> ## 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

# OptionTradeSide

> Which side of the market a trade hit.

Enum
values**4**
used by[MultiLegSpread](/docs/kafka/types/MultiLegSpread.md)
used by[MultiLegSpreadLeg](/docs/kafka/types/MultiLegSpreadLeg.md)

**Proto definition**

```protobuf schema.proto theme={null}
enum OptionTradeSide {
  OPTION_TRADE_SIDE_NO = 0;
  OPTION_TRADE_SIDE_ASK = 1;
  OPTION_TRADE_SIDE_BID = 2;
  OPTION_TRADE_SIDE_MID = 3;
}
```

## Values

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

OPTION\_TRADE\_SIDE\_NO
0

No side.

OPTION\_TRADE\_SIDE\_ASK
1

Hit the ask.

OPTION\_TRADE\_SIDE\_BID
2

Hit the bid.

OPTION\_TRADE\_SIDE\_MID
3

Filled at the mid.