LLM-as-a-Judge Evaluation of Financial News Articles generated based on Factors of Stock Price Fluctuation
The 7th Financial Narrative Processing Workshop
Abstract
This paper proposes an LLM-as-a-Judge evaluation framework of stock price fluctuation articles automatically generated based on financial news, corporate disclosures, and stock price fluctuation data. This automatic article generation framework emulates the workflow of human financial journalists by analyzing recent stock price fluctuations and incorporating relevant causal factors extracted from textual and numerical information. In particular, the generation process utilizes news articles and numerical stock price data, including price fluctuation ranges over the past three days. Based on those automatically generated stock price fluctuation articles, this study places particular emphasis on the LLM-as-a-Judge evaluation methodology. We conduct an item wise human evaluation and compare it with the LLM-as-a-Judge automatic metric. We analyze the correlation among these evaluation methods to assess their reliability. Furthermore, through comparisons between zero-shot and few-shot prompting, we examine the effectiveness of the proposed framework and the validity of LLM based evaluation for assessing factual and causal consistency in financial text generation.