---
id: "P:cAlgo.API.ChartFibonacciExpansion.Y3"
kind: "property"
type: "T:cAlgo.API.ChartFibonacciExpansion"
url: "https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/Fibonacci/ChartFibonacciExpansion/Y3/"
---

> Documentation index for agents: https://help.ctrader.com/ctrader-algo/llms.txt · machine index: https://help.ctrader.com/ctrader-algo/api.json

# ChartFibonacciExpansion.Y3

Member of [ChartFibonacciExpansion](https://help.ctrader.com/ctrader-algo/references/Chart/Drawings/Fibonacci/ChartFibonacciExpansion/index.md).

## Y3

Gets or sets the value 3 on the Y-axis.

Environments: Desktop supported · CLI works differently · Cloud works differently.

- CLI: Created and kept with all its properties, but never drawn: the CLI displays no chart.
- Cloud: Created and kept with all its properties, but never drawn: the cloud displays no chart.

C#:

```csharp
double Y3 {get; set;}
```

Python:

```python
chartFibonacciExpansion.Y3: float
```

### Returns

`double` — 

### Examples

C#:

```csharp
var expansion = Chart.DrawFibonacciExpansion("expansion", Bars.OpenTimes.Last(30), Bars.LowPrices.Last(30), Bars.OpenTimes.Last(20), Bars.HighPrices.Last(20), Bars.OpenTimes.Last(10), Bars.LowPrices.Last(10), Color.Red);
expansion.Y3 = Bars.LowPrices.Last(10) - 5 * Symbol.PipSize;
Print("Expansion Y3: {0}", expansion.Y3);
```

Python:

```python
expansion = api.Chart.DrawFibonacciExpansion("expansion", api.Bars.OpenTimes.Last(30), api.Bars.LowPrices.Last(30), api.Bars.OpenTimes.Last(20), api.Bars.HighPrices.Last(20), api.Bars.OpenTimes.Last(10), api.Bars.LowPrices.Last(10), Color.Red)
expansion.Y3 = api.Bars.LowPrices.Last(10) - 5 * api.Symbol.PipSize
api.Print(f"Expansion Y3: {expansion.Y3}")
```