Stock market live streaming has become an important channel for investors to access market information, but such content is often emotionally charged and loosely structured, potentially affecting viewers' emotions and trading decisions, thereby indirectly disturbing market stability. To address the need for automated analysis of massive volumes of live streaming text, this study introduces Large Language Models (LLMs) for sentiment analysis and information mining. We collected 7,912 text segments from 20 live sessions on the Tiantian Fund platform and manually annotated financial entities, state descriptions, and sentiment tendencies. The Qwen2.5 model was fine‑tuned with LoRA via the LLaMA‑Factory framework. Results show that on entity‑containing content, the fine‑tuned model achieves significantly higher text similarity and ROUGE scores; however, on noisy text without entities, performance declines, indicating that automated processing still faces challenges such as overfitting and semantic drift. Overall, LLMs show the potential to process unstructured financial live streaming text in batch, offering new technical references for precise market regulation and investor education.
Research Article
Open Access