Author

Krzysztof Podgórski

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Open access Sep 2026

Do Weather Variables Affect Stock Companies in the Same Way as Fundamental Variables? GARCH-Based Modeling and a Sustainable Finance Perspective on the Case of Banks Listed on the Warsaw Stock Exchange

This study examines the impact of a financial market anomaly (weather) as a physical climate risk on the stock returns and changes in trading volumes of 13 major banks listed on the Warsaw Stock Exchange (WSE) from 2020 to 2025, advancing our understanding of sustainable finance aspects. Employing GARCH-family models,...

Bartłomiej Lisicki, Krzysztof Podgórski · Sustainability · 0 citations

Review Open access Oct 2026

The Impact of Sentiment Integration on Algorithmic Trading Performance: A Systematic Review of Multi-Modal Machine Learning Architectures

Traditional algorithmic trading relies heavily on structured financial data, but in contemporary high-density information environments, this uni-modal approach is becoming insufficient. The purpose of this study is to evaluate the impact of integrating sentiment analysis from financial news and social media on algorith...

Krzysztof Podgórski · Analytics · 0 citations

Review Open access Jul 2026

Ensuring Data Integrity in Official Financial Statistics: A Review of Hybrid AI and XAI Methods in the Context of Market Efficiency and Value Investing

The integrity and accuracy of financial data are prerequisites for market efficiency; however, data anomalies and quality issues severely compromise their “fitness for use” in sophisticated decision-making processes, such as value investing strategies. This article reviews the application of advanced artificial intelli...

Krzysztof Podgórski · Journal of Official Statisti... · 0 citations