Market stability considerations: short around 2200 with a 5-point range (win rate 55%)); short around 2138 with a win rate of 72%); short around 2273 with a win rate of 77%); short around 2306 with a win rate of 80%(; short around 2333 with a win rate of 88%); Memo: 2357/2388, break it and see); 215 range (win rate 70%)); long around 2127 with a win rate of 75%); long around 2091 with a win rate of 82%); long around 2060 with a win rate of 88%(; Memo: 2033/2000, break it and see); Today's suggestion: Bitcoin resistance above 7.28/74.7k; support below 70.2k/69k/67.5k. In a bull market with big rises and falls, stop-loss at 10-15 points, protect above 10 points, reduce positions or take profit at ≥30 points.