S&P 500 index
Definition
The S&P 500 Index, formally the Standard & Poor's 500, is a stock market index that measures the stock performance of 500 large companies listed on U.S. stock exchanges, serving as a key benchmark for the overall U.S. equity market.
It is market-capitalization weighted, meaning larger companies have greater influence, and is widely used by investors to gauge economic health and guide portfolio decisions.
Examples
My crystal ball says the S&P 500 index will moon this quarter, but my broker just wants my lunch money.
When the S&P 500 index sneezes, Wall Street catches a cold—and my fantasy football league pretends not to notice.
Grandpa's advice: 'Buy low, sell high on the S&P 500 index.' Mine: 'Buy coffee, sell sanity.'
The S&P 500 index hit a new high, proving that 500 companies can party harder than my group chat.