A chart used in technical analysis that shows support and resistance, and momentum and trend directions for a security or investment. It is designed to provide relevant information at a glance using moving averages to show bullish and bearish crossover points. The "clouds" are formed between spans of the average of the tenkan-sen and kijun-sen plotted six months ahead , and of the midpoint of the 52-week high and low plotted six months ahead.
Taobiz explains Ichimoku Cloud
The ichimoku cloud was developed by Goichi Hosoda, a Japanese journalist, and published in the late 1960s. It provides more data points than the standard candlestick chart.
The overall trend is up when prices are above the cloud, down when prices are below the cloud and flat when they are in the cloud itself. When senkou span A is rising above senkou span B the trend is stronger upward, and is typically colored green. When senkou span B rises above senkou span A, the trend is stronger downward and is denoted with a red-colored cloud.