RT Journal Article SR Electronic T1 Stock splits and implied stock price volatility JF The Journal of Portfolio Management FD Institutional Investor Journals SP 55 OP 59 DO 10.3905/jpm.1986.409076 VO 12 IS 4 A1 Dan W. French A1 David A. Dubofsky YR 1986 UL https://pm-research.com/content/12/4/55.abstract AB