<div id="readability-page-1">U.S. stocks were mixed Monday as AI news continues to dominate financial headlines. getty U.S. stocks were mixed Monday as AI news continues to dominate financial headlines. The large-cap S&amp;P 500 index rose 0.4%, the technology-focused Nasdaq Composite rose 0.7%, and the Dow Jones Industrial Average, the blue-chip index, fell 0.1%.  On Monday, chipmaker AMD announced a multibillion-dollar partnership with OpenAI, the company behind ChatGPT. The deal involves AMD supplying chips to OpenAI over several years. AMD will generate tens of billions of dollars in annual revenue directly—and more indirectly if other buyers opt for AMD as an alternative supplier to Nvidia. The arrangement also gives OpenAI the option to buy about 10% of AMD.  Stock futures for the S&amp;P 500, Nasdaq 100 and Dow Jones are roughly flat ahead of the market open on Monday.  8 Expensive Investing Mistakes And How To Avoid Them Federal Reserve Board Governor Stephen Miran will speak at the Managed Funds Association Policy Outlook 2025 on Tuesday. Miran was appointed to the Fed’s policymaking committee just before the September interest-rate meeting. He disagreed with the quarter-point rate reduction, arguing instead for a larger cut.  MORE FOR YOU Miran has since been criticized for overstating the impact of immigration on inflation. The immigration impact was a key point in his argument for lower rates.  As Stagflation Fears Rise, Prepare For Higher Prices And Unemployment What does volatility mean for you? Volatility could mean everything or almost nothing, depending on your investing strategy, risk tolerance and investing timeline.  Volatility refers to how much and how quickly an asset’s value changes. If a stock’s price moves wildly up and down in short order, it’s highly volatile. Stocks that don’t experience dramatic price changes are less volatile.  Beta is a popular and understandable metric for measuring volatility. The baseline, market-level beta value is 1. When a stock’s beta is above 1, that stock is more volatile than the market. When a stock’s beta is below 1, that stock is less volatile than the market. In this case, the ‘market’ refers to the S&amp;P 500.  Understanding Risk Vs. Reward: What Every New Investor Should Know Here are four beta examples:  Volatility is important under these constraints:  Volatility is less important in these situations:  Many investors fear volatility, but you can manage it with a long-term strategy, an emphasis on quality and the right mindset.  6 Best ETFs To Buy And Invest In 2025 7 Top Stocks To Buy And Invest In 2025 6 Best Dividend Stocks To Buy For September 2025</div>

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<p>U.S. stocks showed mixed results on Monday, with the S&P 500 rising 0.4% and the Nasdaq Composite up 0.7%, while the Dow Jones fell 0.1%. AMD announced a multibillion-dollar partnership with OpenAI to supply chips, potentially generating significant revenue. Federal Reserve Governor Stephen Miran will speak on policy outlook, having previously disagreed with a recent rate cut. The concept of volatility is discussed, emphasizing its varying significance based on individual investment strategies and risk tolerance.</p>

- U.S. stocks showed mixed results on Monday, with the S&P 500 rising 0.4% and the Nasdaq Composite increasing by 0.7%, while the Dow Jones fell 0.1%.  
- AMD announced a multibillion-dollar partnership with OpenAI to supply chips, potentially generating significant revenue and allowing OpenAI to purchase about 10% of AMD.  
- Federal Reserve Board Governor Stephen Miran is set to speak on Tuesday, having previously disagreed with a recent interest rate reduction, citing immigration's impact on inflation as a key argument.

新手投资者周二摘要，10 月 7 日：人工智能新闻继续主导市场