The SENSEX overnight ₹30 strangle: nine wins in ten, and a tail the backtest never met
Selling a ₹30 SENSEX call and put the day before expiry and holding them overnight won 90% of 156 trades over three years, comfortably beyond luck, and survived double costs. But losses are uncapped and there is no stop: a 5% gap on a calm week would cost about 1.7 years of average profit, and the sample never contained one.
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