(Bloomberg) — Alibaba Group Holding Ltd.’s stock surged the most in weeks after taking the wraps off a model that it claims performs as well as DeepSeek with just a fraction of the data required.Most Read from BloombergRepublican Mayor Braces for Tariffs: ‘We Didn’t Budget for This’Trump Administration Plans to Eliminate Dozens of Housing OfficesHow Upzoning in Cambridge Broke the YIMBY MoldNYC’s Finances Are Sinking With Gauge Falling to 11-Year LowRemembering the Landscape Architect Who Embra