Stock market today: Dow, S&P 500, Nasdaq futures sink as worries about frothy valuations run high

Market Overview - US stock futures experienced a sharp pullback, with S&P 500 futures down 1% and Nasdaq 100 futures down 1.3%, indicating investor concerns over high valuations amid quarterly earnings reports [1][3] - Wall Street is increasingly nervous about companies' performance justifying their high market valuations, with big bank CEOs warning of a potential correction ahead [2][11] Company Earnings and Reactions - Palantir's shares fell over 5% despite solid quarterly results, as analysts raised concerns about its high price-to-earnings ratio [2][15] - Uber reported strong results, but its shares slipped, suggesting investor expectations were not fully met [4] - Spotify's stock rose after reporting better-than-expected Q3 earnings, beating analyst estimates on revenue and margin [7] - ADM's stock slumped 9% after cutting its 2025 profit outlook due to weaker crush margins and delays in US biofuel policy [8] - Nvidia's stock fell over 1% following news of Microsoft providing Nvidia chips to the UAE for the first time [9] Notable Corporate Developments - Denny's shares surged nearly 50% after announcing an agreement to be taken private by a group of investors [10] - Norway's sovereign wealth fund plans to vote against Elon Musk's $1 trillion pay package, marking significant opposition from a major stakeholder in Tesla [5][6] Economic Context - Investors are closely monitoring the ongoing US government shutdown, which has reached its 35th day, delaying the release of key economic data crucial for the Federal Reserve and Wall Street [5]