. >>> some say the candidate to watch is murphy randucl antalla, an executive well engaged in growth markets. and it's those growth areas that wall street wants the next ceo to focus . for "nightly business report." i'm josh lipton, santa clara, california. >>> well, jus astoday's market decline is being pegged to lingering trans ns, new research shows that trade is also the reason by the recentf bout volatility. investorsre a paying attention. steve liesmant lookse up and down. >> reporter: new research by cnbc m shows trump's trade policies have cost markets hundreds of billion, creating head-spinning volatility. cnbc found fully a third of they oves. on seven those 12 days, the dow fell an average of 1.7%, and cost cumulatively 700 billion. in five of those instances on news that trade tensions were sing, stocks bounced b so how does it net out? it's a netting in tiff. one big reasonhat stocks arefl . and job growth, along with the s profit-friendly tax cuts. the trade disputes with the eu, and china, while they might be small on an individual basis, fairly quickly offset the stil