Market analysis on May 7th: From the four-hour structure of Bitcoin, this wave of market action has clearly entered the "rise and profit-taking" stage. After breaking through 82,800 to set a new high, the price did not form an effective continuation of the rally, but instead closed with consecutive declines, and selling pressure at high levels quickly intensified. Especially as the key support at 81,000 was directly broken, indicating that the bulls' defense is beginning to weaken, and market funds are gradually cashing out and exiting. The biggest feature of the current market is — the rebound is becoming weaker. Each upward push is diminishing, the highs are continuously moving lower, and the bears are gradually taking control of the short-term rhythm. Technically, the price has quickly fallen from the upper band of the Bollinger Bands and is now approaching the middle band, while the upper band is starting to flatten, indicating that the previous strong upward momentum is waning. At the same time, the Bollinger Bands are gradually narrowing, and the signals for a trend reversal after high-level oscillation are becoming more obvious. If the price cannot regain and stay above 81,000 in the future, the market is likely to continue testing the support at the middle and lower bands, and short-term traders should be cautious of further pullback risks.