At times like these, I wish I'd have kept a futures account open. (I have equities & options accounts but no futures). ES will certainly be down over 500 before the open.
It is now time to fold the flag over the Shanghai. The Shanghai market will now be the Nasdaq-100 of 2000 where it will fall mercilessly. Other markets will be sure to follow and, if they dont, there will be considerable chop in the months to come.