iShares Russell 2000 Index Fund (IWM)

Israel Englander's Millennium Management has significant options exposure to the iShares Russell 2000 ETF, but investors need to examine why that's the case.

If you want to lock in future gains from today's small-cap stocks, these two ETFs could be good options.

Is its current momentum worth investors hopping on the train?

AVUV, VB, and IWM offer distinct small-cap ETF strategies, with 2025 YTD returns of 16% to 22%, expense ratios from 0.03% to 0.25%, and varying diversification levels.