Softbank CEO Masayoshi Son Loses Nearly $5 Billion In Net Worth As Google Steps Up Rivalry Against OpenAI - Alphabet (NASDAQ:GOOG), Alphabet (NASDAQ:GOOGL)

Core Insights - SoftBank Group Corp. CEO Masayoshi Son experienced a significant decline in net worth, dropping by $4.9 billion, which has positioned him as the 32nd richest person globally according to Forbes [1] - Son's net worth has decreased to $49.3 billion, falling from the third richest in Asia to the eighth position, just below Uniqlo CEO Tadashi Yanai [2] Stock Performance - The decline in Son's net worth is primarily due to SoftBank's stock performance, which fell nearly 11% on the Tokyo stock exchange, resulting in a loss of almost $5 billion from his fortune [3] - Over the past month, SoftBank's stock has experienced a significant drop of 36.16%, following a 10.9% decrease earlier [3] AI Competition and Market Sentiment - Concerns regarding rising competition in the AI sector, particularly with the launch of Google's new Gemini 3 AI model, have contributed to the stock slump [4][5] - The recent downturn in SoftBank's stock reflects broader market sentiment surrounding AI and its potential impact on major industry players [6] - SoftBank has recently sold stakes in T-Mobile US Inc. and Nvidia Corp to fund large-scale investments, including a significant commitment to OpenAI [6] Antitrust Concerns - There are emerging concerns regarding potential antitrust issues related to the Stargate Project, a joint AI infrastructure initiative involving OpenAI, SoftBank, and Oracle Corp, which has raised questions about the consolidation of power among major AI players [7]