In refinitiv RawMarketByPrice is acc_size in round lots or shares?

Jwan622

The ACC_SIZE field in the RawMarketByPrice download. Is that in round lots of shares? A round lot is = 100 shares correct? So in a message like this:

,,,,MapEntry,,ADD,,,,,,155.000000A,,6
,,,,FID,6529,,LV_DATE,2025-08-18,
,,,,FID,3427,,ORDER_PRC,155,
,,,,FID,6527,,LV_TIM_MS,28901767,
,,,,FID,3428,,ORDER_SIDE,2,ASK
,,,,FID,4356,,ACC_SIZE,1692,
…
ABNB.ARC,Market By Price,2025-08-18T16:04:41.517189912Z,-4,Raw,UPDATE,UNSPECIFIED,,,,5100,,46544,,0
,,,,Summary,,,,,,,,,,5
,,,,FID,4148,,TIMACT_MS,57881503,
,,,,FID,14269,,TIMACT_NS,16:04:41.503087316,
,,,,FID,17,,ACTIV_DATE,2025-08-18,
,,,,FID,1021,,SEQNUM,50442064,
,,,,FID,13490,,ORDBK_DEPH,1,FB    
,,,,MapEntry,,UPDATE,,,,,,125.260000A,,6
,,,,FID,6529,,LV_DATE,2025-08-18,
,,,,FID,3427,,ORDER_PRC,125.26,
,,,,FID,6527,,LV_TIM_MS,57881503,
,,,,FID,3428,,ORDER_SIDE,2,ASK
,,,,FID,4356,,ACC_SIZE,63,

Are there 1692 shares on the ask at $155 or 169200?

ABNB.ARC,Market By Price,2025-08-18T16:08:03.041505211Z,-4,Raw,UPDATE,UNSPECIFIED,,,,5100,,56736,,0
,,,,Summary,,,,,,,,,,5
,,,,FID,1021,,SEQNUM,51067265,
,,,,FID,4148,,TIMACT_MS,58083027,
,,,,FID,14269,,TIMACT_NS,16:08:03.027945916,
,,,,FID,17,,ACTIV_DATE,2025-08-18,
,,,,FID,13490,,ORDBK_DEPH,1,FB    
,,,,MapEntry,,UPDATE,,,,,,125.290000B,,6
,,,,FID,6529,,LV_DATE,2025-08-18,
,,,,FID,3427,,ORDER_PRC,125.29,
,,,,FID,6527,,LV_TIM_MS,58083027,
,,,,FID,3428,,ORDER_SIDE,1,BID
,,,,FID,4356,,ACC_SIZE,1,
,,,,FID,3430,,NO_ORD,1,

It's probably in round lots correct, meaning the ACC_SIZE,1 stands for 100 shares at 125.29 Right?

-Jeff

Jirapongse

@Jwan622

Thank you for reaching out to us.

I found the definition of this ACC_SIZE field in the Data Model Discovery.

The total quantity of shares represented in an aggregated MBP row

However, to clarify its meaning and usage, please reach out to the Helpdesk team directly via LSEG Support.

Please include the URL of this discussion in your raised question to prevent it from being redirected back to this Q&A forum.