# Greek flow

`GET` `https://api.unusualwhales.com/api/group-flow/{flow_group}/greek-flow`

Returns the group flow's greek flow (delta & vega flow) for the given market day broken down per minute.
Date must be the current or a past date. If no date is given, returns data for the current/last market day.


## Authentication

```
Authorization: Bearer YOUR_API_KEY
```

## Path Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `flow_group` | SingleFlowGroup | Yes | A flow group |

## Query Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `date` | Optional Market Date | No | A trading date in the format of YYYY-MM-DD.
This is optional and by default the last trading date.
 |


## Response (200)

| Field | Type | Description |
|-------|------|-------------|
| `dir_delta_flow` | Dir Delta Flow | The directional delta flow. |
| `dir_vega_flow` | Dir Vega Flow | The directional vega flow. |
| `flow_group` | Flow Group | A flow group where the flow data for all tickers in that group are aggregated. |
| `net_call_premium` | Market General Net Call Premium | Defined as (call premium ask side) - (call premium bid side). |
| `net_call_volume` | Market General Net Call Volume | Defined as (call volume ask side) - (call volume bid side). |
| `net_put_premium` | Market General Net Put Premium | Defined as (put premium ask side) - (put premium bid side). |
| `net_put_volume` | Market General Net Put Volume | Defined as (put volume ask side) - (put volume bid side). |
| `otm_dir_delta_flow` | OTM Dir Delta Flow | The directional delta flow of out-of-the-money options. |
| `otm_dir_vega_flow` | OTM Dir Vega Flow | The directional vega flow of out-of-the-money options. |
| `otm_total_delta_flow` | OTM Total Delta Flow | The total delta flow of out-of-the-money options. |
| `otm_total_vega_flow` | OTM Total Vega Flow | The total vega flow of out-of-the-money options. |
| `timestamp` | Timestamp | The (start of minute) timestamp of the data. |
| `total_delta_flow` | Total Delta Flow | The total delta flow. |
| `total_vega_flow` | Total Vega Flow | The total vega flow. |
| `transactions` | Transactions | The amount of transactions. |
| `volume` | Volume | The total options volume. |


## Example

### curl

```bash
curl -X GET "https://api.unusualwhales.com/api/group-flow/{flow_group}/greek-flow" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Accept: application/json"
```

### Python

```python
import http.client

conn = http.client.HTTPSConnection("api.unusualwhales.com")
headers = {"Authorization": "Bearer YOUR_API_KEY", "Accept": "application/json"}
conn.request("GET", "/api/group-flow/{flow_group}/greek-flow", headers=headers)
response = conn.getresponse()
print(response.read().decode("utf-8"))
```

## Response Example

```json
{
  "data": [
    {
      "dir_delta_flow": "-43593.96",
      "dir_vega_flow": "31243.04",
      "flow_group": "airline",
      "net_call_premium": "-1095135.00",
      "net_call_volume": 1049,
      "net_put_premium": "135732.00",
      "net_put_volume": 415,
      "otm_dir_delta_flow": "14947.51",
      "otm_dir_vega_flow": "11421.03",
      "otm_total_delta_flow": "-28564.02",
      "otm_total_vega_flow": "101745.64",
      "timestamp": "2024-10-28T18:46:00Z",
      "total_delta_flow": "-21257.36",
      "total_vega_flow": "350944.58",
      "transactions": 1188,
      "volume": 12348
    }
  ]
}
```