Individuals / firms when trading equity (stock) on the stock markets as their principal capacity are called stock trading. Stock traders usually try to profit from short-term price volatility with trades lasting anywhere from several seconds to several weeks. The stock trader is usually a professional. A person can call themself a full or part-time stock trader/investor while maintaining other professions. In this case, the financial manager could be an independent professional or a large bank corporation employee. This may include managers dealing with investment funds, hedge funds, mutual funds, and pension funds, or other professionals in equity investment, fund management, and wealth management. Several different types of stock trading exist including day trading, swing trading, market making, scalping (trading), momentum trading, trading the news, and arbitrage.
Stock traders in the trading floor of the New York Stock Exchange.

On the other hand, stock investors purchase stocks with the intention of holding for an extended period of time,  Many investors believe in the buy and hold strategy, which as the name suggests, implies that investors will hold stocks for the very long term, generally measured in years. This strategy was made popular in the equity bull market of the 1980s and 90s where buy-and-hold investors rode out short-term market declines and continued to hold as the market returned to its previous highs and beyond. However, during the 2001-2003 equity bear market, the buy-and-hold strategy lost some followers as broader market indexes like the NASDAQ saw their values decline by over 60%.