Trading Game Scorekeeping Interview Questions
Trading game scorekeeping interview questions for tracking cash, inventory, mark-to-market value, realized PnL, and state updates.
Candidates who lose state in interactive trading rounds.
Track cash and inventory separately
Cash changes when trades happen. Inventory tracks what you still hold. Mixing them is a common source of score errors.
Mark remaining inventory
If the game values open positions, mark remaining inventory using the relevant fair value or final settlement rule.
Concrete example
If you buy 3 units at 10, cash decreases by 30 and inventory increases by 3. If the mark is 12, the inventory is worth 36 at that mark.
Summarize after each action
A quick state summary after each trade prevents compounding errors: cash, position, latest fair value, and current risk.
Know the scoring rule
Some games score final PnL, while others care about risk or quote quality. Scorekeeping follows the rule, not a generic formula.
Common mistakes
Candidates often update inventory but forget cash, or remember trade price but forget the current mark.
Practice the pattern
Use the LeetQuidity curriculum and calibration to turn this topic into a focused practice plan.