One or more investors piled into an exchange-traded fund that’s highly sensitive to swings in long-term US bond yields on Tuesday, a day before the Treasury Department unexpectedly ramped up buybacks of long-dated debt and sparked a rally.
Source: [Bloomberg Markets](https://www.bloomberg.com/news/articles/2026-08-19/bets-on-long-bond-etf-spiked-a-day-before-us-announced-buyback)