The Collaborative International Dictionary of English v.0.48:

operations \operations\ n. (Finance)
   financial transactions at a brokerage; having to do with the
   execution of trades and keeping customer records.

   Syn: trading operations.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

operations
    n 1: financial transactions at a brokerage; having to do with
         the execution of trades and keeping customer records [syn:
         operations, trading operations]