Prep guide
Optiver style Order Book Practice
Twenty commodity puzzles and one 8 minute clock. Each card is one bundle. Buying a card buys every commodity shown on it, and selling a card sells every commodity shown on it. You do not pick a single commodity from inside the card. Finish with inventory exactly zero and a cash profit greater than zero. One correct puzzle scores 1 point. A miss, a skip, or a question you do not reach scores 0.
Independent practice. QuantKing is not affiliated with Optiver. This is not an official Optiver product.
QuantKing Pro required for practice.
How the practice works
What it is
A short tutorial and three untimed practice puzzles come first. The scored attempt then draws 20 questions from a checked bank of 60, moving from simpler trades to harder bundles. You can try again as many times as you want.
How scoring works
Stage buys and sells, then press Submit. The trade scores only when every commodity returns to zero and the cash profit is strictly positive. Profit size does not change the point. Reset clears the current puzzle only. Skip moves on and cannot be revisited.
How to prepare
Look for a quantity match first, then for a bundle you can rebuild from separate cards. Once you see one valid trade, submit it. Searching for a larger profit does not raise the score.