The bulls are guarding the pivot points on these charts as though they mean something.
There are quite a few 'crash predictions' floating around. I think they are a bit early, as the period of greatest danger will be from Labor Day to Thanksgiving Day in the States.
There is a whiff of hysteria in the air, and people attempting to use fear to promote their own ends.
SP 500 September Futures Daily Chart
NDX September Futures Daily Chart