Microsoft shares climbed after the close on Wednesday as the tech giant reported fiscal fourth-quarter results that highlighted accelerating momentum in its cloud-computing division.

Azure revenue surged 43% year-over-year, a figure that significantly outpaced the consensus estimate of approximately 38% to 40%, according to market data.

The strong performance underscores the commercial viability of the company's massive capital expenditure program focused on artificial intelligence infrastructure.

The results provide a counterpoint to recent market anxiety over big-tech spending.

While peers like Alphabet have faced scrutiny over the return on investment for their data-center build-outs, Microsoft's latest print suggests that demand for AI-enabled cloud services is translating into tangible top-line growth.

The beat in the cloud segment, which remains the primary growth engine for the company, helped offset broader concerns about the pace of enterprise AI adoption.