The first and most fundamental form of technical analysis is the candlestick, which is being used by the Japanese since the 17th century. It is still being used extensively among users, as it is a visually attractive way to monitor prices. The candle body is formed by the difference between opening and closing prices and the shadows on the ends of the candle show the high and the low over this period. If the candle is red or black, this means the closing price was below the opening and a white, green or blue candle shows the price closed higher than the opening.
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