Zijun (Marshall) Zhang
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Things I build

Exploring how agents could support quantitative research.

An independent idea I am developing alongside my PhD.

Independent exploration

In development

MetaArb

An independent project exploring how AI agents could take a market question through a full research cycle.

The idea is to let agents propose hypotheses, find relevant data, and design tests, then revisit their assumptions when the evidence is weak. I’m especially interested in separating patterns that hold up after costs from results that look promising only in hindsight. The project is still in development, and the code is private.