MDY vs PDBC
State Street SPDR S&P MIDCAP 400 ETF Trust vs Invesco Optimum Yield Diversified Commodity Strategy No K-1 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 Optimum Yield Diversified Commodity Strategy No K-1 ETF (PDBC) is an exchange-traded fund issued by Invesco that provides exposure to broad commodities securities. It charges a high expense ratio of 0.59%. The fund offers an attractive dividend yield of 2.93%. Launched in 2014, the fund has a 12-year track record.
Quick Verdict
MDY is significantly cheaper at 0.24% vs 0.59% expense ratio, saving you approximately $676 per $10,000 invested over 10 years. Over the past year, PDBC has significantly outperformed with a 26.4% return vs 13.9%. Income investors may prefer PDBC for its higher yield (2.9% vs 1.1%).
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 3 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% |
PDBC Top Holdings
| Name | Weight |
|---|---|
| Invesco Premier U.S. Government Money Portfolio | 7583.94% |
| Invesco Liquidity Funds PLC, Invesco US Dollar Liquidity Portfolio | 1764.83% |
| N/A | 39.28% |
Which One Should You Choose?
Choose MDY if...
you want the lowest fees and plan to buy and hold long-term. Over decades, the expense ratio difference compounds significantly.
Choose PDBC if...
recent performance momentum matters to your strategy. Note that past performance doesn't guarantee future results.
Choose PDBC if...
you prioritize dividend income and want higher regular distributions from your portfolio.