The U.S. producer price index (PPI) in July increased more than expected, the Federal Reserve interest rate concerns, the U.S. Treasury interest rate rose, dragged down technology stocks, semiconductor stocks were all over the ground, Nvidia fell more than 3.6 percent. Chevron (CVX)$and Merk led the way, only the Dow narrowly closed higher. The VanEck Semiconductor ETF $Semiconductor Index ETF-HOLDRs(SMH)$fell 5.2% for the week, its worst week since October 2022.In terms of data, the U.S. Labor Department released data showing that the producer price index (PPI) increased by 0.8% in July, higher than the market expectation of 0.7% and revised 0.2%; Excluding volatile food and energy, core PPI rose 2.4 percent in July from a year earlier, above mark