On-chain data tracking shows that a massive whale account quickly switched positions in a remarkable move — first closing its previous ETH short position, then decisively opening a 3x leveraged ETH long position just over ten minutes later. This operation was substantial, with the total position after adding funds reaching approximately $12.63 million. The account established the position at a price of $3,097.07, and the current mark price has risen to $3,099.9. Such rapid directional shifts often indicate a change in market participants' outlook on the subsequent trend, making it important to watch the subsequent actions of this large holder.