jo what is driving the nervous sentiment? >> it's being led by wall street. there's no doubt about that, bian bianca. we've seen the washout on wall street on the last two months of trading. how much do we need to see further selling before we correct after years of gains. we were down better than 600 points. with the loss of 550 points, it's messy. the s&p 500, the broader index of the technology companies is down 10% from the september highs. let's bring up the asian tokyo and south korea are down slightly. that was the wider trend, down slightly throughout asia. not bad considering what we saw. you talked about the technology sell-off. this is a predominant theme.