The S&P 1500 index is a comprehensive market index that blends the S&P 500, S&P 400, and S&P 600 indices, offering a complete view of the U.S. stock market. Launched in 1990, the S&P 1500 represents large-cap, mid-cap, and small-cap companies, giving investors diversified exposure across all market segments. The index covers a broad array of industries from technology to healthcare, financials, and consumer goods, providing a balanced approach to U.S. equities. With over three decades of data, the S&P 1500 has been a reliable tool for portfolio diversification, capturing the performance of both well-established companies and emerging growth sectors. By combining large, mid, and small-cap stocks, the index offers a more holistic view of the U.S. economy and allows investors to tailor their exposure to varying levels of risk and growth potential. The S&P 1500 is widely used by investors seeking broad exposure to the U.S. equity market while balancing both stable, large companies and dynamic, growth-oriented firms.