On October 30th, Microsoft published a blog post inviting members of channel Windows Insider from Beta and Experimental to test the multi-version preview update of Windows. This update enhances the new Windows search experience, allowing users to directly adjust volume, brightness, and cursor size within the search results, as well as perform phone-related operations such as dialing and sending text messages through Phone Link. Additionally, Microsoft has introduced a new Intune privacy policy for enterprise customers, aimed at limiting the visibility of content in the feedback center.

Amazon's net sales in the third quarter increased by 12% year-on-year to $20.194 billion, falling short of expectations; EPS was at $1.89, also below expectations. AWS revenue increased by 39.3% year-on-year to $45.98 billion, and the operating margin rose to 38.7%, but the company's capital expenditures in the third quarter reached $77.26 billion, with free cash flow flowing out by $42.36 billion. The company maintained its guidance for annual cash capital expenditures of about $220 billion for 2026 unchanged. The median forecasts for fourth-quarter revenue and profit were both slightly lower than market expectations, and the stock price tumbled after the earnings report.

On October 31st, Bitcoin's white paper celebrated its 18th anniversary. Coincidentally, after the exposure of a $6.3 billion theft case involving Binance, the market once again focused on the division of responsibilities between self-hosting and third-party hosting. The article reviewed the peer-to-peer electronic cash system proposed in the white paper and summarized the explanations provided by the US SEC Investor Education Office regarding private key control and hosting risks.

Bitcoin approached $77,000 at the end of October and may close lower for the second consecutive month due to the decline in U.S. tech stocks and gold prices; some research institutions still believe that its cyclical low has passed.

In August, Trump criticized ExxonMobil and Chevron for making "too much money" amid a supply shortage. CNBC noted that driven by global conflicts, limited refining capacity, and tight refined oil supplies, Shell, BP, TotalEnergies, and ExxonMobil reported significant increases in refining business profits this week, while Chevron's downstream business profits also more than tripled compared to the same period last year.