Key Highlights

  • The 10-year Treasury yield closed near 5.31 percent on October 5, 2026, up from 5.17 percent on September 25, while iShares 20+ Year Treasury Bond ETF (NASDAQ:TLT) fell about 0.48 percent to USD 77.11.
  • The fund held USD 47.36 billion of net assets across 47 Treasury securities, with an effective duration of 14.68 years and an average yield to maturity of 5.69 percent as of October 2, 2026.
  • Simple arithmetic on the published duration implies a price move near 14.7 percent for each 1 percentage point change in long yields, which is why iShares 20+ Year Treasury Bond ETF (NASDAQ:TLT) reacts so sharply.
  • A September payrolls gain of only 29,000 against about 84,000 expected, plus a services prices index of 74.0, leave the Federal Reserve minutes on October 7 at 2:00 p.m. ET as the next test for long bonds.

Yields Climb While the Fund Slips

Treasury data show the 10-year yield at 5.31 percent on October 5, 2026, against 5.28 percent on October 2 and 5.17 percent on September 25. The 20-year yield was 5.70 percent and the 30-year yield 5.66 percent. Published market data put iShares 20+ Year Treasury Bond ETF (NASDAQ:TLT) at USD 77.11, down about 0.48 percent, even as the Nasdaq Composite closed at a record 27,477.31 and the S&P 500 gained 0.66 percent. Published accounts disagree on whether the 10-year yield is the highest since 2002 or 2007, so this article says only that yields sit near two-decade highs. The fund tracks the ICE US Treasury 20+ Year Bond Index and charges an expense ratio of 0.15 percent.

Duration Turns Yield Moves Into Price Moves

A bond fund's price moves opposite to yields, and the size of the move depends on duration. The issuer reports an effective duration of 14.68 years and a weighted average maturity of 26.09 years for iShares 20+ Year Treasury Bond ETF (NASDAQ:TLT). Holding only Treasuries removes credit risk but leaves interest rate risk fully intact. The 5.69 percent average yield to maturity is the income buyers lock in, though it does not protect the share price. Drivers this week include a weak jobs report, a services prices index of 74.0, and French fiscal worries that pushed the euro to a 17-month low and lifted global long-bond yields.

Risks, Peers and Dates to Watch

The risk runs both ways: if yields rise another 50 basis points, simple duration arithmetic points to a further decline near 7 percent, and if yields retreat the price recovers by a similar logic. The 2-year to 10-year gap is about 47 to 49 basis points, so the curve is positively sloped. SPDR S&P 500 ETF Trust (NYSEARCA:SPY) trades near 774.83 in published data, showing equities have so far ignored the bond selloff. Watch the FOMC minutes on October 7 at 2:00 p.m. ET, jobless claims on October 8, University of Michigan sentiment on October 9, and large bank earnings on October 13. Hot data could push long yields higher still.

Where Things Stand

A 5.31 percent 10-year yield means iShares 20+ Year Treasury Bond ETF (NASDAQ:TLT) offers a higher starting income, 5.69 percent average yield to maturity, but carries heavy price sensitivity, with an effective duration of 14.68 years. The fund fell 0.48 percent to USD 77.11 on October 5 while stocks hit records. The next catalysts are the October 7 minutes and inflation-linked data. This is analysis, not a recommendation.