Nasdaq · Rate Limits

Nasdaq Omx Group Rate Limits

Nasdaq Data Link enforces tier-based rate limits keyed on the API key (or source IP, when unauthenticated) across the Time-series, Tables, and Bulk Download APIs. Anonymous traffic is heavily throttled; signed-up free keys raise limits significantly; premium subscribers receive the highest ceiling. There is also a concurrency limit on the free tier and per-table caps on the Bulk Download API.

Nasdaq Omx Group Rate Limits is the machine-readable rate-limit profile for Nasdaq on the APIs.io network, conforming to the API Commons Rate Limits specification.

It captures 11 rate-limit definitions, measuring requests_per_10_minutes, requests_per_day, requests_per_10_seconds, concurrent_requests, and exports_per_hour.

The profile also includes 4 backoff/retry policies defined and response codes documented for throttled.

Tagged areas include Rate Limiting, Financial Data, Capital Markets, and Market Data.

11 Limits Throttle: 429
Rate LimitingFinancial DataCapital MarketsMarket Data

Limits

Anonymous (no API key) — 10 min IP
requests_per_10_minutes · minute
20
Anonymous (no API key) — daily IP
requests_per_day · day
50
Free authenticated — 10 sec key
requests_per_10_seconds · second
300
Free authenticated — 10 min key
requests_per_10_minutes · minute
2000
Free authenticated — daily key
requests_per_day · day
50000
Free authenticated concurrency key
concurrent_requests
1
One in-flight call plus one queued call per free key.
Premium subscriber — 10 min key
requests_per_10_minutes · minute
5000
Premium subscriber — daily key
requests_per_day · day
720000
Premium bulk export key
exports_per_hour · hour
60
qopts.export=true bulk exports.
Bulk Download — existing subscriber key/table
requests_per_day · day
30
Bulk Download — new subscriber (initial) key/table
requests_per_day · day
25

Policies

Authenticate to raise limits
Append your api_key query parameter (or use the SDK) to move from anonymous-IP throttling to per-key limits.
Subscribe for premium
A premium-dataset subscription on the same API key automatically lifts the key into the premium rate ceiling.
Concurrency on free tier
Free authenticated keys are limited to one concurrent call plus one queued call; design consumers to serialize requests.
Reset signaling
Rate-limit reset times are returned in response headers; respect them rather than tight-looping after a 429.

Sources