> For the complete documentation index, see [llms.txt](https://docs.h4.world/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.h4.world/prediction.md).

# Prediction

Predictions are fixed-expiry markets based on binary or multi-outcome market structures.

Some prediction markets are recurring, such as BTC price levels or price buckets, while others are one-time event markets.

All prediction markets use USDH as the margin asset.

If your USDH balance is insufficient, selecting the Available section on the trading page allows you to swap inline from Cash to USDH.

***

### Market Structure

Each prediction market contains a set of possible outcomes.

As the market evolves, each outcome’s probability changes over time based on trading activity and market pricing.

All outcomes settle at expiry according to the final result of the event or market condition.

***

### Charts

H4 exposes two different chart abstractions for prediction markets.

#### Underlying Chart

<figure><img src="/files/Sj3xWGbhneD4vgGl7OIa" alt="" width="188"><figcaption></figcaption></figure>

For price-based prediction markets, H4 displays a traditional price chart divided into outcome buckets.

Selecting a bucket opens a position for the corresponding outcome.

This allows users to trade prediction outcomes directly from the underlying market chart.

#### Outcomes Chart

<figure><img src="/files/cS1LFwy1fviG54TMFCMk" alt="" width="188"><figcaption></figcaption></figure>

The Outcomes Chart is the generic prediction market view.

It displays the probability of each outcome over time.

All outcomes are expressed as probabilities rather than prices.

***

### Controls Section

<figure><img src="/files/noykw6F9QjJfy9gjgqoT" alt="" width="188"><figcaption></figcaption></figure>

The controls section allows users to:

* Select order size
* Open positions on outcomes
* Review execution before submitting orders

***

### Review Overlay

Before placing an order, users should verify that liquidity is sufficient and that price impact remains reasonable.

<div><figure><img src="/files/2yCMIrf9uVAfoSMTgBZ0" alt="" width="188"><figcaption></figcaption></figure> <figure><img src="/files/NA4miz8xXNAKzCT7jctH" alt="" width="188"><figcaption></figcaption></figure></div>

Low liquidity or high price impact can result in immediate losses at execution.

The market data section can also be used to verify:

* Volume
* Open Interest (OI)
* General market activity

Prediction markets with higher liquidity generally provide better execution and tighter pricing.


---

# 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 dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.h4.world/prediction.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.