About

Ou Liu (刘欧) I am learning stochastic processes and financial markets while testing an investing research framework in live practice. I use this site to keep public notes on what I am learning, how the framework changes, and where experience disagrees with the model. The framework is still being tested. Nothing here should be read as financial advice, and detailed trade records and position data remain private. Leaving mathematics was not only an academic change. My years in Germany left serious physical problems, including severe dry eye and persistent inflammation around the throat and nose, and also a depressive period that I am still recovering from. Even after leaving, the body has not simply returned to normal, and mentally I am still far from fully recovered. I do not want this site to be centered on that period, but it is part of the background: I am still trying to do better. ...