Exhibit 99.1

To the Limited Partners of

CMF Winton Master L.P.

To the best of the knowledge and belief of the undersigned, the information contained herein is accurate and complete.

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Partners of CMF Winton Master L.P.:

We have audited the accompanying statements of financial condition of CMF Winton Master L.P. (the “Partnership”), including the condensed schedules of investments, as of December 31, 2015 and 2014, and the related statements of income and expenses and changes in partners’ capital for each of the three years in the period ended December 31, 2015. These financial statements are the responsibility of the Partnership’s management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. The Partnership is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Partnership’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such financial statements present fairly, in all material respects, the financial position of CMF Winton Master L.P. as of December 31, 2015 and 2014, and the results of its operations and changes in its partners’ capital for each of the three years in the period ended December 31, 2015, in conformity with accounting principles generally accepted in the United States of America.

/s/ Deloitte & Touche LLP

New York, New York

March 24, 2016

CMF Winton Master L.P.

Statements of Financial Condition

December 31, 2015 and 2014

See accompanying notes to financial statements.

CMF Winton Master L.P.

Condensed Schedule of Investments

December 31, 2015

U.S. Government Securities

See accompanying notes to financial statements.

CMF Winton Master L.P.

Condensed Schedule of Investments

December 31, 2014

See accompanying notes to financial statements.

CMF Winton Master L.P.

Statements of Income and Expenses

for the years ended

December 31, 2015, 2014 and 2013

See accompanying notes to financial statements.

CMF Winton Master L.P.

Statements of Changes in Partners’ Capital

for the years ended

December 31, 2015, 2014 and 2013

Net asset value per Redeemable Unit:

See accompanying notes to financial statements.

CMF Winton Master L.P.

Notes to Financial Statements

1. Partnership Organization:

CMF Winton Master L.P. (the “Master”) is a limited partnership organized under the partnership laws of the State of New York to engage in the speculative trading of a diversified portfolio of commodity interests including futures, option, swap and forward contracts. The sectors traded include currencies, energy, grains, indices, U.S. and non-U.S. interest rates, livestock, lumber, metals and softs. The commodity interests that are traded by the Master are volatile and involve a high degree of market risk. The General Partner (defined below) may also determine to invest up to all of the Master’s assets in United States (“U.S.”) Treasury bills and/or money market mutual funds, including money market mutual funds managed by Morgan Stanley or its affiliates. The Master may sell an unlimited number of redeemable units of limited partnership interest (“Redeemable Units”). The Redeemable Units of the Master are used solely for accounting purposes and do not represent units issued legally.

Ceres Managed Futures LLC, a Delaware limited liability company, acts as the general partner (the “General Partner”) and commodity pool operator of the Master. The General Partner is wholly owned by Morgan Stanley Smith Barney Holdings LLC (“MSSB Holdings”). MSSB Holdings is ultimately owned by Morgan Stanley. Morgan Stanley is a publicly held company whose shares are listed on the New York Stock Exchange. Morgan Stanley is engaged in various financial services and other businesses. Prior to June 28, 2013, Morgan Stanley indirectly owned a majority equity interest in MSSB Holdings and Citigroup Inc. indirectly owned a minority equity interest in MSSB Holdings. Prior to July 31, 2009, the date as of which MSSB Holdings became its owner, the General Partner was wholly owned by Citigroup Financial Products Inc., a wholly owned subsidiary of Citigroup Global Markets Holdings Inc., the sole owner of which is Citigroup Inc. All trading decisions for the Master are made by the Advisor (defined below).

