All you should care about are interest rates
I think the picture above is quite ironic.
Stocks being killed by the injection that caused it.
Y'know, I quite like the video below to explain, well, everything to do with markets...
Interest rates up = stocks on aggregate (i.e indices) get hit.
At the end of the day, the market is a weighing mechanism.
'How much heavier is the opportunity cost of holding my ballsy big bags of stocks when interest rates go higher?'
As we've seen with the COVID pandemic, share prices rarely have anything to do with underlying fundamentals.