SpaceX Joins Nasdaq-100, Triggering Short vs. Passive

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- SpaceX will join the Nasdaq-100 index, and Bloomberg's headline frames the move as a clash between short sellers and the passive billions tracking the benchmark.
- 401(k) savers face new indirect exposure to SpaceX's volatility through index inclusion, per Yahoo Finance, even as Barron's flags that SpaceX stock has been in a slump heading into the addition.
Why it matters: Index inclusion forces passive funds to buy SpaceX shares regardless of valuation, directly countering any short-seller positioning and exposing retirement savers in index funds to a stock that Barron's notes has been sliding.
