Microsoft Q2 Beats Estimates but $400B Selloff Hits AI Capex and Margins

Microsoft’s latest quarterly earnings underscored the scale of its AI-powered growth, but investors recoiled anyway, erasing as much as 10–12% from the stock and more than $400 billion in market value after the company flagged surging capital spending and thinner margins microsoft +1. The selloff helped pull the tech-heavy Nasdaq down about 0.7–0.8% and left software among the worst-performing sectors on Thursday siliconangle +1.

The company reported fiscal Q2 2026 revenue of $81.3 billion, up 17% year over year, with non‑GAAP earnings per share climbing 24% to $4.14, both ahead of Wall Street estimates microsoft. Microsoft Cloud revenue jumped 26% to $51.5 billion, while Azure and other cloud services grew 39%, confirming that demand for AI and cloud infrastructure remained robust microsoft. Yet a record $37.5 billion in quarterly capital expenditure and leases—roughly two‑thirds on GPUs and other chips—combined with softer margin guidance to spark the sharpest one-day fall in Microsoft shares since 2020 microsoft +2.

Why a Big Beat Triggered a Big Selloff

Despite the beat, investors focused on whether the economics of Microsoft’s AI build‑out would keep pace with its spending. Cost of revenue grew faster than sales, pressuring gross margins to around 68%, the narrowest in roughly three years, and the company’s guidance implied lower operating margins than many analysts had penciled in futurumgroup +1. “Revenues are up 17% and the cost of revenues are up 19%. So if that is a new long-term trend, that is one of my concerns,” portfolio manager Eric Clark told Reuters futurumgroup.

Another flashpoint was concentration risk around OpenAI. Microsoft disclosed that its commercial remaining performance obligation—its backlog of contracted work—had surged to $625 billion, more than double a year ago, but said about 45% of that was tied to OpenAI microsoft +1. That raised questions over whether its AI partner would fully realize such large, multi‑year commitments. As Jefferies analyst Brent Thill put it on CNBC, the key issue is whether OpenAI “can achieve these financial goals” needed to pay hyperscalers like Microsoft investopedia. Slowing momentum in certain areas, such as search advertising and gaming, added to worries that legacy businesses may not offset the AI capex drag in the near term microsoft +1.

How Microsoft’s Slide Hit the Broader Tech Trade

Microsoft’s drop ricocheted across markets, challenging the narrative that AI spending by “Magnificent Seven” giants would be an almost unmitigated boon for tech stocks. The company’s slide pulled major software and cloud names lower, with firms such as ServiceNow, Salesforce, Adobe, Oracle and Datadog all trading down as investors reassessed how much near‑term profit they were willing to sacrifice for AI-driven growth siliconangle +2. One Reuters wrap described a “flight” from richly valued tech as soaring AI budgets raised fears about returns on investment across the sector indmoney.

The Nasdaq Composite fell about 0.7–0.75% and the S&P 500 slipped roughly 0.1–0.15%, according to preliminary figures cited by Reuters and Investopedia, with Microsoft alone accounting for an outsized share of the drag siliconangle +1. The episode highlighted how heavily broad equity benchmarks now depend on a handful of AI leaders: a double‑digit percentage decline in a single mega‑cap briefly wiped out hundreds of billions in paper value and snapped a six‑session global equity winning streak futurumgroup +1. While other Big Tech names such as Meta rallied on clearer evidence that AI investments were already boosting profits, Microsoft’s results suggested markets were starting to distinguish sharply between “trust us” AI capex stories and those showing immediate payoffs seekingalpha +1.

The Bigger Picture

The violent reaction to an otherwise strong quarter signaled a turning point in the AI trade: investors are no longer rewarding growth at any price, even for Microsoft. With AI-related infrastructure spending now measured in tens of billions of dollars per quarter, markets are pressing management teams for proof that every incremental dollar of capex will translate into durable, high‑margin revenue rather than a permanent squeeze on profitability futurumgroup +2. For Microsoft and its peers, the message from Wall Street was clear: the AI build‑out can continue, but the grace period for “spend now, explain profits later” appears to be closing.