Meta’s new Muse AI assistant is creating fresh excitement across the technology sector, helping push Meta shares and several major chip stocks sharply higher.
Muse, launched on September 8, is designed as a personal AI agent that can do more than simply answer questions. It can help users complete everyday tasks such as sending emails, booking travel, filling out forms and working across supported apps and online services. Meta says the assistant runs through a dedicated secure virtual machine and gives users control over how much access it receives.
Early interest in Muse has been strong. The assistant quickly climbed the U.S. app rankings, adding to investor confidence that AI agents could become the next major stage of consumer artificial intelligence.
That enthusiasm had a major effect on Meta’s stock. The company’s shares jumped more than 11% on Monday, September 21, marking Meta’s biggest one-day rise in more than two years. The move helped bring new momentum to technology stocks after concerns about AI spending and future returns had recently pressured parts of the sector.
The rally quickly spread to semiconductor companies. Arm Holdings climbed about 17%, Intel gained more than 12%, while AMD rose around 10% and reached a market value of roughly $1 trillion. Investors appear to be betting that wider adoption of AI assistants could create another wave of demand for processors and data-center computing equipment.
AI agents such as Muse require significant computing power because they can perform multiple steps for users instead of producing only a single chatbot response. They may need to plan tasks, browse services, process information and take actions continuously. If these tools become widely used, demand could increase for both powerful AI infrastructure and traditional processors that support those workloads.
The renewed enthusiasm also helped lift the wider U.S. technology market. The Nasdaq reached a record high on Monday as investors returned to AI-linked shares, showing how quickly confidence around a successful AI product can influence companies across the semiconductor and technology industries.
The impact was not limited to U.S. companies. AI and semiconductor stocks in Asian markets also moved higher as investors reacted to stronger expectations for future computing demand. The reaction suggests that successful consumer AI products can influence the wider global supply chain, from software companies to chip designers and manufacturers.
Still, Muse is at an early stage. Its long-term impact will depend on whether people continue using AI agents regularly and whether Meta can turn strong early adoption into sustainable revenue. Privacy, security, reliability and access to third-party services will also remain important issues as AI assistants become capable of handling more personal and financial tasks.
For now, Muse has given investors a new reason to focus on the AI sector. The strong response to Meta’s assistant shows that attention is beginning to move beyond AI model development toward practical AI products that people can use in everyday life.
If AI agents continue gaining users, the technology could create fresh opportunities not only for Meta but also for chipmakers, cloud providers and other companies supplying the infrastructure needed to power the next generation of artificial intelligence.
