Hall Street
Classroom prediction markets · play money only

Where the class
trades its hunches.

Turn any lesson into a live market. Students put play credits on what they think is true, watch the odds move, and argue about why.

Teaching? Create a room in 10 seconds. No accounts, no student emails.

Play money only. Built for learning, not wagering.

How it works

  1. 01

    Ask a question

    Type it, or paste lecture notes into any AI chat and import the questions it writes.

  2. 02

    The class trades

    Every student starts with 1,000 credits. Buying pushes the odds, so the price is the class's best guess.

  3. 03

    Reveal and discuss

    Settle the answer, see who called it early, and use the swings to start the discussion.

Mode 1

Open Floor

Open the floor to your class. Run several markets through a lesson, let students trade at their own pace, and halt trading to talk it over and see who changes their mind.

Mode 2

Beat the Market

One question at a time on every screen. Bet against the crowd, win more when you're right, and finish on a podium.