UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 12, 2017

ORION FUTURES FUND L.P.

(Exact name of registrant as specified in its charter)

c/o Ceres Managed Futures LLC

522 Fifth Avenue

New York, New York 10036

(Address and Zip Code of principal executive offices)

Registrant’s telephone number, including area code: (855) 672-4468

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Effective July 12, 2017, each of CMF TT II, LLC (“Transtrend Master Fund”) and CMF Winton Master L.P. (“Winton Master Fund” together with Transtrend Master Fund, the “Master Funds”) and JPMorgan Chase Bank, N.A. (“JPMorgan”) entered into respective foreign exchange and bullion authorization agreements with JPMorgan in connection with trading in forward foreign currency contracts on behalf of each Master Fund (and, indirectly, the Registrant) by Transtrend B.V. and Winton Capital Management Limited, respectively (each an “FX Agreement”). Pursuant to each FX Agreement and subject to a minimum fee agreement between the Registrant’s general partner and JPMorgan, JPMorgan will charge a fee on the aggregate foreign currency transactions entered into on behalf of the Master Funds during a month. Each FX Agreement will terminate on thirty days’ written notice from either the respective Master Fund or JPMorgan, or automatically pursuant to the early termination procedure referenced therein. In connection with the FX Agreements, each of the Master Funds and JPMorgan (and, as applicable, certain affiliates) also entered into, effective July 12, 2017, an International Swap Dealers Association, Inc. Master Agreement (each a “Master Agreement”), a Schedule to the Master Agreement and a 2016 Credit Support Annexes for Variation Margin to the Schedule, as well as an Institutional Account Agreement (each, an “IAA”). The Master Agreements will terminate upon either party’s failure to pay, breach of the Master Agreement, certain defaults, bankruptcy, merger without assumption, or upon such other events as described in the Master Agreements. Each IAA will generally terminate upon thirty days’ written notice by either party.

Additionally, effective July 12, 2017, CMF Willowbridge Master Fund L.P. (“Willowbridge Master Fund”), Willowbridge Associates Inc. (“Willowbridge”) and JPMorgan entered into a foreign exchange and bullion authorization agreement in connection with Willowbridge’s trading in forward foreign currency contracts on behalf of Willowbridge Master Fund and, indirectly, the Registrant (the “Willowbridge FX Agreement”). Pursuant to the Willowbridge FX Agreement and subject to a minimum fee agreement between the Registrant’s general partner and JPMorgan, JPMorgan will charge a fee on the aggregate foreign currency transactions entered into on behalf of the Willowbridge Master Fund during a month. The Willowbridge FX Agreement will terminate on thirty days’ written notice from either Willowbridge Master Fund or JPMorgan, or automatically pursuant to the early termination procedure referenced therein. In connection with the Willowbridge FX Agreement, Willowbridge Master Fund and JPMorgan (and, as applicable, certain affiliates) also entered into, effective July 12, 2017, an International Swap Dealers Association, Inc. Master Agreement (“Willowbridge Master Agreement”), a Schedule to the Master Agreement and a 2016 Credit Support Annex for Variation Margin to the Schedule, as well as an Institutional Account Agreement (the “Willowbridge IAA”). The Willowbridge Master Agreement will terminate upon either party’s failure to pay, breach of the Willowbridge Master Agreement, certain defaults, bankruptcy, merger without assumption, or upon such other events as described in the Willowbridge Master Agreement. The Willowbridge IAA will generally terminate upon thirty days’ written notice by either party.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: July 18, 2017