16-Week Cycle in Markets
The ~16-week cycle (≈112 calendar days / ~80 trading days) shows up clearly in many instruments, including SPX.
What’s driving it?
Many cycle analysts look to the solar system for stable periodicities.
Mercury’s synodic period is 115.9 days — strikingly close.
Is there a real link?
And if so, what’s the mechanism — direct, or indirect via subtle modulation of solar plasma/activity?
More questions than answers at this point.