Anyone trading prediction markets programmatically?
Been building automated systems to compare prices between Kalshi and Polymarket on the same events. The spread between venues on sports contracts is surprisingly wide - sometimes 5-8 cents on identical outcomes. Curious if others here are doing similar cross-venue work and what your stack looks like. Im running Python/FastAPI with direct websocket integrations to both platforms.
I know someone who is trading daily weather temperature predictions on prediction markets and using the best weather predictions he can find. It thin markets but I think there is some edge there.