Two reasons: one is that the exchange Upbit manipulated the coin price. The address 0x9a9c4219bB88918758cCF83928fA79a563031a16 is Upbit's hot wallet. In the past day, internal wallet transactions were looped 103 times, with a total of 115 transactions this week. Such frequent transfers must be transferring from one hand to the other, and some transactions were also transferred to OKBA. OK has simultaneously suspended deposits on the OP chain.