A Gravestone Doji is a bearish candlestick pattern with a long upper shadow and a very short or invisible body. The open, low, and close prices should ideally be close to each other. It typically appears at the peak of an uptrend and foreshadows a trend reversal. The longer the upper shadow, the more bearish is to be expected.

The Gravestone Doji usually appears where a resistance level is forming, and it can be used as a future reference whenever the price returns to test the same level.

A Gravestone Doji is a bearish reversal candlestick pattern commonly used in technical analysis. Here are the key points:

- Definition: A Gravestone Doji forms when the open, low, and closing prices are all near each other, accompanied by a **long upper shadow**. The pattern resembles an inverted "T."
- Bearish Signal: It suggests a potential reversal followed by a downtrend in price action.
- Market Interpretation: The long upper shadow indicates that the bullish advance at the session's start was overcome by bears by the session's end.
- Common Occurrence: While it can appear at the end of a downtrend, it's more typical at the end of an uptrend.
- Confirmation: Traders often wait for the next candle to confirm the reversal before acting on a Gravestone Doji.

Remember to use this pattern in conjunction with other technical analysis tools for more reliable signals!