More investors raised their positions in longer-dated Treasury holdings in the latest week in advance of the Federal Reserve's policy meeting, Reuters reports.

A total of 19% of its Treasurys clients said on Monday they were "long" in their duration on U.S. government debt, or owning more longer-dated Treasuries than their benchmarks, up from 11% a week earlier, the latest J.P. Morgan Securities (JPM) survey showed.