URL details: teddykoker.com/2019/05/creating-a-survivorship-bias-free-sp-500-dataset-with-python/
URL title:
Creating a Survivorship Bias-Free S&P 500 Dataset with Python | Teddy Koker
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When developing a stock trading strategy, it is important that the backtest be as accurate as possible. In some of my previous strategies, I have noted that the backtest did not account for survivorship bias. Survivorship bias is a form of selection bias caused by only focusing on assets that have already passed some sort of selection process.
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