disappearance of american robyn gardner where questions surround the man who was last seen with her. we will speak with a close friend of the woman coming up. early thursday, august 11th, 2011. captioning funded by cbs a lot of volatility in the market? yes but pointing higher. wild roller coaster ride on wall street. stocks opened higher a day after taking another major dive. cbs news national correspondent jeff glor on the floor of the new york stock exchange with the latest on this whiplash down there on wall street. hey, jeff. chris, good morning to you. reporter: you talk about the whiplash. the dow has been down more than 400 points, three out of the last five trading sessions here. but as you mentioned, today, things did open up as we swing back and forth here and we prepare here on wall street for all of the markets for what could be another very interesting day. wednesday s bell brought the close of another trading day but it new fears over europe. seve