[S&P 500 rebalancing hits tomorrow](https://www.marketwatch.com/story/an-s-p-500-shakeup-is-hours-away-these-stocks-could-soon-earn-spots-in-the-index-a9b64d67?mod=mw_rss_topstories) — Marvell, Reddit, and a mortgage name getting included. Everyone's focused on the initial flow tsunami, but here's what actually matters: institutional holders of these names have been accumulating into retail capitulation.

Research these companies