Which returned more over the last year, CGMM or IWR?

In the year to Oct 20, 2026, with distributions reinvested, CGMM returned +11.1% and IWR +15.1%.

Which is cheaper, CGMM or IWR?

IWR is cheaper, by 0.33 percentage points a year. That is about $33 on $10,000 held for a year. Fees come from each fund's prospectus.

How much do CGMM and IWR overlap with the S&P 500?

By their latest filed holdings, 45% of CGMM and 62% of IWR by weight is stocks the S&P 500 already holds.

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CGMM vs IWR: Differences, Returns & Fees

CGMM and IWR hold 13% of their weight in the same names, and IWR returned +15.1% over the year. Net assets: $3.5bn on Oct 19, 2026 for Capital Group U.S. Small and Mid Cap ETF, and $57.0bn on Oct 20, 2026 for iShares Russell Mid-Cap ETF.

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Answers cite the figures on this page.

IWR costs 0.33 points a year less; their one-year returns differ by 4.0 points; IWR is 16.0 times larger.

CGMM vs IWR: Differences, Returns & Fees
	CGMM	IWR
Expense ratio	0.51%	0.18%
Net assets, as of Oct 19, 2026	$3.5bn	$56.2bn
Total return, 1 year	+11.1%	+15.1%
What it tracks	No index, actively managed	Russell Midcap Index
Holdings in common	13%
Top ten holdings, share of the fund	18.7%	6.8%
Below its high	6.8%, high on Aug 13, 2026	4.3%, high on Aug 14, 2026

Holdings in common uses holdings dated May 31, 2026 and Oct 19, 2026.

+11.1%

CGMM total return, 1 year

+15.1%

IWR total return, 1 year

0.51%

CGMM expense ratio

0.18%

IWR expense ratio

What they hold in common

By the books each fund has filed, CGMM and IWR hold 13% of their money in the same securities at the same weight. Holdings dated May 31, 2026 and Oct 19, 2026.

50%

half

13% in common

Positions both hold, largest shared weight first

Holding CGMM IWR

Cloudflare Inc 0.92% 0.71%

Hewlett Packard Enterprise Co 1.59% 0.55%

United Rentals Inc 0.86% 0.48%

Keysight Technologies Inc 1.41% 0.43%

Baker Hughes Co 0.48% 0.41%

Natera Inc 0.48% 0.41%

Lumentum Holdings Inc 0.41% 0.48%

Comfort Systems USA Inc 1.79% 0.38%

Humana Inc 0.72% 0.37%

Veeva Systems Inc 0.65% 0.35%

Fifth Third Bancorp 1.13% 0.34%

Exelon Corp 1.91% 0.32%

Only in CGMM

Bloom Energy Corp 2.56%

Capital Group Central Cash Fund 2.20%

NIKE Inc 1.77%

Ciena Corp 1.65%

DoorDash Inc 1.53%

Monster Beverage Corp 1.34%

Simon Property Group Inc 1.23%

Cerebras Systems Inc 1.17%

Only in IWR

MARATHON PETROLEUM 1.04%

PHILLIPS 66 0.87%

SNOWFLAKE 0.79%

DATADOG INC CLASS A 0.64%

MODERNA 0.61%

ROBINHOOD MARKETS CLASS A 0.55%

ROYAL CARIBBEAN GROUP 0.53%

DIGITAL REALTY TRUST REIT 0.48%

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On the same fields

CGMM

Capital Group U.S. Small and Mid Cap ETF

IWR

iShares Russell Mid-Cap ETF

Where it sits Stock ETF Stock ETF

Issuer Capital Group iShares

What it is Actively managed Tracks an index

Total return, 1 year +11.1% +15.1%

Its benchmark over the same days +15.0% (IWV) +15.0% (IWV)

Gap to its benchmark −4.0 pts vs IWV +0.1 pts vs IWV

Expense ratio 0.51% 0.18%

Already in the S&P 500 45.4% 61.6%

Holdings 114 825

Net assets, CGMM as of Oct 19, 2026 and IWR as of Oct 20, 2026 $3.5bn $57.0bn

CGMM and IWR on the fields both publish, as of Oct 20, 2026. Source: ETFIQ.

About CGMM

CGMM is actively managed and tracks no index. The prospectus expense ratio is 0.51% a year. By its holdings filed for May 31, 2026, 45% of the fund by weight is stocks the S&P 500 also holds, across 114 positions, with the top ten at 18.7%. It sat 6.8% below its high of Aug 13, 2026 on Oct 20, 2026.

Over the year to Oct 20, 2026 it returned +11.1% with distributions reinvested, against +15.0% for its benchmark, the Russell 3000 Index.

About IWR

IWR tracks an index. The prospectus expense ratio is 0.18% a year. By its holdings published by its issuer for Oct 19, 2026, 62% of the fund by weight is stocks the S&P 500 also holds, across 825 positions, with the top ten at 6.8%. It sat 4.3% below its high of Aug 14, 2026 on Oct 20, 2026.

Over the year to Oct 20, 2026 it returned +15.1% with distributions reinvested, against +15.0% for its benchmark, the Russell 3000 Index.

Questions people ask

Which returned more over the last year, CGMM or IWR?: In the year to Oct 20, 2026, with distributions reinvested, CGMM returned +11.1% and IWR +15.1%.
Which is cheaper, CGMM or IWR?: IWR is cheaper, by 0.33 percentage points a year. That is about $33 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do CGMM and IWR overlap with the S&P 500?: By their latest filed holdings, 45% of CGMM and 62% of IWR by weight is stocks the S&P 500 already holds.

Other comparisons

CGMM vs VO CGMM vs VXF CGMM vs IJH CGMM vs MDY IVOO vs IWR IWR vs TMSL IMCG vs IWR IWR vs JMEE

CGMM on its own →IWR on its own →Hold both: look the portfolio through →Rankings →CGMM dividend history →CGMM holdings →IWR dividend history →IWR holdings →Standards and sources →

Where these figures came from

CGMM filings on SEC EDGAR ↗CGMM prospectus with the expense ratio (SEC) ↗Capital Group page for CGMM ↗IWR filings on SEC EDGAR ↗IWR prospectus with the expense ratio (SEC) ↗iShares page for IWR ↗

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, CGMM against IWR, data as of Oct 20, 2026. https://etfiq.com/compare/any/cgmm-vs-iwr

Open data

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