Market Making Games
Practice trading under uncertainty
Market Making: Dice
Dice valued 1-6. Estimate the sum of hidden dice and trade against random quotes.
Market Making: Cards
Cards valued 2-14 (Ace = 14). Calculate expected value from face-up cards and exploit mispriced quotes.
You Make the Market
You are the market maker. Quote a bid-ask spread and defend it against an informed trader who sees all the dice.
Fermi Estimation
Estimate answers to Fermi questions with confidence intervals. Score based on calibration and accuracy.
Free: 5 questions per session