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# TickSize

## Definition

The minimum fluctuation value which is always a value of 1-tick for the corresponding master instrument.

## Property Value

A **double** value that represents the minimum fluctuation of an instrument.

## Syntax

`TickSize`

This property should NOT be accessed during **State.SetDefaults** from within the [OnStateChange()](/developer/desktop-sdk/references/common/onstatechange) method, all bars series would be guaranteed to have loaded in **State.DataLoaded**.

## Examples

```csharp
// Prints the ticksize to the output window
Print("The ticksize of this instrument is " + TickSize);

// Prints the value of the current bar low less one tick size  
double value = Low[0] - TickSize;  
Print(value);
```