> For the complete documentation index, see [llms.txt](https://docs.aqua.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aqua.network/aqua-and-ice/ice-boosts-how-to-maximize-lp-rewards.md).

# ICE boosts

Liquidity providers who hold ICE receive a **reward boost** on their AQUA rewards, up to x2.5. The boost is determined by two ratios: your share of the total ICE supply and your share of the pool. It is distinct from the up-to-10x [lock multiplier](/aqua-and-ice/ice-tokens-locking-aqua-and-getting-benefits.md), which determines how much ICE you receive for locking AQUA.

## How the boost is calculated

Aquarius uses the working-balance model known from Curve's veCRV boost:

```
boost = min(0.4 × deposit + 0.6 × pool_liquidity × your_ICE / total_ICE, deposit) / (0.4 × deposit)
```

You reach the full x2.5 when your share of the total ICE supply is at least as large as your share of the pool. A larger pool share with the same ICE lowers the boost toward 1x.

The inputs differ per reward system:

| Reward system              | `deposit`                                | `pool_liquidity`                                                                                             |
| -------------------------- | ---------------------------------------- | ------------------------------------------------------------------------------------------------------------ |
| AMM rewards                | Your LP tokens in the pool               | The pool's total LP tokens                                                                                   |
| Stellar DEX (SDEX) rewards | Your order-book liquidity for the market | Total order-book liquidity for the market, weighted by time on book, spread proximity, and offer fulfillment |

Worked example — suppose the total ICE supply is 50 billion:

* You hold 5 million ICE (0.01% of supply) and provide 0.01% of a pool's liquidity: full **x2.5** boost. A 10% base rewards APY becomes 25%.
* You double your pool share to 0.02% with the same ICE: the boost drops to **x1.75**.

The boost is recalculated hourly and shifts as other providers deposit and withdraw. Claiming rewards refreshes your boost.

## Where the boost appears in the app

The pool list shows each pool's minimum and maximum boost values:

<figure><img src="/files/aDWp450UwxdyKzFqMuzJ" alt="The pools list with minimum and maximum ICE boost values per pool"><figcaption></figcaption></figure>

The deposit flow shows how your boost changes before you confirm:

<figure><img src="/files/225zA0keLv2UokP1i1lI" alt="The deposit dialog showing the boost changing from 1.0 to 1.13"><figcaption></figcaption></figure>

Boosted rewards APY is outlined in purple, with the multiplier shown in blue chips:

<figure><img src="/files/PhZcgZCBOYCx0FfsXAXh" alt="A pool row with boosted rewards APY highlighted and the boost multiplier in a chip"><figcaption></figcaption></figure>