On the surface, it may be similar to the model of CFD contract or black foreign exchange platform, but in fact, due to the good liquidity of tokens, it is equivalent to issuing additional "oil bills", which can be directly traded or even circulated on DEX. In fact, there is almost no situation of platform being run. In extreme cases, sOil may discount in DEX, so as to obtain more sUSD, but in theory, there is little possibility of a run leading to a substantial discount in sUSD. Big discounts are not inherently common, and program arbitrage continues to level the spread, with middle-line staking on the platform.