1. Trend following:
This strategy involves identifying the direction of the market trend and trading in the direction of that trend. Traders using this strategy will buy when the market is trending upwards and sell when it is trending downwards.

2. Mean reversion:
This strategy involves identifying when a market has deviated from its historical average price and betting that it will eventually return to that average. Traders using this strategy will sell when the price is above the average and buy when it is below.

3. Breakout trading:
This strategy involves identifying key levels of support and resistance in a market and betting that the market will break through one of these levels. Traders using this strategy will buy when the market breaks through resistance and sell when it breaks through support.