Decomposing Equity Risk: The Case for Segment-Level Financial Derivatives with Automated Regulatory Settlement

Hamza, Ameer Hamza (2026): Decomposing Equity Risk: The Case for Segment-Level Financial Derivatives with Automated Regulatory Settlement. Published in:

Abstract

Equity markets price corporations as unified entities, yet large companies are composites of fundamentally different businesses. A fund manager who believes Amazon’s AWS will outperform while e-commerce underperforms has no exchange-listed instru- ment to express that view. This structural gap suppresses informed trading, impairs price discovery, and prevents segment-level risk transfer and alpha generation from thematic exposures. We argue that mandatory XBRL-tagged SEC filings have created for the first time a technically viable foundation for segment-level financial derivatives. Using five years of audited data for Amazon and Apple, we show that hypothetical segment strategies generate sustained alpha largely uncorrelated with par- ent equity returns and serve as efficient hedges for thematic portfolios. Segment-level derivatives represent a significant and addressable gap in financial market infrastructure.

• Item Type: MPRA Paper
• Language: English
• Keywords: financial derivatives, market microstructure, business segment reporting, XBRL, price discovery, risk decompo- sition, prediction markets, regulatory filings, earnings forecasting
• Subjects: C - Mathematical and Quantitative Methods > C8 - Data Collection and Data Estimation Methodology ; Computer Programs; C - Mathematical and Quantitative Methods > C8 - Data Collection and Data Estimation Methodology ; Computer Programs > C81 - Methodology for Collecting, Estimating, and Organizing Microeconomic Data ; Data Access; C - Mathematical and Quantitative Methods > C8 - Data Collection and Data Estimation Methodology ; Computer Programs > C87 - Econometric Software

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