On November 1, 2004 (commencement of trading operations), CMF Winton Feeder I L.P. (“Winton Feeder”) allocated substantially all of its capital, and Diversified Multi-Advisor Futures Fund L.P. (“Diversified”) and Orion Futures Fund L.P. (“Orion”) allocated a portion of their capital to the Master. Winton Feeder purchased 2,000.0000 Redeemable Units with cash equal to $2,000,000. On September 30, 2014, Winton Feeder redeemed its investment in the Master. This amounted to 372.6816 Redeemable Units with cash equal to $1,124,465. Orion purchased 35,389.8399 Redeemable Units with cash equal to $33,594,083 and a contribution of open commodity futures and forward contracts with a fair value of $1,795,757. Diversified purchased 15,054.1946 Redeemable Units with cash equal to $14,251,586 and a contribution of open commodity futures and forward contracts with a fair value of $802,609. On December 31, 2013, Diversified redeemed its investment in the Master. This amounted to 1,474.7838 Redeemable Units with cash equal to $4,064,224. On December 1, 2004, Tactical Diversified Futures Fund L.P. (“Tactical Diversified”) allocated a portion of its capital to the Master and purchased 52,981.2908 Redeemable Units with cash equal to $57,471,493. On August 31, 2011, Tactical Diversified redeemed its investment in the Master. This amounted to 12,054.4847 Redeemable Units with cash equal to $29,538,004. On July 1, 2005, Institutional Futures Portfolio L.P. (“Institutional Portfolio”) allocated a portion of its capital to the Master and purchased 5,741.8230 Redeemable Units with cash equal to $7,000,000. On February 1, 2007, Managed Futures Premier Abingdon L.P. (formerly, Abingdon Futures Fund L.P.) (“Abingdon”) allocated a portion of its capital to the Master and purchased 9,017.0917 Redeemable Units with cash equal to $12,945,000. On March 1, 2007, Global Futures Fund Ltd. (“Global Futures”) allocated a portion of its capital to the Master and purchased 1,875.7046 Redeemable Units with cash equal to $2,500,000. On April 1, 2009, Orion Futures Fund (Cayman) Ltd. (“Orion Cayman”) allocated a portion of its capital to the Master and purchased 319.5126 Redeemable Units with cash equal to $640,000. On June 30, 2013, Orion Cayman redeemed its investment in the Master. This amounted to 424.4000 Redeemable Units with cash equal to $1,067,417. On June 1, 2013, Morgan Stanley Managed Futures Custom Solutions Fund LP – Series A (“Custom Solutions”) allocated a portion of its capital to the Master and purchased 383.1755 Redeemable Units with cash equal to $1,000,000. The Master permits commodity pools managed by Winton Capital Management Limited (the “Advisor”) using the Winton Futures Program (formerly, the Winton Diversified Program, as applied without equities), the Advisor’s proprietary, systematic trading program, to invest together in one trading vehicle.

CMF Winton Master L.P.

Notes to Financial Statements

During the years ended December 31, 2015 and 2014, the Master’s commodity broker was Morgan Stanley & Co. LLC (“MS&Co.”), a registered futures commission merchant. During a prior period included in this report, Citigroup Global Markets Inc. (“CGM”) also served as a commodity broker.

The Master’s investors consist of Orion, Institutional Portfolio, Abingdon, Global Futures and Custom Solutions (each a “Feeder,” collectively, the “Funds”). Orion, Institutional Portfolio, Abingdon, Global Futures and Custom Solutions each owned approximately 58.4%, 1.1%, 38.9%, 0.9% and 0.7% of the Master at December 31, 2015, respectively. Orion, Institutional Portfolio, Abingdon, Global Futures and Custom Solutions each owned approximately 67.3%, 1.3%, 29.9%, 0.9% and 0.6% of the Master at December 31, 2014, respectively.

The Master will be liquidated upon the first to occur of the following: December 31, 2024: or under certain other circumstances as defined in the limited partnership agreement of the Master (the “Limited Partnership Agreement”).

In July 2015, the General Partner delegated certain administrative functions to SS&C Technologies, Inc., a Delaware corporation, currently doing business as SS&C GlobeOp (the “Administrator”). Pursuant to a master services agreement, the Administrator furnishes certain administrative, accounting, regulatory, reporting, tax and other services as agreed from time to time. In addition, the Administrator maintains certain books and records of the Master.

Master’s Cash. The Master’s cash includes cash denominated in foreign currencies of $15,762,494 and $10,918,951 as of December 31, 2015 and 2014, respectively. The cost of foreign currencies was $15,855,406 as of December 31, 2015, and based on the General Partner’s assessment, the cost of foreign currencies was not materially different from the fair value as of December 31, 2014.

