> For the complete documentation index, see [llms.txt](https://docs.yummyprofit.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yummyprofit.com/indicator-and-strategy/trend-following/fibonacci-level.md).
# Fibonacci Level
**Fibonacci retracement** levels are horizontal lines that indicate where support and resistance are likely to occur
## What Are Fibonacci Retracement Levels?
Fibonacci retracements is a popular instrument used by technical analysts to determine support and resistance areas. In technical analysis, this tool is created by taking two extreme points (usually a peak and a minimum) on the chart and dividing the vertical distance by the key Fibonacci coefficients equal to 23.6%, 38.2%, 50%, 61.8%, and 100%.
Once these levels are defined, horizontal lines are then drawn and used to determine possible support and resistance levels.
## Open the Fibonacci indicator on tradingview\.com
Yummy Profit builds this alert based on the **"Auto Fibonacci Retracement"** (Auto Fib) indicator.
To visualize how the fibonacci retracement indicator works. First, you open [tradingview.com](https://tradingview.com) website, then open Indicators on your chart and find Auto Fib Retracement in the *Built-ins* tab.
If you are a regular user of the fibonacci retracement indicator then don't miss this indicator on yummy profit app.
So how to install and configure the fibonacci indicator?
## The indicator config
The configuration of fibonacci indicator, we are all built based on tradingview, including parameters:
* **Depth:** Depth affects the minimum number of bars that will be taken into account when building.
* **Reverse:** Reverse is the reverse order of lines.
## Alert when ...
Alert when the price crosses above/below the levels of the fibonacci line: 0; 0.236; 0.328; 0.5; 0.618; 0.786; 1; 1.618; 2.618; 3.618; 4.236.
## The result
