Taking 10,000 U as an example, first take out 5,000 U and enter the market in three or four batches, the entry points should be selected based on technical indicators, in the form of 334 or 3223. If all the additional positions still do not yield a profit, then add the remaining 5,000 as margin, and enter 33 twice. Generally, this is not necessary unless in a very extreme one-sided market.