The Dow Jones Industrial Average sold off on renewed worries of a trade war as the U.S. and China continue to spar. •....discuss how Fastenal (FAST) bucked the trend to end higher. A Real Dark Night of the Soul It may be darkest before the dawn, but with the world inching closer and closer to an all-out trade war between the world's two biggest economies, it's starting to feel more like "a real dark night of the soul [where] it is always three o'clock in the morning," as F. Scott Fitzgerald wrote in one of his more pessimistic essays.