Investing.com -- Cipher Mining Inc. (NASDAQ: NASDAQ: CIFR) shares climbed 20% following the announcement of a significant investment by SoftBank (TYO: 9984) Group Corp., indicating a strong market response to the new partnership.

Shares of Japanese chip-related firms were feeling the heat on Monday. Today’s slump comes as Chinese AI startup DeepSeek gained traction with its updated AI model, raising fears about potential challenges to US technological dominance.

Shares of Japanese semiconductor-related companies extended their losses on Tuesday after Monday’s selloff, driven by the release of the Chinese AI model DeepSeek. The selloff in US tech stocks added to the downward pressure,

Group, led by Japanese billionaire Masayoshi Son, plans to approach private equity firms Apollo Global Management (NYSE:APO) and Brookfield for funding assistance with the Stargate AI project, Nikkei reported.

The president said it will be the largest AI infrastructure ever built and that it will help counter technology threats from China and other countries.

March E-mini S&P futures (ESH25) are up +0.67%, and March E-mini Nasdaq futures (NQH25 ... after the company teamed up with Softbank Group and Open AI to form a $100 billion joint venture to ...

The group is also "evaluating potential sites across ... Initial equity funders: SoftBank, OpenAI, Oracle, and MGX, which is a technology investment firm based in the United Arab Emirates.

Market heavyweight SoftBank Group is losing almost 6 percent ... The Dow fell 148.82 points or 0.3 percent to 44,424.25, the Nasdaq slid 99.38 points or 0.5 percent to 19,954.30 and the S&P ...

Market heavyweight SoftBank Group is losing almost 6 percent ... at 6,012.28, while the Nasdaq settled with a loss of 612.47 points or 3.07 percent, at 19,341.83. The major European markets ...

Among the actives, Nissan Motor tanked 2.45 percent, while Mazda Motor retreated 1.67 percent, Toyota Motor declined 1.45 percent, Honda Motor sank 0.83 percent, Softbank Group tumbled 1.81 ...

Among the actives, Nissan Motor climbed 1.14 percent, while Mazda Motor shed 0.69 percent, Toyota Motor tumbled 1.73 percent, Honda Motor rose 0.27 percent, Softbank Group retreated 1.33 percent ...