Cryptocurrency whales, or individuals or entities with large amounts of cryptocurrency holdings, have significant influence on the cryptocurrency market. Here are some common trading strategies used by cryptocurrency whales:

1. Market manipulation: Whales can manipulate the market by buying or selling large amounts of cryptocurrency at strategic times to influence the price.

2. Pump and dump schemes: This is when a group of whales work together to artificially inflate the price of a cryptocurrency by buying a large amount of it, and then selling it all at once to create a rapid price drop.

3. Scalping: This strategy involves buying and selling cryptocurrency rapidly to take advantage of small price movements, generating small profits with each trade.

4. HODLing: This refers to holding onto cryptocurrency for a long period of time, despite market fluctuations, in the hopes of long-term gains.

5. Arbitrage: This strategy involves buying cryptocurrency on one exchange where the price is lower and selling it on another exchange where the price is higher, taking advantage of the price difference.

It is important for individual investors to be aware of these strategies and the potential impact on the market. It is recommended to seek professional financial advice before investing in cryptocurrency.