The S&P 500 and Nasdaq Composite ended at record highs on Thursday (July 24), supported by stronger-than-expected earnings from Alphabet. The S&P 500 edged up 0.07% to close at 6,363.35, while the Nasdaq gained 0.

US stocks closed mixed Tuesday, but the benchmark S&P 500 (^GSPC) was able to eke out a new record as Wall Street digested a new batch of earnings, including a tariff warning from General Motors (GM),

With Wall Street's surge to record highs, the U.S. stock market looks nearly as expensive as ever, and investors are debating whether the lofty valuations are a bearish signal or justified by the technology-heavy market's profit outlook.