Traders judge the instantaneous price fluctuation according to the "sense of disk" on the spot, and only observe the pending orders of buying one and selling one, as well as the changes of instantaneous price and volume. Different from traditional short-term traders, the hat snatcher does not need to observe any technical indicators such as daily K-line, minute K-line or time-sharing line, and even does not need to open the market software, but only needs to complete the transaction through trading software. Generally speaking, futures trading can be called a hat snatcher only if it trades 100 round trips within 4 trading hours (that is, the total opening and closing positions is ***200), so it becomes a high-frequency trading.

Hat snatchers pay great attention to stop loss and take profit. Generally, they stop at 2-3 price points and stop at 0-2 price points. Due to the implementation of high-frequency trading, as long as the accuracy of judging the market reaches 50%, the hat snatcher can achieve profit. It can be said that the skills of stop loss and take profit determine the final profit level.

Taking soybean futures as an example, this paper explains the two round-trip transactions of the hat snatcher (one taking profit and one stopping loss)

Take profit round trip: buy one price: 4500 pending orders, 50 lots, sell one price: 450 1 pending orders, 200 lots. At this time, the trader judged that the price was rising, and the pending order was 4500 1 lot, and the transaction was successfully completed. After 20 seconds, all the 450 1 200 lots sold were eaten, and the price of a sale became 4502. Traders take profits, and the pending order 4502 is sold and closed 1 lot. After 20 seconds, the transaction is completed, with a profit of 2 prices and an amount of 20 yuan.

Stop loss round trip: Same as above: buy one price: 4500 pending orders, 50 lots, sell one price: 450 1 pending orders, 200 lots. At this time, the trader judged that the price was rising, and the pending order was 4500 1 lot, and the transaction was successful. However, it backfired. After 20 seconds, all 50 hands of Buy One were eaten, and the price of Buy One became 4499. The trader stops the loss, sells at the market price of 4499 1 lot, and trades immediately. Loss 1 price, amount 10 yuan.

After the above two round trips, the success rate of hat-snatching traders is 50%, and the total profit is 10 yuan.

Because the above case does not consider the handling fee factor, in the actual operation process, low handling fee is also an important factor in order to obtain ideal income.