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MDY vs VFMO: Differences, Returns & Fees

MDY and VFMO hold 16% of their weight in the same names. Net assets: $25.8bn on Oct 20, 2026 for SPDR S&P MidCap 400 ETF Trust, and $1.9bn on Sep 30, 2026 for Vanguard U.S. Momentum Factor ETF.

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Answers cite the figures on this page.

VFMO costs 0.10 points a year less; their one-year returns differ by 0.1 points; MDY is 13.3 times larger.

MDY vs VFMO: Differences, Returns & Fees
MDYVFMO
Expense ratio0.23%0.13%
Net assets, as of Sep 30, 2026$25.2bn$1.9bn
Total return, 1 year+13.1%+13.2%
What it tracksS&P MidCap 400 IndexNo index, actively managed
Holdings in common16%
Top ten holdings, share of the fund7.4%9.5%
Below its high6.7%, high on Aug 14, 202611.5%, high on Jun 30, 2026

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

+13.1%
MDY total return, 1 year
+13.2%
VFMO total return, 1 year
0.23%
MDY expense ratio
0.13%
VFMO expense ratio

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What they hold in common

By the books each fund has filed, MDY and VFMO hold 16% of their money in the same securities at the same weight. Holdings dated May 31, 2026 and Oct 19, 2026.

half

16% in common

Positions both hold, largest shared weight first
Holding MDY VFMO
Sterling Infrastructure Inc. 0.38% 0.41%
SiTime Corporation 0.34% 0.34%
Roivant Sciences Ltd. 0.55% 0.30%
Nextpower Inc. 0.35% 0.28%
Sanmina Corporation 0.28% 0.33%
TTM Technologies Inc. 0.31% 0.26%
XPO Inc. 0.64% 0.26%
HF Sinclair Corporation 0.56% 0.26%
Jazz Pharmaceuticals Public Limited Company 0.40% 0.25%
MACOM Technology Solutions Holdings Inc. 0.54% 0.25%
DigitalOcean Holdings Inc. 0.29% 0.24%
Rambus Inc. 0.29% 0.24%
Only in MDY
U.S. Dollar 0.97%
Okta Inc. Class A 0.92%
US Foods Holding Corp. 0.64%
Reliance Inc. 0.62%
Roku Inc. Class A 0.60%
Nutanix Inc. Class A 0.54%
Dynatrace Inc. 0.52%
Reinsurance Group of America Incorporated 0.51%
Only in VFMO
Micron Technology Inc 1.36%
Intel Corp 1.25%
Advanced Micro Devices Inc 1.12%
Western Digital Corp 0.89%
Alphabet Inc 0.87%
KLA Corp 0.86%
Applied Materials Inc 0.82%
Lam Research Corp 0.82%

Check overlap with more funds →

On the same fields

MDY
SPDR S&P MidCap 400 ETF Trust
VFMO
Vanguard U.S. Momentum Factor ETF
Where it sits Stock ETF Stock ETF
Issuer State Street Vanguard
What it is Tracks the S&P MidCap 400 Actively managed
Total return, 1 year +13.1% +13.2%
Its benchmark over the same days +13.4% (IJH) +15.0% (IWV)
Gap to its benchmark −0.3 pts vs IJH −1.9 pts vs IWV
Expense ratio 0.23% 0.13%
Already in the S&P 500 0.0% 43.4%
Holdings 401 704
Net assets, MDY as of Oct 20, 2026 and VFMO as of Sep 30, 2026 $25.8bn $1.9bn

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

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.

About VFMO

VFMO is actively managed and tracks no index. The prospectus expense ratio is 0.13% a year. By its holdings filed for May 31, 2026, 43% of the fund by weight is stocks the S&P 500 also holds, across 704 positions, with the top ten at 9.5%. It sat 11.5% below its high of Jun 30, 2026 on Oct 20, 2026.

Over the year to Oct 20, 2026 it returned +13.2% with distributions reinvested, against +15.0% for its benchmark, the Russell 3000 Index.

Questions people ask

Which returned more over the last year, MDY or VFMO?
In the year to Oct 20, 2026, with distributions reinvested, MDY returned +13.1% and VFMO +13.2%.
Which is cheaper, MDY or VFMO?
VFMO is cheaper, by 0.10 percentage points a year. That is about $10 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do MDY and VFMO overlap with the S&P 500?
By their latest filed holdings, 0% of MDY and 43% of VFMO by weight is stocks the S&P 500 already holds.
Other comparisons
IJH vs MDYIMCB vs MDYMDY vs SPGPIVOG vs MDYSPMD vs VFMOSCHM vs VFMOSPTM vs VFMOMOAT vs VFMO
MDY on its own →VFMO on its own →Hold both: look the portfolio through →Rankings →MDY dividend history →MDY holdings →VFMO dividend history →VFMO holdings →Standards and sources →
Where these figures came from
MDY filings on SEC EDGAR ↗State Street website ↗VFMO filings on SEC EDGAR ↗VFMO prospectus with the expense ratio (SEC) ↗Vanguard page for VFMO ↗

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

Open data

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