Long-dated U.S. Treasury yields continued rising, with the 30-year yield climbing 5 basis points intraday to 5.60% on September 29, within a 5.58% to 5.60% range and near its highest level since 2002. The benchmark 10-year Treasury yield had settled at 5.241%, up from 5.18% on Friday and at a 19-year high. Options trading in fixed-income exchange-traded funds surged as investors sought to hedge against, or position for, further increases in yields. BlackRock Inc.'s iShares 20+ Year Treasury Bond ETF, known as TLT, recorded its highest 20-day average options volume, while open interest more than doubled over the past year and approached 13.55 million contracts. Higher yields and larger bond-market swings also pushed TLT implied volatility and bearish put premiums to their highest levels since late March, with options activity expanding into investment-grade and high-yield bond ETFs.