Null result
SEC Risk-Language Event Study
A null result preserved after an apparent signal was diagnosed as an artifact.
- Status
- Null result
- Version
- Archived null
- Date
- 2026
- Authors
- Aryan Patel
Abstract
An event-study prototype examining whether changes in SEC risk language were associated with a market response. A signal that first appeared meaningful did not survive the project's diagnostic review.
Research question
Did changes in the examined risk language carry a robust event response?
Methods
- SEC text retrieval
- Event-study design
- Artifact diagnosis
- Sensitivity checks
Data
Public SEC filings and market data used in the prototype.
Results
The apparent momentum result was diagnosed as an artifact and retained as a null rather than promoted as a finding.
Limitations
The study is a bounded prototype. Results depend on text construction, event alignment, window choice, and the examined sample.
- Code availability
- Prototype materials maintained in the research system.
- Data availability
- Public SEC and market sources.
- AI disclosure
- AI-assisted software supported literature retrieval, code generation, analysis, critique, and drafting. Deterministic systems produced and checked estimates. A human researcher retained responsibility for the question, design, interpretation, and release.
- Reproduction status
- Null result preserved with diagnostic record.