The Quarters Theory Indicator is a free and popular MT4 Forex indicator that is useful for traders of all experience levels. This indicator is based on the Quarters Theory, which is a trading system developed by Jack F. Cahn. The indicator also provides traders with a range of signals to help them make informed trading decisions. The Quarters Theory Indicator is easy to install and use on MT4 and is a great tool for traders looking to take advantage of the Quarters Theory.