IWM vs VO: how much do they overlap?
iShares Russell 2000 ETF (IWM) · Vanguard Mid-Cap ETF (VO)
overlap by weight · 1 shared holdings
IWM: 1934 holdings (as of 2026-03-31) · VO: 289 holdings (as of 2026-03-31)
Low overlap
What this means
IWM and VO hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
Overlap by weight sums the smaller of the two funds' weights for every stock they both hold — it answers "how much of my money is in the same stocks either way?" See methodology.
Top shared holdings
| Company | Ticker | in IWM | in VO |
|---|---|---|---|
| Bloom Energy Corp. | BE | 1.01% | 0.2% |
FAQ
How much do IWM and VO overlap?
IWM and VO have a 0.2% overlap by weight, sharing 1 holdings (out of 1934 in IWM and 289 in VO), based on official issuer holdings as of 2026-03-31.
What does 0.2% overlap mean?
IWM and VO hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
Which stocks do IWM and VO both hold?
The largest shared positions are Bloom Energy Corp.. The full list of top shared holdings with weights in each fund is shown on this page.