jun 08
0DTE 期权：当日到期合约的交易逻辑与风险结构
0DTE 期权在单个交易日内完成建仓与结算，本文解释它的 Gamma 特征、做市商冲击、常见策略，以及为什么它可能放大尾部和尾盘波动。
Yuan Wang
Writing on AI, quantitative research, and signal processing — notes, derivations, and the occasional dead end.
2026
may 04
Reading the volatility surface
A walk through what implied volatility actually means, why the smile and term structure refuse to flatten, and a practical SVI parameterization.