iShares Micro-Cap ETF (IWC) is a US small-cap ETF. As of October 28, 2026, ETF Copilot scores IWC 3.1 out of 10 — highest on Return (5.1), lowest on Quality (0.3). It trades at 13.6 times earnings, against its own median of 12.9. Its ten largest holdings are 6% of the fund.
What stands out in IWC's data
An ETF tracking US micro-cap stocks, the smallest publicly traded companies.
Profitability trails most peers — its returns depend more on small-company growth than on operating strength.
Its EBITDA margin of 13.7% trails the 20.3% category median, and its 0.60% annual fee is higher than the typical 0.2%.
Adds exposure to the smallest US companies, offering a distinct risk-and-return pattern from larger stocks.
Why did IWC move this week? It rose 2.0% in the week to October 28, 2026 — Replimune and Rapid7 drove it
IWC rose 2.0% in the week to October 28, 2026. The holdings that moved it most were Replimune (+37.0%), Rapid7 (+30.9%) and Absci (+18.3%); Sellas Life Sciences (−14.5%) pushed the other way.
How is IWC rated? ETF Copilot scores iShares Micro-Cap ETF (IWC) 3.1 out of 10
As of October 28, 2026, ETF Copilot scores iShares Micro-Cap ETF (IWC) 3.1 out of 10 overall.
ETF Copilot scores (0–10 scale, higher is better):
- Overall: 3.1 / 10
- Growth: 3.4 / 10
- Value: 4.2 / 10
- Risk: 1.6 / 10
- Quality: 0.3 / 10
- Return: 5.1 / 10
Is IWC expensive right now? It trades at 13.6 times earnings, against its own median of 12.9
As of October 28, 2026, IWC is more expensive than 58% of its own last 5 years.
Trailing 12 months, built from IWC's holdings. How we calculate this →
What's inside IWC? 13% Tech
What's inside IWC: Size (Large 0%, Mid 0%, Small 100%); Geography (International 3%, US 97%); Tech 12.6%; Semiconductors 1.4%.
What are IWC's top holdings? The ten largest are 6% of the fund
Caredx, Penguin Solutions, Nurix Therapeutics, Viridian Therapeutics ORS, Sellas Life Sciences, Interface, Strive, Ouster, Innodata and Dime Community Bancshares are IWC's largest holdings, in that order.
Less concentrated than 73% of US Small Cap ETFs.
Half of IWC's weight sits in its 201 largest positions, and once those weights are taken into account it behaves like 537 equally weighted holdings.
What is IWC's expense ratio? 0.60% a year
As of October 28, 2026, IWC charges 0.60% a year, yields 1.07% and holds $1.2B in assets across 1353 positions.
| Measure | IWC |
|---|---|
| Expense ratio | 0.60% |
| Dividend yield | 1.07% |
| Assets under management | $1.2B |
| Holdings | 1353 |
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.
Cite this
ETF Copilot, “iShares Micro-Cap ETF (IWC) scores and holdings analysis”, as of October 28, 2026.
https://etf-copilot.com/etf/iwc
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