The Rahul Mohindar Oscillator (RMO) is a popular and free forex indicator for the MT4 platform. The RMO is based on the principles of the Moving Average Convergence/Divergence (MACD) indicator, but with a few modifications. It uses two different exponential moving averages (EMAs) to measure the momentum of the market. The RMO is an effective and reliable indicator for traders to identify market trends and momentum.