Business / Taxes / Advancer: Stocks that have gained, or increased, in value over a particular period are described as advancers. If more stocks advance than decline — or lose value — over the course of a trading day, the financial press reports that advancers led decliners. When that occurs over a period of time, it's considered an indication that the stock market is healthy.
Business / Taxes / Gainer: Stocks that increase in value over the course of the trading day are described as gainers or advancers. Those that increase the most in relation to their opening price are called percentage gainers, o MORE
Business / Taxes / Decliner: Stocks that have dropped, or fallen, in value over a particular period are described as decliners. If more stocks decline than advance, or go up in value, over the course of a trading day, the financi MORE