CGMM vs IVOO: Differences, Returns & Fees

CGMM and IVOO hold 8% of their weight in the same names, and IVOO returned +13.6% over the year. Net assets: $3.5bn on Oct 19, 2026 for Capital Group U.S. Small and Mid Cap ETF, and $3.7bn on Sep 30, 2026 for Vanguard S&P Mid-Cap 400 ETF.

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Answers cite the figures on this page.

IVOO costs 0.44 points a year less; their one-year returns differ by 2.5 points.

CGMM vs IVOO: Differences, Returns & Fees
CGMMIVOO
Expense ratio0.51%0.07%
Net assets, as of Sep 30, 2026$3.4bn$3.7bn
Total return, 1 year+11.1%+13.6%
What it tracksNo index, actively managedS&P MidCap 400 Index
Holdings in common8%
Top ten holdings, share of the fund18.7%7.8%
Below its high6.8%, high on Aug 13, 20266.7%, high on Aug 14, 2026

Holdings in common uses holdings dated May 31, 2026 and Sep 30, 2026.

+11.1%
CGMM total return, 1 year
+13.6%
IVOO total return, 1 year
0.51%
CGMM expense ratio
0.07%
IVOO expense ratio

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What they hold in common

By the books each fund has filed, CGMM and IVOO hold 8% of their money in the same securities at the same weight. Holdings dated May 31, 2026 and Sep 30, 2026.

half

8% in common

Positions both hold, largest shared weight first
Holding CGMM IVOO
ATI Inc 0.98% 0.76%
XPO Inc 1.08% 0.60%
Royal Gold Inc 0.62% 0.59%
US Foods Holding Corp 1.56% 0.58%
Fabrinet 1.15% 0.45%
API Group Corp 0.81% 0.43%
RenaissanceRe Holdings Ltd 1.84% 0.39%
TTM Technologies Inc 0.80% 0.38%
Penumbra Inc 0.50% 0.37%
Applied Industrial Technologies Inc 0.77% 0.36%
Five Below Inc 0.88% 0.36%
Elanco Animal Health Inc 0.47% 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 IVOO
Twilio Inc 1.32%
Okta Inc 1.02%
TechnipFMC PLC 0.78%
nVent Electric PLC 0.76%
Entegris Inc 0.69%
United Therapeutics Corp 0.68%
Tenet Healthcare Corp 0.60%
TD SYNNEX Corp 0.60%

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On the same fields

CGMM
Capital Group U.S. Small and Mid Cap ETF
IVOO
Vanguard S&P Mid-Cap 400 ETF
Where it sits Stock ETF Stock ETF
What it is Actively managed Tracks an index
Total return, 1 year +11.1% +13.6%
Its benchmark over the same days +15.0% (IWV) +13.4% (IJH)
Gap to its benchmark −4.0 pts vs IWV +0.1 pts vs IJH
Expense ratio 0.51% 0.07%
Already in the S&P 500 45.4% 1.6%
Holdings 114 402
Net assets, CGMM as of Oct 19, 2026 and IVOO as of Sep 30, 2026 $3.5bn $3.7bn

CGMM and IVOO 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 IVOO

IVOO tracks an index. Over the year to Oct 20, 2026 it returned +13.6% with distributions reinvested, against +13.4% for its benchmark, the S&P MidCap 400 Index. The prospectus expense ratio is 0.07% a year. By its holdings published by its issuer as of Sep 30, 2026, 2% of the fund by weight is stocks the S&P 500 also holds, across 402 positions, with the top ten at 7.8%. 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 IVOO?
In the year to Oct 20, 2026, with distributions reinvested, CGMM returned +11.1% and IVOO +13.6%.
Which is cheaper, CGMM or IVOO?
IVOO is cheaper, by 0.44 percentage points a year. That is about $44 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do CGMM and IVOO overlap with the S&P 500?
By their latest filed holdings, 45% of CGMM and 2% of IVOO by weight is stocks the S&P 500 already holds.
Cite this pageCitation, APA and Markdown

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

Open data

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