Investors who have invested in commodity futures know that the candle K-chart they use is exactly the same as the candle K-chart commonly used in the stock market. Its technical analysis index, moving average and trading volume are also exactly the same. As long as investors can use the candle K-chart in the securities market, they can completely copy this technical analysis tool and use it in the trading operation of stock index futures. These technical analysis indicators can also be used to help investors realize investment returns in commodity futures markets.

K-line, also known as candle line, yin and yang line, bar line or red and black line, originated from the rice market transaction in Tokugawa era in Japan. It has been widely used in the analysis of the securities market and has become one of the most basic methods in scientific and technological analysis. The calculation units of K-line farm tools are generally divided into: daily K-line, weekly K-line, daily K-line and minute K-line, and their formation depends on four data in each calculation unit, namely the opening price. When the opening price is lower than the closing price,

K line is the positive line (black). When the opening price is equal to the closing price, the K line is called a cross star. When the K line is the positive line, the thin line between the highest price and the closing price is called the upper lead, the thin line between the lowest price and the opening price is called the lower lead, and the column between the opening price and the closing price is called the entity.

The daily opening price refers to the first transaction price of each trading day. At present, the opening price of China market is generated through call auction.

The daily closing price refers to the final transaction price of each trading day. The closing price is the standard of the day and the basis of the opening price of the next trading day.

The highest daily price refers to the highest price among the trading prices of the day.

The daily lowest price is only the lowest price in the trading price of the day.

Second, the single-day K-line form, using the single-day K-line form, can initially judge the strength of the market. There are several different common forms of a single K-line.

1, standard positive line: a complete positive K line, with several elements such as upper and lower leads and entities. Its higher closing price and opening price generally represent the rising trend of the day.

2. Barefoot male line: The male K-line has only the upper lead and no lower lead. In barefoot yinxian, the lowest price is equal to the opening price. It generally represents the trend of the market opening lower and going higher that day.

3, bald male line: Yang K line only has the lower lead, no upper lead; In the bald line, the highest price is equal to the closing price. Generally, it represents the trend of the market rising on that day and reaching a climax at the close.

4. Bare head and bare foot Yang line: Yang K line has neither upper lead nor lower lead. Bald and barefoot is a very special K-line. The lowest price equals the closing price, and the highest price equals the opening price. On behalf of the market of the day, it not only opened lower and went higher, but also reached its climax at the end of the day. Bare head and barefoot represent an upward trend without reservation.

5. Inverted T-shaped K-line: Only the upper lead has no lower lead. And the K-line entity shrinks into a short horizontal line, then the opening price, closing price and highest price are all equal. The physical length of the K-line is zero, also known as the "inverted T-shaped K-line", which generally represents the trend of bulls being frustrated that day.

6. Cross star: There is an upper lead and a lower lead, but the K-line entity shrinks into a short horizontal line. At this time, the opening price is equal to the closing price, and the length of the K-line entity is zero, which is called the cross star. The cross star is also a special K-line, indicating that the long and short sides of the market are in a state of balance that day.

7. Standard Yinxian: Yinxian with complete elements such as upper and lower leads and entities. Its opening price and closing price generally represent the downward trend of the day.

8. Barefoot Yinxian: Yinxian has only the upper lead and no lower lead. In the barefoot Yinxian, the lowest price is equal to the closing price, which generally means that the market trend falls on that day and reaches the lowest trend at the end of the market.

9. bald yinxian: yinxian has only the lower lead and no upper lead. In the bald yinxian, the highest price is equal to the opening price, which generally represents the trend of the market opening higher and going lower that day.

10, bareheaded and barefoot Yinxian: Yinxian has neither upper lead nor lower lead. Bald and barefoot Yinxian is a special Yinxian. The lowest price is equal to the closing price and the highest price is equal to the opening price. Generally speaking, it means that the market not only opens higher and goes lower, but also reaches the lowest trend at the end of the day. Bald and barefoot yinxian unreservedly represents an obvious downward trend.

1 1, T-shaped K-line: only the lower lead is not the upper lead. K-line entity shrinks into a short horizontal line. When the opening price, closing price and the highest price are equal, the length of K-line entity is zero, also called T-line. Generally, it represents the trend of short selling frustrated on the day.

12, "one" word line: there is no upper lead and lower lead, and the whole K line is shrunk into a short horizontal line, so the opening price, closing price, highest price and lowest price are all equal. K-line is a very special K-line with zero entity length. Basically, it can only appear under the system of ups and downs.