What is the perfect buying timing measured from the Nikkei Average and FANUC inventory cycles?

It is said that stock prices move slightly ahead of the business cycle. I think everyone can imagine the movement where stock prices have already begun to rise when the economy is at its bottom, and stock prices have already begun to fall when the economy is at its peak.
　If you think about it the other way around, if you can capture the business cycle, you will be able to measure a good timing for trading by going a little further than that. Therefore, this time, I would like to introduce one indicator that I place importance on when looking at the business cycle.
　This is the inventory cycle of FANUC (stock code: 6954), which handles FA (factory automation), robots, robo-machines, etc. I think FANUC's inventory cycle should be kept under control in order to capture the perfect buying timing near the bottom of the Nikkei Stock Average.