but valvoline is up almost 9%. they just reported earnings and announced the retirement of their ceo. he'll join us just ahead >>> also, the big business behind cleaning up the environment. when governments need someone to step in after a major derailment or chemical issue, montros answers the call we'll speak with that company's ceo. and the dow is down 72, but not quite green like it was. nasdaq down three quarters of a percent. ten-year note back below 4%. "the exchange" is back after this >>> welcome back to "the exchange." environmental disasters seem to be constantly in the headlines, with chemicals in the water supply or toxic lead cables in the ground and fixing these problems have become a big business for companies like montrose. they had a hand cleaning up the train derailment in ohio, and shares are jumping 10% today after reporting better than expected second quarter earnings joining me now is ceo b.j. great to have you here welcome. >> great to see you, kelly >> so, you know, not to give a history les