Wombat Exchange
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# Invariant Curve

With the above definition in mind, Wombat’s invariant curve is defined as follows:
$\sum{L_x (r_x - \frac{A}{r_x})} = D$
$rₓ$
= coverage ratio of token x
$A$
= amplification factor
During a swap, the right-hand side of the invariant remains constant.
The invariant has some favorable properties, including:
• The number of assets in a pool is unlimited. One can add and remove assets on the fly.
• The weight of assets is flexible. A protocol can emit more rewards to a token in the pool with higher buy pressure to selectively deepen liquidity.
• Users can provide single-sided liquidity.
For the main pool, we use A = 0.002, and it would be revised on a needed basis.