Trading fee
Every coin trades in a Uniswap v4 pool on Arc. The pool charges no LP fee. A fixed trading fee of 1% applies to every buy and every sell.
- The trading fee is paid by the trader.
- The trading fee is collected in the coin's quote asset: USDC for a USDC-quoted coin, or the stock token for a stock-quoted coin.
- The fee rate and its allocation are fixed in the contracts and cannot be changed for a coin after launch.
Fee allocation
| Recipient | Share | Paid in |
|---|---|---|
| Holders of the coin | 57.5% | Payout stock |
| Creator (holder of the Creator Rights NFT) | 10% | Quote asset |
| Desk cards | 10% | Payout stock |
| SOLON V2 staking | 5% | Payout stock |
| Buyback & burn | 10% | SOLON, sent to the burn contract |
| Protocol vault | 7.5% | USDC |
For a stock-quoted coin, the buyback & burn share and the protocol vault share are received in the stock token and are first sold for USDC. Each such sale is subject to a price floor: the sale price must not be more than 1% below the oracle price.
SOLON pool fee
The SOLON/USDC pool itself charges a 1% LP fee. Since 2026-10-07 that fee runs its own split, settled automatically by the platform each round:
| Recipient | Share | Paid in |
|---|---|---|
| V2 stakers (stock escrow) | 57.5% | USDC into the stakers' escrow, paid out as stock |
| Original SOLON rewards pool | 5% | SOLON, streamed over 7 days |
| Buyback & burn | 20% | SOLON, sent to the dead address |
| Protocol | 17.5% | USDC |
The creator-side fee of the SOLON pool folds into the same table: its USDC joins the split above, and its SOLON is divided across the SOLON legs in the same proportions.
Example
A buy of 100 USDC in a USDC-quoted coin incurs a trading fee of 1 USDC, allocated as follows:
| Recipient | Amount |
|---|---|
| Holders | 0.575 USDC |
| Creator | 0.10 USDC |
| Desk cards | 0.10 USDC |
| SOLON V2 staking | 0.05 USDC |
| Buyback & burn | 0.10 USDC |
| Protocol vault | 0.075 USDC |
The holder, Desk card and staking shares are subsequently used to purchase the payout stock. See Payouts.
Use of each share
- Holders: see Payouts.
- Creator: see Launching a coin.
- Desk cards, staking, buyback & burn: see Desk cards, staking and SOLON.
- Protocol vault: surplus funds can be transferred only to the treasury, and only after a 48-hour timelock. Committed funds and an operating buffer of at least 100 USDC remain in the vault.