What does the "PX" prefix stand for?
Quantitative Finance Stack Exchange is a question and answer site for finance professionals and academics. It only takes a minute to sign up.Sign up to join this community
PX is often used as an abbreviation for price in Bloomberg.
Fields prefixed with
PX are generally static fields: the value is requested only once and is based on whatever information is available when you send that request. On the other hand, real time fields keep sending new data as it becomes evailable.
As an example:
PX_LAST is the last price as of when you request it and won't change afterwards, whereas
LAST_PRICE is a real time last price which will keep updating if you subscribe to those changes.
Other examples include
These are just Bloomberg mnemonic representations of data fields “Last Price”, “Volume” etc.