deference US10 YEAR YIELD AND US2 YEAR YIELD

Here I try compare period of market declination with deference of US10 years treasury yield and US 2 years treasury .
As we can see, all last crisis and market declination, whenever deference between us 10 yield and 2 year yield was bearish and make valley, for 2 years or 26 months stock market have bearish trend.
I think we should ready for bearish and NOT correction on stock market.
isn't it?