New York, January 29, 2026, 20:54 EST — Market closed.
- Palo Alto Networks shares dropped 4.8% to $174.85 on Thursday, then ticked up to $176.20 in after-hours trading
- Company announced it has finalized the acquisition of observability platform Chronosphere
- Investors are turning their attention to the Feb. 12 results for an early gauge of integration progress and deal effects
Palo Alto Networks, Inc. shares dropped Thursday following the completion of its acquisition of Chronosphere, a provider of observability platforms. The stock ended the day down 4.8% at $174.85 and was last seen at $176.20 in after-hours trading. 1
The timing is crucial as Palo Alto ramps up its focus on “platform” sales — encouraging customers to opt for fewer, more comprehensive bundles over individual point tools. Recent M&A activity shines a spotlight on this strategy just ahead of Friday’s trading session.
Chronosphere operates in “observability,” a sector focused on software that tracks cloud apps and infrastructure, helping teams detect outages and performance hiccups quicker. Palo Alto is wagering that this data can boost security efforts too, particularly as AI-driven systems multiply and generate more traffic.
Palo Alto set the Chronosphere acquisition price at $3.35 billion when it announced the deal in November, planning to pay with cash and equity awards. Reuters noted some investor skepticism over the valuation, highlighting worries that the price implied about 21 times Chronosphere’s annual recurring revenue — a subscription-based metric of expected repeat revenue. 2
CEO Nikesh Arora noted in Thursday’s announcement that customers want “fewer vendors” as they combine security and operations. Chronosphere co-founder Martin Mao said the deal aims to create “a new standard,” merging observability, security, and AI into a single stack. Palo Alto also revealed plans to integrate Chronosphere with its Cortex AgentiX tools. 3
The decline wasn’t limited to one stock. CrowdStrike shares dropped 5.3%, Fortinet slipped 0.7%, and Datadog — linked to monitoring and observability — plunged 8.8%. The Nasdaq 100 tracker fell 0.6%.
Palo Alto investors face a straightforward question: will the deal boost platform spending, or just bring extra integration headaches and costs? The company hasn’t shared updated financial targets following the closing.
But risks are clear. The observability space is crowded, and bundling it with security won’t automatically fly—customers may hold tight to budgets or resist new consumption-based pricing models.
Attention turns to upcoming quarterly results. Palo Alto is slated to report on Feb. 12, per market calendars. That earnings call will offer the first clear sign of whether Chronosphere shifts the company’s stance on growth, margins, and how it’s handling deal integration. 4
