MDY vs SPY
State Street SPDR S&P MIDCAP 400 ETF Trust vs State Street SPDR S&P 500 ETF Trust
Last updated: 2026-04-10
State Street SPDR S&P MIDCAP 400 ETF Trust (MDY) is an exchange-traded fund issued by SPDR 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 1.11%. Launched in 1995, the fund has a 31-year track record.
State Street SPDR S&P 500 ETF Trust (SPY) is an exchange-traded fund issued by SPDR that provides exposure to large-cap U.S. equities across growth and value styles. It charges a low expense ratio of 0.09%. The fund offers a moderate dividend yield of 1.09%. Launched in 1993, the fund has a 33-year track record.
Quick Verdict
SPY is significantly cheaper at 0.09% vs 0.24% expense ratio, saving you approximately $296 per $10,000 invested over 10 years. MDY has edged ahead over the past year (31.1% vs 29.6%).
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 9 holdings overlap (0% overlap in top holdings)
MDY Top Holdings
| Name | Weight |
|---|---|
| TechnipFMC plcFTI | 0.86% |
| U.S. DollarCASH_USD | 0.85% |
| Casey's General Stores, Inc.CASY | 0.84% |
| Flex Ltd.FLEX | 0.80% |
| Curtiss-Wright CorporationCW | 0.80% |
| United Therapeutics CorporationUTHR | 0.75% |
| XPO, Inc.XPO | 0.74% |
| Woodward, Inc.WWD | 0.70% |
| FabrinetFN | 0.65% |
| Royal Gold, Inc.RGLD | 0.65% |
SPY Top Holdings
| Name | Weight |
|---|---|
| NVIDIA CorporationNVDA | 7.61% |
| Apple Inc.AAPL | 6.54% |
| Microsoft CorporationMSFT | 4.78% |
| Amazon.com, Inc.AMZN | 3.72% |
| Broadcom Inc.AVGO | 2.86% |
| Alphabet Inc.GOOG | 2.53% |
| Meta Platforms, Inc.META | 2.31% |
| Tesla, Inc.TSLA | 1.66% |
| Berkshire Hathaway Inc.BRK.B | 1.51% |
Which One Should You Choose?
Choose SPY if...
you want the lowest fees and plan to buy and hold long-term. Over decades, the expense ratio difference compounds significantly.