If you want to know where the AI hardware cycle is heading, watch the Philadelphia Semiconductor Index (SOX) before you watch anything else.
The index rose 2.92% to 11,462 in early Monday trading, with Nvidia (NVDA), AMD (AMD), Micron (MU) and Intel (INTC) all moving higher as investors bought back into chip stocks following last week's bruising 4.5% decline in the Nasdaq Composite.
The SOX has tracked the semiconductor industry since 1993 and covers the full chip value chain, from designers and manufacturers to equipment makers, giving it a breadth that makes it the market's cleanest early-warning system for shifts in technology demand.
When the SOX leads a rally, as it is doing today, the message is usually that the underlying hardware cycle is intact.
Fresh reading
That reading lines up with fresh intelligence from Wedbush analyst Matt Bryson, who spent last week at the Open Compute Summit in California and found the AI data centre supply chain showing no sign of the credit stress that rattled markets.
Memory chip prices are heading higher, hard disk drive supply remains severely constrained, and cloud giants including Meta (META) and Microsoft (MSFT) actually raised their component forecasts in September.
Bryson's favoured names are Silicon Motion (SIMO) and Seagate (STX), though Broadcom (AVGO) drew attention for a different reason: the company is reportedly sold out of laser components until 2029.
The SOX's 52-week range runs from 6,160 to 14,655, meaning even after today's bounce the index sits roughly 22% below its peak, leaving considerable room for recovery if earnings this week from major technology companies deliver the guidance investors are looking for.
