Analysis: the Philadelphia Semiconductor Index, which tracks the 30 top US-listed chipmakers, is up ~75% YTD and on track for its biggest annual gain since 1999 Financial Times 2026-05-28 the Philadelphia Semiconductor Related Coverage Semiconductors: supercycle or superbubble? Financial Times · Robert Armstrong The Chip Rally Is at $5.7 Trillion and Counting. How Much Further Can It Go? Wall Street Journal