01 — Writing
Writing
Notes on reasoning systems, markets, and the discipline of making complex things run.
Why reasoning systems forget
A short note on memory, context, and the quiet failures that appear when a system has to hold too much at once.
Making complex things run
Most hard problems aren’t hard because they’re unknown. They’re hard because nobody made them executable.
Markets as a language problem
On reading price as a kind of grammar — and what changes when you treat allocation as interpretation.
Notes from Seoul
Fragments on studying in a second language, and what it taught me about learning anything difficult.
02 — About
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, engineering, and quantitative finance across 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 tidy simulation and one that executes well.
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 currently holds a visiting scholar offer.
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-finance models delivered an audited return exceeding 51%, with a 2.13 Sharpe on over USD 1bn daily volume traded across Vertus’ allocation partners.
03 — Currently
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.