Level 2

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Level 2

An electronic service showing real-time quotes for each market maker on NASDAQ and the OTCBB. Level 2 allows the investors to find the market maker with the lowest bid-ask spread as trades are being executed.
References in periodicals archive ?
Where the need for a level two service emerges on an unplanned basis, the panel proposes the current neonatal transport service is extended to operate on a 24-hour basis.
But other NHS trusts have not been so fortunate - neonatal intensive care at the Royal Glamorgan Hospital, in Llantrisant, remains a level two service, unable to care for babies born at less than 28 weeks' gestation, more than a year after it was downgraded.
* Level two services (HTTP support): this level deals with services that host many resources, each of which is addressable through its own URI and supports various HTTP methods.
* Level three services (Hypermedia support): At this level, we find real RESTful services: Those having the features of level two services, and additionally support the notion of hypermedia as the engine of application state (HATEOAS), that is to say, the representations of the resources hosted by the service contain controls that enable consumers to access related resources.