[Home](./index.md) > [bitburner](./bitburner.md) > [Stock](./bitburner.stock.md) > [getVolatility](./bitburner.stock.getvolatility.md) ## Stock.getVolatility() method Returns the volatility of the specified stock. **Signature:** ```typescript getVolatility(sym: string): number; ``` ## Parameters

Parameter	Type	Description
sym	string	Stock symbol.

**Returns:** number Volatility of the specified stock. ## Remarks RAM cost: 2.5 GB Volatility represents the maximum percentage by which a stock’s price can change every tick. The volatility is returned in the range 0-1. (e.g. if a stock has a volatility of 3%, then this function will return 0.03, NOT 3). In order to use this function, you must first purchase access to the Four Sigma (4S) Market Data TIX API.