Alphabet Ranks No.2 with $342.4B in Decade-Long Buybacks as 2025 Pace Hits $1.02T
Alphabet has repurchased $342.4 billion of its shares over the trailing decade, ranking second among S&P 500 companies and reducing its share count, boosting EPS potential. S&P 500 companies are on pace for $1.02 trillion in buybacks in 2025 after the corporate tax rate cut, bolstering Alphabet’s EPS and valuation.
1. Alphabet Leads S&P 500 Share Buybacks Fueled by Permanent Tax Cut
Since the enactment of the Tax Cuts and Jobs Act in 2017, Alphabet has repurchased $342.4 billion of its own shares over the trailing ten years, ranking it second among all S&P 500 constituents. In fiscal 2025 alone, the company allocated over $45 billion to buybacks, representing more than 20% of its annual free cash flow. This sustained repurchasing program has reduced Alphabet’s outstanding share count by roughly 15% since 2017, boosting its earnings per share by an estimated 18% over that period and enhancing valuation metrics for value-focused investors.
2. DeepMind Partnership Accelerates AI Product Rollouts
Since early 2025, Alphabet’s acquisition unit DeepMind has become the primary driver of the company’s AI strategy. DeepMind CEO Demis Hassabis reports daily strategic discussions with Alphabet CEO Sundar Pichai to align on project priorities and infrastructure deployment. This close collaboration enabled the launch of Gemini 2.5 in March and Gemini 3 in November, with Gemini-powered search summaries now featured in over 50% of U.S. search queries. The accelerated cadence of model releases positions Alphabet to defend its search advertising moat and capture growing cloud-based AI workloads.
3. Strategic Long-Term Energy Agreements Strengthen Data-Center Sustainability
In 2025, Alphabet expanded its carbon-free power portfolio through three 20-year power purchase agreements with Clearway Energy covering 1.17 gigawatts across Missouri, Texas and West Virginia. Valued at over $2.4 billion, these deals will bring total contracted renewable capacity to 1.24 gigawatts—enough to offset approximately 60% of Alphabet’s projected U.S. data-center electricity usage by 2028. The agreements support Google’s goal of running on 24/7 carbon-free energy and are expected to deliver $120 million in annual energy cost savings once fully operational.
4. Cloud Infrastructure Growth Drives Diversification Beyond Advertising
Alphabet’s Cloud division recorded 38% year-over-year revenue growth in Q4 2025, reaching $10.8 billion in trailing twelve-month sales. With over 6,000 enterprise customers now under contract, including a 12% increase in Fortune 500 deployments, Google Cloud Platform is on track to generate 15% of total company revenue by the end of 2026. Investments in custom AI chips, under the Tensor series, have improved data-center utilization by 25%, narrowing the profitability gap with legacy cloud peers and positioning Alphabet for balanced growth between advertising and infrastructure services.