IMCB vs XMMO: Differences, Returns & Fees

IMCB and XMMO hold 2% of their weight in the same names, and IMCB returned +19.2% over the year. Net assets on Oct 20, 2026: $1.7bn for iShares Morningstar Mid-Cap ETF and $6.8bn for Invesco S&P MidCap Momentum ETF.

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Answers cite the figures on this page.

IMCB costs 0.30 points a year less; their one-year returns differ by 14.6 points; XMMO is 4.0 times larger.

IMCB vs XMMO: Differences, Returns & Fees
IMCBXMMO
Expense ratio0.04%0.34%
Net assets$1.7bn$6.8bn
Total return, 1 year+19.2%+4.6%
What it tracksMorningstar US Mid Cap IndexS&P MidCap 400 Momentum Index
Holdings in common2%
Top ten holdings, share of the fund7.9%29.4%
Below its high3.3%, high on Aug 14, 202619.0%, high on Jun 22, 2026

Holdings in common uses holdings dated Oct 19, 2026.

+19.2%
IMCB total return, 1 year
+4.6%
XMMO total return, 1 year
0.04%
IMCB expense ratio
0.34%
XMMO expense ratio

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Client brief · page 1 of 2Report BR-12B77765C1

IMCB and XMMO are built for the same job. How do they differ in cost, holdings and results?

  1. What each follows. IMCB follows Morningstar US Mid Cap Index and XMMO follows S&P MidCap 400 Momentum Index.
  2. Holdings in common. 2% of the weight is in the same securities (holdings dated Oct 19, 2026).
  3. One-year total return. Over 1 year to Oct 20, 2026 IMCB returned +19.2% and XMMO +4.6% with distributions reinvested, a gap of 14.6 points.

Data as of Oct 20, 2026. The differences are picked by a fixed rule, in a fixed order; the PDF prints it. Page 2 has the returns, overlap, risks and sources.

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What they hold in common

By the books each fund has filed, IMCB and XMMO hold 2% of their money in the same securities at the same weight. Holdings dated Oct 19, 2026.

half

2% in common

Positions both hold, largest shared weight first
Holding IMCB XMMO
ATI 0.18% 4.17%
TECHNIPFMC PLC 0.18% 4.31%
NVENT ELECTRIC PLC 0.16% 2.56%
RELIANCE STEEL & ALUMINUM 0.15% 2.06%
UNITED THERAPEUTICS 0.14% 2.36%
CARPENTER TECHNOLOGY 0.13% 2.14%
CURTISS WRIGHT 0.13% 1.45%
MACOM TECHNOLOGY SOLUTIONS 0.13% 1.54%
OVINTIV 0.13% 1.67%
PERMIAN RESOURCES CLASS A 0.13% 1.92%
TD SYNNEX 0.13% 2.55%
ROIVANT SCIENCES LTD 0.12% 3.57%
Only in IMCB
MARATHON PETROLEUM 0.93%
DELL TECHNOLOGIES INC CLASS C 0.91%
VALERO ENERGY CORP 0.87%
PHILLIPS 66 0.81%
AUTOMATIC DATA PROCESSING INC 0.80%
FORTINET 0.75%
SNOWFLAKE 0.74%
FREEPORT MCMORAN INC 0.70%
Only in XMMO
HF Sinclair Corp 3.02%
Jazz Pharmaceuticals PLC 2.17%
BrightSpring Health Services Inc 1.98%
DigitalOcean Holdings Inc 1.76%
Moog Inc 1.62%
Viavi Solutions Inc 1.61%
Arrowhead Pharmaceuticals Inc 1.53%
Onto Innovation Inc 1.46%

Check overlap with more funds →

On the same fields

IMCB
iShares Morningstar Mid-Cap ETF
XMMO
Invesco S&P MidCap Momentum ETF
Where it sits Stock ETF Stock ETF
What it is Tracks an index Tracks an index
Total return, 1 year +19.2% +4.6%
Expense ratio 0.04% 0.34%
Already in the S&P 500 86.3% 0.0%
Holdings 394 79
Net assets $1.7bn $6.8bn

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

About IMCB

IMCB tracks an index. Over the year to Oct 20, 2026 it returned +19.2% with distributions reinvested. The prospectus expense ratio is 0.04% a year. By its holdings published by its issuer for Oct 19, 2026, 86% of the fund by weight is stocks the S&P 500 also holds, across 394 positions, with the top ten at 7.9%. It sat 3.3% below its high of Aug 14, 2026 on Oct 20, 2026.

About XMMO

XMMO tracks an index. Over the year to Oct 20, 2026 it returned +4.6% with distributions reinvested. The prospectus expense ratio is 0.34% 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 79 positions, with the top ten at 29.4%. It sat 19.0% below its high of Jun 22, 2026 on Oct 20, 2026.

Questions people ask

Which returned more over the last year, IMCB or XMMO?
In the year to Oct 20, 2026, with distributions reinvested, IMCB returned +19.2% and XMMO +4.6%.
Which is cheaper, IMCB or XMMO?
IMCB is cheaper, by 0.30 percentage points a year. That is about $30 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do IMCB and XMMO overlap with the S&P 500?
By their latest filed holdings, 86% of IMCB and 0% of XMMO by weight is stocks the S&P 500 already holds.
Cite this pageCitation, APA and Markdown

ETFIQ, IMCB against XMMO, data as of Oct 20, 2026. https://etfiq.com/compare/any/imcb-vs-xmmo

Open data

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