This script will enter a long position when the short-term moving average (9 periods) crosses above the long-term moving average (21 periods), and it will close the position when the short-term moving average crosses below the long-term moving average. Remember to adjust the periods of the moving averages and other parameters according to your specific trading...
The strategy involves entering a long position when a shorter period moving average crosses above a longer period moving average, and exiting the position when the shorter period moving average crosses below the longer period moving average. This is a classic trend-following strategy, and is often referred to as a "Moving Average Crossover Strategy".
Moving Average Crossover strategy using Pine Script version 4. This script does not include position sizing based on account equity. Instead, it uses the default position size of the trading platform.