exhibit 10. 6 appendix b — subscription agreement cgm account no. : _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ please check here if employed by morgan stanley smith barney llc or an affiliate. _ _ _ _ _ _ please check here if employed by citigroup global markets inc. or an affiliate. orion futures fund l. p. ( a new york limited partnership ) subscription agreement selling agent : _ _ _ _ _ _ please check here if morgan stanley smith barney llc served as your selling agent. _ _ _ _ _ _ please check here if citigroup global markets inc. served as your selling agent. exhibit 10. 6 appendix b — subscription agreement cgm account no. : _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ please check here if employed by morgan stanley smith barney llc or an affiliate. _ _ _ _ _ _ please check here if employed by citigroup global markets inc. or an affiliate. orion futures fund l. p. ( a new york limited partnership ) subscription agreement selling agent : _ _ _ _ _ _ please check here if morgan stanley smith barney llc served as your selling agent. _ _ _ _ _ _ please check here if citigroup global markets inc. served as your selling agent. ceres managed futures llc 55 east 59th street — 10th floor new york, new york 10022 re : orion futures fund l. p. ladies and gentlemen : 1. subscription for units. i hereby irrevocably subscribe for the amount of units ( and partial units rounded to four decimal places ) of limited partnership interest ( “ units ” ) of orion futures fund l. p. ( the “ partnership ” ) as indicated on page b - 7 hereof. i understand that each unit will be offered at net asset value per unit on the date of sale. i understand that citigroup global markets inc., a corporation organized under the laws of the state of new york ( “ cgm ” ), and morgan stanley smith barney llc, a limited liability company organized under the laws of the state of delaware ( “ mssb ” ), act as selling agents for the partnership. i hereby authorize cgm to debit my brokerage account in the amount of my subscription as described in the private placement offering memorandum and disclosure document of the partnership dated august 1, 2009, as amended or supplemented from time to time ( the “ memorandum ” )