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2. Securities
9 Months Ended
Sep. 30, 2017
Notes to Financial Statements  
2. Securities

Securities owned are carried at fair value with realized and unrealized gains and losses reflected in trading profits. MSC clears all its security transactions through an unaffiliated clearing firm on a fully disclosed basis. Accordingly, MSC does not hold funds or securities for, or owe funds or securities to, its customers. Those functions are performed by its clearing firm.