Surges after earnings! AI drives network demand, Cloudflare (NET.US) raises full-year profit guidance for the third time this year.

Cloudflare (NET.US) released its Q3 2026 financial results for the period ended September 30 after the U.S. market close on Thursday: revenue of $782.5 million, up 39% year-over-year, the company's fastest single-quarter growth in nearly four years, with annualized revenue surpassing $3 billion, beating the consensus estimate of $736.8 million by 6.2%. Non-GAAP diluted earnings per share were $0.38, beating expectations by $0.04, compared with $0.27 in the year-ago period. The profitability picture must be examined separately: non-GAAP operating income was $137.1 million, a margin of 17.5% (versus $102.6 million and up 40% year-over-year in the prior-year period); but GAAP remained loss-making operating loss of $67.9 million, with the loss margin widening from 6.7% to 8.7% year-over-year, and net loss of $34.1 million (versus $1.3 million in the year-ago period), with diluted loss per share of $0.10. Free cash flow was $82.1 million, a margin of 10%, below 13% in the year-ago period. As the rapid adoption of artificial intelligence continues to drive demand for network services, the company raised its guidance for the third time this year: it expects full-year non-GAAP diluted earnings per share of $1.35, above its previous guidance of $1.25$1.26 and above the Wall Street estimate of $1.27; full-year revenue guidance of $2.963 billion$2.964 billion. Q4 revenue guidance is $845 million$846 million, roughly 6% above the $795.9 million expected. AI is both the growth engine and the narrative thread. CEO Matthew Prince called this quarter the company's "best quarter ever," saying Cloudflare has become "the development platform for the AI-driven internet"; its AI product line includes Workers AI, which lets developers run models, and AI Gateway, which manages model calls across multiple providers. Cloudflare has also developed developer tools for its applications and AI agents, which could increase demand for its infrastructure and security services as more software is used. Prince said in a statement: "We accelerated our growth rate, delivering our fastest revenue growth in nearly four years while also improving profitability." The company announced in May that it would cut about one-fifth of its workforce and shift to an operating model centered on AI agents; the forward-looking statements in this quarter's press release confirmed the related restructuring cost arrangements. Cloudflare's recently released financial reports show rapid business growth, with operations spanning internet infrastructure, security and development services. Cybersecurity stocks have performed strongly overall this year, but specific results vary by company and reporting period. For Cloudflare, artificial intelligence is both a growth opportunity and a security challenge. Thursday's regular session coincided with a historic selloff in tech stocks (Nasdaq -6.4% as the market weighed the impact of full Democratic control on data center construction), and Cloudflare fell with the broader market, but is still up 24% year-to-date, outperforming the Russell 1000's 7.5%; after the earnings release after the close, the stock surged nearly 20% at one point, and as of publication the gain had narrowed to 15%.