IJK

IJK is a passive equity ETF designed to track the S&P MidCap 400 Growth Index—U.S. mid-cap companies inside the S&P 400 that score highest on “growth” traits like sales growth, rising valuations, and momentum.

It uses float-adjusted market-cap weighting (bigger companies get bigger weights based on shares actually available to trade) and typically holds a subset of index names via representative sampling rather than full replication.

The index is rebalanced quarterly, so the growth lineup can shift as company characteristics change.