The Gaming Room
Trading Games
Interview skills you can't learn from flashcards. These are live simulations of the exercises trading firms actually run, play them until the instincts are automatic. The Gaming Room is part of the Private membership.
House die, roll it, it's yours
The Optiver-style quoting game
PRIVATEMarket Maker
Quote a two-way market on an uncertain quantity. Four noise traders will pay your spread, but two sharps know the true value and punish any quote that crosses it. Too wide and you never trade; too tight and the informed flow eats you. Learn spread-setting by losing fake money instead of real interviews.
The final-round classic, playable
PRIVATECard Market
Make a market on the sum of three hidden cards, re-quote as each one flips, and carry your fills to settlement. Conditional fair value, collapsing variance, inventory you can't wish away, the exact game run across the desk in live interviews.
The 80-in-8 arithmetic gauntlet
PRIVATEMental Math Sprint
Timed arithmetic exactly in the style of trading-firm numerical screens: +1 for a correct answer, −2 for a wrong one. The difficulty ramps from two-digit sums to fraction-decimal conversions. Your percentile is tracked sprint over sprint.