If the 4-hour middle rail support of 90,000 is maintained at midnight, then this wave of 4-hour level callback will end, and the long position tomorrow can be more aggressive.

If it cannot hold here, then it will have to test the three support levels of 89,500, 88,500 and 87,500. The upper pressure is 92,000, 92,500 and the previous high of 93,400. These positions have been tested recently and have been blocked from going down, so the risk of further retracement cannot be ruled out.

If you want to go low, you should consider ambushing at 89,500, 88,500 and 87,500, with the target of 92,000, 93,500 and 94,000. If it breaks, continue to look up, and the defense is 86,000;

If you want to go high, then you have to try light positions at 92,000, 93,500 and 94,000, with the target of 89,500, 88,500 and 87,500, and the defense is 94,500.