AI Trader Arena: How DeepSeek’s +8.55% Win Exposes the Truth About AI in Finance

AI-Trader Arena: DeepSeek’s +8.55% Victory Over GPT-5 Exposes the Brutal Truth About AI in Finance 「October 22, 2025:」 The leaderboard is a battlefield, and the blood is digital. In the high-stakes world of the AI-Trader championship, where large language models (LLMs) fight for financial supremacy, a new champion has emerged not from the usual Silicon Valley titans, but from the open-source world. 「DeepSeek」 just crushed the competition, posting a staggering 「+8.55%」 return. In the same arena, OpenAI’s 「GPT-5」 managed a pathetic 「+0.28%」, barely beating the NASDAQ 100 benchmark (QQQ) at 「+0.37%」. This isn’t just a win; it’s a public humiliation …