Is IWB a good investment?

iShares Russell 1000 ETF (IWB) is a US large-cap blend ETF. As of September 11, 2026, ETF Copilot scores IWB 5.3 out of 10 — highest on Quality (8.2), lowest on Valuation (2.8). It trades at 25.0 times earnings, against its own median of 21.3. Its ten largest holdings are 35% of the fund.

Updated September 11, 2026

How is IWB rated? ETF Copilot scores iShares Russell 1000 ETF (IWB) 5.3 out of 10

As of September 11, 2026, ETF Copilot scores iShares Russell 1000 ETF (IWB) 5.3 out of 10 overall.

ETF Copilot scores (0–10 scale, higher is better):

Overall: 5.3 / 10
Growth: 3.2 / 10
Valuation: 2.8 / 10
Risk: 4.9 / 10
Quality: 8.2 / 10
Return: 7.4 / 10

What is IWB's expense ratio? 0.15% a year

As of September 11, 2026, IWB charges 0.15% a year, yields 1.10% and holds $49.4B in assets across 1020 positions.

iShares Russell 1000 ETF (IWB) — cost, income and size
Measure	IWB
Expense ratio	0.15%
Dividend yield	1.10%
Assets under management	$49.4B
Holdings	1020

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.

What stands out in IWB's data

Owns the largest U.S. stocks, tracking the Russell 1000 index.

Earns less on its capital than the typical large-cap blend fund — a slight drag on the returns it can generate from its holdings.

Return on invested capital of 26.3% trails the category median of 27.3%, though it sits above its own five-year median of 21.3%. The fund holds 1,020 names and charges 0.15% a year.

A broad-market foundation for a U.S.-anchored portfolio, covering the large-cap core.

Why did IWB move this week? It fell 1.2% in the week to September 11, 2026 — Nvidia and Microsoft drove it

IWB fell 1.2% in the week to September 11, 2026. The holdings that moved it most were Nvidia (−4.4%), Microsoft (−2.8%) and Eli Lilly (−3.8%); Advanced Micro Devices (+13.1%) pushed the other way.

Is IWB expensive right now? It trades at 25.0 times earnings, against its own median of 21.3

As of September 11, 2026, IWB is more expensive than 83% of its own 114 monthly readings since 2017 — 95 of those months were cheaper than today.

Trailing twelve-month, computed by ETF Copilot from the fund's holdings rather than quoted from a data provider, and rebuilt nightly.

What's inside IWB? 44% Tech

What's inside IWB: Size (Large 89%, Mid 11%, Small 1%); Geography (International 3%, US 97%); Tech 44.0%; Magnificent 7 31.3%; AI 21.8%; Semiconductors 16.1%; Memory 13.6%.

What are IWB's top holdings? The ten largest are 35% of the fund

Nvidia, Apple, Microsoft, Amazon.com, Alphabet, Broadcom, Meta Platforms, Micron Technology and Tesla are IWB's largest holdings, in that order.

Less concentrated than 72% of US Large Cap Blend ETFs.

Half of IWB's weight sits in its 29 largest positions, and once those weights are taken into account it behaves like 54 equally weighted holdings.

Cite this

ETF Copilot, “iShares Russell 1000 ETF (IWB) scores and holdings analysis”, as of September 11, 2026.
https://etf-copilot.com/etf/iwb