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MDYvsIVOOETF Comparison
The ETFs SPDR S&P MIDCAP 400 ETF Trust (MDY) and Vanguard S&P Mid-Cap 400 ETF (IVOO) track the S&P MidCap 400 Total Return Index - USD and belong to the same industry segment: US Mid Cap. MDY's top 3 sector exposures are Industrials, Financials and Information Technology. In contrast, IVOO's top sector exposures are Industrials, Information Technology and Financials. MDY is more expensive with a Total Expense Ratio (TER) of 0.23%, versus 0.07% for IVOO. MDY is up 3.81% year-to-date (YTD) with -$798M in YTD flows. IVOO performs worse with 3.61% YTD performance, and +$74M in YTD flows. Run a side-by-side ETF comparison of MDY and IVOO below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
MDY vs IVOO performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | MDY IVOO | -4.43%-4.46% | +2.17%+0.98% | +3.81%+3.61% | +18.61%+19.17% | +47.78%+48.44% | +41.33%+40.12% |
| Flows | MDY IVOO | -$150M+$48M | -$274M+$94M | -$798M+$74M | -$1.59B+$346M | -$1.16B+$961M | -$2.33B+$1.25B |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | MDY IVOO | +15.13%+15.11% | +20.79%+20.87% | +18.02%+17.93% | +19.84%+19.58% |
| Max drawdown | MDY IVOO | -5.36%-5.39% | -15.01%-15.10% | -23.91%-24.02% | -23.91%-24.02% |
| Max drawdown duration | MDY IVOO | 16d17d | 46d46d | 379d379d | 379d379d |
MDY | IVOO | |
Last sale 3/12/2026 at 1:30 PM | $611.82 | $113.52 |
| Previous close 03/11/2026 | $624.53 | $115.84 |
| Consolidated volume 03/11/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Create an account to view replication metrics
MDY | IVOO | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
MDY | IVOO | |
|---|---|---|
| Last price | $611.82 | $113.52 |
| 1D performance | -2.04% | -2.01% |
| AuM | $24.31 B | $3.17 B |
| E/R | 0.23% | 0.07% |
Countries
Sectors
Diversification
Total weight of top 15 holdings out of 15
Total weight of top 15 holdings out of 15
Top 15 holdings
How have the MDY and IVOO ETFs performed in 2026?
As of March 10, 2026, MDY is up 3.81% year-to-date (YTD), while IVOO has returned 3.61%. That puts MDY better performer ahead so far this year.
Which ETF is attracting more investor money: MDY or IVOO?
Year-to-date, the MDY ETF saw -$798M in flows, compared to +$74M for IVOO.
Which ETF is more volatile: MDY or IVOO?
Over the past year, MDY had a volatility of 20.79%, while IVOO experienced 20.87%.
Which ETF is bigger: MDY or IVOO?
As of March 10, 2026, MDY holds $24.31 B in assets under management (AUM), while IVOO manages $3.17 B.
What sectors do the MDY and IVOO ETFs invest in?
MDY leans toward sectors like Industrials, Financials and Information Technology. Meanwhile, IVOO focuses on Industrials, Information Technology and Financials.
What are the top holdings of the MDY ETF and IVOO ETF?
MDY top holdings include CIENA, US19247G1076 and LUMENTUM HOLDINGS. IVOO holds in its top three: CIENA, US19247G1076 and LUMENTUM HOLDINGS.
Which ETF is more diversified: MDY or IVOO?
MDY holds 399 securities with 10.49% of its assets in the top 15. IVOO has 401 securities and a top 15 weight of 10.53%.
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