Stock market indices, like the S&P 500, Dow Jones, and Nasdaq, track the performance of a select group of stocks, representing a sector, region, or economy. These indices provide insights into market trends, investor sentiment, and economic health. They are widely used by investors to gauge market performance and as benchmarks for mutual funds, ETFs, and other investment products. https://businesssuccesselites.com/finance/stock-market-indices-day-trading-advantages-strategies/