The author runs systematic short volatility strategies (iron condors, strangles) on SPX weekly options, which are inherently neutral, range-bound strategies. The entire post is about optimizing the execution of these short volatility trades. The author's goal is not to express a directional view on the S&P 500, but to more efficiently harvest premium (theta) and volatility risk premium (VRP) from it, which is a market-neutral endeavor. The post details a sophisticated, market-neutral approach to trading SPX options. The focus is on improving the profitability of a core short volatility strategy, implying a continued belief in its viability, which is a mildly bullish view on the efficiency of the strategy, not the underlying index direction. A sharp, sustained increase in realized volatility (a "volatility event") would invalidate short volatility strategies, causing significant losses regardless of execution quality. Changes in market microstructure could alter the intraday spread patterns the author has identified.
SPY
HIGH
Mar 16, 19:48
Key Points
['Author runs short volatility strategies (iron condors).', 'Focus is on execution optimization, not directional bets.', 'Slippage is a major cost, exceeding commissions.', 'Intraday bid-ask spreads have a predictable pattern.', 'Timing entries for tighter spreads improves P&L.']
March 16, 2026 at 19:48