Tuesday figures showing the Institute for Supply Management’s U.S. manufacturing index fell to its lowest level in more than a decade in September were the latest downbeat gauge of factory activity. Fears that the weakness could spread to other sectors pushed down stocks and sent investors to the safety of bonds and gold, pushing the yield on the benchmark 10-year U.S. Treasury note down to 1.651% from 1.723% earlier in the day. Yields fall as prices rise. Oil edged lower Tuesday, extending declines after tumbling to start the week on oversupply worries. Brent crude, the global gauge of prices, surged 15% in its biggest one-day gain ever following Sept. 14 attacks on Saudi Arabian oil facilities. But it has since dropped back below $60 a barrel—well below the levels analysts say are needed for the kingdom and other large producers to support their economies. U.S. crude has slid to […]