From a daily chart perspective, after a continuous rally, a relatively strong downward K-line appeared. Although the retracement is significant, a single bearish candle is not enough to confirm a trend reversal, so the recent correction is just a short-term adjustment and does not indicate an overall upward trend reversal. Turning to the 4-hour chart, the price stabilized after touching the lower Bollinger Band, indicating that the support below is relatively solid, and the further downside space is already limited. Therefore, it is not recommended to recklessly short at low levels; instead, be cautious of a potential sudden rebound. Regarding the specific trend of BTC: the range between 91,000 and 90,500 can be seen as support. If it drops to 90,000, a rebound is needed. The target above is set between 92,000 and 93,000.

Looking at the weekly chart of BTC, this wave of market movement is still oscillating within a range, and it hasn't broken through as decisively as expected. At this pace, both high shorting and low longing will present opportunities, and there’s even a chance to explore the 84,000 level. Let's first discuss the key support levels, from top to bottom: 90,400, 90,000, 89,300, and then 88,100. These levels are critical points to watch closely. If you want to go long, you can gradually build positions between 90,400 and 90,000, setting a stop-loss at 89,000, and aiming for take-profit targets around 91,200 to 92,000. Starting from 92,000, switch to short positions. You can try a small position at 92,300 with a tight stop-loss at 92,300; if it hits, revert to a long position with a take-profit at 90,400. If the price continues upward to the 93,060–93,700 range, continue shorting, with a stop-loss at 93,900. Another important operational logic: once the price falls below 89,300, any rebound can be shorted directly. Short positions can be held until 88,100 to see if support holds. If 88,100 cannot be defended, the market may revert to the bottom range of 85,000 to 84,400.