IDMO vs SPY
Invesco S&P International Developed Momentum ETF vs State Street SPDR S&P 500 ETF Trust
Quick Verdict
SPY has a lower expense ratio. IDMO delivered stronger 1-year returns. SPY offers more diversification with 505 holdings.
Side-by-Side Comparison
| Metric | IDMO | SPY | Winner |
|---|---|---|---|
| Expense Ratio | 0.25% | 0.09% | |
| AUM | $4.3B | $821.1B | |
| Dividend Yield | 3.30% | 1.01% | |
| Holdings | 203 | 505 | |
| YTD Return | +12.47% | +12.93% | |
| 1Y Return | +21.88% | +20.62% | |
| 3Y Return (annualized) | +26.98% | +22.00% | |
| 5Y Return (annualized) | +15.86% | +13.33% | |
| Volatility (annualized) | 17.3% | 15.3% | |
| Max Drawdown | -40.6% | -56.5% | |
| Fund Family | Invesco (US) | State Street Investment Management | |
| Category | Equity | Equity | |
| Inception | Feb 23, 2012 | Jan 22, 1993 |
IDMO vs SPY Performance
Invesco S&P International Developed Momentum ETF (IDMO) is a ETF from Invesco (US) and State Street SPDR S&P 500 ETF Trust (SPY) is a ETF from State Street Investment Management. Over the past year IDMO returned +21.88% while SPY returned +20.62%. Year to date, IDMO is up 12.47% versus a gain of 12.93% for SPY.
Over three years, IDMO compounded at +26.98% per year against +22.00% for SPY; over five years the annualized figures are +15.86% and +13.33% respectively. Across the full 15-year window we track, SPY has the edge at +8.82% annualized vs +7.57%. Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
IDMO has been the more volatile fund, with annualized monthly volatility of 17.3% compared with 15.3% for SPY. Lower volatility generally means a smoother ride, though it often comes with lower long-run returns.
The deepest peak-to-trough decline in our data was -40.6% for IDMO and -56.5% for SPY. Drawdown depth is worth weighing if you expect to sell during market stress rather than ride it out.
The two funds' monthly returns correlate at 0.75. They usually move together, but the gap leaves some room for diversification.
Fees and Cost Over Time
IDMO charges 0.25% per year while SPY charges 0.09%. On a $10,000 position that is $25 vs $9 annually, a gap of $16 per year that compounds over a long holding period. On income, IDMO currently yields 3.30% against 1.01% for SPY.
Holdings Overlap
IDMO and SPY share 0 holdings out of 693 unique holdings combined, representing a 0.0% weight overlap.
Moderate overlap means holding both could provide meaningful diversification benefits.
Frequently Asked Questions
Which is cheaper, IDMO or SPY?
IDMO has an expense ratio of 0.25% while SPY charges 0.09%. SPY is the cheaper option. On a $10,000 investment, that is $16 per year of difference.
Which performed better, IDMO or SPY?
Over the past year IDMO returned +21.88% vs +20.62% for SPY, so IDMO leads on 1-year performance. Over the longest common window we track (15 years), IDMO annualized +7.57% vs +8.82% for SPY. Past performance does not guarantee future results.
Which is riskier, IDMO or SPY?
IDMO has been the more volatile fund at 17.3% annualized versus 15.3% for SPY. Worst drawdown: IDMO -40.6% vs SPY -56.5%.
Should I hold both IDMO and SPY?
IDMO and SPY have a monthly-return correlation of 0.75, so combining them can provide real diversification depending on your allocation goals.
What is the holdings overlap between IDMO and SPY?
IDMO and SPY share 0 common holdings with a 0.0% weight overlap. Combined, they hold 693 unique securities.
Which pays a higher dividend, IDMO or SPY?
IDMO yields 3.30% while SPY yields 1.01%, so IDMO currently pays the higher dividend yield.
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