SIZEvsSPYMETF Comparison
iShares MSCI USA Size Factor ETF (SIZE) and State Street SPDR Portfolio S&P 500 ETF (SPYM) belong to the same industry segment: US Large Cap. SIZE's top 3 sector exposures are Information Technology, Industrials and Financials. In contrast, SPYM's top sector exposures are Information Technology, Financials and Communication Services. SIZE is more expensive with a Total Expense Ratio (TER) of 0.15%, versus 0.02% for SPYM. SIZE is up 5.03% year-to-date (YTD) with -$452K in YTD flows. SPYM performs worse with 4.66% YTD performance, and +$32.56B in YTD flows. Run a side-by-side ETF comparison of SIZE and SPYM below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
SIZE vs SPYM performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SIZE SPYM | +8.35%+12.61% | +1.76%+2.60% | +5.03%+4.66% | +21.34%+30.69% | +52.85%+78.28% | +44.35%+83.26% |
| Flows | SIZE SPYM | +$8M+$8.06B | -$452K+$24.97B | -$452K+$32.56B | +$31M+$52.15B | -$33M+$89.37B | -$715M+$96.63B |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SIZE SPYM | +14.49%+15.26% | +12.59%+12.46% | +14.67%+14.91% | +17.10%+16.94% |
| Max drawdown | SIZE SPYM | -7.92%-8.88% | -7.92%-8.89% | -18.57%-18.74% | -24.05%-24.50% |
| Max drawdown duration | SIZE SPYM | 49d75d | 49d76d | 219d126d | 820d708d |
SIZE | SPYM | |
Last sale 4/28/2026 at 7:36 PM | $167.89 | |
| Previous close 04/28/2026 | $169.34 | |
| Consolidated volume 04/28/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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SIZE | SPYM | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
SIZE | SPYM | |
|---|---|---|
| Last price | $167.89 | – |
| 1D performance | -0.86% | – |
| AuM | $406.03 M | $135.60 B |
| E/R | 0.15% | 0.02% |
SIZE | SPYM | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | State Street Investment Management |
| Benchmark | MSCI USA Low Size Index | S&P 500 Index |
| N° of holdings | 503 | 478 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | April 16, 2013 | November 8, 2005 |
| ESG | No | No |
Countries
Sectors
Diversification
Total weight of top 15 holdings out of 15
Total weight of top 15 holdings out of 15
