 0.16% 0.20%
Only in IWS
PHILLIPS 66 1.06%
HEWLETT PACKARD ENTERPRISE 0.94%
MODERNA 0.72%
MARATHON PETROLEUM 0.67%
DIGITAL REALTY TRUST REIT 0.65%
KINDER MORGAN 0.63%
ALLSTATE CORP 0.59%
AMETEK INC 0.57%
Only in RWK
American Airlines Group Inc 2.36%
PBF Energy Inc 1.64%
Murphy USA Inc 0.88%
BrightSpring Health Services Inc 0.60%
MasTec Inc 0.59%
Fluor Corp 0.59%
Burlington Stores Inc 0.58%
Chewy Inc 0.48%

Check overlap with more funds →

On the same fields

IWS
iShares Russell Mid-Cap Value ETF
RWK
Invesco S&P MidCap 400 Revenue ETF
Where it sits Stock ETF Stock ETF
Issuer iShares Invesco
What it is Tracks an index Tracks an index
Total return, 1 year +20.2% +15.9%
S&P 500 over the same days +17.3% +17.3%
Gap to the S&P 500 +3.0 pts −1.3 pts
Expense ratio 0.23% 0.39%
Already in the S&P 500 66.1% 2.4%
Holdings 719 400
Net assets $15.3bn $1.3bn

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

IWS in plain words

IWS tracks an index. Over the year to Oct 9, 2026 it returned +20.2% with distributions reinvested, against +17.3% for the S&P 500 and +23.6% for the Nasdaq-100. The prospectus expense ratio is 0.23% a year. By its holdings published by its issuer for Oct 8, 2026, 66% of the fund by weight is stocks the S&P 500 also holds, across 719 positions, with the top ten at 7.0%. It sat 4.6% below its high of Aug 14, 2026 on Oct 9, 2026.

RWK in plain words

RWK tracks an index. Over the year to Oct 9, 2026 it returned +15.9% with distributions reinvested, against +17.3% for the S&P 500 and +23.6% for the Nasdaq-100. The prospectus expense ratio is 0.39% a year. By its holdings published by its issuer for Oct 8, 2026, 2% of the fund by weight is stocks the S&P 500 also holds, across 400 positions, with the top ten at 20.9%. It sat 6.7% below its high of Aug 14, 2026 on Oct 9, 2026.

Questions people ask

Which returned more over the last year, IWS or RWK?
In the year to Oct 9, 2026, with distributions reinvested, IWS returned +20.2% and RWK +15.9%.
Which is cheaper, IWS or RWK?
IWS is cheaper, by 0.16 percentage points a year. On $10,000 held for a year that difference is about $16. Fees come from each fund's prospectus.
How much do IWS and RWK overlap with the S&P 500?
By their latest filed holdings, 66% of IWS and 2% of RWK by weight is stocks the S&P 500 already holds.
Other comparisons
IWS vs RSPAIWS vs MDYVIWS vs WTVEMLP vs IWSCOWZ vs RWKEMLP vs RWKMDYV vs RWKPKW vs RWK
IWS on its own →RWK on its own →Hold both: look the portfolio through →Rankings →Standards and sources →
Where these figures came from
IWS filings on SEC EDGAR ↗IWS prospectus with the expense ratio (SEC) ↗iShares page for IWS ↗RWK filings on SEC EDGAR ↗RWK prospectus with the expense ratio (SEC) ↗Invesco page for RWK ↗

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

How this is computed

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed.

Cite this page

ETFIQ, IWS against RWK, data as of Oct 9, 2026. https://etfiq.com/compare/any/iws-vs-rwk

Open data

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