MDY vs VO
State Street SPDR S&P MIDCAP 400 ETF Trust vs Vanguard Mid-Cap Index Fund ETF Shares
Last updated: 2026-04-02
State Street SPDR S&P MIDCAP 400 ETF Trust (MDY) is an exchange-traded fund that provides exposure to mid-cap U.S. companies balancing growth potential and stability. It charges a moderate expense ratio of 0.24%. The fund offers a moderate dividend yield of 1.15%. Launched in 1995, the fund has a 31-year track record.
Vanguard Mid-Cap Index Fund ETF Shares (VO) is an exchange-traded fund issued by Vanguard that provides exposure to mid-cap U.S. companies balancing growth potential and stability. It charges a very low expense ratio of 0.03%. The fund offers a moderate dividend yield of 1.50%. Launched in 2004, the fund has a 22-year track record.
Quick Verdict
VO is significantly cheaper at 0.03% vs 0.24% expense ratio, saving you approximately $415 per $10,000 invested over 10 years. MDY has edged ahead over the past year (15.9% vs 11.4%).
Key Metrics
Performance Chart
Indexed to 100 at start (5-year comparison)
Performance Comparison
Fee Impact Over Time
Estimated fee cost difference assuming 8% annual returns
Risk Metrics
Based on 5 years of daily returns
Dividend Comparison
Top Holdings
0 of top 10 holdings overlap (0% overlap in top holdings)
MDY Top Holdings
| Name | Weight |
|---|---|
| TechnipFMC plcFTI | 0.87% |
| U.S. DollarCASH_USD | 0.86% |
| Casey's General Stores, Inc.CASY | 0.84% |
| United Therapeutics CorporationUTHR | 0.79% |
| Curtiss-Wright CorporationCW | 0.78% |
| Flex Ltd.FLEX | 0.75% |
| XPO, Inc.XPO | 0.71% |
| Woodward, Inc.WWD | 0.66% |
| Royal Gold, Inc.RGLD | 0.64% |
| US Foods Holding Corp.USFD | 0.63% |
VO Top Holdings
| Name | Weight |
|---|---|
| Newmont CorporationNEM | 1.46% |
| Corning IncorporatedGLW | 1.20% |
| Howmet Aerospace Inc.HWM | 1.09% |
| Constellation Energy CorporationCEG | 1.06% |
| Vertiv Holdings CoVRT | 0.99% |
| Western Digital CorporationWDC | 0.99% |
| Seagate Technology Holdings plcSTX | 0.90% |
| Quanta Services, Inc.PWR | 0.87% |
| Cummins Inc.CMI | 0.83% |
| CRH plcCRH | 0.83% |
Which One Should You Choose?
Choose VO if...
you want the lowest fees and plan to buy and hold long-term. Over decades, the expense ratio difference compounds significantly.
Choose MDY if...
recent performance momentum matters to your strategy. Note that past performance doesn't guarantee future results.
Choose VO if...
you prioritize dividend income and want higher regular distributions from your portfolio.
Either works if...
you just need broad us mid cap exposure. Both are solid options — pick whichever your brokerage offers commission-free.