#index funds

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Deep Dives 2026-07-16

Does dollar-cost averaging work? A data study of $500 a month into SPY versus one lump sum from 2016 to 2026, and what averaging in is really for.

Deep Dives 2026-07-09

SpaceX's fast-tracked Nasdaq-100 add and the giant closing auction that priced it: Matt Levine's account, verified and extended on our own tick tape.