Wall Street futures climbed early Wednesday after Micron Technology reported earnings that beat expectations, sparking a rally in AI-related chip stocks. The surge lifted the Dow, S&P 500, and Nasdaq as traders bet on sustained demand for semiconductors. The rally follows weeks of jitters over AI spending and tariff risks.

Strong forecasts from Micron and Qualcomm ignited a $400 billion rally in AI chip stocks, according to Reuters. The move suggests confidence in the sector's growth trajectory, even as broader market uncertainty persists. Investors are now awaiting a key inflation reading later this week.

Micron's earnings provided a bright spot after a volatile period for tech shares. The company's results and outlook helped ease concerns about an AI-driven slowdown. Qualcomm's similarly upbeat guidance added to the positive sentiment.

The rally underscores how AI chip makers remain a linchpin for market momentum. If inflation data surprises to the upside, the gains could be tested. For now, traders are watching for further confirmation that demand for AI infrastructure remains robust.

Analysts cautioned that one strong earnings season does not erase tariff or geopolitical risks. The sector's reliance on a handful of large firms makes it vulnerable to sudden shifts in policy or demand.