---
title: "Sector- or industry-level flow aggregation"
method: GET
path: "/v1/flow/sector/{sector}"
tags: ["Sector"]
---

# Sector- or industry-level flow aggregation

`GET /v1/flow/sector/{sector}`

Aggregates options flow across all tickers in a GICS sector. The
`{sector}` path parameter accepts either a sector ETF symbol
(`XLK`, `XLF`, `XLE`, …) or a sector name (`Technology`,
`Financials`, …). Returns sector-level metrics, top-contributor
tickers, and an industry-level breakdown.

## Path parameters

- `sector` string, required

## Query parameters

- `date` string, date
- `top_n` integer

## Response `200`

Sector flow aggregation.

- SectorFlowSuccess
  - `data` SectorFlowResponse, required
    - `sector` string, required
    - `etf` string, nullable — Sector ETF symbol when resolvable (e.g. `XLK` for Technology).
    - `date` string, date, required
    - `metrics` SectorMetrics, required
      - `totalPremium` number, required
      - `callPremium` number, required
      - `putPremium` number, required
      - `netPremium` number, required
      - `totalVolume` integer, required
      - `callVolume` integer, required
      - `putVolume` integer, required
      - `netVolume` integer, required
      - `fir` number, required — Flow Imbalance Ratio (-100..+100).
      - `putCallRatio` number, required
    - `topContributors` TopContributor[], required
      - `ticker` string, required
      - `netPremium` number, required
      - `callPremium` number, required
      - `putPremium` number, required
      - `pctOfSector` number, required — Share of the sector's net premium (0–100).
    - `industryBreakdown` IndustryBreakdown[], required
      - `industry` string, required
      - `netPremium` number, required
      - `totalPremium` number, required
      - `pctOfSector` number, required
      - `tickerCount` integer, required
    - `tickerCount` integer, required
  - `meta` Meta, required
    - `timestamp` string, date-time, required — Server-side timestamp the response was generated at.
    - `requestId` string, required — Short opaque ID for log correlation.

## Other responses

- `400` — Request validation failed.
- `401` — Missing or invalid API key.
- `402` — The account's shared Skylit credit balance is lower than this route's cost. Top up to continue. Carries `X-Credits-Remaining: 0`.
- `403` — API key revoked/expired, monthly quota exceeded, or the account's API access is suspended (`account_suspended`).
- `404` — Unknown resource (ticker / sector / window with no data).
- `429` — Per-minute rate limit exceeded.
- `503` — Underlying data source temporarily unavailable, or the credit balance could not be verified (`credit_check_failed`). Safe to retry.

---

[API](https://skmtc.net/skylit/apis/flowseeker-skylit-public-api.md) · [All operations](https://skmtc.net/skylit/apis/flowseeker-skylit-public-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/skylit/flowseeker-skylit-public-api/versions/3280190b1b24/schema)