V,
it has to do with wave and momentum theory and the timing is given by the Fourier number, which represents dimensionless time and which will be 1 on May 17.
In simplified terms, the SP was slowly falling for months before suddenly accelerating downward, leading to overselling, causing the opportunists to eventually enter the plate. That recoil after my estimates, theory and gut feelings will happen on May 17.
Caution, this theory is unproven and evolved during dreams of a boat load of linje aquevite arriving on my shore. So invest on your own risks.