Welcome Back To The Arena, GameStop

GameStop made an unsolicited ~$56B bid for eBay as Ryan Cohen eyes a commerce empire. Anthropic finalizes a $1.5B JV with Blackstone and Goldman Sachs, Amazon opens its logistics network to outside companies, and a Harvard study finds AI outperforms ER doctors at triage. GameStop makes an unsolicited ~$56B offer to buy eBay after building a ~5% stake, offering $125/share in cash and stock, a ~20% premium on May 1's closing price (WSJ) Sources: Anthropic is finalizing a deal for a $1.5B JV with Blackstone, Goldman Sachs, Hellman & Friedman, and others to sell AI tools to PE-backed companies (WSJ) Amazon debuts Supply Chain Services, which lets companies use its logistics network to move, store, and deliver everything from raw materials to final products (Reuters) An analysis of 1.6M Polymarket accounts since November 2022: 0.1% of users get 67% of the profits, with the highest-frequency traders seeing the most success (WSJ) Study: OpenAI's o1 correctly diagnosed 67% of emergency room patients using electronic records and a few sentences from nurses, vs. 50-55% for triage doctors (The Guardian)