At midnight on the 27th (Singapore time), Coinbase entered a maintenance shutdown and ended at 1am. But on Coinbase, there is a pin up to 66388, while other platforms have not synchronized. The BTC price may return to the pin position again (valid within 24 hours). At the same time, Coinbase's BTC negative premium is expanding, indicating that the main players are increasing their selling. The data is for reference only. For more analysis methods, please join the PRO CLUB for discussion