Overview
- Investors have pushed large U.S. technology and AI‑exposed stocks sharply higher, driving price gains concentrated in a handful of firms.
- The Shiller cyclically adjusted P/E stands around 41, well above its long‑run average, a reading that commentators say rivals past market extremes.
- Measured forward P/E has declined to about 20.5 because analysts have raised next‑12‑month earnings, with FactSet showing roughly 23% bottom‑up earnings growth penciled in for the coming quarter.
- Major research notes, including Bank of America, warn that speculation is at extreme levels and that past episodes of high‑multiple gaps have preceded rapid valuation 'snapbacks'; a late‑June sell‑off already erased hundreds of billions of dollars in market value.
- Some analysts say normalizing the recent surge in profits would push the Shiller CAPE far higher — an outcome that would make stocks look even more stretched and could amplify losses for retail investors, leveraged positions, and frothy IPOs such as SpaceX.