The Center for Research in Security Prices (CRSP) is a leading provider of historical stock market and investable index data. It offers comprehensive databases for NYSE, AMEX, and NASDAQ stock markets, including security prices, returns, and volumes, as well as mutual funds and real estate data. CRSP's target audience includes academic researchers and investment professionals. Its unique selling proposition is providing survivor bias-free data, ensuring accurate research and analysis. CRSP is affiliated with the University of Chicago Booth School of Business and is renowned for its rigorous data quality and extensive historical coverage[1][2][3].