real-time market data

Real-time market data arrives as trades happen rather than delayed or at close, delivered as managed feeds or streams and priced at the top of the venue's fee schedule.

Access is entitled per user - Nasdaq's real-time products require sales-issued credentials under separate exchange agreements.

In this catalog it appears concretely: - Euronext Market Data -. - LSEG Data & Analytics Market Data - — "real-time managed distribution". - Nasdaq Data Link - real-time products (Nasdaq Basic, Last Sale+, Smart Options, Global Index Data Service) — "require sales-issued credentials".

A label on a listing is not a deliverable. Teams that license on the strength of a product-name match routinely find the shipped files cover a narrower slice than they assumed, and backfilling history afterwards costs more than the license ever did.

The failure mode is concrete: the label appears in a listing, the delivered files tell a different story, and the gap surfaces mid-project when fixing it is most expensive.

You rarely have to take a vendor's word for it. 82.4% of the 1,744 datasets Datadory catalogs are free to access, and Euronext Market Data - lets you inspect the real artifact before any budget is committed.

Treat every claim of this attribute as testable:

1. Open Euronext Market Data - and compare its listing against the delivered artifact before paying for a commercial equivalent.
2. Open LSEG Data & Analytics Market Data - and confirm its record — "real-time managed distribution" — against the files you actually receive.
3. Open Nasdaq Data Link - real-time products (Nasdaq Basic, Last Sale+, Smart Options, Global Index Data Service) and confirm its record — "require sales-issued credentials" — against the files you actually receive.

See the term applied to real records: financial-exchanges-data data.

Adjacent concepts worth reading next: - delayed quotes - level 1 level 2 level 3 data - websocket streaming