Bloomberg reports that Marvell is in advanced negotiations with optical device manufacturer Lumentum to acquire the latter through a all-stock transaction. Analysts from market research firm Cignal AI believe that if this deal is completed, it could allow Marvell to integrate DSP, lasers, and optical components into the same system, but it may also lead to direct competition with some of its customers.

Foreign capital continues to flow into large U.S. tech stocks, bonds of cloud service companies, and power grid infrastructure, making the connection between the dollar and the AI investment cycle even tighter. Reuters reports that recently, when the valuation of AI came under pressure, safe-haven funds flowed more towards the Japanese yen and Swiss franc, and the dollar did not receive the same support.

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.