Datadog and Cloudflare Jump 5% as CoreWeave Results Lift Software

By Tom Whitfield

Datadog traded at $187.79 on November 11, up 5% in afternoon trading, as a beat-and-raise quarter from AI infrastructure provider CoreWeave (NASDAQ: CRWV) triggered a broad rally in cloud and cybersecurity software stocks. Cloudflare (NYSE: NET) rose 5% to $320.88, Fortinet (NASDAQ: FTNT) climbed 5% to $129.94, and CrowdStrike (NASDAQ: CRWD) gained 4% to $235.17.

The bounce starts from a deep hole. Datadog remains down 36% over the past month, and Fortinet has lost 33% over the same stretch. One strong session does not repair that damage.

Why did CoreWeave's quarter move the whole group?

CoreWeave reported after the close on November 10, beating expectations and raising guidance. The result eased two linked worries: whether AI infrastructure spending would hold up, and how that spending gets financed. Tech stocks rallied broadly on the report.

Software names tied to AI workloads gained the most. Datadog monitors cloud and AI applications. Cloudflare operates a global network that carries growing AI traffic. CrowdStrike and Fortinet secure the expanding infrastructure.

The rally also coincided with Chicago Fed President Austan Goolsbee calling the latest inflation report "borderline disturbing" while the Federal Reserve weighs further rate hikes. Higher rates typically weigh on growth-oriented software stocks, so the software gains came despite, not because of, the rate picture.

What knocked Datadog down in the first place?

Datadog's slide traces to its Q3 2026 report on November 4. Revenue rose 35% year over year to $1.2 billion, a healthy figure on its face. The problem sat below it.

Management said several large customers, including AI customers, renewed early at lower pricing in exchange for bigger commitments. Datadog's Q4 guidance also assumes revenue from its largest customer only at that customer's minimum commitment, even though the account spent above that level in Q3. In plain terms, the company is planning for the floor, not the actual pace of spending.

The early renewals reflect a longstanding strategy. CFO David Obstler described it on the earnings call: "Our motion is to increase the commitment of customers, broaden the platform, and extend the contract." CEO Olivier Pomel said on the same call that Datadog now serves over 850 AI customers.

How do the peers compare?

Momentum looks newer at Cloudflare. Its Q3 revenue rose 39% to $782.5 million, the fastest growth in nearly four years, and it raised its full-year outlook on November 5 while guiding Q4 revenue to $845 million to $846 million. CEO Matthew Prince said: "Our engine is firing on all cylinders, and we've found an even higher gear for this next phase of growth."

Margins tell a more mixed story. Cloudflare's GAAP gross margin slipped to 71.2% from 74% a year earlier, as network costs rose with AI traffic.

Fortinet raised its 2026 outlook after a strong Q3 report on October 28, which makes its month-long 33% decline stand out against its own results. CrowdStrike posted the smallest gain of the four on November 11, while Datadog led the group despite carrying the biggest recent losses.

How do these business models actually differ?

Datadog sells subscriptions priced on committed amounts plus usage, so revenue rises and falls with how heavily customers run their cloud and AI workloads. That design helped Datadog ride the AI boom, but it exposes the company when a large AI account cuts consumption.

Cloudflare leans on its global network and a developer platform, with Pool of Funds contracts that let customers spread spending across security, networking and developer products. CrowdStrike sells modules of its Falcon platform by subscription, and Falcon Flex licensing lets customers add modules over time.

Fortinet stands apart as the most hardware-heavy of the group. It pairs FortiGate firewall appliances built on its own FortiASIC chips with FortiGuard security subscriptions and FortiCare support.

Can the rebound last?

The open question is whether AI customers that renewed early will expand usage again in coming quarters. Optimists point to Pomel's remark that AI workloads moving to production "drive more cloud consumption and more usage of the data platform," along with platform adoption that keeps broadening across the customer base.

The bears counter that Datadog's Q4 guidance leans on a cautious read of its largest customer, and that higher rates could weigh on growth stocks generally. A sharp one-day bounce does not settle whether the month-long selloff has run its course. The clearest signal ahead is spending from Datadog's largest customer in coming quarters, which will show whether the AI reset was a pricing event or a demand event.