In finance, a hedge is an investment that is taken out specifically to reduce or cancel out the risk in another investment. Hedging is a strategy designed to minimize exposure to an unwanted business risk, particularly in inflationary economies, while still allowing the business to profit from an investment activity.

The quote is about hedging strategy not hedge fund, and wiki isn't a reliable source, only a place to start with

As the name implies, hedge funds often seek to offset potential losses in the principal markets they invest in by hedging their investments using a variety of methods, most notably short selling. However, the term "hedge fund" has come in modern parlance to be applied to many funds that do not actually hedge their investments, and in particular to funds using short selling and other "hedging" methods to increase risk, and therefore return, rather than reduce it.