The 7-day contract data for BTC shows that the number of long orders has tripled that of short orders. In an extreme scenario, with a price of 64000, there will be a liquidation of 6 billion long orders. In the short term, the price of 67662, which is the main volume support for the upward movement, is the lowest price of the Bullish line and cannot be broken, representing the lowest cost position for institutional market making.