28 Jan '10
Relevant paragraph of Rules of London Stock Exchange - 3040
Trade Type Description On Exchange / OTC /SI Venue ID Order book / Manual Publishes
AT Automatic Trade On Exchange XLON OB Immediate
UT Uncrossing trade On Exchange XLON OB Immediate
CT Same day order book contra On Exchange XLON OB Immediate
PC order book contra not same day On Exchange XLON Manual Immediate
O Ordinary Trade On Exchange XLON Manual Immediate
OK Ordinary Trade - delayed publication requested On Exchange XLON Manual Delayed if meets size requirements
NT Negotiated Trade On Exchange XLON Manual Immediate
NK Negotiated Trade - delayed publication requested On Exchange XLON Manual Delayed if meets size requirements
LC Cancellation of trade more than 3 days old On Exchange XLON Manual Immediate
NM Not to Mark On Exchange XLON Manual No
OT OTC Trade OTC XOFF Manual Immediate
TK OTC trade - delayed publication requested OTC XOFF Manual Delayed if meets size requirements
IF Inter fund cross -delayed publication requested OTC XOFF Manual Delayed if meets size requirements
OC Cancellation of OTC trade more than 3 days old OTC XOFF Manual Immediate
SI SI trade SI SI Manual Immediate
SK SI trade - delayed publication requested SI SI Manual Delayed if meets size requirements
SC Cancellation of SI trade more than 3 days old SI SI Manual Immediate
Original document to be opened in Excel
http://www.londonstockexchange.com/prices-and-news/prices-help/trade-type.htm
