Oil prices surged and Asian shares were lower Friday after Israel struck Iranian nuclear and military targets in an attack that raised the risk of all-out war between them. U.S. benchmark crude oil rose by $3.

Markets rebounded after Trump said his administration intends to send letters to US trade partners to formally establish new tariff terms.

The Dow Jones Industrial Average (DJINDICES: ^DJI) index edged 3.9% higher in May, with 70% of its 30 constituent stocks ending the month in positive territory. However, the two worst-performing Dow stocks in May -- both from the healthcare sector -- kept the index's rally in check, with one of them plunging over 25%.

The blue-chip Dow Jones Industrial Average was headed for its worst daily drop in almost a month on Friday as the Israel-Iran conflict rattles investors, after easing back from session lows. The Dow was down about 774 points,

It's a very competitive industry, but Verizon's large annual revenue and free cash flow provide plenty of resources to invest in technology and features to protect its competitive position. On that note,

Stock futures fell sharply early Thursday, pointing to a rocky open as Wall Street grapples with a tragic plane crash involving Dow component Boeing (BA) and digests a blockbuster earnings report from software giant Oracle (ORCL).

Stocks have been trading sideways all day, but the Dow, especially, has been stuck in a narrow range. The blue-chip index was recently up 17 points, moving in and out of positive territory. It has traded as low as 42,

Shares of Sherwin-Williams Co. and Visa are trading lower Friday afternoon, propelling the Dow Jones Industrial Average selloff. The Dow was most recently trading 822 points, or 1.9%, lower, as shares of Sherwin-Williams Co.