DCHF is a fully redeemable stablecoin. At any time, the protocol allows holders to redeem their DCHF for the underlying ETH or WBTC collateral at face value. It makes sense to redeem your DCHFs when they are below a price of 1 Swiss Franc, since you then get exactly 1 Swiss Franc worth of ETH or WBTC and made a profit. Learn more, Read our Documentation