Bueno, pues ya está el "de esto ya avisamos" de la CNMV del que habrá que echar mano en el futuro próximo.

"This paper investigates whether large language models (LLMs) can generate reliable stock market predictions. We evaluate four state-of-the-art models – ChatGPT, Gemini, DeepSeek, and Perplexity– across three prompting strategies: a naïve query, a structured approach, and chain-of-thought reasoning. Our results show that LLM-generated recommendations are hindered by recurring reasoning failures, including financial misconceptions, carryover errors, and reliance on outdated or hallucinated information."

https://www.cnmv.es/DocPortal/Publicaciones/MONOGRAFIAS/DT_96_Large_Language_Modelsen.pdf