MDY vs RSP
State Street SPDR S&P MIDCAP 400 ETF Trust vs Invesco S&P 500 Equal Weight ETF
Last updated: 2026-04-02
State Street SPDR S&P MIDCAP 400 ETF Trust (MDY) is an exchange-traded fund issued by State Street 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.
Invesco S&P 500 Equal Weight ETF (RSP) is an exchange-traded fund issued by Invesco that provides exposure to large-cap U.S. equities across growth and value styles. It charges a moderate expense ratio of 0.20%. The fund offers a moderate dividend yield of 1.62%. Launched in 2003, the fund has a 23-year track record.
Quick Verdict
RSP has a slightly lower expense ratio (0.20% vs 0.24%), saving about $79 per $10,000 over 10 years. MDY has edged ahead over the past year (13.9% vs 10.2%).
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 |
|---|---|
| Ciena Corp | 102.57% |
| Coherent Corp | 90.18% |
| Lumentum Holdings Inc | 81.25% |
| Flex Ltd | 69.47% |
| Twilio Inc | 67.05% |
| United Therapeutics Corp | 65.23% |
| Pure Storage Inc | 65.05% |
| Casey's General Stores Inc | 63.89% |
| Curtiss-Wright Corp | 63.20% |
| Illumina Inc | 62.31% |
RSP Top Holdings
| Name | Weight |
|---|---|
| Invesco Private Prime Fund | 271.37% |
| Invesco Private Government Fund | 97.85% |
| Sandisk Corp. | 48.32% |
| Micron Technology, Inc. | 30.71% |
| Moderna, Inc. | 29.60% |
| Lam Research Corp. | 27.07% |
| Western Digital Corp. | 26.82% |
| Seagate Technology Holdings PLC | 26.61% |
| Lockheed Martin Corp. | 26.42% |
| Huntington Ingalls Industries, Inc. | 25.39% |
Which One Should You Choose?
Choose RSP 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 RSP if...
you prioritize dividend income and want higher regular distributions from your portfolio.