A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
   
Underlying asset/Underlying security   The asset subject to purchase or sale upon exercise of the derivative instrument.
   
Uncovered option writing   See Naked option writing
   
Underwriter   An investment firm that purchases a new issue of securities from an issuer and distributes it to investors.
   
Unit holder   A holder of a mutual fund unit.
   
Unlisted   A security not listed on an exchange but traded on the over-the-counter market.
 
Unit trust   An unincorporated fund whose organizational structure allows income realized by the fund to flow directly to unit holder.
 
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