SAE-FiRE: Enhancing Earnings Surprise Predictions Through Sparse Autoencoder Feature Selection

Huopu Zhang, Yanguang Liu, Miao Zhang, Zirui He, Mengnan Du


Abstract
Predicting earnings surprises through the analysis of earnings conference call transcripts has attracted increasing attention from the financial research community. Conference calls serve as critical communication channels between company executives, analysts, and shareholders, offering valuable forward-looking information. However, these transcripts present significant analytical challenges, typically containing over 5,000 words with substantial redundancy and industry-specific terminology that creates obstacles for language models. In this work, we propose the Sparse Autoencoder for Financial Representation Enhancement (SAE-FiRE) framework to address these limitations by extracting key information while eliminating redundancy. SAE-FiRE employs Sparse Autoencoders (SAEs) to efficiently identify patterns and filter out noises, and focusing specifically on capturing nuanced financial signals that have predictive power for earnings surprises. Experimental results indicate that the proposed method can significantly outperform comparing baselines.
Anthology ID:
2026.findings-acl.265
Volume:
Findings of the Association for Computational Linguistics: ACL 2026
Month:
July
Year:
2026
Address:
San Diego, California, United States
Editors:
Maria Liakata, Viviane P. Moreira, Jiajun Zhang, David Jurgens
Venue:
Findings
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Publisher:
Association for Computational Linguistics
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Pages:
5363–5382
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URL:
https://preview.aclanthology.org/ingest-acl/2026.findings-acl.265/
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Cite (ACL):
Huopu Zhang, Yanguang Liu, Miao Zhang, Zirui He, and Mengnan Du. 2026. SAE-FiRE: Enhancing Earnings Surprise Predictions Through Sparse Autoencoder Feature Selection. In Findings of the Association for Computational Linguistics: ACL 2026, pages 5363–5382, San Diego, California, United States. Association for Computational Linguistics.
Cite (Informal):
SAE-FiRE: Enhancing Earnings Surprise Predictions Through Sparse Autoencoder Feature Selection (Zhang et al., Findings 2026)
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https://preview.aclanthology.org/ingest-acl/2026.findings-acl.265.pdf
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