for diabetes and h.i.v., saw double digit sales increases helping reduce the sting of the drop in singulair sales. verisign is the company that assigns internet addresses. but it's waiting for the federal government to approve its contract to register .com web addresses. with that deal expiring at the end of november, shareholders are getting nervous. the stock fell hard, down 15.5% with the company warning the government may not finish its contract review before it runs out. four of the five most actively traded exchange traded products were lower. the nasdaq 100 tracking fund was the sole gainer among the group, up 0.3%. and that's tonight's "market focus." >> tom: with worries about corporate earnings and the threat of gas hikes and government spending cut early next year, investors are climbing a cliff of concern. that's the assessment of tonight's market monter. robert stovall is back with us, bob, it's always great to see you. why do you think now, given all these worries out there, now is a good time to buy stocks? >> i think because the worries are pretty well disseminated. we all k