The technical side of quantitative finance, written to be read.
Mathematics
Models, derivations, and quant tools explained with in depth.
Engineering
Tooling, workflows, and infrastructure for serious technical work.
Finance
Real-world finance, from portfolio construction and risk to market structure and trading.
Built around a few simple principles.
Free
Open Source Quant is free to read and share. Good ideas should travel without paywalls or gatekeepers.
Collaborative
Better work emerges in public. Feedback, corrections, and extensions make ideas stronger.
Iterative
Articles are living documents. As research moves and methods improve, the writing should too.
Serious quantitative ideas should be open, readable, and useful.
We care about depth, but we care just as much about clarity. The goal is to explain ideas in a way that sparks understanding, confidence, and curiosity.
If something resonates—or something looks wrong—there are plenty of ways to contribute.
Ask a question
If something is unclear, that helps shape a better explanation.
Reach out on X →Suggest a correction
Spot a typo, bug, or mathematical mistake? Help sharpen the work.
Open the GitHub repo →Pitch an article
Have an idea worth sharing? We welcome thoughtful contributions and clear technical writing.
Read the contributor guide →Explore the code
This site is built in the open. Browse the source and see how it fits together.
View the repository →