XETRA:DTEGN.DE 5 November 2025

June 28, 2026, 3:08 PM EDT. The S&P 500's strong gains and elevated valuations, highlighted by the Shiller P/E CAPE ratio, raise concerns over a possible market correction in 2026. The CAPE ratio, measuring price against 10-year inflation-adjusted earnings, remains above historical averages but does not guarantee an immediate crash. Market concentration in tech giants like Nvidia, Microsoft, Apple, Amazon, Alphabet, Meta, and Broadcom mirrors past eras of dominance, such as the 1970s' 'Nifty Fifty' and the late 1990s internet boom, both followed by market declines. However, unlike previous bubbles, today's leading firms are profitable with robust cash flows and balance sheets. A stable economy with low unemployment and steady consumer spending persists, yet historical trends underscore the inevitability of periodic market corrections averaging 10% annually.