The S&P 500 has historically declined in September, an outcome that is especially plausible this year because the index trades at a very expensive valuation.

The S&P 500 just secured its best Memorial Day-to-Labor Day stretch of the last four decades, according to FactSet. But ...

Understanding the S&P 500’s historical performance isn’t just an academic exercise. It provides crucial context for investors deciding how best to prepare for their financial futures through ...

The ProShares Short S&P500 ETF is one of the longest-tenured ETFs delivering the opposite return of the S&P 500. Learn more ...

The S&P 500 added 0.5% on Wednesday, Sept. 3, 2025, bolstered by communications and tech stocks, while an uptick in job ...

History says the stock market could rebound in 2023 Since 1957, the S&P 500 has only fallen more sharply than 19.4% in three years: 1974, 2002, and 2008.

Every stock market decline in history has been a temporary problem In summary, the S&P 500 has typically followed January gains with above-average returns for the full year.

S&P 500 Shiller CAPE ratio data by YCharts. So, the next move for the S&P 500 could be a decline, if history is a guide.

Sixty-nine of the 500 original companies remain in the S&P; 500 today. Below are some key dates and milestones in the history of the S&P; 500.