September brought an economic event that was widely expected: a quarter-point cut in short-term interest rates by the Federal Reserve. It also brought an attack on two of the world’s largest oil fields that threatened to dent global crude output. A resumption of U.S.-China trade talks was scheduled for October, and White House officials decided to delay some planned tariff increases. Clear signals of an economic slowdown emerged from both the eurozone and China; some of the key U.S. economic indicators looked much better by comparison. While all these events transpired, the S&P 500 gained 1.72% for the month.