## Documentation Center |

Black-Scholes sensitivity to underlying price volatility

```
Vega = blsvega(Price, Strike, Rate, Time, Volatility, Yield)
```

| Current price of the underlying asset. |

| Exercise price of the option. |

| Annualized, continuously compounded risk-free rate of return over the life of the option, expressed as a positive decimal number. |

| Time to expiration of the option, expressed in years. |

| Annualized asset price volatility (annualized standard deviation of the continuously compounded asset return), expressed as a positive decimal number. |

| (Optional) Annualized, continuously compounded
yield of the underlying asset over the life of the option, expressed
as a decimal number. (Default = 0.) For example, for options written
on stock indices, |

`Vega = blsvega(Price, Strike, Rate, Time, Volatility,
Yield)` returns `Vega`, the rate of change
of the option value with respect to the volatility of the underlying
asset. `blsvega` uses `normpdf`,
the normal probability density function in the Statistics Toolbox™.

Yield = Rate When
pricing currencies (Garman-Kohlhagen model), enter the input argument Yield = ForeignRate where |

`blsdelta` | `blsgamma` | `blslambda` | `blsprice` | `blsrho` | `blstheta`

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