Shares of all 30 Dow Jones Industrial Average DJIA, +1.79% components were losing ground in premarket trade Wednesday, as geopolitical tensions and possible turmoil in Trump administration helped trigger a pullback after the Dow's 429-point surge in the previous session. Dow futures YMM8, -0.86% shed 259 points. Among the biggest Dow decliners, shares of Goldman Sachs Group Inc. GS, +1.74% and Travelers Companies Inc. TRV, +0.46% lost 1.7%, Caterpillar Inc. CAT, +3.50% shed 1.5% and Visa Inc. V, +1.62% dropped 1.3% and J.P. Morgan Chase & Co. JPM, +1.91% dropped 1.3%. The most active stock was Apple Inc.'s AAPL, +1.88% which lost 0.8%.