Bonding

What it is

Bonding is a way for a protocol to sell its own token directly to users, in exchange for another asset (a stablecoin, ETH, or even liquidity-pool tokens), at a discount to the current market price. Instead of receiving tokens immediately, the buyer ("bonder") gets them gradually over a vesting period, typically a few days. The protocol keeps whatever asset it received as treasury or protocol-owned liquidity.

How it works

1. The protocol sets up a bond contract that accepts a specific deposit asset (e.g., DAI, or an LP token like ETH-TOKEN).
2. It prices the bond using a formula tied to the token's current market price minus a discount, often adjusted dynamically based on how much demand the bond has seen ("bond control variable" — pricing rises as more bonds are bought, falls as they go unsold, targeting a debt ratio).
3. A user deposits the accepted asset into the bond contract and receives a claim on a fixed amount of the protocol's native token, discounted relative to spot price.
4. That claim vests linearly over a set term (commonly 3-7 days) rather than unlocking all at once, which discourages instant dump-and-flip behavior.
5. The deposited asset goes to the protocol's treasury. If it's an LP token, the protocol now directly owns liquidity that was previously provided by outside market makers.
6. The user periodically claims vested tokens as time passes, and can typically forfeit unvested amounts if they exit early (mechanism varies by implementation).

Why designers use it

• Converts external liquidity or capital into protocol-owned liquidity or treasury reserves, reducing reliance on rented liquidity from mercenary LPs.
• Lets a protocol raise funds continuously without a centralized sale event, and without giving away tokens for free the way liquidity mining does.
• The vesting period reduces immediate sell pressure compared to instant token distribution.
• Dynamic pricing (raising the discount when demand is low, lowering it when demand is high) lets the protocol tune its own cost of capital in real time.

Failure modes

• Death spiral: if the discount has to keep widening to attract buyers, new bond buyers dilute existing holders, pushing the token price down further, requiring an even bigger discount — a self-reinforcing collapse seen in several high-yield bonding protocols.
• Mercenary bonding: buyers repeatedly bond purely to claim the discount and immediately sell once vested, creating steady sell pressure that offsets any liquidity gained.
• Overpriced treasury assets: if the treasury's non-native holdings are themselves volatile or illiquid, "protocol-owned liquidity" can evaporate in a downturn just when it's needed most.
• APY dependence: if the protocol's core value proposition is a yield funded by continuous token issuance, bonding just becomes another channel of dilution feeding an unsustainable APY, rather than fixing it.
• Complexity for users: constantly shifting bond prices and vesting schedules are hard for casual participants to evaluate, leading to poor-value purchases during hype periods.

What to check before using it

• Is the discount rate tied to a sustainable treasury growth model, or does it only work while the token price is rising?
• What backs the treasury, and how liquid/stable are those backing assets under stress?
• How is the vesting/forfeiture logic implemented — can early exits be gamed?
• Does bonding meaningfully reduce reliance on mercenary liquidity, or does it just relabel the same dilution as a "discount"?
• Is there a cap on how much can be bonded per period, to prevent one large buyer from cornering supply at a steep discount?