CMF Winton Master L.P.

Notes to Financial Statements

CMF Winton Master L.P.

Notes to Financial Statements

The General Partner administers the business and affairs of the Master, including selecting one or more advisors to make trading decisions for the Master.

The General Partner, on behalf of the Master, has entered into a management agreement (the “Management Agreement”) with the Advisor, a registered commodity trading advisor. The Advisor is not affiliated with the General Partner or MS&Co./CGM and is not responsible for the organization or operation of the Master. The Management Agreement provides that the Advisor has sole discretion in determining the investment of the assets of the Master. All management fees in connection with the Management Agreement are borne by the Funds. The Management Agreement may be terminated upon notice by either party.

During the second quarter of 2013, the Master entered into a foreign exchange brokerage account agreement with MS&Co. Prior to and during part of the third quarter of 2013, the Master was party to a Customer Agreement with CGM (the “CGM Customer Agreement”). During the third quarter of 2013, the Master entered into a Customer Agreement with MS&Co. (the “MS&Co. Customer Agreement”). The Master has terminated the CGM Customer Agreement.

Under the CGM Customer Agreement, CGM provided services to the Master, including, among other things, the execution and clearing of transactions for the Master’s account in accordance with orders placed by the Advisor. All exchange, service, clearing, user, give-up, floor brokerage and National Futures Association (“NFA”) fees (collectively, the “CGM clearing fees”) were borne by the Master and allocated to the Funds. All other fees, including CGM’s direct brokerage fees, were borne by the Funds. During the term of the CGM Customer Agreement, all of the Master’s assets were deposited in the Master’s account at CGM. The Master’s cash was deposited by CGM in segregated bank accounts to the extent required by Commodity Futures Trading Commission regulations.

Under the MS&Co. Customer Agreement and the foreign exchange brokerage account agreement, the Master pays MS&Co. trading fees for the clearing and, where applicable, the execution of transactions. Further, all trading, exchange, clearing, user, give-up, floor brokerage and NFA fees (collectively, the “MS&Co. clearing fees” and together with the CGM clearing fees, the “clearing fees”) are borne by the Master and allocated to the Funds. All other fees are borne by the Funds. All of the Master’s assets are deposited in the Master’s account at MS&Co. The Master’s cash is deposited by MS&Co. in segregated bank accounts to the extent required by Commodity Futures Trading Commission regulations. At December 31, 2015 and 2014, the amount of cash held by the Master for margin requirements was $99,262,577 and $87,262,518, respectively. The MS&Co. Customer Agreement may generally be terminated upon notice by either party.

CMF Winton Master L.P.

Notes to Financial Statements

The Master was formed for the purpose of trading contracts in a variety of commodity interests, including derivative financial instruments and derivative commodity interests. The results of the Master’s trading activities are shown in the Statements of Income and Expenses.

The MS&Co. Customer Agreement with the Master gives the Master the legal right to net unrealized gains and losses on open futures and forward contracts. The Master nets, for financial reporting purposes, the unrealized gains and losses on open futures and forward contracts in the Statements of Financial Condition as the criteria under ASC 210-20, “Balance Sheet,” have been met.

All of the commodity interests owned by the Master are held for trading purposes. The monthly average number of futures contracts traded during the years ended December 31, 2015 and 2014 were 47,772 and 50,169, respectively. The monthly average number of metals forward contracts traded during the years ended December 31, 2015 and 2014 were 1,040 and 1,126, respectively. The monthly average notional values of currency forward contracts held during the years ended December 31, 2015 and 2014 were $625,854,119 and $634,466,265, respectively.

The following tables summarize the gross and net amounts recognized relating to assets and liabilities of the Master’s derivatives and their offsetting subject to master netting or similar arrangements as of December 31, 2015 and 2014, respectively.

CMF Winton Master L.P.

Notes to Financial Statements

The following tables indicate the gross fair values of derivative instruments of futures and forward contracts as separate assets and liabilities as of December 31, 2015 and 2014, respectively.

CMF Winton Master L.P.

Notes to Financial Statements

CMF Winton Master L.P.

