> ## Documentation Index
> Fetch the complete documentation index at: https://docs.codex.io/llms.txt
> Use this file to discover all available pages before exploring further.

# WindowedPredictionEventChangeStats

> Change percentages for a prediction event over a time window.

<div data-generated>
  ## GraphQL

  ```
  type WindowedPredictionEventChangeStats {
    volumeChange: Float!
    tradesChange: Float!
    buyVolumeChange: Float
    sellVolumeChange: Float
    uniqueTradersChange: Float
    liquidityChange: Float
    openInterestChange: Float
  }
  ```

  ### Used By

  **Returned by**

  * [detailedPredictionEventStats](/api-reference/queries/detailedpredictioneventstats.md): Returns windowed and all-time stats for a prediction event.
  * [onDetailedPredictionEventStatsUpdated](/api-reference/subscriptions/ondetailedpredictioneventstatsupdated.md): Streams updated detailed stats for a specific prediction event.
</div>