ETF Copilot

IWB vs LCTU: holdings overlap, shared companies and scores

As of October 9, 2026, IWB and LCTU overlap 71.7% by weight. iShares Russell 1000 ETF (IWB): Russell 1000 index. iShares U.S. Carbon Transition Readiness Aware Active ETF (LCTU): U.S. carbon transition leaders.

Updated October 9, 2026

Where IWB and LCTU trade against their own history

IWB trades at 24.4 times earnings, against its own median of 22.4, and is more expensive than 63% of its own last 9 years.

LCTU trades at 24.8 times earnings, against its own median of 24.7, and is more expensive than 51% of its own last 5 years.

What moved IWB and LCTU this week

IWB rose 1.2% in the week to October 9, 2026. The holdings that moved it most were Microsoft (+3.4%), Amazon.com (+4.3%) and Alphabet (+2.4%); Nvidia (−2.0%) pushed the other way.

LCTU rose 1.1% in the week to October 9, 2026. The holdings that moved it most were Microsoft (+3.4%), Amazon.com (+4.3%) and Apple (+0.9%); Nvidia (−2.0%) pushed the other way.

What do IWB and LCTU each hold?

What's inside IWB: Tech 44%, Magnificent 7 32%.

37% of IWB is its ten largest holdings.

What's inside LCTU: Tech 44%, Magnificent 7 32%.

36% of LCTU is its ten largest holdings.

How much do IWB and LCTU overlap? 71.7% by weight

As of October 9, 2026, IWB and LCTU overlap 71.7% by weight.

80% of IWB is already inside LCTU.

100% of LCTU is already inside IWB.

IWB holds 1,023 companies and LCTU holds 332; 328 are in both.

Computed by ETF Copilot from both funds' holdings rather than quoted from a data provider, and rebuilt nightly.

How does ETF Copilot score IWB and LCTU? 6.7 and 6.7 out of 10

As of October 9, 2026, ETF Copilot scores IWB 6.7 out of 10 and LCTU 6.7 out of 10.

They differ most on Value: IWB 3.1 and LCTU 5.5.

The five factor scores behind them are set out below, 0–10 and higher is better, ranked against every US equity ETF we track.

IWB vs LCTU — ETF Copilot factor scores, 0–10
FactorIWBLCTU
Growth7.37.2
Value3.15.5
Risk6.66.2
Quality8.17.9
Return7.86.6

IWB is the cheaper of the two at 0.15% a year

As of October 9, 2026, IWB charges 0.15% a year, yields 0.90% and holds $49.6B in assets across 1023 positions.

As of October 9, 2026, LCTU charges 0.30% a year, yields 0.94% and holds $1.2B in assets across 332 positions.

IWB vs LCTU — cost, income and size
MeasureIWBLCTU
Expense ratio0.15%0.30%
Dividend yield0.90%0.94%
Assets under management$49.6B$1.2B
Holdings1023332

Expense ratio, dividend yield and assets under management are reported by the fund and refreshed daily. Every other figure on this page is computed by ETF Copilot.

Compare with similar funds

Cite this

ETF Copilot, “IWB vs LCTU holdings overlap and scores”, as of October 9, 2026.
https://etf-copilot.com/compare/iwb-vs-lctu

  1. iShares Russell 1000 ETF (IWB)
  2. iShares U.S. Carbon Transition Readiness Aware Active ETF (LCTU)

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