After a sharp decline in the market, it fell to a low of 4007, and there were no obvious high or low points during the bottoming process. Whether it was the decline in the early stages of bottoming or the rise in the later stages, both occurred slowly, forming a typical "arc bottom" pattern. After the "arc bottom" pattern is formed, if the trading volume suddenly increases and the market suddenly rises (at the boxed area), it means that the market is starting to rally. Therefore, the "arc bottom" pattern is also one of the important candlestick patterns before a market rally starts.
