Semiconductor stocks surged 24% in early 2026 before a brutal sell-off erased over $1 trillion in value. Here's what triggered the reversal and what it

The Philadelphia Semiconductor Index surged roughly 74% in Q2 2026, its best quarter ever, driven by AI demand. But stretched valuations raise

The SOX semiconductor index is up 94% in 2026, tracking its best year since 1999. Analysts say it's too early to call a top despite a sharp June pullback.