As long as investors can use the K-chart of futures in the securities market, they can completely copy this technical analysis tool and apply it to the trading operation of futures trading, and can also help investors make profits in the commodity futures market with these technical analysis indicators.

K-line chart originated in Japan, also called candle chart, yin-yang line, etc. K-line chart was first used in Japanese rice market to record the daily rise and fall of rice price.