S&P 500 IndexS&P 500 IndexS&P 500 Index

S&P 500 Index

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Key data points


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Index info


The Standard & Poor's 500 (SPX) tracks 500 of the largest publicly traded companies in the US. Stocks are chosen based on strict size, liquidity, and profitability rules to ensure representation across all major market sectors. The index uses a market-cap weighting method, meaning massive corporations like Apple, Microsoft, and Nvidia have a much larger impact on its price movements than smaller firms. Traders use the SPX to gain broad exposure to US large-cap equities.

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Displays a symbol's value movements over previous years to identify recurring trends.

Frequently asked questions


S&P 500 Index reached its highest quote on Oct 6, 2026 — 7,852.6 USD. See more data on the S&P 500 Index chart.
The lowest ever quote of S&P 500 Index is 666.3 USD. It was reached on Mar 6, 2009. See more data on the S&P 500 Index chart.
S&P 500 Index is just a number that lets you track performance of the instruments comprising the index, so you can't invest in it directly. But you can buy S&P 500 Index futures or funds or invest in its components.