When the price of crude oil has not broken through the bottom or top of the previous period, crude oil investors must not draw the conclusion that the general trend or the small trend has changed prematurely. When the market is bullish, the price of crude oil futures will rebound quickly, and the decline will not be great, forming a double bottom or multiple bottoms above the bottom.

But once the price of crude oil falls below the original bottom, it means that the price of crude oil will fall to a lower point before some important rebound occurs.

When there are double tops or multiple tops again, but the price has not risen above the original top, even a bull market should not enter prematurely. Once the price rises above the original top, before it falls back, the price will often show obvious signs of rising, and it will be better if it enters the long state.

In the narrow trading range of crude oil, if the futures price of crude oil lasts for several weeks or months and the crude oil price breaks through the original bottom or top, it means that the general trend has changed to a great extent. Moreover, the longer the crude oil price stays in this narrow range, the greater the change after breaking through this range.