A candlestick is a visual indicator of an asset's recent price activity in the shape of a vertical bar. Candlesticks illustrate an asset's price value from the beginning to the end of a specified window of time (1 min to 1 month). If the candle is red than the top is the initial price, and the bottom is the ending price indicating a loss during that time frame. A green candle means the opposite in which there was an increase in value. A wick is a line that extends from the bottom and top of the candles representing the low-high range of a trading pair within the predetermined time frame.