All 30 Dow Stocks Suffering Premarket Losses

All 30 components of the Dow Jones Industrial Average traded lower in premarket trade Monday, as investor brace for a second session of volatility in the wake of the U.K.'s vote to exit the European Union. The SPDR Dow Jones Industrial Average ETF shed 1% ahead of the open, on course to open at a three-month low, after tumbling 3.4% on Friday. Among the biggest Dow-member losers, shares of Travelers Companies Inc. shed 1.8%, J.P. Morgan Chase & Co. gave up 1.8%, Caterpillar Inc. lost 1.6%, American Express Co. dropped 1.6% and 3M Co. slid 1.6%. The best performers were shares of Verizon Communications Inc. and International Business Machines Corp. which were both down just 0.4%. On Friday, the Dow plunged 610 points with all 30 components losing ground.