A gravestone is identified by open and close near the bottom of the trading range. The candlestick is the converse of a hammer and signals reversal when it occurs after an up-trend.
The Gravestone Doji is a significant bearish reversal candlestick pattern that mainly occurs at the top of up trends.
The Gravestone Doji is created when the open, low, and close are the same or about the same price (Where the open, low, and close are exactly the same price is quite rare). The most important part of the Graveston Doji is the long upper shadow.
The long upper shadow is generally interpreted by technicians as meaning that the market is testing to find where supply and potential resistance is located.
The construction of the Gravestone Doji pattern occurs when bulls are able to press prices upward.
However, an area of resistance is found at the high of the day and selling pressure is able to push prices back down to the opening price. Therefore, the bullish advance upward was entirely rejected by the bears.
The chart below of Altria (MO) stock illustrates a Gravestone Doji that occured at the top of an uptrend:
In the chart above of Altria (MO) stock, the market began the day testing to find where support would enter the market. Altria eventually found resistance at the high of the day, and subsequently fell back to the opening's price.
The Gravestone Doji is an extremely helpful Candlestick reversal pattern to help traders visually see where resistance and supply is likely located. After an uptrend, the Gravestone Doji can signal to traders that the uptrend could be over and that long positions should probably be exited. But other indicators should be used in conjunction with the Gravestone Doji pattern to determine an actual sell signal. A potential trigger could be a break of the upward trend line support.