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Large language models (LLMs) and their fine-tuning techniques have demonstrated superior performance in various language understanding and generation tasks. This paper explores fine-tuning LLMs for stock return forecasting with financial…

Computational Finance · Quantitative Finance 2024-08-06 Tian Guo , Emmanuel Hauptmann

Predicting stock market is vital for investors and policymakers, acting as a barometer of the economic health. We leverage social media data, a potent source of public sentiment, in tandem with macroeconomic indicators as…

Artificial Intelligence · Computer Science 2023-12-08 Shengkun Wang , YangXiao Bai , Taoran Ji , Kaiqun Fu , Linhan Wang , Chang-Tien Lu

Traditional stock market prediction methods commonly only utilize the historical trading data, ignoring the fact that stock market fluctuations can be impacted by various other information sources such as stock related events. Although some…

Statistical Finance · Quantitative Finance 2018-10-16 Xi Zhang , Yixuan Li , Senzhang Wang , Binxing Fang , Philip S. Yu

Micro-blogging sources such as the Twitter social network provide valuable real-time data for market prediction models. Investors' opinions in this network follow the fluctuations of the stock markets and often include educated speculations…

Mixture-of-Experts (MoE) models have shown remarkable capability in instruction tuning, especially when the number of tasks scales. However, previous methods simply merge all training tasks (e.g. creative writing, coding, and mathematics)…

Computation and Language · Computer Science 2024-06-18 Tong Zhu , Daize Dong , Xiaoye Qu , Jiacheng Ruan , Wenliang Chen , Yu Cheng

Large language models (LLMs) are increasingly deployed in quantitative finance for stock price forecasting. This review synthesizes recent applications of LLMs in this domain, including extracting sentiment from financial news and social…

Pricing of Securities · Quantitative Finance 2026-05-08 Olivia Zhang , Zhilin Zhang

The marvel of markets lies in the fact that dispersed information is instantaneously processed and used to adjust the price of goods, services and assets. Financial markets are particularly efficient when it comes to processing information;…

Trading and Market Microstructure · Quantitative Finance 2018-07-19 Stefan Feuerriegel , Helmut Prendinger

In the context where social media emerges as a pivotal platform for social movements and shaping public opinion, accurately simulating and predicting the dynamics of user opinions is of significant importance. Such insights are vital for…

Social and Information Networks · Computer Science 2025-05-07 Junchi Yao , Hongjie Zhang , Jie Ou , Dingyi Zuo , Zheng Yang , Zhicheng Dong

Forecasting financial time series (FTS) is an essential field in finance and economics that anticipates market movements in financial markets. This paper investigates the accuracy of text mining and technical analyses in forecasting…

Econometrics · Economics 2023-05-01 Ali Lashgari

Researchers and financial professionals require robust computerized tools that allow users to rapidly operationalize and assess the semantic textual content in financial news. However, existing methods commonly work at the document-level…

Information Retrieval · Computer Science 2019-01-03 Bernhard Lutz , Nicolas Pröllochs , Dirk Neumann

Real-world time series exhibit complex and evolving dynamics, making accurate forecasting extremely challenging. Recent multi-modal forecasting methods leverage textual information such as news reports to improve prediction, but most rely…

Machine Learning · Computer Science 2026-01-30 Lige Zhang , Ali Maatouk , Jialin Chen , Leandros Tassiulas , Rex Ying

The increasing influence of unstructured external information, such as news articles, on stock prices has attracted growing attention in financial markets. Despite recent advances, most existing newsbased forecasting models represent all…

Computational Engineering, Finance, and Science · Computer Science 2025-10-28 Jinwoong Kim , Sangjin Park

Predicting stock price movements during Earnings Announcements (EAs) is a significant challenge due to market noise and high-impact price discontinuities. In this study, we evaluate whether pre-announcement news sentiment, firm…

Machine Learning · Computer Science 2026-05-26 Manuel Noseda , Nathan Soldati , Marco Paina

A novel social networks sentiment analysis model is proposed based on Twitter sentiment score (TSS) for real-time prediction of the future stock market price FTSE 100, as compared with conventional econometric models of investor sentiment…

Social and Information Networks · Computer Science 2020-04-23 Xinyi Guo , Jinfeng Li

Predicting stock prices presents challenges in financial forecasting. While traditional approaches such as ARIMA and RNNs are prevalent, recent developments in Large Language Models (LLMs) offer alternative methodologies. This paper…

Statistical Finance · Quantitative Finance 2026-03-23 Pei-Jun Liao , Hung-Shin Lee , Yao-Fei Cheng , Li-Wei Chen , Hung-yi Lee , Hsin-Min Wang

We revisit the problem of predicting directional movements of stock prices based on news articles: here our algorithm uses daily articles from The Wall Street Journal to predict the closing stock prices on the same day. We propose a unified…

Machine Learning · Computer Science 2014-07-03 Felix Ming Fai Wong , Zhenming Liu , Mung Chiang

Predicting financial returns accurately poses a significant challenge due to the inherent uncertainty in financial time series data. Enhancing prediction models' performance hinges on effectively capturing both social and financial…

Computational Engineering, Finance, and Science · Computer Science 2024-03-08 Raffaele Giuseppe Cestari , Simone Formentin

News events can greatly influence equity markets. In this paper, we are interested in predicting the short-term movement of stock prices after financial news events using only the headlines of the news. To achieve this goal, we introduce a…

Statistical Finance · Quantitative Finance 2021-07-20 Qinkai Chen

Classical asset price forecasting methods primarily rely on numerical data, such as price time series, trading volumes, limit order book data, and technical analysis indicators. However, the news flow plays a significant role in price…

Statistical Finance · Quantitative Finance 2025-03-20 Kasymkhan Khubiev , Mikhail Semenov

Test-Time Scaling (TTS) enhances the reasoning ability of large language models (LLMs) by allocating additional computation during inference. However, existing approaches primarily rely on output-level sampling while overlooking the role of…

Artificial Intelligence · Computer Science 2025-09-29 Yixuan Han , Fan Ma , Ruijie Quan , Yi Yang