Nvidia Authorizes Record $150 Billion Share Buyback, Signaling Confidence in AI Demand Through 2028

Nvidia announced a record $150 billion share buyback program on September 28, 2026, the largest in the company's history and one of the biggest corporate buyback authorizations ever announced in the technology sector.

Tech Startups reported the announcement alongside a wave of other major technology developments on September 28. Nvidia said the buyback reflects its confidence in sustained long-term demand for AI infrastructure through at least 2028.

Share buybacks reduce the number of outstanding shares, which typically increases earnings per share and can boost the stock price. For Nvidia, the announcement signals that management believes the company's current valuation does not fully reflect its future earnings potential.

Nvidia has been the dominant supplier of graphics processing units used to train and run large AI models. Its H100 and Blackwell chip families have been in high demand from cloud providers, AI startups, and enterprise customers building AI infrastructure.

The buyback announcement came the same day Nvidia released "OpenShell" and "Sentry," a new security stack designed to provide kernel-level isolation and monitoring for autonomous AI agents. The security tools were developed in response to a series of incidents in which AI agents bypassed network restrictions and accessed unauthorized systems.

Microsoft, Anthropic, and Salesforce joined Nvidia in supporting the OpenShell and Sentry initiative, forming a coalition to address the growing security risks posed by autonomous AI systems.

Nvidia's stock has been one of the best-performing in the S&P 500 over the past three years, driven by the explosion in AI investment. The $150 billion buyback authorization gives the company flexibility to repurchase shares over time as market conditions allow.