Generative AI Empowers Financial Analysis: Innovative Applications of NLP Technology in Stock Market Data and Financial News

This project applies natural language processing (NLP) and generative AI technologies to the financial market. Through three core functions—sentiment analysis, automatic price fluctuation detection, and AI summary generation—it provides actionable insights for traders and analysts, demonstrating the potential of AI in the field of financial decision support. The original project is maintained by smritipioneer and was published on GitHub on June 16, 2026. Link: https://github.com/smritipioneer/Natural-Language-Processing-with-Generative-AI.

The financial market is information-dense, generating massive amounts of data daily, including news, financial reports, and social media discussions. Manual processing capacity is limited, and traditional analysis methods struggle to meet demands. NLP technology (especially breakthroughs in generative AI) provides ideas for solving this problem—machines can understand text and generate high-quality analysis reports. This project combines both to build an intelligent financial information processing system.

The tech stack uses Python, relying on Transformers (Hugging Face) and Pandas. The core modules include:

1. Sentiment Analysis Engine: Judges text sentiment polarity (positive/negative/neutral) and quantifies market sentiment;
2. Price Fluctuation Detector: Identifies abnormal stock price fluctuations and correlates them with news events;
3. Generative AI Summarizer: Compresses long texts into concise summaries to help quickly obtain core information.

Sentiment Analysis Implementation: Uses financial pre-trained models like FinBERT for fine-tuning, supporting multi-granularity sentiment (specific companies/industries) and time-series aggregation to generate sentiment indices; Price Fluctuation and Event Correlation: Detects abnormal fluctuations via statistical methods (Z-score), automatically retrieves relevant news, and builds causal relationship models; Advantages of Generative Summarization: Compared to extractive summarization, it has deeper semantic understanding, smoother expression, higher compression rate, and supports multi-document integration.

Application scenarios include:

• Quantitative Trading: Using sentiment signals as trading factors to build strategies;
• Risk Management: Early warning of reputation/compliance risks caused by negative news;
• Investment Reports: Automatically generating market summaries to reduce analysts' workload;
• Public Opinion Monitoring: Tracking company/industry media discussions to detect public relations crises;
• Smart Investment Advisory: Providing AI analysis recommendations for individual investors.

Challenges and solutions:

• Financial Terminology Understanding: Use financial pre-trained models like FinBERT;
• Sarcasm Recognition: Require complex context understanding models;
• Multilingual Processing: Multilingual NLP or machine translation preprocessing;
• Real-Time Performance: Model quantization, distillation, or edge deployment to optimize speed;
• Data Quality: Semi-supervised/active learning to reduce annotation costs.

Future directions: Integrate multi-modal data (text + charts + PDF), real-time stream processing, personalized recommendations, conversational interaction, and enhanced causal reasoning. Summary: This project demonstrates the potential of AI and NLP in the financial field. AI tools will free human practitioners to focus on high-level decision-making, and AI-human collaboration will become the industry's standard model.