Wall Street extended a technology-led retreat and U.S. stock futures were little changed after a global bond selloff pushed long-term Treasury yields to multi-decade highs, while rising oil prices increased concerns that expected interest-rate cuts could be delayed. The Nasdaq Composite fell 1.33%, the S&P 500 dropped 0.69% and the Dow Jones Industrial Average lost 0.22% in a third straight losing session; the Philadelphia Semiconductor Index declined about 5%. Dow, S&P 500 and Nasdaq-100 futures later slipped 0.07%, 0.06% and 0.14%, respectively. Taiwan's weighted index briefly fell nearly 1,000 points to 44,308.71 before trimming losses. Investors rotated toward defensive, value and cyclical sectors while watching Federal Reserve minutes, Nvidia's results, energy prices and the Jackson Hole symposium for policy and earnings signals.