BTC's main buying activity this time is worth a closer look~ On Binance's BTC/USDC perpetual market, there were 3 consecutive instances of intensive market buys today: 1st: A rotation, with OI (Open Interest) remaining basically unchanged. 2nd: Closing longs, OI dropped significantly, accompanied by approximately $8.18M in limit sell orders. 3rd: Reopening longs, OI rebounded, while $4.087M in sell orders were absorbed. This indicates that the funds are not simply chasing the price upward but are instead completing rotations, clearing positions, and then re-establishing long positions. However, the latest batch of main buy orders has already turned from profit to loss. In the short term, keep an eye on the $81,000–$80,700 buy zone (support).