Alphabet shares gained about 4.5% after the company announced the launch of its Gemini 3.1 Pro model and a new partnership with Sea Ltd. The updated AI version was made available in preview for enterprise clients and developers, strengthening integration into business workflows.

An additional catalyst was the collaboration with Sea Ltd to develop an “agentic” AI prototype for the Shopee platform. This type of artificial intelligence is capable of taking actions within applications rather than simply answering user queries, enhancing its commercial potential.

Investors viewed the news positively, seeing it as confirmation of Alphabet’s ability to monetize its AI innovations. Several analysts had recently reiterated “buy” ratings and raised price targets, further supporting market interest in the stock.

After the initial surge, shares stabilized around $314.97, up about 3.8% from the previous close. Year-to-date performance remains flat, with the stock trading close to its 52-week highs and maintaining appeal for long-term investors.