WILL THERE BE A SEVERE CORRECTION OR EVEN A STOCK MARKET CRASH THIS OCTOBER?

I have replaced the original posting because I failed to factor in subsidies when calculating the profit margins of US non-financial corporations. I have now corrected for this.

October has come and gone. The markets have survived a collapse in GDP growth, a compression between short and long term interest rates, the lack of growth in revenue and earnings between Q2 and Q3 instead concentrating on comparisons with 2020, the compression in margins in three quarter of companies reporting and so on. It appears a much bigger shock is needed.