Im Morgan Brennan with melissa lee and mike santoli live here at post 9 at the New York Stock Exchange carl and jon are both off this morning. Weve got a big show ahead with shares of uber tanking more from our exclusive interview with Ceo Dara Khosrowshahi in just a few minutes. And later, dropbox dropping in a big way with those shares down 13 . Ceo drewhouse will join us in another exclusive at the bottom of the hour. But first, well begin with whats really been a wild week for the markets with the dow down triple digits again down right now about 165 points. What should investors make of the big swings in stocks that we have seen for this week . Bob pisani has those answers from the floor here for us bob . And the answer is that it depends on what the president is doing on tariffs and what the Federal Reserve is doing the president just making comments moments ago, not ready to make a deal on china yet, and thats frankly whats been moving the markets for the last week or so you see