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Market Makers

Liquidity Rewards Program

Earn daily USD rewards by providing high-quality resting liquidity on Gemini Predictions

The Liquidity Rewards Program pays makers daily USD rewards for providing resting liquidity on Gemini Predictions. Unlike maker rebates that require fills, liquidity rewards score resting orders regardless of whether they execute.

View active reward pools on the Liquidity Rewards page.

Or via API

  • Get Config
  • List Events
  • Get Daily Summary
  • Get Lifetime Summary

How It Works

Each eligible event features a daily USD reward pool. Gemini distributes this pool proportionally to makers based on order book presence throughout the day.

Scoring favors tight spreads around the midpoint, larger order sizes (up to a cap), two-sided quoting, and high uptime. Quotes outside allowable spreads or below minimum sizes receive zero score.

How Payouts Are Calculated

Gemini calculates scores from per-minute order book snapshots and distributes the pool proportionally:

Snapshot score

Computed every minute for each maker on each contract:

Code
Snapshot score = Spread weight × Size × Two-sided multiplier
VariableDescription
Spread weightQuadratic curve based on quote distance from the midpoint. Tighter quotes score disproportionately higher. When the book is one-sided, the best price on your side is used as the reference instead.
SizeOrder quantity, capped per the size cap.
Two-sided multiplierApplied at any snapshot where the maker has a qualifying bid and ask on the same contract.

Daily payout

At the end of each day, snapshot scores are summed and the pool is split:

Code
Daily payout = Pool × (Daily score / Total qualifying score)
VariableDescription
PoolThe reward pool's daily USD budget.
Daily scoreSum of the maker's snapshot scores across all contracts in the event for the day.
Total qualifying scoreSum of daily scores across all qualifying makers.

Reward Pools

Reward pools may be assigned at either the event or contract level:

  • Event-level pools apply to a single event (for example, a marquee sports matchup, an election night, or a one-off macro event).
  • Contract-level pools apply to a recurring contract type (for example, BTC 15-minute hourlies or ETH end-of-day) and cover all instances of that contract type during the period.

Daily pool sizes typically range from $10 to $1,000 per day. Pool size and duration vary and are subject to change.

Active pools are published daily on the Liquidity Rewards page and available via the API.

Examples

Three makers compete on a Bitcoin event with an event-level pool of $500/day. The current bid-ask is $0.49 to $0.52, so the midpoint is $0.505.

Example 1: A single snapshot

At one minute during the day, the orderbook looks like this:

MakerBidAskDistance from $0.505 midTwo-sided?Snapshot share of scores
Maker A$0.48 x 50$0.52 x 501.5–2.5¢Yes (1.5x bonus)~74%
Maker B$0.40 x 200$0.60 x 2009.5–10.5¢Yes (1.5x bonus)~5%
Maker C$0.49 x 30(none)1.5¢No~21%

Maker A dominates this snapshot even though Maker B has 4x the total size on the book. A quote 1.5¢ from the midpoint scores roughly 50x a quote 10¢ away, so tight quoting compounds. Maker B's larger size barely makes up for the wider spread.

Example 2: At end of day

After accumulating snapshot scores across the full day, the pool is split:

MakerUptime during dayQualifies?Share of poolDaily payout
Maker A96%Yes77%$386.50
Maker B35%No, below uptime threshold0%$0.00
Maker C83%Yes23%$113.50

Maker B's tight-snapshot scores are wasted. Stepping off the book too often disqualifies Maker B for the day. Maker A and Maker C split the full $500 pool.

Qualification Rules

The following parameters apply program-wide to all events with active reward pools. Values may be revised over time as the program evolves. Active values are always reflected on this page and via the API.

RuleValue
Maximum spread10¢ from midpoint
Minimum size10 contracts
Size cap250 contracts
Two-sided multiplier1.5x
Uptime threshold50% of eligible snapshots

Reward Precision

The minimum daily payout is $1.00. Daily totals below this threshold are not distributed. Rewards are rounded down to the nearest cent.

Eligibility

For a resting order to count toward your score:

  • The order must be on a contract that is actively tradeable at the snapshot.
  • The contract must be associated with an event or contract type that has an active reward pool.
  • The order must satisfy the qualification rules above.

Contracts in post-only mode are excluded from scoring. House and test accounts are excluded from rewards.

The Maker Rebate Program operates independently. Orders may earn from both programs simultaneously.

Payment

Rewards are paid daily at 5:30pm ET in USD.

Maker Rebate ProgramMarket Maker Program
On this page
  • How It Works
  • How Payouts Are Calculated
    • Snapshot score
    • Daily payout
  • Reward Pools
  • Examples
    • Example 1: A single snapshot
    • Example 2: At end of day
  • Qualification Rules
  • Reward Precision
  • Eligibility
  • Payment