CRSP 6-10 Index is a small-cap index created and maintained by the Center for Research in Security Prices (CRSP) at the University of Chicago's Graduate School of Business. CRSP capitalization-based indices include common stocks listed on the NYSE, AMEX and the NASDAQ National Market. The CRSP 6-10 refers to the sixth through tenth deciles (smallest) andas such represents a small-cap index.