Market-Making Game Practice
Post a two-sided quote; a counterparty trades against you. The signature quant game.
Free account required to play; this simulator is a Premium feature.
"Make me a market on ..." is the signature trading-interview game, used by Jane Street, Akuna, Optiver, and others. Make a Market recreates it: you post a two-sided quote — a bid and an ask — on an uncertain quantity, and a counterparty trades against you.
Quote too wide and nobody trades; quote too tight and a better-informed counterparty picks you off. You learn to set a fair value, choose a defensible spread, and update as information arrives — the exact skills a market-making interview probes.
What it's modelled on
The ‘make me a market’ interview game
This recreates the signature market-making interview game — quote a two-sided market and a counterparty trades against you — reported across firms including Jane Street, Optiver, Akuna, IMC, and SIG. Quote too wide and nobody trades; too tight and you get picked off.
What it trains
- Quoting two-sided markets (bid/ask) on uncertain quantities
- Setting spreads and managing adverse selection
- Updating a price as new information arrives
How it's scored
Each round you quote a market and trade with a counterparty; your P&L reflects how well you priced fair value and spread. A Premium game with configurable difficulty.
Related guides
Frequently asked questions
- How do I prepare for a 'make a market' interview question?
- Practise estimating a fair value, quoting a bid and ask around it with a sensible spread, and updating when the counterparty trades — a trade against you is information. Make a Market lets you rehearse that loop against a live counterparty.
- Which firms use market-making games in interviews?
- Jane Street, Optiver, Akuna, IMC, and SIG are among the firms known for quoting and market-making games, where the point is sound pricing and risk judgement rather than a single right answer.