The protocol goal is to minimize any discount. SWEEP buyers should be able to see when they will get their money back through redemption of investments. In the first version of SWEEP, all of the investments should be redeemable within 7-10 days. This will support demand for SWEEP. If an arbitrageur can buy SWEEP for 0.9965*target price, and it repegs to the target price in one week, the arb will make a 20% annualized return.