USD is trading at $93.55, down 4.05%, as broader risk reduction weighs on semiconductor stocks. - The ETF reversed after rising from $78.43 on September 14 to $97.63 on September 22. - Crude oil rebounded, the 10-year Treasury yield neared 4.99%, and major U.S. indexes fell, pressuring rate-sensitive growth stocks. - With September flash PMI data and Fed commentary ahead, elevated valuations encourage chipmaker profit-taking; evidence points to a sector-wide, macro-driven pullback, not one dominant company announcement.