jim zenni, you are staying with us.pening bell and futures are down. crude is off to its worst start ever in the year. we are following it all here on bloomberg go. ♪ david: welcome back everybody. you're watching bloomberg go. we are in the midst of yet another selloff. points ass down 331 we speak. s&p 500 futures down 38.25. the markets opened seconds from now. if we finish down more than 300 points, we will have seen more than 800 points wiped off in the space of four days. there's the bell ringing on the floor of the new york stock exchange and at the nasdaq. some people have cause for celebration. most don't. let's see where the markets did open. in dollar terms, the declines we have seen just far -- thus far amount to $2 trillion wiped off the global market cap so far. all these concerns about global growth are coming to a head. it is just seconds we have seen u.s. markets trading thus far. we have already seen sharp declines in line with what we saw indicated by the futures this morning. if you take a look at th