Illustration: index funds recycle ~6% of its dividend (Modigliani-Miller fails), momentum is cap-weight autocorrelation, and DDM shows mega-caps far above cash-return value.
Worked example of endogenous leverage and volatility drag — DCA break-even for 3x semis is ~150% annualized; retail buy-and-hold use is "a terrible strategy."
Listing engineered as index arbitrage: fast-track Nasdaq-100 inclusion + ~3:1 float magnification made the passive bid the insiders' exit while retail was locked up; ran past $3T, then ~$1.25T.
In one line: Passive investing is not passive — it must transact into a market far less elastic than theory assumes, so flows (not fundamentals) now set prices, concentrate the index, and route the alpha to market makers; stay passive while flows are positive, but expect the elevator down when they turn.
Flows are the price. $1 of flow adds ~$5 of market cap historically (Gabaix-Koijen), ~$22 today by his estimate and approaching $100 for the largest names (NVDA) — the engine of mega-cap concentration. 2026-SEP-11
Factors are shadows of flow. Momentum is cap-weight autocorrelation; the value factor is mechanically anti-correlated with the passive factor; active managers are ~7% of trading vs ~85% in 1995.
The alpha moved to facilitators. Market makers (Citadel, Jane Street) buy the order flow of noise traders (Robinhood) and sunshine traders (Vanguard, 401k target-date money) and hunt the remaining active managers.
Listings as index arbitrage. SPAC fast-track (closed by CRSP Sept 2022) is back as fast-track IPOs with inflated float — SpaceX's run past $3T and slide to ~$1.25T; only mega-caps can use it.
Levered retail products are a trap. 3x ETFs (SOXL) create endogenous flow and volatility drag — ~150% annualized break-even for a DCA holder.
Practical stance. A systemic, non-diversifiable risk: keep investing passively while net inflows last; top-25 stocks look ~1/15th of price on DDM, and when flows turn negative the decline is levered — don't anchor on "down 50% is a buy."
Transcripts
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