RT Journal Article SR Electronic T1 Alpha is Volatility Times IC Times Score JF The Journal of Portfolio Management FD Institutional Investor Journals SP 9 OP 16 DO 10.3905/jpm.1994.409482 VO 20 IS 4 A1 Richard C. Grinold YR 1994 UL https://pm-research.com/content/20/4/9.abstract AB