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IWBvsSPTMETF Comparison
iShares Russell 1000 ETF (IWB) belongs to the US Large Cap segment. SPDR Portfolio S&P 1500 Composite Stock Market ETF (SPTM) is part of the US All Cap segment. IWB's top 3 sector exposures are Information Technology, Financials and Communication Services. In contrast, SPTM's top sector exposures are Information Technology, Financials and Consumer Discretionary. IWB is more expensive with a Total Expense Ratio (TER) of 0.15%, versus 0.03% for SPTM. IWB is down -0.68% year-to-date (YTD) with -$501M in YTD flows. SPTM performs better with -0.38% YTD performance, and +$99M in YTD flows. Run a side-by-side ETF comparison of IWB and SPTM below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
IWB vs SPTM performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IWB SPTM | -2.28%-2.40% | -1.33%-1.02% | -0.68%-0.38% | +22.03%+21.98% | +81.12%+79.42% | +79.30%+82.20% |
| Flows | IWB SPTM | -$155M+$246M | -$52M+$459M | -$501M+$99M | +$813M+$824M | -$1.15B+$1.97B | +$23M+$3.16B |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IWB SPTM | +11.94%+11.57% | +18.43%+18.23% | +15.00%+14.85% | +17.13%+16.87% |
| Max drawdown | IWB SPTM | -3.31%-3.27% | -13.95%-13.79% | -19.16%-18.88% | -25.17%-24.17% |
| Max drawdown duration | IWB SPTM | 42d29d | 45d45d | 126d126d | 709d707d |
IWB | SPTM | |
Last sale 3/11/2026 at 1:30 PM | $370.42 | $82.10 |
| Previous close 03/10/2026 | $370.85 | $82.19 |
| Consolidated volume 03/10/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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IWB | SPTM | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
IWB | SPTM | |
|---|---|---|
| Last price | $370.42 | $82.10 |
| 1D performance | -0.12% | -0.11% |
| AuM | $45.46 B | $12.08 B |
| E/R | 0.15% | 0.03% |
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 IWB and SPTM ETFs performed in 2026?
As of March 10, 2026, IWB is down -0.68% year-to-date (YTD), while SPTM has lost -0.38%. That puts SPTM better performer ahead so far this year.
Which ETF is attracting more investor money: IWB or SPTM?
Year-to-date, the IWB ETF saw -$501M in flows, compared to +$99M for SPTM.
Which ETF is more volatile: IWB or SPTM?
Over the past year, IWB had a volatility of 18.43%, while SPTM experienced 18.23%.
Which ETF is bigger: IWB or SPTM?
As of March 10, 2026, IWB holds $45.46 B in assets under management (AUM), while SPTM manages $12.08 B.
What sectors do the IWB and SPTM ETFs invest in?
IWB leans toward sectors like Information Technology, Financials and Communication Services. Meanwhile, SPTM focuses on Information Technology, Financials and Consumer Discretionary.
What are the top holdings of the IWB ETF and SPTM ETF?
IWB top holdings include NVIDIA, APPLE and MICROSOFT-T. SPTM holds in its top three: NVIDIA, APPLE and MICROSOFT-T.
Which ETF is more diversified: IWB or SPTM?
IWB holds 1008 securities with 40.55% of its assets in the top 15. SPTM has 1504 securities and a top 15 weight of 40.58%.
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