That's funny. A friend of mine showed me a chart a few days ago pointing out this cycle, around the 5th/6th of each month:
https://s3.amazonaws.com/tradingview/snapshots/w/wTqITBgp.pngI wouldn't put much emphasis on it. After major trends, price tends to reverberate much like a sine wave. Basically, they're just one more indication to follow the trend, once it's apparent. These time cycles develop much like Fibonacci retracements. The pattern will
probably continue.......until it doesn't, at which point you need to switch gears and follow the trend.