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For research questions, corrections, feedback or citation enquiries.
What We Can Help With
- Research questions: Methodology, data sources, or analysis clarifications
- Corrections: If you spot an error in any published content
- Feedback: Suggestions for improving the site or its content
- Professional inquiries: Collaboration, citations, or media requests
This is a one-person project, so replies are not guaranteed and may take a while. Corrections to published research are prioritised over everything else — see the editorial policy for how they are handled.
About This Site
QuantMedia is an independent research platform written and operated by Cemil Ertürk. The site publishes quantitative research, market analysis, and educational tools related to US financial markets. All content is for informational and educational purposes only and does not constitute financial advice.
Reporting an error
Published research gets corrected in place and the change is recorded rather than quietly overwritten. Two corrections have been published so far, both found by executing the code rather than reading it. To report one, include the page URL, the specific claim or number you believe is wrong, and — if you have it — the source or calculation that shows why. A reproducible counter-example is the fastest route to a fix.
For more details about the site and its author, see the About page. For data handling practices, see the Privacy Policy.