A significant Ethereum short position has been opened by the address known as "Silver Iron Head Air Force". The address, identified as 0x61c, initiated a 20x leveraged short on Ethereum, totaling 5,181 ETH, valued at approximately $12 million. The average entry price for this position is $2,314, with a liquidation threshold set at $2,790. This move was detected by Hyperinsight monitoring on April 21.