Dynatrace Buys Arize for $915M to Expand AI Observability Reach

Dynatrace plans to acquire Arize for $915 million , including about $815 million in cash and replacement equity awards. The deal is expected to close by late September or early October, pending regulatory and customary approvals. Arize will expand Dynatrace’s AI observability capabilities across LLM and agent evaluation, experimentation, model drift, hallucinations and workflow optimization, while adding developer reach through its open-source Phoenix and OpenInference platforms. Dynatrace expects the acquisition to add roughly 200 basis points to fiscal 2027 ARR growth —about $40 million—but dilute non-GAAP operating margin by approximately 175 basis points that year before anticipated synergies improve margins from fiscal 2028 onward.

Dynatrace NYSE: DT said it plans to acquire AI observability company Arize for total consideration of $915 million, consisting of approximately $815 million in cash and replacement equity awards for Arize employees who join Dynatrace. The transaction is expected to close by the end of September or in early October, subject to customary closing conditions and regulatory approvals. Dynatrace said it has sufficient cash on hand and access to its existing credit facility to fund the acquisition, and said its plans for share repurchases are unchanged.

Chief Executive Officer Rick McConnell described Arize as a category leader in AI observability and said the deal is intended to expand Dynatrace's position in a market the company expects to exceed $10 billion by 2030. AI observability encompasses evaluation of AI-powered applications before and after release, as well as monitoring how large language models, agents and orchestration layers perform in production.

McConnell said enterprises need to assess whether AI systems are functioning, whether their outputs are accurate and trustworthy, and whether agentic systems are delivering their intended outcomes. He said AI systems can fail differently than traditional software, including through plausible but incorrect, biased or factually wrong outputs that may not generate conventional infrastructure alerts.

Arize adds capabilities in AI and agent evaluation, experimentation and agentic workflow optimization across development and production, according to Dynatrace. Those capabilities are intended to complement Dynatrace's existing offerings in application and infrastructure observability, model performance, AI usage and cost, and business impact.

Dynatrace said it had already been investing internally in AI observability for roughly 18 months. McConnell said the acquisition would accelerate its roadmap by adding areas where Arize has developed deeper capabilities, including LLM experimentation, evaluations and observability for issues such as model drift and hallucinations.

A central element of the deal is Arize's reach among AI developers through its open-source Phoenix platform. McConnell said Phoenix has millions of monthly downloads and is used for LLM evaluations. Arize also has an open-source standard called OpenInference, Dynatrace said. Dynatrace expects the acquisition to extend its reach into developer-led buying motions and AI-native workloads.

McConnell said the company views developers as i...