# EarnShares.feeShares

Computes the dilution-correct vault shares minted for an asset-denominated fee.

Mirrors `FeeMath`: `feeShares = floor(fee * shareSupply / (activeAssets - fee))`, zero when the fee is zero or not smaller than the active assets. Minting this amount to the fee ledger prices the fee at post-mint value per share.

## Imports

:::code-group
```ts [Named]
import { EarnShares } from 'ox/tempo'
```

```ts [Entrypoint]
import * as EarnShares from 'ox/tempo/EarnShares'
```
:::

## Examples

```ts twoslash
import { EarnShares } from 'ox/tempo'

const shares = EarnShares.feeShares({
  activeAssets: 1_100n,
  shareSupply: 1_000n,
  totalFeeAssets: 100n
})
// @log: 100n
```

## Definition

```ts
function feeShares(
  options: feeShares.Options,
): bigint
```

**Source:** [src/tempo/EarnShares.ts](https://github.com/wevm/ox/blob/main/src/tempo/EarnShares.ts#L236)

## Parameters

### options

* **Type:** `feeShares.Options`

Fee accrual inputs.

#### options.activeAssets

* **Type:** `bigint`

Assets backing the active (non-queued) supply, base units.

#### options.shareSupply

* **Type:** `bigint`

Active vault share supply, base units.

#### options.totalFeeAssets

* **Type:** `bigint`

Total fee liability in asset units.

## Return Type

Vault shares to mint for the fee, rounded down.

`bigint`