> For the complete documentation index, see [llms.txt](https://docs.turbine.exchange/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.turbine.exchange/features/batching-solver.md).

# Batching Solver

Turbine has a built-in solver that settles orders in batches.

### Batches over Turbine + Ethereum Liquidity

Every batch includes:

* [**Turbine Orders**](/trading/readme/auto-mode.md): Turbine orders that track the market.
* [**Turbine Pools**](/features/market-tracking-lp.md): Turbine pools that track the market.
* **On-chain liquidity:** All AMM pools and PMM quotes from Tycho.

### Limit Order vs. Spread Order Batching

**Limit Order Batching**: In limit order markets, you only match if an opposite trade arrives before the market moves, which rarely happens. So you usually get stuck or overpay; only when the market is less volatile do you settle at market rate.

<figure><img src="/files/I6DA3WxtQqNDIr6LevEu" alt=""><figcaption><p>Limit Order Batching -> Few P2P Trades</p></figcaption></figure>

**Spread Order Batching:** In Turbine, orders and pools follow the market price. Orders match peer-to-peer, *no matter where the market moves***.** The longer an order stays in Turbine, the higher the chance of settling peer-to-peer. As a result, CoWs are the default, and orders rarely get stuck. Worst case, you pay market rate (AMM router price).

<figure><img src="/files/rPaFzjhGl0BESB26pSb8" alt=""><figcaption><p>Spread Order Batching -> Many P2P Trades</p></figcaption></figure>

<table><thead><tr><th width="219.078125"></th><th width="287.9921875">Limit Order Markets</th><th>Spread Order Market</th></tr></thead><tbody><tr><td>⛔️ <strong>Stuck Orders</strong></td><td>A lot 😔</td><td>Rarely ☺️</td></tr><tr><td>🤕 <strong>Paid Too Much</strong></td><td>A lot 😔</td><td>Rarely ☺️</td></tr><tr><td>🤝 <strong>P2P Trade</strong></td><td>Rarely 😔</td><td><strong>A lot</strong> ☺️</td></tr><tr><td>✅ <strong>Market Rate</strong></td><td>Rarely 😔</td><td>Sometimes</td></tr></tbody></table>

### Fair Settlement

In Turbine, all orders for the same pair in the same batch clear at the same **uniform clearing price**.

### Default = Market Rate

Because Turbine includes all on-chain liquidity (via [Fynd](https://docs.fynd.xyz/get-started/quickstart)), the worst price you settle at is what you'd get from optimally routing across all on-chain liquidity.

Peer-to-peer trades and Turbine LP pools give you the surplus above the AMM routes.


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