Various Buy Signals for a 15 Minute Chart · Watch for RSI (5) and (2) to cross through 50-70 · Watch for MACD Histogram to move above the 0 line on above average volume · Watch for PPO to cross above 0 line · Watch for PPO (12) to cross over PPO (26) · Watch for ADX +DI to cross over -DI · Watch for cross above 200MA