TLT ▼ -0.7% - iShares 20+ Year Treasury Bond ETF $TLT new lows $TLT fell 0.7% today as the 20+ year Treasury bond ETF hit new lows, reflecting broader weakness in the long-duration bond market. Declining bond prices typically signal rising yields, which can occur when investors anticipate higher interest rates or stronger economic growth ahead. 18-SEP-2026 10:29 AM ET