Dark Cloud Cover
In candlestick charting, a pattern where a black candlestick follows a long white candlestick. It can be an indication of a future bearish trend.
Investopedia Commentary
Essentially, the large black candle is forming a "dark cloud" over the preceding bullish trend.
The dark cloud must have a closing price that is:
1) within the price range of the previous day, but
2) below the mid-point between open and closing prices of the previous day.
Related Links
Introduction To Technical Analysis
See also: Bear, Candlestick, Technical Analysis