Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
MDY vs VTWO: how they differ
MDY and VTWO hold 18% of their weight in the same names, and VTWO returned more over the year.
SPDR S&P MidCap 400 ETF Trust and Vanguard Russell 2000 Index Fund.
What they hold in common
By the books each fund has filed, MDY and VTWO hold 18% of their money in the same securities at the same weight.
| Holding | MDY | VTWO |
|---|---|---|
| STERLING INFRASTRUCTURE INC | 0.71% | 0.76% |
| TTM TECHNOLOGIES INC | 0.54% | 0.52% |
| NEXTPOWER INC | 0.49% | 0.67% |
| COEUR MINING INC | 0.47% | 0.58% |
| SITIME CORP | 0.46% | 0.47% |
| DYCOM INDUSTRIES INC | 0.42% | 0.44% |
| SEMTECH CORP | 0.42% | 0.42% |
| RAMBUS INC | 0.40% | 0.46% |
| SANMINA CORP | 0.37% | 0.41% |
| DIGITALOCEAN HOLDINGS INC | 0.35% | 0.35% |
| ADVANCED ENERGY INDUSTRIES INC | 0.39% | 0.34% |
| ARROWHEAD PHARMACEUTICALS INC | 0.32% | 0.31% |
| Only in MDY | Only in VTWO |
|---|---|
| TWILIO INC 0.86% | Bloom Energy Corp 1.83% |
| CARPENTER TECHNOLOGY CORP 0.85% | Credo Technology Group Holding Ltd 1.12% |
| MKS INC 0.83% | Fabrinet 0.69% |
| CURTISS-WRIGHT CORP 0.77% | IonQ Inc 0.63% |
| ENTEGRIS INC 0.76% | EchoStar Corp 0.52% |
| NVENT ELECTRIC PLC 0.76% | Guardant Health Inc 0.47% |
| ATI INC 0.74% | Modine Manufacturing Co 0.43% |
| ILLUMINA INC 0.73% | Planet Labs PBC 0.41% |
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 Jun 30, 2026 and May 31, 2026.
| MDY SPDR S&P MidCap 400 ETF Trust | VTWO Vanguard Russell 2000 Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | State Street | Vanguard |
| What it is | S&P MidCap 400, book from IJH | Russell 2000 |
| Total return, 1 year | +13.0% | +21.4% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −4.5 pts | +3.9 pts |
| Expense ratio | 0.23% | 0.07% |
| Already in the S&P 500 | 0.0% | 0.5% |
| Holdings | 400 | 1951 |
MDY in plain words
MDY is an index equity fund tracking the S&P MidCap 400. Over the year to Sep 11, 2026 it returned +13.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.23% a year. By its holdings filed for Jun 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 400 positions, with the top ten at 7.7%. It sat 5.3% below its high of Aug 14, 2026 on Sep 11, 2026.
VTWO in plain words
VTWO is an index equity fund tracking the Russell 2000. Over the year to Sep 11, 2026 it returned +21.4% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.07% a year. By its holdings filed for May 31, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 1951 positions, with the top ten at 7.8%.
Questions people ask
- Which returned more over the last year, MDY or VTWO?
- In the year to Sep 12, 2026, with distributions reinvested, MDY returned +13.0% and VTWO returned +21.4%, so VTWO returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, MDY or VTWO?
- MDY charges 0.23% a year and VTWO charges 0.07%, so VTWO is cheaper. Fees come from each fund's prospectus.
- How much do MDY and VTWO overlap with the S&P 500?
- By their latest filed holdings, 0% of MDY and 0% of VTWO by weight is stocks the S&P 500 already holds. Between the two funds, 18% 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.
Cite this page. ETFIQ, MDY against VTWO, data as of Sep 12, 2026. https://etfiq.com/compare/any/MDY-VTWO Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources