A stress test for semiconductor leadership

Key points:

• SMH slipped into a double-digit drawdown from its peak while semiconductor Relative Trend Scores held near maximum readings
• A perfect relative trend score has not been a clean short-term buy signal, with coin-flip one-month returns and larger average losses than gains
• Similar drawdown setups leaned constructive over intermediate windows, but the maximum-loss tables show investors often had to tolerate uncomfortable volatility before the signal resolved, and the AI-bubble backdrop argues for patience rather than confidence

The AI vehicle is breaking

"Semiconductors are the market's AI vehicle." That has been the working assumption for two years, and for most of it the trade worked. The last few weeks have been less kind. Semiconductor weakness has stretched into more than a one-day event, and the latest break keeps the pressure on the trade that has been doing the heavy lifting.

Lately, semis have looked less like a cyclical industry and more like the market's AI valuation vehicle, and when leadership gets that concentrated, a correction can be about positioning and valuation as much as earnings. The late-June tech selloff stirred open talk of a bubble, and a week later Asian tech shares tumbled even after Samsung printed a strong forecast. That has the feel of positioning unwind, not just demand softening.