"Stock decline" refers to the decrease in the value or price of a particular stock or stocks in general. It means that the stock's price is going down, which indicates a loss in value or a reduction in the market price of the stock. Full definition
All four bank stocks declined in the first trading session after their results. (nbr.com)
The latest stock market turmoil, in the fourth quarter of 2008 when stocks declined significantly, has left retail investors with a larger challenge than ever before. (canadianprofiteer.com)
Because of the dividend, the convertible preferred will usually decline less if the common stock declines, providing a cushion on the downside. (aaii.com)