Seigniorage shares are a component of certain algorithmic stablecoin designs, representing a claim on future seigniorage, which is the profit generated from issuing new currency. These shares are typically issued when the stablecoin’s price falls below its peg, acting as a recapitalization mechanism. Holders of seigniorage shares essentially absorb the stablecoin’s excess supply in exchange for a future claim on protocol revenue. This aims to restore the peg.
Mechanism
When the stablecoin trades below its target peg, the protocol may issue seigniorage shares, often called “bonds” or “coupons,” which can be purchased with the discounted stablecoin. This burning of stablecoins reduces supply, theoretically pushing its price back towards the peg. If the stablecoin later trades above its peg, new stablecoins are minted, and a portion of this seigniorage is used to redeem the outstanding shares at a premium. The mechanism relies on market arbitrage.
Risk
The primary risk associated with seigniorage shares lies in their dependency on future demand for the stablecoin and the protocol’s ability to consistently generate seigniorage. If the stablecoin fails to regain its peg or experiences prolonged periods below peg, seigniorage shares may never be redeemed, leading to permanent losses for holders. This creates a death spiral risk, where falling confidence exacerbates the de-pegging and further undermines the shares’ value.
