Shares of Advanced Micro Devices soared 16% on Wednesday following a quarterly earnings report that topped Wall Street expectations. The chipmaker posted stronger-than-forecast revenue and issued forward guidance that surpassed analyst consensus, with its data center segment serving as the primary growth engine.

Investors piled into AMD on renewed conviction that the AI boom remains in its early innings. The company's data center revenue, which includes sales of its MI300 series AI accelerators, significantly outperformed estimates as cloud providers and enterprises continue to ramp up AI infrastructure spending.

The rally lifted AMD's market valuation by tens of billions of dollars and dragged semiconductor peers higher, underscoring broad optimism across the chip sector. Rival Nvidia's stock also edged up in sympathy, while the broader Philadelphia Semiconductor Index gained ground on the session.

Some analysts caution that AMD still trails Nvidia in AI chip market share and faces an uphill battle to close the performance gap. The elevated valuation now prices in sustained high growth, raising the bar for future quarters to justify the premium.