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Market Design

Market Mechanism

In V2 of Perennial, markets natively net long positions against short positions, and only utilize maker liquidity to cover the resulting imbalance. This yields markets that are up to an order of magnitude more efficient in terms of open interest to required maker liquidity.
V2 now nets longs & shorts instead of V1's design which had segregated markets for long & short payoffs.

Utilization of Maker Liquidity

The maker side of the market is only required to cover the net exposure of the taker side: longs & shorts. Long and short taker positions are first netted out against each other with the resulting exposure directed to the maker pool pro-rata.
With 10u long & 6u short, the maker pool (consisting of 5u total) is taking on 4u short exposure pro-rata or is 0.80x short.