Investment Glossary

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Weak form (market efficiency)

the amount of trading of a security or in the entire market during a given period. Especially heavy volume may indicate that important news has just been announced or is expected.

White knight

a security that permits its owner to purchase a specific number of company shares at a predetermined price. For example, a warrant may give an investor the right to purchase 10,000 shares of XYZ company at a price of $2.50 per share until October 1 2005. Warrants normally have limited lives. Their values are considerably more volatile than the values of the underlying shares. They are similar to call options in many respects.

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z