Take the above concept to understand some investor’s bias, when a stock gets included in popular indices like Nifty50, based on past performance. The above average performance may not sustain after the inclusion, as it is just reverting to its long-term mean.
US stock: S&P 500 ends lower as investors weigh data, Middle East tensions
The S&P 500’s streak came to an end, falling from its peak as weaker retail sales suggested caution among consumers. Despite a strong outlook, Applied
August 14, 2026