Alphabet Joins Micron and Nvidia in Driving 40% of S&P 500 EPS Forecast Gains
Micron, Nvidia and Alphabet drove over 40% of the S&P 500’s year-to-date EPS forecast increase, while the index’s ten largest stocks now comprise nearly 40% of its weighting. Analysts maintain a year-end S&P 500 target of 7,750 and a bull scenario of 9,000 based on continued AI investment.
1. AI Leaders Drive EPS Forecast Gains
Micron, Nvidia and Alphabet have generated more than 40% of the S&P 500’s year-to-date increase in consensus earnings-per-share forecasts for 2026, highlighting the outsized earnings contributions of leading AI-focused technology companies.
2. Record Concentration in S&P 500 Weightings
The ten largest companies now represent nearly 40% of the S&P 500’s total market capitalization, marking the highest concentration level on record and underscoring the benchmark’s reliance on a handful of mega-cap stocks.
3. Bullish Outlook Supported by AI Spending
The research team retains a year-end S&P 500 target of 7,750 and a bull scenario of 9,000, citing continued AI-driven investment in information technology, communication services and consumer discretionary sectors as the primary growth catalyst.




