IWBvsTACUETF Comparison
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iShares Russell 1000 ETF (IWB) and T. Rowe Price Active Core U.S. Equity ETF (TACU) belong to the same industry segment: US Large Cap. Both ETFs have the same top 3 sector exposures: Technology, Finance and Healthcare. IWB is more expensive with a Total Expense Ratio (TER) of 0.15%, versus 0.14% for TACU. IWB is up 12.44% year-to-date (YTD) with -$2.57B in YTD flows. TACU performs worse with 11.55% YTD performance, and +$5M in YTD flows. Run a side-by-side ETF comparison of IWB and TACU 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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IWB vs TACU performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/11/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IWB TACU | -0.99%-2.07% | +3.70%+4.98% | +12.44%+11.55% | +16.66%n/a | +75.47%n/a | +77.12%n/a |
| Flows | IWB TACU | -$167M+$1M | -$444M+$2M | -$2.57B+$5M | -$2.05B- | -$2.56B- | -$2.46B- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IWB TACU | +11.86%+11.93% | +13.00%n/a | +15.23%n/a | +17.35%n/a |
| Max drawdown | IWB TACU | -3.34%-3.20% | -8.86%n/a | -19.16%n/a | -25.17%n/a |
| Max drawdown duration | IWB TACU | 19d19d | 76dn/a | 126dn/a | 709dn/a |
Trading data
IWB | TACU | |
Last sale 9/11/2026 at 1:30 PM | $417.91 | $27.98 |
| Previous close 09/10/2026 | $414.32 | $27.73 |
| Consolidated volume 09/10/2026 | ||
| 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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TACU
is actively managed and doesn’t replicate an indexIWB | TACU | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/11/2026 at 1:30 PM
Live
Closed
IWB | TACU | |
|---|---|---|
| Last price | $417.91 | $27.98 |
| 1D performance | +0.87% | +0.90% |
| AuM | $48.92 B | $16.63 M |
| E/R | 0.15% | 0.14% |
Characteristics
IWB | TACU | |
|---|---|---|
| Management strategy | Passive | Active |
| Provider | iShares | T. Rowe Price |
| Benchmark | Russell 1000 Index | - |
| N° of holdings | 1011 | 558 |
| Asset class | Equities | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | May 15, 2000 | December 11, 2025 |
| ESG | No | No |
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Exposure
Countries
IWB
USA
97.59%
Other
2.41%
TACU
USA
97%
Other
3%
Sectors
IWB
Technology
42.37%
Finance
14.69%
Healthcare
9.22%
Consumer Non-Cycl.
8.65%
Industrials
8.55%
Other
16.51%
TACU
Technology
42.9%
Finance
14.9%
Healthcare
9.12%
Industrials
8.81%
Consumer Non-Cycl.
8.77%
Other
15.49%
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Diversification
IWB
Total weight of top 15 holdings out of 15
40.24%
TACU
Total weight of top 15 holdings out of 15
40.8%
Top 15 holdings
Data as of July 31, 2026
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%
TACU
NVIDIA Corp.
6.94%
Apple, Inc.
6.41%
Microsoft Corp.
5.01%
Alphabet, Inc.
3.75%
Amazon.com, Inc.
3.70%
Broadcom Inc.
2.72%
Alphabet, Inc.
1.83%
Meta Platforms, Inc.
1.82%
Micron Technology, Inc.
1.37%
Eli Lilly & Co.
1.35%
JPMorgan Chase & Co.
1.35%
Berkshire Hathaway, Inc.
1.25%
Tesla, Inc.
1.22%
Advanced Micro Devices, Inc.
1.12%
Visa, Inc.
0.96%
Frequently asked questions about IWB and TACU
How have the IWB and TACU ETFs performed in 2026?
As of September 11, 2026, IWB is up 12.44% year-to-date (YTD), while TACU has returned 11.55%. That puts IWB better performer ahead so far this year.
Which ETF is attracting more investor money: IWB or TACU?
Year-to-date, the IWB ETF saw -$2.57B in flows, compared to +$5M for TACU.
Which ETF is bigger: IWB or TACU?
As of September 11, 2026, IWB holds $48.92 B in assets under management (AUM), while TACU manages $16.63 M.
What sectors do the IWB and TACU ETFs invest in?
IWB leans toward sectors like Technology, Finance and Healthcare. Meanwhile, TACU focuses on Technology, Finance and Healthcare.
What are the top holdings of the IWB ETF and TACU ETF?
IWB top holdings include Apple, Inc., NVIDIA Corp. and Microsoft Corp.. TACU holds in its top three: NVIDIA Corp., Apple, Inc. and Microsoft Corp..
Which ETF is more diversified: IWB or TACU?
IWB holds 1023 securities with 40.24% of its assets in the top 15. TACU has 559 securities and a top 15 weight of 40.8%.
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