u/Heisenberg5118

Logged into TWS this week and noticed IBKR quietly launched a unified prediction markets interface on May 14. You can trade Kalshi, CME Group event contracts, and ForecastEx from one screen with automatic best-price routing — no separate account at each venue.

Found a writeup that breaks down what's actually live, the routing logic, and what's still missing (Polymarket isn't on it, obviously, since they're not US-regulated): https://predictionmarkets.us/articles/interactive-brokers-unified-prediction-markets-2026

A few things I'm trying to figure out:

• Does the best-price router actually pick the better side, or does it default to whichever venue has the contract listed first? Anyone backtested?
• Fees — is IBKR layering a markup on top of Kalshi's exchange fee, or are they passing through?
• ForecastEx volume is thin. Curious if the unified screen is going to drive any liquidity there or if it'll just be a Kalshi pipe with extra steps.

Feels like a bigger deal than IBKR is making it sound. First real "Bloomberg terminal for prediction markets" moment imo.

Hey everyone, I’m one of the founders of a new prediction markets site and wanted to introduce ourselves to the community as we continue rolling out the platform in beta.

Our goal is to build a true hub for the prediction markets space and not just content, but meaningful tools, market data, arbitrage/comparison features, education, operator reviews, and resources for both casual users as well as more advanced traders.

As we continue building, we’d genuinely love feedback from people who actually use prediction markets regularly. What features/tools do you wish existed? What frustrates you about the current ecosystem? What do you absolutely hate on sites like this? Any UX improvements, data ideas, tracking tools, alerts, visualizations, or market features you’d want to see?

Honestly, any feedback is good feedback at this stage. Have fun with it and spend our development budget with YOUR ideas 😄

Appreciate any thoughts from the community:
https://predictionmarkets.us

*MODS - Please delete if not acceptable and apologies in advance. Not trying to promote, rather build around needs.