A point on a candle stick chart representing a specific time period (a day, an hour, a minute, etc) in which the underlying stock price has moved. Candlesticks will have a body and usually two wicks – one on each end.

You do not need anything else on a stock chart but the candles themselves to be a successful swing trader! And, there is nothing that can improve your trading more than learning the art of reading candlestick charts.