DAMM v2 Market Cap Scheduler

DAMM v2 market-cap scheduler fees reduce trading fees as the pool price grows. Unlike time scheduler fees, the fee does not drop just because time passes. It drops when the current square-root price moves through configured steps above the initial square-root price. This is useful for launches where fee reductions should follow market growth instead of a countdown.

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How It Works

DAMM v2 compares the current pool square-root price against the initial square-root price. Each time the current square-root price increases by a configured sqrt_price_step_bps, the scheduler advances and lowers the fee. Key settings include: DAMM v2 supports two market cap scheduler curves: linear and exponential.

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Linear Market Cap Scheduler

The linear market-cap scheduler decreases the fee numerator by the same fixed amount each time the pool square-root price moves through a configured step. $$\text{Fee Numerator} = \text{Cliff Fee Numerator} - (\text{Price Steps Passed} \times \text{Reduction Factor})$$ In product terms, the fee moves down in predictable price milestones. Each upward price step unlocks the next fee reduction. Use linear market cap scheduling when you want each price milestone to reduce fees by the same amount.

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Exponential Market Cap Scheduler

The exponential market-cap scheduler reduces the fee by applying the reduction factor as price milestones are reached. $$\text{Fee Numerator} = \text{Cliff Fee Numerator} \times \left(1 - \frac{\text{Reduction Factor}}{10{,}000}\right)^{\text{Price Steps Passed}}$$ In product terms, fees can drop faster in early price-growth stages, then slow as they approach the final fee. Use exponential market cap scheduling when you want the launch curve to feel smoother than a fixed step-down schedule.

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Why Use Market Cap Scheduler Fees

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Expiration and Validation

If the scheduler expires, or if a pre-activation alpha-vault buy is being processed, the program uses the final period. If the current square-root price is at or below the initial square-root price before expiration, the scheduler uses period 0. The program requires all of these values to be non-zero:

• reduction_factor
• sqrt_price_step_bps
• scheduler_expiration_duration
• number_of_period

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Linear vs Exponential

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When To Choose It

Use a market cap scheduler when fees should stay elevated until the pool shows upward price movement. This can be useful for launch markets where the team wants protection to follow market behavior. Use Time Scheduler Fees instead when fees should decrease according to elapsed time.