Rubenstein, Mark

Rubenstein, Mark

(1944– ) educator, financier; born in Seattle, Wash. A Harvard-educated professor of finance at the University of California: Berkeley, he and two colleagues devised the investment hedging technique known as portfolio insurance, and formed a firm, LOR, to market the strategy in 1981. The technique appeared to be only partly successful in limiting damage during the stock market tumble of 1987.