the question is what will china do to strike back. so they chose to devalue its currency. so if you're not a student of the market, i'll explain what that means. it means that china boosts their own experts by weakening its currency and the dollar strengthens and the value of u.s. exports is more expensive. so you can see how china is trying to offset the tariffs for itself and make the playing field a little bit harder for u.s. companies and that's why this sell-off is happening today. that's what traders are worried about. they're worried this trade war that has gone on for months now is going to have an impact on the revenues and profits of u.s. corporations. every sector is exposed here. the biggest selling in the tech sector, retail. also in the industrials as well. traders are saying august can be a slow month, but to expect this volatility to continue, shep.