---
title: "Top movers by insurance balance sheet delta (qoq/yoy)"
method: GET
path: "/api/v1/ecb/icb/insurance/changes"
tags: ["Hedge Fund Intelligence"]
---

# Top movers by insurance balance sheet delta (qoq/yoy)

`GET /api/v1/ecb/icb/insurance/changes`

Euro-area countries ranked by absolute change in insurance balance sheet size (T00) across periods. `period=qoq` compares latest quarter to one quarter back; `period=yoy` to four quarters back. Sort is by absolute delta descending so both fastest accumulators and biggest contractors surface together. Excludes U2 (would self-compare) and reporters with gaps in the comparison window.

## Query parameters

- `period` string — `qoq` = quarter-over-quarter; `yoy` = year-over-year.
- `limit` integer

## Response `200`

Top movers ranked by absolute T00 change.

- EnvelopeEcbIcbChanges
  - `data` EcbIcbChanges, required — Top movers by absolute T00 (total balance sheet) delta. Excludes U2.
    - `sector_code` string, required
    - `period` string, required — `qoq` = quarter-over-quarter; `yoy` = year-over-year (4 quarters).
    - `count` integer, required
    - `rows` EcbIcbChangeRow[], required
      - `rank` integer, required
      - `country` string, required
      - `name` string, required
      - `period_current` string, required
      - `period_prior` string, required
      - `value_current_eur_mn` number, nullable, required
      - `value_prior_eur_mn` number, nullable, required
      - `delta_eur_mn` number, required — value_current - value_prior in EUR millions; positive = increase.
      - `delta_pct` number, nullable — Percentage change. None when prior is zero.
  - `meta` SugraMeta, required — Metadata attached to every /api/v1/* response envelope.
    - `endpoint` string, required — Requested endpoint path.
    - `data_time` string, required — ISO 8601 UTC timestamp of the source data, not of the request.
    - `response_time` string, required — ISO 8601 UTC timestamp when this response was produced.
    - `provider` string, required — API name and version.
    - `source` string, nullable — Identifier of the primary upstream source used for this response.
    - `attribution` string, nullable — Human-readable attribution mandated by an upstream source (e.g. a securities regulator or self-regulatory organization). Present only on responses whose source requires the owner and source to be clearly identified. Do not remove or alter it when using the response.
    - `fallback_used` boolean, nullable — True when the primary source failed and a fallback produced the data.
    - `fallback_chain` string[], nullable — Ordered list of sources attempted, in the order they were tried.
    - `cached` boolean, nullable — True when this response was served from the internal cache.
    - `stale` boolean, nullable — True when the cached response was returned after the upstream rate-limited or errored. Clients can use this to detect degraded data.

## Other responses

- `401` — Missing or invalid `x-api-key` header.
- `422` — Validation Error
- `429` — Daily rate limit exceeded. Check `X-RateLimit-Reset` for the next window.
- `503` — Upstream source is temporarily unavailable. Retry after a short delay.

---

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