Investopedia·2025-11-21 22:20Core Insights - Nvidia's stock declined for the second consecutive day despite exceeding earnings estimates, raising concerns about an AI bubble affecting high-flying tech stocks [1][8] - Ross Stores experienced a significant stock surge after surpassing third-quarter sales and profit estimates, indicating strong performance in the back-to-school season and an optimistic outlook for the holiday quarter [2][7] - Oracle's shares fell sharply due to concerns over its elevated valuation and heavy borrowing related to data center investments, marking a 28% decline over the past month [5][7] Company Performance - Nvidia reported third-quarter earnings that surpassed Wall Street expectations, yet its stock fell by 1% as fears of an AI bubble persisted [8] - Ross Stores' shares surged by 8.4% after the company reported strong quarterly results and raised its outlook for the holiday season, reflecting consumer demand for discount retail [2][7] - Insulet's shares rose by 5.8% following an investor day event where the company provided a three-year sales and profit forecast that exceeded expectations [4] Market Reactions - Major U.S. equity indexes rebounded, with the S&P 500 rising by 0.9%, the Dow increasing by 1.1%, and the Nasdaq up by 0.8% [2] - Comments from the Federal Reserve Bank of New York president boosted expectations for potential interest rate cuts, positively impacting stocks in the housing market, including Builders FirstSource, which saw a 7.1% increase [3] - Oracle's stock faced the heaviest decline among S&P 500 stocks, dropping 5.7% amid ongoing valuation concerns [5]