About: http://webisa.webdatacommons.org/91987168

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Delta is the ???right number??? of shares to purchase to ensure that the portfolio reaches the same ending value whether the stock rises or falls.
http://www.w3.org/ns/prov#wasQuotedFrom	wyzant.com