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

> ## Agent Instructions
> API requests use the base URL https://api.unusualwhales.com and require a bearer token in the `Authorization` header (`Authorization: Bearer <API_KEY>`). Create and manage API tokens at https://unusualwhales.com/dashboard/api.
> For live market data inside an AI tool, use the Unusual Whales MCP server at https://unusualwhales.com/public-api/mcp.
> Instructions for agents using Unusual Whales tools: https://unusualwhales.com/skill.md

# TickerOiStats

> Current and previous open interest statistics for a ticker after OI processing completes.

Message
fields**4**
topic[ticker-oi-stats](https://api.unusualwhales.com/docs/kafka/topics/ticker-oi-stats.md)

**Proto definition**

```protobuf schema.proto theme={null}
message TickerOiStats {
  Ticker ticker = 1;
  TickerOiStatsDay current = 2;
  TickerOiStatsDay previous = 3;
  int64 tape_time = 4;
}
```

## Fields

The number on the right of each row is the protobuf field number.

ticker
[Ticker](https://api.unusualwhales.com/docs/kafka/types/Ticker.md)
1

Ticker represented by this snapshot and the Kafka message key.

current
[TickerOiStatsDay](https://api.unusualwhales.com/docs/kafka/types/TickerOiStatsDay.md)
2

Statistics for the completed OI trading date.

previous
[TickerOiStatsDay](https://api.unusualwhales.com/docs/kafka/types/TickerOiStatsDay.md)
3

Statistics for the previous trading date when available.

tape\_time
int64
4

Unix timestamp in milliseconds when this snapshot was published.