SPTMvsIWBETF Comparison
ETF 1
SPTM
State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF
This fund is part of
US All Cap
-0.41%
VS
State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF (SPTM) belongs to the US All Cap segment. iShares Russell 1000 ETF (IWB) is part of the US Large Cap segment. SPTM's top 3 sector exposures are Technology, Finance and Consumer Non-Cyclicals. In contrast, IWB's top sector exposures are Technology, Finance and Healthcare. SPTM is less expensive with a Total Expense Ratio (TER) of 0.03%, versus 0.15% for IWB. SPTM is up 11.31% year-to-date (YTD) with +$535M in YTD flows. IWB performs worse with 10.93% YTD performance, and -$2.38B in YTD flows. Run a side-by-side ETF comparison of SPTM and IWB below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
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SPTM vs IWB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SPTM IWB | -2.71%-2.57% | +0.52%+0.80% | +11.31%+10.93% | +15.49%+14.82% | +73.86%+74.48% | +77.90%+74.41% |
| Flows | SPTM IWB | +$201M+$125M | +$242M-$278M | +$535M-$2.38B | +$803M-$1.94B | +$2.11B-$2.62B | +$3.28B-$2.37B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SPTM IWB | +11.25%+11.45% | +12.85%+13.02% | +15.08%+15.23% | +17.08%+17.35% |
| Max drawdown | SPTM IWB | -3.31%-3.34% | -8.72%-8.86% | -18.88%-19.16% | -24.17%-25.17% |
| Max drawdown duration | SPTM IWB | 34d19d | 63d76d | 126d126d | 707d709d |
Trading data
SPTM | IWB | |
Last sale 9/17/2026 at 1:30 PM | $92.30 | $415.92 |
| Previous close 09/16/2026 | $91.32 | $411.40 |
| Consolidated volume 09/16/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of August 31, 2026
1-year trailing difference
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SPTM | IWB | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/17/2026 at 1:30 PM
Live
Closed
SPTM | IWB | |
|---|---|---|
| Last price | $92.30 | $415.92 |
| 1D performance | +1.07% | +1.10% |
| AuM | $13.87 B | $48.33 B |
| E/R | 0.03% | 0.15% |
Characteristics
SPTM | IWB | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | State Street Investment Management | iShares |
| Benchmark | S&P Composite 1500 Index | Russell 1000 Index |
| N° of holdings | 1497 | 1011 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | October 4, 2000 | May 15, 2000 |
| ESG | No | No |
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Exposure
Countries
SPTM
USA
96.36%
Other
3.64%
IWB
USA
97.59%
Other
2.41%
Sectors
SPTM
Technology
42.23%
Finance
14.65%
Consumer Non-Cycl.
9.12%
Healthcare
9%
Industrials
8.47%
Other
16.53%
IWB
Technology
42.37%
Finance
14.69%
Healthcare
9.22%
Consumer Non-Cycl.
8.65%
Industrials
8.55%
Other
16.51%
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Diversification
SPTM
Total weight of top 15 holdings out of 15
40.55%
IWB
Total weight of top 15 holdings out of 15
40.24%
Top 15 holdings
Data as of July 31, 2026
SPTM
NVIDIA Corp.
6.96%
Apple, Inc.
6.49%
Microsoft Corp.
4.94%
Amazon.com, Inc.
3.81%
Alphabet, Inc.
2.99%
Broadcom Inc.
2.64%
Alphabet, Inc.
2.41%
Meta Platforms, Inc.
1.75%
JPMorgan Chase & Co.
1.35%
Berkshire Hathaway, Inc.
1.34%
Micron Technology, Inc.
1.33%
Eli Lilly & Co.
1.30%
Tesla, Inc.
1.25%
Advanced Micro Devices, Inc.
1.11%
Johnson & Johnson
0.89%
IWB
Apple, Inc.
7.01%
NVIDIA Corp.
6.62%
Microsoft Corp.
4.88%
Amazon.com, Inc.
3.32%
Alphabet, Inc.
2.83%
Broadcom Inc.
2.62%
Alphabet, Inc.
2.31%
Meta Platforms, Inc.
1.72%
Micron Technology, Inc.
1.43%
Berkshire Hathaway, Inc.
1.38%
JPMorgan Chase & Co.
1.36%
Eli Lilly & Co.
1.34%
Tesla, Inc.
1.31%
Advanced Micro Devices, Inc.
1.15%
ExxonMobil Holdings Corp.
0.95%
Frequently asked questions about SPTM and IWB
How have the SPTM and IWB ETFs performed in 2026?
As of September 16, 2026, SPTM is up 11.31% year-to-date (YTD), while IWB has returned 10.93%. That puts SPTM better performer ahead so far this year.
Which ETF is attracting more investor money: SPTM or IWB?
Year-to-date, the SPTM ETF saw +$535M in flows, compared to -$2.38B for IWB.
Which ETF is more volatile: SPTM or IWB?
Over the past year, SPTM had a volatility of 12.85%, while IWB experienced 13.02%.
Which ETF is bigger: SPTM or IWB?
As of September 16, 2026, SPTM holds $13.87 B in assets under management (AUM), while IWB manages $48.33 B.
What sectors do the SPTM and IWB ETFs invest in?
SPTM leans toward sectors like Technology, Finance and Consumer Non-Cyclicals. Meanwhile, IWB focuses on Technology, Finance and Healthcare.
What are the top holdings of the SPTM ETF and IWB ETF?
SPTM top holdings include NVIDIA Corp., Apple, Inc. and Microsoft Corp.. IWB holds in its top three: Apple, Inc., NVIDIA Corp. and Microsoft Corp..
Which ETF is more diversified: SPTM or IWB?
SPTM holds 1502 securities with 40.55% of its assets in the top 15. IWB has 1023 securities and a top 15 weight of 40.24%.
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