Doji is a popular candlestick formation in forex trading. It is formed when the opening and closing prices of a currency pair are the same or nearly the same. The Doji pattern shows that the market is undecided and can be seen as a sign of indecision or a sign that the market is reaching a point of equilibrium. Doji formations can also be used to identify potential support and resistance levels and can be useful in confirming other technical analysis signals. Trading with Doji formations is a popular strategy amongst forex traders, as they can identify potential entry and exit points, as well as provide insight into market sentiment.