Cryptocurrency "whales" refer to addresses or institutions that hold large amounts of mainstream tokens (such as BTC and ETH). Their buying, selling, and transfer movements often attract market attention. Large transactions can be tracked through Whale Alert and on-chain platforms: withdrawing to cold wallets may indicate long-term hoarding, while transferring to exchanges may signal selling pressure. Recently, some BTC whales have locked up positions waiting for a rise, and ETH whales have increased their stakes, making these movements an important reference for investors' sentiment and short-term fluctuation predictions.