Which returned more over the last year, MTUM or VO?

In the year to Sep 12, 2026, with distributions reinvested, MTUM returned +21.8% and VO returned +12.0%, so MTUM returned more. One year is one year; the longer windows are in the table.

Which is cheaper, MTUM or VO?

MTUM charges 0.15% a year and VO charges 0.03%, so VO is cheaper. Fees come from each fund's prospectus.

How much do MTUM and VO overlap with the S&P 500?

By their latest filed holdings, 98% of MTUM and 91% of VO by weight is stocks the S&P 500 already holds. Between the two funds, 17% of their books are the same securities at the same weight.

Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.

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MTUM vs VO: how they differ

MTUM and VO hold 17% of their weight in the same names, and MTUM returned more over the year.

iShares MSCI USA Momentum Factor ETF and Vanguard Mid-Cap Index Fund.

What they hold in common

By the books each fund has filed, MTUM and VO hold 17% of their money in the same securities at the same weight.

Positions MTUM and VO both hold, largest shared weight first
Holding	MTUM	VO
WESTERN DIGITAL CORPORATION	1.54%	1.07%
SEAGATE TECHNOLOGY HOLDINGS PUBLIC LIMIT	1.51%	1.05%
HOWMET AEROSPACE INC.	0.96%	1.04%
CUMMINS INC.	0.67%	0.95%
CIENA CORPORATION	0.65%	0.67%
ROBINHOOD MARKETS, INC.	0.57%	0.77%
LUMENTUM HOLDINGS INC.	0.56%	0.65%
ROYAL CARIBBEAN CRUISES LTD.	0.54%	0.74%
ENTERGY CORPORATION	0.58%	0.53%
BLOOM ENERGY CORPORATION	0.51%	0.79%
NEWMONT CORPORATION	1.17%	0.48%
QUANTA SERVICES, INC.	0.46%	1.05%

Largest positions each one holds and the other does not
Only in MTUM	Only in VO
MICRON TECHNOLOGY, INC. 5.57%	Datadog Inc 0.84%
BROADCOM INC. 5.41%	Constellation Energy Corp 0.78%
NVIDIA CORPORATION 4.65%	Cloudflare Inc 0.76%
ADVANCED MICRO DEVICES, INC. 4.04%	Valero Energy Corp 0.75%
INTEL CORPORATION 3.84%	Marathon Petroleum Corp 0.72%
JOHNSON & JOHNSON 3.76%	TransDigm Group Inc 0.72%
LAM RESEARCH CORPORATION 3.62%	CRH PLC 0.69%
EXXON MOBIL CORPORATION 3.44%	United Rentals Inc 0.69%

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Apr 30, 2026 and Jun 30, 2026.

MTUM and VO on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
	MTUM iShares MSCI USA Momentum Factor ETF	VO Vanguard Mid-Cap Index Fund
Where it sits	Core index fund	Core index fund
Issuer	iShares	Vanguard
What it is	MSCI USA Momentum Factor	Mid-Cap
Total return, 1 year	+21.8%	+12.0%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	+4.3 pts	−5.5 pts
Expense ratio	0.15%	0.03%
Already in the S&P 500	98.2%	91.4%
Holdings	125	282

MTUM in plain words

MTUM is an index equity fund tracking the MSCI USA Momentum Factor. Over the year to Sep 11, 2026 it returned +21.8% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.15% a year. By its holdings filed for Apr 30, 2026, 98% of the fund by weight is stocks the S&P 500 also holds, across 125 positions, with the top ten at 40.5%. It sat 11.1% below its high of Jun 22, 2026 on Sep 11, 2026.

VO in plain words

VO is an index equity fund tracking the Mid-Cap. Over the year to Sep 11, 2026 it returned +12.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.03% a year. By its holdings filed for Jun 30, 2026, 91% of the fund by weight is stocks the S&P 500 also holds, across 282 positions, with the top ten at 9.6%. It sat 4.1% below its high of Aug 14, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, MTUM or VO?: In the year to Sep 12, 2026, with distributions reinvested, MTUM returned +21.8% and VO returned +12.0%, so MTUM returned more. One year is one year; the longer windows are in the table.
Which is cheaper, MTUM or VO?: MTUM charges 0.15% a year and VO charges 0.03%, so VO is cheaper. Fees come from each fund's prospectus.
How much do MTUM and VO overlap with the S&P 500?: By their latest filed holdings, 98% of MTUM and 91% of VO by weight is stocks the S&P 500 already holds. Between the two funds, 17% of their books are the same securities at the same weight.

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Where these figures came from

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

MTUM against VO, ETFIQ, data as of Sep 12, 2026. Every figure is arithmetic on a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, MTUM against VO, data as of Sep 12, 2026. https://etfiq.com/compare/any/MTUM-VO Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources