The characteristics of the canopy shape of dark clouds are as follows:
1. Upward trend: Dark clouds usually appear in the upward trend, indicating that the multi-party forces may have weakened and the air forces are gradually increasing.
2. Two K-lines: The shape of the dark cloud roof consists of two K-lines, the first of which is a relatively long positive line, showing various forces; The second is a relatively short negative line, indicating that the air force has begun to dominate.
3. Covering principle: The key feature of the dark cloud covering pattern is that the opening price of the second negative line is higher than the closing price of the first positive line, and the closing price is lower than the opening price of the first positive line. This shows that although the second negative line is short, its coverage completely exceeds that of the first positive line, forming the form of "dark clouds covering the top".
4. Reversal signal: Dark clouds indicate that market sentiment and trends may reverse, from multi-party dominance to empty dominance. However, it should be noted that a single form of dark clouds may not be enough to determine the trend reversal, and it needs to be comprehensively judged by combining other technical analysis tools and fundamental information.
In futures trading, the shape of dark clouds can be used as a potential appearance signal to remind investors to pay attention to the changes in market trends and consider adjusting trading strategies. However, in practice, investors should be cautious and should not make trading decisions only based on a single technical form.