Nvidia authorized an additional $150 billion in share repurchases Monday, bringing total authorization to $235 billion through fiscal 2028. The increase exceeds the entire market capitalization of 217 companies in the S&P 500 and represents the largest single expansion of buyback authority in American corporate history.
The announcement arrived without earnings catalyst or conference call. Nvidia's board approved the authorization in a filing disclosed after market close Sunday, effective immediately. Shares rose 2.1% in Monday trading to close at $138.42, adding $68 billion in market capitalization on volume 14% above the thirty-day average. The company had $7.3 billion remaining under its prior authorization as of the January quarter.
The scale matters in three ways. First, Nvidia generated $74.2 billion in free cash flow over the trailing twelve months, meaning the new authorization represents roughly two years of current cash generation deployed exclusively to share reduction. Second, the fiscal 2028 horizon signals management confidence in sustained AI infrastructure spending through at least three more product cycles beyond Blackwell. Third, the timing sits 22 trading days before Nvidia's May earnings call, suggesting executives see current valuation as durably attractive rather than defensively cheap.
The authorization does not obligate execution. Nvidia bought back $12.1 billion in shares during fiscal 2024 and $9.5 billion in the first nine months of fiscal 2025, a pace that would consume the new authorization over 11 years at constant velocity. The company has never deployed buybacks at the rate this authorization would permit. What changed is the ceiling, not the commitment.
Allocators should watch three datapoints. First, actual repurchase volume disclosed in the May 28 earnings report will show whether the authorization signals immediate acceleration or long-runway optionality. Second, any change to Nvidia's 0.25% quarterly dividend yield, unchanged since the June 2024 ten-for-one split, would indicate how management balances buybacks against income return. Third, debt issuance. Nvidia carries $9.7 billion in long-term debt against $38.5 billion in cash, and investment-grade rates near 4.8% for ten-year paper would allow leverage-funded buybacks accretive to earnings.
The authorization runs through January 2028, 34 months from now. Nvidia's market capitalization sits at $3.38 trillion. At today's price, the full $235 billion would retire 6.9% of shares outstanding, assuming zero price appreciation and constant execution velocity. The company has bought back $48 billion since 2021. The new authorization is 4.9 times larger than cumulative repurchases over the past four years.