This strategy uses the EMAs 10, 20 and 200. When the EMA 10 is above EMA 100 and crossunder EMA 20, the strategy will buy the stock. When the EMA 10 is under EMA 100 and crossover EMA 20, the strategy will sell the stock.
If during a buy/sell transaction the EMA 10 crosses EMA 100, the transaction will be closed.