Zero-Cost Strategy or Zero Investment Portfolio: is a set of decisions that has a net zero-cost value associated with it and, therefore, requires no additional input from the investor to execute the order.

Zig Zag indicator: this indicator is used to help identify trends in stock prices. It eliminates random price fluctuations and attempts to show trend changes.

Z-share: is a class of mutual fund shares that employees of the fund's management company may own. Franklin Mutual Shares Fund (MUTHX) Z-shares have no initial or booking fees for employees.