Tuesday's trading session on Wall Street saw notable swings among the top 20 most active stocks by dollar volume. Micron Technology closed down 2.64% as the second-highest turnover stock, recording $26.059 billion in trades, while Nvidia Corp slipped 1.51% to $23.841 billion in volume, ranking fourth. In related news, Nvidia is set to collaborate with MediaTek on developing next-generation Spark series chips aimed at consumer personal computers. The company also confirmed it has invested $3.5 billion in convertible bonds issued by MediaTek, marking the latest step in deepening ties between the two firms.
Apple Inc. rose 2.61% to close as the sixth most active stock with $17.215 billion in trades. The tech giant announced a major leadership change, with Tim Cook stepping down as CEO to assume the role of Executive Chairman of the Board. John Ternus has been appointed as the new Chief Executive Officer, ending the 15-year "Cook era" and ushering in the "Ternus era." According to a company statement, Ternus will receive a compensation package valued at approximately $58 million for the 2027 fiscal year, while Cook will earn around $47 million in his new executive chairman role. Final payouts will depend on stock performance.
Tesla Inc. dropped 3.22% to rank seventh with $12.899 billion in trading volume. The electric vehicle maker's August vehicle registration data across Europe showed mixed results—registrations in France and Denmark surged dramatically year-over-year, while Norway and Sweden posted significant declines. Industry data indicated new Tesla registrations jumped 279% in France and 104% in Denmark, but fell 79% in Norway and 41% in Sweden.
Microsoft Corp. declined 1.24% as the eighth most active stock, with $10.541 billion in trades. The software giant announced on GitHub that its Windows 11 native UI framework, WinUI, has completed its open-source migration, with mainline development now officially transitioning to GitHub for public tracking. Microsoft launched the WinUI open-source initiative in 2025, progressing through four phases; after completing the third phase in May, the final migration process took over three months to finish.
Meta Platforms Inc. gained 1.08% to rank tenth with $9.086 billion in traded volume. The company's Superintelligence Labs is set to launch the MUSE voice transcription feature, which will be accessible via the Meta model API, Mac-based Meta AI, and MUSE code tools. Pricing for the API is set at $3 per 1,000 audio minutes.
Amazon.com Inc. fell 1.87% to close as the eleventh most active stock with $8.059 billion in volume. The Federal Trade Commission and multiple US states have jointly filed a lawsuit against the e-commerce giant, alleging it systematically overcharged advertisers more than $20 billion since 2019. The complaint claims Amazon misled 1.2 million advertisers—including over 500,000 small and medium-sized businesses—regarding pricing and terms for its "Sponsored Listings," which appear at the top of user search results. The lawsuit could potentially result in billions of dollars in civil penalties.
Alphabet Inc.'s Class A shares dipped 1.28% as the twelfth most active stock, trading $7.807 billion in volume. Google began rolling out its AI-powered image generation and editing tool, Google Pics, to select users on Tuesday. Designed to help business users create professional marketing, presentation, and promotional images, the tool leverages the Gemini and Nano Banana generative AI models. It can generate images from scratch or modify specific objects or text within existing images using natural language instructions.
SpaceX slipped 1.02% to rank thirteenth with $7.687 billion in trades. Reports indicated that Elon Musk has recently restructured the team responsible for building SpaceX's data centers, with several executives from the rocket and satellite internet divisions moving to the AI infrastructure team. The adjustment comes as SpaceX's AI data centers in Tennessee and Mississippi face ongoing civil engineering issues and persistent reliability concerns.
Broadcom Inc. edged down 0.18% to rank fifteenth, with $7.074 billion in trading volume. At the VMware Explore 2026 conference in Las Vegas, the company highlighted its latest developments in AI agent governance, open-source security, and data sovereignty.
Dell Technologies Inc. closed down 6.80% as the sixteenth most active stock with $6.812 billion in volume. However, the company's quarterly results exceeded expectations: Q2 revenue reached $47 billion, up 58% year-over-year and above the $44.8 billion forecast. Non-GAAP earnings per share came in at $7.04, a 203% surge and well above the projected $4.90. The full-year revenue guidance was significantly raised from approximately $167 billion to $192 billion, surpassing expectations of $173.8 billion. Annual non-GAAP EPS guidance was set at $25.50, far exceeding the predicted $19.10. In response, Dell shares jumped as much as 11% in after-hours trading.
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