[wtf_is_up]

Zoom out. The Market has had a great year. S&P500 "sliding" 0.5% overnight is literally nothing.

[rjzzleep]

It's a US company. It doesn't really matter for the US. If it was any middle eastern or African country the downgrade would have put their currency into freefall and the country into hyperinflation. There are dozens of recent examples for that.