> ## 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

# TickerOiStatsDay

> Open interest and historical option activity statistics for one trading date.

Message
fields**10**
used by[TickerOiStats](https://api.unusualwhales.com/docs/kafka/types/TickerOiStats.md)

**Proto definition**

```protobuf schema.proto theme={null}
message TickerOiStatsDay {
  Date date = 1;
  optional int64 call_open_interest = 2;
  optional int64 put_open_interest = 3;
  Decimal avg_3_day_call_volume = 4;
  Decimal avg_3_day_put_volume = 5;
  Decimal avg_30_day_call_oi = 6;
  Decimal avg_30_day_put_oi = 7;
  optional int64 new_chains = 8;
  Decimal avg_7_day_call_volume = 9;
  Decimal avg_7_day_put_volume = 10;
}
```

## Fields

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

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

Trading date represented by this snapshot.

call\_open\_interest
int64
optional
2

Total call option open interest.

put\_open\_interest
int64
optional
3

Total put option open interest.

avg\_3\_day\_call\_volume
[Decimal](https://api.unusualwhales.com/docs/kafka/types/Decimal.md)
4

Average call option volume over the previous three trading days.

avg\_3\_day\_put\_volume
[Decimal](https://api.unusualwhales.com/docs/kafka/types/Decimal.md)
5

Average put option volume over the previous three trading days.

avg\_30\_day\_call\_oi
[Decimal](https://api.unusualwhales.com/docs/kafka/types/Decimal.md)
6

Average call option open interest over the previous 30 trading days.

avg\_30\_day\_put\_oi
[Decimal](https://api.unusualwhales.com/docs/kafka/types/Decimal.md)
7

Average put option open interest over the previous 30 trading days.

new\_chains
int64
optional
8

Number of option chains that did not exist on the previous trading date.

avg\_7\_day\_call\_volume
[Decimal](https://api.unusualwhales.com/docs/kafka/types/Decimal.md)
9

Average call option volume over the previous seven trading days.

avg\_7\_day\_put\_volume
[Decimal](https://api.unusualwhales.com/docs/kafka/types/Decimal.md)
10

Average put option volume over the previous seven trading days.