CoinMeta data: According to large transaction monitoring, just now BTC experienced a sharp short-term drop of over 1%. There were dense market sell orders for HyperLiquid BTC / USDC perpetual contracts, with the main players accumulating transactions totaling 84.04 million US dollars. Considering that the position difference is negative, it can be inferred that the main players were selling to close their long positions, with an average closing price of 80,996 US dollars. Currently, BTC is attempting to regain the 81,000 US dollar level, while the main players have started placing large sell orders above 81,600 US dollars, amounting to over 8 million US dollars. At the same time, there are large buy orders worth over 23 million US dollars defending the 80,000 US dollar level. In the short term, we need to pay close attention to the 81,000 US dollar level: if it can be held steady, the price may rise to test whether the main sellers' pressure has been broken; otherwise, it may fall to test the support from the buy orders.