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

In the year to Oct 20, 2026, with distributions reinvested, CGMM returned +11.1% and MDY +13.1%.

Which is cheaper, CGMM or MDY?

MDY is cheaper, by 0.28 percentage points a year. That is about $28 on $10,000 held for a year. Fees come from each fund's prospectus.

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

By their latest filed holdings, 45% of CGMM and 0% of MDY by weight is stocks the S&P 500 already holds.

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CGMM vs MDY: Differences, Returns & Fees

CGMM and MDY hold 9% of their weight in the same names, and MDY returned +13.1% over the year. Net assets: $3.5bn on Oct 19, 2026 for Capital Group U.S. Small and Mid Cap ETF, and $25.8bn on Oct 20, 2026 for SPDR S&P MidCap 400 ETF Trust.

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Answers cite the figures on this page.

MDY costs 0.28 points a year less; their one-year returns differ by 2.0 points; MDY is 7.3 times larger.

CGMM vs MDY: Differences, Returns & Fees
	CGMM	MDY
Expense ratio	0.51%	0.23%
Net assets, as of Oct 19, 2026	$3.5bn	$25.6bn
Total return, 1 year	+11.1%	+13.1%
What it tracks	No index, actively managed	S&P MidCap 400 Index
Holdings in common	9%
Top ten holdings, share of the fund	18.7%	7.4%
Below its high	6.8%, high on Aug 13, 2026	6.7%, 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

+13.1%

MDY total return, 1 year

0.51%

CGMM expense ratio

0.23%

MDY expense ratio

What they hold in common

By the books each fund has filed, CGMM and MDY hold 9% of their money in the same securities at the same weight. Holdings dated May 31, 2026 and Oct 19, 2026.

50%

half

9% in common

Positions both hold, largest shared weight first

Holding CGMM MDY

ATI Inc 0.98% 0.76%

US Foods Holding Corp 1.56% 0.64%

XPO Inc 1.08% 0.64%

Royal Gold Inc 0.62% 0.59%

API Group Corp 0.81% 0.45%

RenaissanceRe Holdings Ltd 1.84% 0.43%

Fabrinet 1.15% 0.38%

Penumbra Inc 0.50% 0.37%

Five Below Inc 0.88% 0.36%

Applied Industrial Technologies Inc 0.77% 0.36%

Elanco Animal Health Inc 0.47% 0.34%

Texas Roadhouse Inc 0.89% 0.33%

Only in CGMM

Bloom Energy Corp 2.56%

Capital Group Central Cash Fund 2.20%

Exelon Corp 1.91%

Comfort Systems USA Inc 1.79%

NIKE Inc 1.77%

Ciena Corp 1.65%

Flex Ltd 1.63%

Hewlett Packard Enterprise Co 1.59%

Only in MDY

U.S. Dollar 0.97%

Okta Inc. Class A 0.92%

TechnipFMC plc 0.80%

United Therapeutics Corporation 0.68%

nVent Electric plc 0.67%

Entegris Inc. 0.65%

Tenet Healthcare Corporation 0.63%

Reliance Inc. 0.62%

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On the same fields

CGMM

Capital Group U.S. Small and Mid Cap ETF

MDY

SPDR S&P MidCap 400 ETF Trust

Where it sits Stock ETF Stock ETF

Issuer Capital Group State Street

What it is Actively managed Tracks the S&P MidCap 400

Total return, 1 year +11.1% +13.1%

Its benchmark over the same days +15.0% (IWV) +13.4% (IJH)

Gap to its benchmark −4.0 pts vs IWV −0.3 pts vs IJH

Expense ratio 0.51% 0.23%

Already in the S&P 500 45.4% 0.0%

Holdings 114 401

Net assets, CGMM as of Oct 19, 2026 and MDY as of Oct 20, 2026 $3.5bn $25.8bn

CGMM and MDY 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 MDY

MDY tracks the S&P MidCap 400. Over the year to Oct 20, 2026 it returned +13.1% with distributions reinvested, against +13.4% for its benchmark, the S&P MidCap 400 Index. The prospectus expense ratio is 0.23% a year. By its holdings published by its issuer for Oct 19, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 401 positions, with the top ten at 7.4%. It sat 6.7% below its high of Aug 14, 2026 on Oct 20, 2026.

Questions people ask

Which returned more over the last year, CGMM or MDY?: In the year to Oct 20, 2026, with distributions reinvested, CGMM returned +11.1% and MDY +13.1%.
Which is cheaper, CGMM or MDY?: MDY is cheaper, by 0.28 percentage points a year. That is about $28 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do CGMM and MDY overlap with the S&P 500?: By their latest filed holdings, 45% of CGMM and 0% of MDY by weight is stocks the S&P 500 already holds.

Other comparisons

CGMM vs SPMD CGMM vs SCHM CGMM vs SPTM CGMM vs IWR IVOO vs MDY MDY vs TMSL IMCG vs MDY JMEE vs MDY

CGMM on its own →MDY on its own →Hold both: look the portfolio through →Rankings →CGMM dividend history →CGMM holdings →MDY dividend history →MDY 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 ↗MDY filings on SEC EDGAR ↗State Street website ↗

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 MDY, data as of Oct 20, 2026. https://etfiq.com/compare/any/cgmm-vs-mdy

Open data

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