# CumulativeVariance

The **CumulativeVariance** function calculates the variance of a column up to and including the current row value.

### Syntax

```
CumulativeVariance([field])
```

Function argument:

|           |                                                               |
| --------- | ------------------------------------------------------------- |
| **field** | The column to reference when calculating cumulative variance. |

> ### 📘Cumulative functions depend on the order of the given column. If you change the sorting you will change the result.

### Example

```
CumulativeVariance([Close Price])
```

A table contains the daily close price of a stock in 2016. Variance can be used to show the volatility of a stock, where a higher variance indicates higher risk.  We can use the **CumulativeVariance** function to identify the change in variance over time.

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