01 — Writing
Writing
Notes on reasoning systems, markets, and the discipline of making complex things run.
02 — About
Background
Julius Franck is a German entrepreneur and innovator working on problems that sit at the edge of what formal methods can handle.
He started his academic journey studying business and engineering at institutions in Germany and South Korea, graduating top of his class. His early career was spent building Europe’s largest copy trading platform, work that gave him an instinct for the distance between a overfit simulation and a system that survives enemy contact.
Later, he enriched this experience with graduate studies in quantitative finance, joining Yonsei University, one of South Korea’s three elite “SKY” institutions on a full merit scholarship. He completed his studies at Sogang University, where he is invited as a visiting scholar at the chair of finance (GSIS).
At Vertus, he develops the mathematical foundations of 42, a superintelligence designed to mimic the cognitive architecture of the human brain and operate with the rigour that high-stakes decisions require. In 2025, the Vertus quant models delivered an audited return exceeding 51%, and a Sharpe of 2.13 on daily transaction volumes over USD 1bn.
03 — Current
Current Focus
WORK
Building the mathematical foundations of 42 at Vertus.
RESEARCH
Quantitative models in live execution environments.
Writing
Publishing new notes here most weeks.