A certain wave band giant whale sold 4491.2 ETH six hours ago and partially closed out, losing $21700 again

According to on chain analyst @ ai_9684xtpa monitoring, "On April 28th, borrowing coins to long 15000ETH band whale" sold 4491.2 ETH ($8.068 million) for partial liquidation six hours ago, resulting in another loss of $21700. Yesterday's "buying more and buying more" operation reduced the average opening price of ETH to $1801.24. Currently, two addresses still hold 10510 ETH, with a floating profit of $33400,