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This program rewards traders for placing resting limit orders. The closer your orders are to the best price and the larger they are, the more you earn. Every second, the Exchange scores each trader’s resting orders based on price and size, and rewards are split proportionally. Parameters for each market are published here.
TermDefinition
Time PeriodA window during the event lifecycle (e.g., pre-event, event day, mid-event) with its own reward pool
Discount FactorHow much orders further from the best price are penalized — closer orders score higher
Target SizeThe maximum number of contracts per side that count toward scoring
Time Period RewardThe total reward pool for each time period

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Example

You maintain 500 contracts at the best bid for half the snapshots in a reward period. If the reward pool is $100 and your score is 20% of the total, you earn $20.