Fee schedule
Robinback fees are paid in the underlying stock token — not in your meme ticker — on every curve trade and every post-grad V4 swap.
Protocol
0.5%
50 bps → protocol recipient
Creator
0.5%
50 bps → launcher wallet
Combined
1%
Taken before holder tax
Holder tax
0–10%
Optional, locked at launch
Launch fee
0.001 ETH
One-time create fee
V4 LP fee
0%
Hook takes protocol fees
/// @notice Default protocol fee: 0.5%.
uint256 public constant DEFAULT_PROTOCOL_FEE_BPS = 50;
/// @notice Default creator fee: 0.5%.
uint256 public constant DEFAULT_CREATOR_FEE_BPS = 50;
/// @notice Default creation fee charged on `launch`: 0.001 ETH.
uint256 public constant DEFAULT_LAUNCH_FEE_WEI = 0.001 ether;
/// @notice Hard cap per fee leg so neither can be set above 10%.
uint256 public constant MAX_FEE_BPS = 1_000;Mutable vs immutable
How the take stacks
Fees are sequential. On a trade of stock notional N:
- Protocol + creator remove 1% → remaining
0.99N. - Holder tax
hbps removes0.99N × h / 10_000. - Whatever is left enters the curve or V4 pool.
Effective total take of notional:
// afterPc = 0.99 (after 1% protocol+creator)
effectivePct = (1 - afterPc * (1 - holderTaxBps / 10_000)) * 100
// Examples:
// tax off → 1.00%
// 5% tax → ~5.95%
// 10% tax → ~10.90%Creator fees
Creator fees stream to the launcher’s wallet in underlying stock on every trade — curve and graduated V4. There is nothing to claim for the base 0.5% creator fee; check your stock balance and the Creator overview on the dashboard.
Holder tax rewards
When a launch enables holder tax, skimmed stock accrues to a reward pool. Holders claim anytime from the token page or dashboard via claimHolderRewards().
* Optional immutable holder tax (holderTaxBps, 0 = off): skimmed on
* curve buys/sells and post-grad V4 swaps (via StockBackHook) into
* a claimable reward pool.
* Holders call claimHolderRewards(). Curve and PoolManager inventory
* do not earn.
* Curve accrual excludes the trader for that tx; V4 accrual has no
* trader exclude.Dashboard