LCTUvsIWBETF Comparison
ETF 1
LCTU
BlackRock U.S. Carbon Transition Readiness ETF
VS
BlackRock U.S. Carbon Transition Readiness ETF (LCTU) belongs to the segment. iShares Russell 1000 ETF (IWB) is part of the US Large Cap segment. Both ETFs have the same top 3 sector exposures: Technology, Finance and Healthcare. LCTU is more expensive with a Total Expense Ratio (TER) of 0.3%, versus 0.15% for IWB. LCTU is up 11.08% year-to-date (YTD) with -$321M in YTD flows. IWB performs better with 12.29% YTD performance, and -$2.36B in YTD flows. Run a side-by-side ETF comparison of LCTU 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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LCTU vs IWB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/17/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | LCTU IWB | -1.50%-0.66% | +3.48%+2.18% | +11.08%+12.29% | +15.25%+15.69% | +73.23%+76.61% | +73.42%+81.14% |
| Flows | LCTU IWB | +$4M+$146M | -$271M-$277M | -$321M-$2.36B | -$308M-$1.96B | -$891M-$2.60B | -$796M-$2.25B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | LCTU IWB | +11.07%+11.19% | +13.03%+13.05% | +15.31%+15.22% | +17.41%+17.34% |
| Max drawdown | LCTU IWB | -3.26%-3.34% | -9.37%-8.86% | -19.80%-19.16% | -25.94%-25.17% |
| Max drawdown duration | LCTU IWB | 35d19d | 93d76d | 127d126d | 744d709d |
Trading data
LCTU | IWB | |
Last sale 9/18/2026 at 1:30 PM | $81.71 | $416.02 |
| Previous close 09/17/2026 | $81.72 | $415.92 |
| Consolidated volume 09/17/2026 | ||
| 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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LCTU
is actively managed and doesn’t replicate an indexLCTU | 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 9/18/2026 at 1:30 PM
Live
Closed
LCTU | IWB | |
|---|---|---|
| Last price | $81.71 | $416.02 |
| 1D performance | -0.02% | +0.02% |
| AuM | $1.24 B | $48.94 B |
| E/R | 0.3% | 0.15% |
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Exposure
Countries
LCTU
USA
98.48%
Other
1.52%
IWB
USA
97.59%
Other
2.41%
Sectors
LCTU
Technology
43.01%
Finance
14.56%
Healthcare
9.06%
Industrials
8.45%
Consumer Non-Cycl.
8.36%
Other
16.55%
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
LCTU
Total weight of top 15 holdings out of 15
39.92%
IWB
Total weight of top 15 holdings out of 15
40.24%
Top 15 holdings
Data as of July 31, 2026
LCTU
Apple, Inc.
7.65%
NVIDIA Corp.
7.20%
Microsoft Corp.
4.09%
Amazon.com, Inc.
2.82%
Alphabet, Inc.
2.60%
Broadcom Inc.
2.38%
Alphabet, Inc.
2.01%
Meta Platforms, Inc.
1.82%
Bank of America Corp.
1.63%
Micron Technology, Inc.
1.38%
Eli Lilly & Co.
1.30%
Tesla, Inc.
1.29%
Berkshire Hathaway, Inc.
1.27%
Advanced Micro Devices, Inc.
1.27%
JPMorgan Chase & Co.
1.21%
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 LCTU and IWB
How have the LCTU and IWB ETFs performed in 2026?
As of September 17, 2026, LCTU is up 11.08% year-to-date (YTD), while IWB has returned 12.29%. That puts IWB better performer ahead so far this year.
Which ETF is attracting more investor money: LCTU or IWB?
Year-to-date, the LCTU ETF saw -$321M in flows, compared to -$2.36B for IWB.
Which ETF is more volatile: LCTU or IWB?
Over the past year, LCTU had a volatility of 13.03%, while IWB experienced 13.05%.
Which ETF is bigger: LCTU or IWB?
As of September 17, 2026, LCTU holds $1.24 B in assets under management (AUM), while IWB manages $48.94 B.
What sectors do the LCTU and IWB ETFs invest in?
LCTU leans toward sectors like Technology, Finance and Healthcare. Meanwhile, IWB focuses on Technology, Finance and Healthcare.
What are the top holdings of the LCTU ETF and IWB ETF?
LCTU top holdings include Apple, Inc., NVIDIA Corp. and Microsoft Corp.. IWB holds in its top three: Apple, Inc., NVIDIA Corp. and Microsoft Corp..
Which ETF is more diversified: LCTU or IWB?
LCTU holds 325 securities with 39.92% of its assets in the top 15. IWB has 1023 securities and a top 15 weight of 40.24%.
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