JPMorgan Chase's client survey on U.S. Treasury bonds indicates that for the week ending October 20, the short position increased by 2 percentage points while long positions decreased by 2 percentage points, with neutral positions remaining unchanged. The net long position across all clients has reached its lowest level since August 25. 　　Comparing all clients (October 20 vs. October 14): 　　Long: 26 vs. 28; 　　Neutral: 57 vs. 57; 　　Short: 17 vs. 15; 　　Net Long: 9 vs. 13. 　　For active clients: 　　Long: 22 vs. 22; 　　Neutral: 34 vs. 45; 　　Short: 44 vs. 33; 　　Net Long: -22 vs. -11.