Whale
An investor or wallet holding a very large amount of cryptocurrency. The actions of whales (large buys or sells) can noticeably move an asset's price.
How it works
A whale is the holder of a position large enough that a single trade of theirs moves the price. There is no exact threshold: for bitcoin it means thousands of coins, while for a small token a few tens of thousands of dollars is enough.
It is not about wealth but about the ratio of position size to market depth. The same person is a whale in a token turning over a million dollars a day and an invisible participant in bitcoin.
Large wallets are visible on-chain and tracked by dedicated services. Yet only the movement is visible, not the intent: a transfer to an exchange can mean preparation to sell or simply a change of custody.
Why a large trade moves price
The order book has 10 coins for sale at each price level. A whale buys 40 coins with a single market order.
| First 10 coins | at $100 |
| Next 10 | at $102 |
| Next 10 | at $105 |
| Last 10 | at $110 |
| Average price | $104.25 |
The average purchase price came to $104.25 instead of $100, and on everyone else's screen the price jumped 10% instantly. No news was involved — the order size moved the price, not information.
What to watch for
- A transfer to an exchange is not a verdictTracking services report movements, not plans. A significant share of such transfers comes to nothing.
- The smaller the coin, the more distribution mattersIf a handful of wallets hold most of the supply, price depends on a few people's decisions. This is visible in a block explorer before you buy.
- Copying trades makes little senseYou see a trade after it executed and know neither the horizon, nor the size of the rest of the position, nor how it is hedged.