A "long-legged" doji is a far more dramatic candle than the common doji. It says that prices moved far higher on the day or week of the candle, but then profit taking kicked in. Typically, a very large upper shadow is left. At the same time, the bulls saw lower prices as a buying opportunity and thus the long lower shadow. Traders should observe the candle's close in relation to the midpoint. A close below the midpoint of the candle shows weakness. Here's an example of a long-legged doji: