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Regarding PX_LAST, PX_VOLUME etc...

What does the "PX" prefix stand for?

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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 PX_BID vs. BID, PX_VOLUME vs. VOLUME etc.

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  • $\begingroup$ More looking for what the P and the S letters stand for . In PX_VOLUME PX cannot stand for price, as that would mean PRICE_VOLUME. It is just volume so not really sure. $\endgroup$ – user2397817 May 27 '13 at 15:43
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    $\begingroup$ There is no S letters there, so I'm not sure what you mean. PX_VOLUME means Price Trading Volume - usually the daily trading volume of trading for that particular instrument. $\endgroup$ – Olorun May 27 '13 at 16:14
  • $\begingroup$ When I am querying reference data service, instead of subscribing to intraday, will PX_LAST be effectively same as LAST_PRICE? $\endgroup$ – Den Aug 21 '15 at 10:21
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    $\begingroup$ @Den yes it should be the same - obviously being a reference request you will get a snapshot of the price at the time of the request but it won't update afterwards. $\endgroup$ – assylias Aug 21 '15 at 11:14
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These are just Bloomberg mnemonic representations of data fields “Last Price”, “Volume” etc.

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  • $\begingroup$ More looking for what the P and the S letters stand for . $\endgroup$ – user2397817 May 27 '13 at 15:42

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