The market capitalization of the S&P 500 (SPX) grew by 13% during the third quarter of 2025, more than double the pace it rose during the preceding quarter.
Fall 2025 Snapshot Of The S&P 500's Market Cap
The market capitalization of the S&P 500 (SPX) grew by 13% during the third quarter of 2025, more than double the pace it rose during the preceding quarter.