Apple’s iPhone sales fell in the all-important December quarter, a sign that its artificial-intelligence software has yet to kick off a new cycle of growth for its most valuable product.On Thursday, Apple reported that iPhone sales for the quarter were down nearly 1% from the prior year to $69.

Microsoft Corp. said Wednesday that its profit for the October-December quarter grew 10% from the same time last year as it works to capitalize on the huge amounts of money it has spent to advance its artificial intelligence technology.

Investors rallied behind International Business Machines’ artificial-intelligence strategy, driving the stock up after the company released its latest quarterly earnings Wednesday. The tech company said it has taken an open-innovation approach to artificial intelligence,

A team of scientists at the University of Toronto have successfully implemented AI tools to speed up the process of discovering new possible cancer treatments, from years to just a month.

Just as much as chip stocks were getting hammered after Chinese startup DeepSeek's AI progress sent the broader market into a tailspin on Monday, shares of companies powering the AI revolution were plunging as investors questioned data centers' actual power demand.

Markets rallied last week but face premarket losses due to AI concerns. A busy week lies ahead with major earnings, economic data, and geopolitical uncertainty.

Microsoft posted strong Q2 2025 earnings, beating expectations with robust cloud and AI growth, though it faces challenges in maintaining its Cloud segment's rate of growth.

KLA's profit rose in its second quarter and revenue hit the upper end of what the company had previously expected. Shares increased about 4% to $771.10 after markets closed. The stock is up 24% over the past 12 months.

There were some bright spots in Apple's report, soothing investors who feared the worst coming into earnings. First off, Apple topped expectations on overall revenue even as it came up short in Greater China and with the iPhone segment.

Intel Corp. saw further declines in revenue during the latest quarter but beat its guidance on a closely watched margin number, signaling some financial recovery in the business as Chips Act money began flowing. However, the company provided a first-quarter outlook that was below expectations for both the top and bottom lines.

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The iPhone maker reports quarterly results after the closing bell today. Here’s what investors will be looking out for. Apple is expected to earn $2.35 a share for its fiscal first-quarter, which ended in December,