Belief & Risk Engine for Educational Stock Trading
Probabull is a belief and risk engine, not a hype machine. Most stock apps chase price targets and hot takes. This one gives you probability distributions instead of single numbers, evidence you can actually test, and reliability scores that tell you when the system just doesn't know.
The point is honest uncertainty. Forecasts come with calibrated confidence intervals, regime awareness, and clear triggers for what would flip the view. When conditions are too messy for a good call, it says so. Paper trading with guardrails that build habits, not gambling instincts.
Built in the open for researchers, developers, and curious minds who want to understand how modern quant systems actually work. Check out the implementation plan for the full technical blueprint.
Not another app claiming to predict stocks. Credibility comes from being honest about what you don't know, not from flashy accuracy numbers.
January 24, 2026
Starting Probabull for real. Working on the initial architecture, making sure the deep learning, reliability, and LLM pieces can plug together cleanly. Building this in the open because why not. Read the technical plan.
Check back for regular development logs, technical deep dives, and progress reports.
No raw price predictions. Instead: return distributions and risk events that actually matter.
Want the API specs and repo structure? Check the implementation plan.