AMD shares tumbled Tuesday despite solid revenue guidance and AI chip optimism, becoming the latest semiconductor casualty in a market where solid execution simply isn’t enough. This earnings season has been brutal for chip stocks: Texas Instruments , ON Semiconductor , Qualcomm , and Arm all posted results that looked good on paper, but were met with steep sell-offs as investors demanded accelerating growth and guidance that clears an ever higher bar. SOXX 1M mountain iShares Semiconductor ETF, 1 month Even Lattice Semiconductor wasn’t spared. Management outlined a confident AI roadmap and said new product sales could could hit the high teens as a percentage of total revenue in 2025 – implying 70% year-over-year growth. But the numbers merely matched expectations and that was reason enough to sell. We’ve reached a point where 70% growth isn’t good enough. The message is clear: guidance matters more than headline beats. Especially in AI, where expectations have soared and valuation premiums demand more than just “good”. AMD, up over 40% this year, faced that reality. After such a run, decent numbers don’t move the needle. Only blowouts do. SOXX YTD mountain iShares Semiconductor ETF, YTD With the PHLX Semiconductor index posting back-to-back weekly losses for the first time since March, chip investors are only rewarding the stocks that can deliver the most dramatic guidance surprises. With chip stocks up nearly 60% as a group off their lows in April during the global trade war scare, it also means maybe share prices for this sector are too far ahead of themselves. The next test will be Nvidia’s earnings on Aug. 27.