Trade Prices 
23/03/2009 
 

Trade Prices                     Description
Previous Closing Pricerefers to the last recorded closing price of an issue of securities.
Indicative Equilibrium Price (IEP)refers to a price, if any, determined by the AMS according to Rule 501H
at any specific moment during the Pre-opening Session.
Bid Pricerefers to the price of a buy order.
Ask Pricerefers to the price of a sell order.
Current Bid Priceis also known as best bid price and refers to the following: 
During the Pre-opening Session,
a. (when the IEP can be determined in accordance with Rule 501H) the IEP at any specific moment; otherwise
b.the highest bid price at any specific moment.
During the Continuous Trading Session, the highest bid price at any specific moment.
Current Ask Priceis also known as best ask price and refers to the following: 
During the Pre-opening Session,
a.(when the IEP can be determined in accordance with Rule 501H) the IEP at any specific moment; otherwise
b.the lowest ask price at any specific moment.
During the Continuous Trading Session, the lowest ask price at any specific moment.
Nominal Pricerefers to the following:
a.  in respect of an issue of securities at any one time during or at the close of the Pre-opening Session means:
i.(when the IEP can be determined in accordance with Rule 501H) the IEP; otherwise
ii.the previous closing price;
b.  in respect of an issue of securities at any one time during or at the close of the Continuous Trading Session on a trading day means:
i.if the issue has been traded up to that time on the day:
A.(when the current bid price is greater than the last recorded price), the current bid price; otherwise
B.(when the current ask price is less than the last recorded price), the current ask price; otherwise
C.where both (b)(i)(A) and (b)(i)(B) above do not apply, then the last recorded price; or
ii.if the issue has not been traded up to that time on the day:
A.(when the current bid price is greater than the previous closing price), the current bid price; otherwise
B.(when the current ask price is less than the previous closing price), the current ask price; otherwise
C.where both (b)(ii)(A) and (b)(ii)(B) above do not apply, then the previous closing price.
Closing PricePlease click here for the description of closing price.
Last Recorded Pricerefers to the sale price as last recorded in the AMS.
Day High Pricerefers to the highest price of a non-direct trade concluded by automatic order matching (including auction matching) during the day.
Day Low Pricerefers to the lowest price of a non-direct trade concluded by automatic order matching (including auction matching) during the day.