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Arista Networks stock soared Tuesday after the network infrastructure company reported better-than-expected second-quarter earnings. The results provided further evidence that demand for artificial-intelligence services is accelerating, with hardware suppliers like Arista among the main beneficiaries. Arista reported adjusted earnings of $1.02 a share for the second quarter, up from 73 cents last year and above analysts’ call for 89 cents, per FactSet.

Big Tech stocks are soaring after the companies reported earnings last week, namely Microsoft (MSFT) and Amazon (AMZN). Yahoo Finance Technology Editor Dan Howley takes a closer look.

Amazon's accelerating cloud growth helped investors reconsider Meta's higher capital-expenditure plan and potential AI returns.

Blowout cloud earnings and a sudden geopolitical thaw sent the biggest AI names surging Monday, but the question investors are scrambling to answer is whether the rally signals a lasting regime change or just a relief bounce before the next round of capex anxiety.

Shares of hyperscaler companies climbed higher on Monday.

Meta's quarterly results were much better than some reports would have you believe.

Microsoft Q4 showed that its multibillion-dollar AI strategy is already paying off, and the best days may still be ahead.

CoreWeave partnered with Leidos to provide AI cloud services for federal agencies.

The major indexes fell and AI stocks dived through midweek, partly on soaring oil and yields, but Microsoft and Amazon provided support.

The tech rebound has legs. Stock futures were rising early Friday as the technology sector looked set to end a bad July on a positive note despite disappointing earnings from Apple. S&P 500 futures rose 0.

Despite plenty of uncertainty on some of the bigger economic issues, Q2 earnings season rolls along quite successfully to this point.

U.S. stocks rallied, with the Nasdaq jumping 2.8%, as Microsoft’s robust earnings report restored momentum to the artificial-intelligence boom.

Year-over-year revenue growth for Amazon Web Services came in at 37% for the second quarter as AI drives computing demand.

Microsoft is on course to add nearly $500 billion in market cap today after a 17% stock surge that would be its sharpest gain since 2008. In afternoon trading, the tech giant had added $484 billion in market cap, which would be the largest one-day gain in market value for any U.S. company on record, according to Dow Jones Market Data. The record is currently held by Nvidia, which added $440 billion in market cap on April 9, 2025.

(Updates with latest market prices and developments.) US benchmark equity indexes were higher int

AMD Stock Surges After Bullish Analyst Sees More AI Upside

Microsoft Corporation (NASDAQ:MSFT) and Meta Platforms, Inc. (NASDAQ:META) are both spending aggressively to secure leadership in artificial intelligence, yet their latest earnings reports have produced starkly different reactions. Microsoft Corporation (NASDAQ:MSFT) jumped 15% on Thursday after the tech giant reported better-than-expected fiscal fourth-quarter results and issued a better-than-expected outlook for the first quarter of 2027. Meanwhile, Meta […]

Uncharacteristically, the company missed the consensus analyst estimate for profitability.

July 30 (Reuters) - U.S. stock index futures steadied on Thursday after a sharp selloff driven by uncertainty around the Federal Reserve's policy outlook, while Microsoft's forecast-beating results

Traders will be watching Apple and Amazon earnings, fresh inflation data, and the direction of Treasurys and oil prices.

U.S. stock futures rose, as markets stabilized after reacting sharply to the Fed’s rate meeting Wednesday.

Meta whiffed on earnings, but the buying opportunity just got better.

Meta's record revenue driven by AI-enhanced advertising and new products is offset by a 55% expense surge and a sharp drop in free cash flow to $784 million.

(Updates with index/price moves and Fed/company/geopolitical news from the first paragraph.) US e

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Stock Market Today: The Dow Jones index dropped Wednesday ahead of the Fed decision and Fed Chair Warsh's comments. SK Hynix sold off.

Amazon reported its Q2 earnings after the bell on Thursday.

Retail sentiment remains ‘bearish’ on SPY and QQQ. Further weakness in QQQ will put it on track for the longest losing streak since August 2025.

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The social media company may also become a cloud computing provider.