Apple and Nvidia Dominate S&P 500 Index with Record 15% Concentration

The combined weighting of Apple (AAPL) and Nvidia (NVDA) in the S&P 500 Index has surpassed 15%, marking a new record for two-stock concentration. This milestone exceeds the 9.1% share that Microsoft and General Electric commanded during the peak of the dot-com era.

Apple shares reached a new record high of $345 following the launch of the iPhone 18 and the debut iPhone Duo foldable device, while Nvidia projects fiscal year growth of at least 70%, with CEO Jensen Huang indicating potential for over 100% expansion if supply constraints ease.

The S&P 500's ten largest companies collectively represent 38.69% of the total index value. Apple holds a 7.40% weighting in the index, while Nvidia commands the largest position at 8.21%. When combined, these technology leaders account for 15.61% of the total index value.