Options Wall

Options Wall is Maimai's online journal about single-leg, long-premium SPX 0DTE trading. Nine main chapters, a guide, prologue, epilogue and appendix introduce Call Wall, Put Wall and Gamma Flip, then explain how GEX and dealer hedging relate to intraday market structure.

The book connects options walls with VWAP, price action, liquidity and time decay. Topics include false breaks, breakouts, market regimes, exits, events and position sizing. Reviews of seven historical trading days put data, structure and execution side by side. The appendix adds terminology, quick-reference material and references.

Chinese and English editions are available with theme and text-size controls. The material draws on the author's trading habits and historical conditions. Readers familiar with Calls and Puts can use it to study structural analysis, while reassessing example parameters against current market conditions.