S&P 500 is currently trading at $655.83. The previous daily close was $655.24.The current price is within 0.1% of the previous daily close.The session state is determined by comparing the current price to the previous daily close. A bullish session indicates the price is above the previous close, a bearish session indicates it is below, and a flat session indicates minimal change within 0.1%. Daily Close values are calculated using official market settlement rules — see our methodology.