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US SP 500

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US SP 500 chart

US SP 500 market insights

Pivot points are a technical indicator that traders use to predict upcoming areas of technical significance, such as support and resistance. They're calculated by averaging the high, low and closing prices of a previous period. That could be a day, a week or a month.

If a market is trading above its previous pivot point (known as P), it is seen as a bullish signal. If it is below, it is bearish.

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Last updated 8/27/2026, 11:59:59 PM

Support and resistance levels are a core part of technical analysis, providing crucial insight into possible future price reversals.

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US SP 500 overview

The US SP 500 (S&P 500 underlying) is an index that tracks the largest 500 companies in the United States and is one of the most widely followed indices in the world. Regarded as the best gauge of large-cap equities, the SP 500 offers a picture of the US stock market and the broader economy, including household names such as Apple, Microsoft, Amazon, and JPMorgan Chase. Learn how to trade the S&P 500.

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Indices explained

What is a benchmark index?

A benchmark index is a group of stocks that is used as a measure of the market as a whole. Most of the major indices you’ve heard of are benchmarks: including the S&P 500Dow Jones and FTSE 100.

Benchmark indices are useful to traders as a way to compare an individual security against the wider market. For example, say that you’ve found a US stock that has grown 20% over the past four years. You might compare that growth to the S&P 500 to see how it fares against 500 of the biggest US stocks.

If the S&P 500 has grown 40% over the past four years, then your stock has actually underperformed the wider market.

What's the best way to trade indices?

There are multiple ways to trade indices, including via futures, options, spread betting and CFDs. Each has its own benefits and drawbacks, so it’s worth doing your research to decide which works best for you.

Spread betting indices with StoneX Trading, for example, is tax free and enables you to trade 40+ major global indices. Trading index options, on the other hand, gives you access to advanced strategies such as straddles and strangles.

You can use your StoneX Trading account to trade CFDs or spread bet on indices and index options. Open your trading account now

What are indices used for?

Indices are used in a variety of ways by traders. They can give an instant idea of how a country’s economy is performing, can provide a useful way of assessing multiple stocks at once and provide lots of powerful trading opportunities.

At first, stock indices were created for the purpose of evaluating the performance of a stock market. If an index is rising, it means that the stocks it represents are moving up overall, generally a sign that businesses are doing well and economic health is strong. A falling index, on the other hand, is a signal that stocks are struggling, which may hint at deeper problems within an economy.

Stock indices are still used for this purpose today, but they’re also a popular asset class in their own right. It isn’t hard to see why – they enable you to take a position in a basket of the biggest stocks in an economy with a single trade, as well as offering high volatility and liquidity.

Learn more about how indices work.