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Modern Market Structure

  • The 0DTE Complex — Same-day expiring SPX/SPY options — growth, expiration mechanics, dealer positioning, pin risk, and why short-dated gamma overwhelms the books' 30–45 DTE framing. status: draft
  • Dispersion and Correlation — Index volatility versus constituent volatility, correlation as the residual spread, and one-paragraph treatments of dispersion-trade concept, mechanics, and edge source. status: draft
  • Options Microstructure Since 2012 — Zero commissions, penny-wide index options, extended hours, and cash-settlement advantages — what changed for retail premium sellers since TOMIC was written. status: draft
  • VIX ETP Flows — VIX exchange-traded products — futures-roll mechanics, contango bleed, the Volmageddon rebalancing loop, and ETP flows as a volatility-regime variable. status: draft

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