Personal investor · Learning in public
Ou Liu 刘欧
I am learning stochastic processes and financial markets while testing an investing research framework in live practice.
This is a working record of how I study, form views, and revise decisions under uncertainty. The framework is still being tested and is not presented as a finished system.
Now
Learning, testing, revising.
My current work sits between study and practice: building a clearer understanding of stochastic processes and financial markets, then using that understanding to improve a fundamental investing process.
Live practice is the test environment. Conclusions remain provisional, and the process is expected to change as evidence accumulates.
Paths
Three parts of the site.
Investing Lab
Framework design, uncertainty review, and lessons from testing ideas in live practice.
Explore the lab 02Learning Notes
Notes on stochastic processes, financial markets, and the concepts connecting them.
Read the notes 03Math Archive
Earlier mathematical notes and research material, preserved as an archive.
Open the archivePublic boundary
The process is public. The portfolio is not.
This site focuses on learning notes, framework design, and high-level review. Detailed trade records, position data, and account-level results stay private.
These are personal research notes, not recommendations.
Archive note
Mathematics remains part of the record, not the current identity.
I have stepped away from academic mathematics. Notes and papers from that period remain available for reference, but they are no longer the main thread of this site.
Even after leaving Germany, the body has not simply returned to normal, and mentally I am still far from fully recovered. The present work is part of trying to do better.
Visit the Math Archive