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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2606.01077 |
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| _version_ | 1866914620771401728 |
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| author | Jiang, Xiongfei Cen, Tao Bai, Ling Jin, Lifu Zhang, Jiu Xiong, Long |
| author_facet | Jiang, Xiongfei Cen, Tao Bai, Ling Jin, Lifu Zhang, Jiu Xiong, Long |
| contents | Text emotions are extracted using natural language processing technique on a substantial corpus of analyst reports on the Chinese stock market. Subsequently, the text-based analyst sentiment indices are constructed. It is observed that both optimistic and pessimistic sentiments represent short-range memory. Optimistic and pessimistic sentiments are correlated with volatility positively and negatively, respectively. The analysis of transfer entropy reveals that past pessimistic sentiment affects future volatility. Further, we model the driving effect of analyst sentiment on volatility using a GARCH model. The results show that pessimistic sentiment is an explanatory factor for volatility, while optimistic sentiment is not. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2606_01077 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Effects of analyst sentiment on volatility dynamics in financial market Jiang, Xiongfei Cen, Tao Bai, Ling Jin, Lifu Zhang, Jiu Xiong, Long Physics and Society Text emotions are extracted using natural language processing technique on a substantial corpus of analyst reports on the Chinese stock market. Subsequently, the text-based analyst sentiment indices are constructed. It is observed that both optimistic and pessimistic sentiments represent short-range memory. Optimistic and pessimistic sentiments are correlated with volatility positively and negatively, respectively. The analysis of transfer entropy reveals that past pessimistic sentiment affects future volatility. Further, we model the driving effect of analyst sentiment on volatility using a GARCH model. The results show that pessimistic sentiment is an explanatory factor for volatility, while optimistic sentiment is not. |
| title | Effects of analyst sentiment on volatility dynamics in financial market |
| topic | Physics and Society |
| url | https://arxiv.org/abs/2606.01077 |