Meta’s stock is enjoying its best month in 13 years thanks to the company’s hot new AI assistant

Meta's shares are on track for their strongest monthly performance in 13 years, a rally that coincides with growing user interest in the company's new AI assistant, Muse. According to the report, Muse is gaining popularity and helping persuade investors that Meta's substantial spending on artificial intelligence is beginning to produce visible products rather than just costs.

The market relevance here is less about any single feature than about narrative. Meta has committed heavily to AI infrastructure, and investors have debated when those outlays would translate into engagement or revenue. A well-received consumer assistant offers an early, tangible data point suggesting the strategy can reach mainstream users. That helps shift the conversation from spending levels toward potential returns.

What to watch: whether Muse's adoption holds beyond the initial novelty phase, how Meta monetizes the assistant over time, and whether management provides clearer disclosure on AI-related costs and benefits in upcoming earnings. For now, the stock move reflects improved sentiment — sentiment that will ultimately need to be validated by sustained user metrics and financial results.