I want to retrieve the previous close price and %of change for many securities using Bloomberg java API and i'm asking about their name's field please help.
You can query fields on a Bloomberg terminal with the following command:
FLDS WHATEVER_YOU_ARE_LOOKING_FOR
In your case, FLDS PREVIOUS CLOSE
for example.
Which field to use depends on whether you need real time or not: you can either use PX_CLOSE_1D
or PREV_CLOSE_VALUE_REALTIME
.
For the % change, you can use CHG_PCT_1D
or RT_PX_CHG_PCT_1D
(note that the former does not adjust for dividends whereas the latter does).
Alternatively, you can download the history for those stocks over one day with the appropriate adjustment settings and/or (if you need real time) subscribe to current price and calculate the % change manually.