Market Data Explained

■ Security classifications – as with a number of other areas, the ISO has created a

standard called Classification for Financial Instruments (CFI). In addition, there

are a number of other classification schemes used across the industry, including

those produced by financial firms themselves.

As the above list shows, the universe of static data that is supported by accepted stand-

ards is relatively small.

Data type-specific

The second category of static data is, to put it politely, very diverse. Different data

services deliver data content in different ways. Where one feed uses a code value and

associated static data, another provides the definition ...