> For the complete documentation index, see [llms.txt](https://help.stockcharts.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.stockcharts.com/data-and-ticker-symbols/ticker-symbols/using-the-index-catalog.md).

# Using the Index Catalog

Have you wondered what a particular index is or how it is calculated? Good news! You can use our Index Catalog to learn that information.

## Accessing the Index Catalog <a href="#accessing_the_index_catalog" id="accessing_the_index_catalog"></a>

The Index Catalog can be accessed from the StockCharts' [Symbol Catalog](https://stockcharts.com/freecharts/catalog/). On the Symbol Catalog page, scroll down and click the “Index Catalog” link at the bottom of the page. A direct link to the Index Catalog is [here](https://stockcharts.knack.com/symbolcatalog).

## Using the Index Catalog <a href="#using_the_index_catalog" id="using_the_index_catalog"></a>

To start using the Index Catalog, scroll through the different pages or use the **Search Indicators and Indexes** tools to locate the symbol you're most interested in learning about.

<figure><img src="https://2414490151-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FELJo6JImRKx7nLaFjAPl%2Fuploads%2FbNG4XxiNd6XTQCFAKXUX%2Faccess-and-use-index-1.png?alt=media&amp;token=0ff44f43-5195-447d-bd85-dc40da8ab74b" alt="How to search for indicators and indexes in StockCharts.com"><figcaption><p>Searching for indicators and indexes using the Index Catalog.</p></figcaption></figure>

Once you locate the symbol you want, select the **Click for Details** link to learn more about that symbol. Below is an example of the information provided.

<figure><img src="https://2414490151-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FELJo6JImRKx7nLaFjAPl%2Fuploads%2FM2X7ulVdJ731eROMIKgX%2Faccess-and-use-index-2.png?alt=media&amp;token=d87a28d9-83ce-4f2c-bc5b-a0b504966841" alt="Find additional details about any symbol in StockCharts.com"><figcaption><p>You can find more details about any symbol.</p></figcaption></figure>

If you have further questions about the Index Catalog or can't locate a symbol, please contact our [Support Team](http://stockcharts.com/support/techsupport.html).


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://help.stockcharts.com/data-and-ticker-symbols/ticker-symbols/using-the-index-catalog.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
