Nvidia (NASDAQ:NVDA) added $150 billion to its share repurchase authorization, the largest increase of its kind in history. That leaves $235 billion of buybacks still waiting to be executed. It puts a lot of capital behind the company’s own shares while Nvidia also pushes into a new corner of AI, keeping autonomous agents under control.
A Buyback Built To Run Through 2028
Nvidia says it expects to work through the full $235 billion by the end of fiscal year 2028. That window overlaps with its guidance for 70% revenue growth in fiscal 2028, an outlook the market has largely shrugged off. The growth case leans on the big hyperscalers, whose data center spending is projected at nearly $800 billion this year and $1.3 trillion next year, according to Nvidia’s own estimates. Those are Nvidia’s numbers, and some investors worry that any slowdown in AI infrastructure spending would hit the stock hard. Inflation and geopolitical concerns have already cooled the shares’ momentum this year. Hyperscalers may start sharing 2027 capital spending guidance when they report quarterly results.
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Putting A Fence Around AI Agents
Nvidia also unveiled the Open Agent Safety Platform, designed to keep autonomous AI agents inside the limits their operators set. The pitch comes from security incidents in which an agent got around application-level controls to finish its assigned job. The platform has two main pieces. OpenShell is open source software that draws a runtime boundary around agents and traces their actions, running on Nvidia’s Vera CPUs. Sentry is a reference design on BlueField-4 DPUs that watches agents from outside their own software and quarantines any that stray in milliseconds.
Heavy Hitters Sign On
Anthropic is integrating OpenShell and BlueField with Claude Managed Agents, so enterprises can tighten control over agent access to the sandboxes where work executes. SpaceXAI is using the platform for Cursor coding agents and Grok models, and Scale AI is building its technologies into the Scale GenAI Portfolio. Salesforce connected OpenShell to Slack so teams can approve or reject an agent’s request for extra permissions, while SAP is embedding it in Joule Studio runtime. Nvidia counts over 100 organizations working with the technology.
Because OpenShell is open source, it can be extended to third-party compute platforms, including those from Arm and Intel. Sentry, by contrast, runs on Nvidia’s own BlueField-4 chips. The software is available on GitHub and Nvidia’s developer site, and the effort supports the Open Secure AI Alliance, a Linux Foundation group Nvidia started alongside over 120 organizations. One analysis argues that real-world use of AI is only beginning. If that holds, the need for agent controls is only beginning too.
What Does Wall Street Think?
Hedge fund ownership climbed to 285 funds from 275 in the prior quarter, so more big institutions are adding the stock rather than trimming it. Short interest is just 1.27% of the float, which signals almost no organized skepticism. At 24.88 times forward earnings, the shares carry real growth expectations, so delivery against the company’s guidance matters.
What Still Needs Proving
The buyback and the safety platform both point to a company with plenty of capital and a growing product shelf, but neither answers the bigger question. That question is whether hyperscaler spending lands where Nvidia projects for next year. The clearest test is the 2027 capital spending guidance those customers may reveal as they report results. On the safety side, adoption beyond the announced partners would show whether agent controls become standard equipment. Until then, the buyback that runs through fiscal 2028 and the growth guidance are best read together.
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This article is originally published at Insider Monkey.
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