A whale is a holder whose cryptocurrency position is large enough to attract attention and potentially influence trading conditions. The holder may be an individual, fund, company, or another entity. There is no universal threshold across assets; a balance considered large for one token may be unremarkable in another market.
Why large holdings matter
A large order can consume several price levels in a thin order book, causing substantial price impact. The effect depends on available liquidity and execution method, not just the holder's total balance. Some large transactions occur through negotiated trades instead of a single public market order.
Where governance voting is weighted by tokens, concentrated holdings can also concentrate voting influence, subject to the protocol's rules.
Reading whale alerts carefully
A large blockchain transfer does not prove a purchase or sale. It may move funds between the same owner's wallets or represent custody operations. One exchange address can hold assets for many customers, while one person can control several addresses. Address labels and ownership estimates therefore require context. Tracking whales can reveal activity, but neither large wealth nor a transfer alert guarantees informed decisions or predicts the next price move.