---
title: "Carry monitor — spot-ETF flows vs. CME Leveraged-Funds shorts (weekly)"
method: GET
path: "/api/v1/carry-monitor"
tags: ["History"]
---

# Carry monitor — spot-ETF flows vs. CME Leveraged-Funds shorts (weekly)

`GET /api/v1/carry-monitor`

## Request

- Base URL: `https://tradingstrategies.work`
- URL: `https://tradingstrategies.work/api/v1/carry-monitor`
- Auth: HTTP bearer

Which part of a week's spot-BTC-ETF inflows coincided with a short build-up by CME Leveraged Funds — i.e. is compatible with a basis trade — and which did not? Weekly series aligned to the CFTC Commitments-of-Traders report date (Traders in Financial Futures, Futures Only; CME Bitcoin + Micro Bitcoin): ETF net flow in USD and BTC, Leveraged-Funds net short in BTC and its weekly change, deckung (an UPPER BOUND on how much of the inflow a short build-up could match, never the share of a basis trade), weekly funding mean and a descriptive label. Point-in-time via released_at / released_at_source; the futures-basis condition is not applied yet (basis_status). Window via `weeks`, tier-capped (Free 12, Pro 104, Power all); the `range` block declares requested vs. granted weeks. MCP: arena_get_carry_monitor.

## Query parameters

- `weeks` integer
- `as_of` string, date

## Response `200`

Container: question, series[] (one row per CFTC week), summary (weeks per label, inflow totals, median deckung), range (weeks), resolution, basis_status, provenance, note.

- object

## Other responses

- `400`: Invalid input — fehlt Pflichtfeld oder Wert außerhalb des erlaubten Bereichs.
- `401`: Unauthenticated — kein gültiger Bearer-Token im Authorization-Header.
- `403`: Tier-Insufficient — Endpoint braucht höheren API-Tier. Response enthält upgrade_url.
- `404`: Not-Found — Resource existiert nicht oder gehört nicht dem aktuellen User.
- `429`: Rate-Limit überschritten — Tier-Quota (hourly/daily) oder Per-Endpoint-Quota erreicht. Retry-After-Header gesetzt.
- `500`: Internal Error.
- `503`: Upstream-Failure — Datenquelle nicht erreichbar (Binance, EODHD, etc.).

---

[API](https://skmtc.dev/tradingstrategies/apis/backtesting-arena-public-api.md) · [All operations](https://skmtc.dev/tradingstrategies/apis/backtesting-arena-public-api/llms.txt) · [OpenAPI document](https://skmtc.dev/tradingstrategies/apis/backtesting-arena-public-api/revisions/f82e8d6eecd7?raw)