The yellow and white lines indicate the trend, while the red and green bars represent momentum. To determine if there is still one last wave, besides a rapid decline with increased volume, you can also look at whether the previous low is above the zero line and if there is support at the higher level. This rally is able to break out mainly because of the double bottom's important support level, along with the proximity to the zero axis. Volume breakthroughs without a pullback to confirm the central zone are also common, meaning no third buy signal has appeared, which can easily be mistaken for a false breakout. However, regardless, short positions that rely on volume-driven upward moves away from the central zone are very risky.