# Pools

Tokan Exchange employs two distinct pricing curves: the Uniswap v2 and Curve Stable Swap pricing curves. Curve Stable Swap is better suited for trading price related assets like USDC-USDT, leading to increased trade volume and reduced slippage.

{% hint style="success" %}
All pools will support a wide range of fees (up to 1%) customizable on a pool by pool basis. This will allow for more dynamic and substantial voting rewards.
{% endhint %}

### Stable Pools

Stable pools are intended for assets that do not fluctuate in price too much. They are perfect for stable pairs, allowing traders to trade with low slippage and at the best rates even with large trade volumes. 

The default stable fee is 0.04%.

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**`x³y + y³x ≥ k`**
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### Variable pools

Variable pools are designed for assets with high price volatility. These pools use a generic AMM formula that is generally found in DEXs like Uniswap v2. 

The default stable fee is 0.18%.

{% hint style="info" %}
**`x * y ≥ k`**
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