Bets on Long-Bond ETF Spiked a Day Before US Announced Buyback

Investors made significant bets on a long-bond ETF one day before the US Treasury Department announced an unexpected increase in long-dated debt buybacks, which subsequently triggered a rally in the bond market. This timing raises questions about whether the trades were based on advance knowledge of the Treasury's buyback plans. The ETF's sensitivity to long-term bond yield fluctuations made it a strategic instrument for positioning ahead of the announcement.