Sept 10 (Reuters) - Bond investors grew more bearish on U.S. longer-dated government debt to a level not seen in over five months as optimism about U.S.-China trade tensions and stimulus to bolster the global economy reduced bond demand, a J.P. Morgan survey released on Tuesday showed.
Benchmark 10-year Treasury yields rose to a one-month high at 1.675% on Tuesday, rising from a three-year low of 1.429% reached last week.
In late August, the yields on U.S. 30-year Treasury bonds hit a record low of 1.905%, according to Refinitiv data.
The share of investors who said on Monday they were "short," or holding fewer longer-dated Treasuries than their portfolio benchmarks, exceeded the share who said they were "long," or holding more longer-term government debt issues than their benchmarks, by 4 percentage points.
This was the highest level since April 1, according to J.P. Morgan.
A week ago, investors were net short by 2 percentage points.
(Reporting by Richard Leong; editing by Jonathan Oatis)