One idea that I'm experimenting with that could help is fitting cycles with left or right translation. For example, here is a 4-month chart (123 calendar days with interpolation on days the market was closed) of iShares iBoxx $ High Yield Corporate Bond ETF (HYG) with a parabola as a trend line added to cosine wave to fit the low prices of the bar: And here is the same chart with a cosine wave with the same cosine wave but also left-translated to fit the prices a little better: The waves isolated from the trend were:
This is great!!!! I would not have seen the 2nd wave you isolated. Actually, the way I tend to see waves is in view of how I would trade them. I marked the chart showing how I would view what would be helpful when trading, within the context of bigger cycle, and without seeing what came before.