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[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [TIX](./bitburner.tix.md) &gt; [getPurchaseCost](./bitburner.tix.getpurchasecost.md)

## TIX.getPurchaseCost() method

Calculates cost of buying stocks.

**Signature:**

```typescript
getPurchaseCost(sym: string, shares: number, positionType: PositionType): number;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  sym | string | Stock symbol. |
|  shares | number | Number of shares to purchase. |
|  positionType | [PositionType](./bitburner.positiontype.md) | Specifies whether the order is a Long ("L") or Short ("S") position. |

**Returns:**

number

Cost to buy a given number of shares of a stock.

## Remarks

RAM cost: 2 GB Calculates and returns how much it would cost to buy a given number of shares of a stock. This takes into account spread, large transactions influencing the price of the stock and commission fees.

