AMD Shares Pop After Citi Upgrade Cites Unpriced AI Chip Upside

Shares of Advanced Micro Devices jumped this week after Citigroup upgraded the stock to a "buy" rating, arguing that the market has not yet fully priced in the company's upside from the ongoing boom in AI chip demand. Citi analysts pointed to accelerating orders for AMD's data-center GPUs and growing interest from cloud providers looking to diversify their AI hardware supply chains beyond Nvidia, suggesting AMD's earnings trajectory over the next several quarters could surprise to the upside.

The upgrade lands amid a broader rotation in tech markets toward hardware and infrastructure plays. Smaller, specialized semiconductor names have been quietly outperforming large-cap technology stocks in recent months as investors increasingly bet that the AI buildout's next phase will be defined by compute capacity and chip supply rather than software subscriptions. AMD's gains this week came even as some enterprise software names continued to underperform amid concerns that AI agents could disrupt traditional software-as-a-service business models.

The Citi upgrade also arrives against the backdrop of Nvidia's own expanding ambitions, including its push into PC processors with a new Arm-based chip unveiled at Computex and reported efforts to pitch new "Vera" CPUs to Chinese customers. With AI infrastructure spending now representing a significant share of expected S&P 500 earnings growth for 2026, analysts say the competitive dynamics between AMD, Nvidia, and other chipmakers are likely to remain one of the most closely watched storylines in markets for the rest of the year.