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S&P 500 Valuation Gauge Falls to Lowest Level in 30 Years

Makkler Newsroom
October 5, 2026

Yardeni Research says the S&P 500's PEG ratio has reached a 30-year low, while analysts expect strong earnings growth.

Key takeaways

  • Yardeni Research says the S&P 500's PEG ratio is at a 30-year low.
  • Analysts expect S&P 500 earnings to grow 29.5% in the third quarter.

The S&P 500’s price-to-earnings growth ratio, or PEG, has fallen to its lowest level in 30 years, according to Yardeni Research. That comes as Nvidia and AMD recently reached record highs.

A lower PEG can suggest a more attractive valuation because it compares share prices with expected earnings growth. The reading has led investors to argue the broader market may not be overheated.

Analysts expect S&P 500 earnings to rise 29.5% year over year in the third quarter. If that estimate is met, it would mark the third straight quarter of growth above 25% and the eighth consecutive quarter of double-digit growth, according to FactSet.

Wall Street analysts forecast 27.6% earnings growth in the fourth quarter and 32.4% for 2026.

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Further reading

This article was produced with the help of AI technology. Source: Yahoo Finance

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