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1. llm-earnings-signal llm-earnings-signal Public

   Can a language model read company earnings reports well enough to predict stock returns? Tested on 676 reports (2023-2026) against a classic finance word list, with a clean test on reports newer th…

   Python

2. fama-french-factor-regression fama-french-factor-regression Public

   Do funds earn real alpha? CAPM, Fama-French 3/5-factor and momentum regressions on 9 ETFs/active funds with Newey-West errors, multiple-testing corrections, rolling exposures and LLM explanations.

   Python

3. fraud-detection-risk fraud-detection-risk Public

   A cost-optimized fraud risk framework linking e-commerce chargeback business logic with an end-to-end LightGBM classification pipeline, custom loss functions, and SHAP explainability.

   Jupyter Notebook

4. three-statement-model-and-DCF three-statement-model-and-DCF Public

   Three-statement model and DCF valuation of Salesforce (CRM) built from SEC filings: RPO-driven revenue, scenarios, sensitivities, audit checks.

   Python

5. visa-roi-toll-road-model visa-roi-toll-road-model Public

   ROIC vs WACC analysis of Visa as a "digital toll road": 5-yr audited history, FY26–30 base case, and a like-for-like Mastercard peer comparison. Built from SEC filings.

   Python