Notes to Financial Statements

The following table indicates the trading gains and losses, by market sector, on derivative instruments for the years ended December 31, 2015, 2014 and 2013.

Master’s Fair Value Measurements. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date under current market conditions. The fair value hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to fair values derived from unobservable inputs (Level 3). The level in the fair value hierarchy within which the fair value measurement in its entirety falls shall be determined based on the lowest level input that is significant to the fair value measurement in its entirety.

The fair value of exchange-traded futures, option and forward contracts is determined by the various exchanges, and reflects the settlement price for each contract as of the close of business on the last business day of the reporting period. The fair value of foreign currency forward contracts is extrapolated on a forward basis from the spot prices quoted as of approximately 3:00 P.M. (E.T.) on the last business day of the reporting period from various exchanges. The fair value of non-exchange-traded foreign currency option contracts is calculated by applying an industry standard model application for options valuation of foreign currency options, using as input the spot prices, interest rates, and option implied volatilities quoted as of approximately 3:00 P.M. (E.T.) on the last business day of the reporting period. U.S. Treasury bills are valued at the last available bid price received from independent pricing services as of the close of the last business day of the reporting period.

The Master considers prices for exchange-traded commodity futures, forward, swap and option contracts to be based on unadjusted quoted prices in active markets for identical assets and liabilities (Level 1). The values of U.S. Treasury bills, non-exchange-traded forward, swap and certain option contracts for which market quotations are not readily available are priced by broker quotes or pricing services that derive fair values for those assets and liabilities from observable inputs (Level 2). As of and for the years ended December 31, 2015 and 2014, the Master did not hold any derivative instruments that were priced at fair value using unobservable inputs through the application of the General Partner’s assumptions and internal valuation pricing models (Level 3). Transfers between levels are recognized at the end of the reporting period. For the years ended December 31, 2015 and 2014, there were no transfers of assets or liabilities between Level 1 and Level 2.

CMF Winton Master L.P.

Notes to Financial Statements

Subscriptions are accepted monthly from investors and they become limited partners on the first day of the month after their subscriptions are processed. A limited partner may withdraw all or part of its capital contribution and undistributed profits, if any, from the Master as of the end of any month (the “Redemption Date”) after a request for redemption has been made to the General Partner at least three days in advance of the Redemption Date. Such withdrawals are classified as a liability when the limited partner elects to redeem and informs the Master.

CMF Winton Master L.P.

Notes to Financial Statements

Financial highlights for the limited partner class as a whole for the years ended December 31, 2015, 2014 and 2013 were as follows:

The above ratios and total return may vary for individual investors based on the timing of capital transactions during the year. Additionally, these ratios are calculated for the limited partner class using the limited partners’ share of income, expenses and average net assets.

CMF Winton Master L.P.

Notes to Financial Statements

In the normal course of business, the Master is party to financial instruments with off-balance sheet risk, including derivative financial instruments and derivative commodity instruments. These financial instruments may include forwards, futures, options and swaps whose values are based upon an underlying asset, index, or reference rate, and generally represent future commitments to exchange currencies or cash balances, or to purchase or sell other financial instruments at specific terms at specified future dates, or, in the case of derivative commodity instruments, to have a reasonable possibility to be settled in cash, through physical delivery or with another financial instrument. These instruments may be traded on an exchange, a swap execution facility or over-the-counter (“OTC”). Exchange-traded instruments include futures and certain standardized forward, option and swap contracts. Certain swap contracts may also be traded on a swap execution facility or OTC. OTC contracts are negotiated between contracting parties and also include certain forward and option contracts. Specific market movements of commodities or futures contracts underlying an option cannot be accurately predicted. The purchaser of an option may lose the entire premium paid for the option. The writer or seller of an option has unlimited risk. Each of these instruments is subject to various risks similar to those related to the underlying financial instruments, including market and credit risk. In general, the risks associated with OTC contracts are greater than those associated with exchange- traded instruments because of the greater risk of default by the counterparty to an OTC contract. The General Partner estimates that at any given time approximately 3.9% to 31.8% of the Master’s contracts are traded OTC.

Futures Contracts. The Master trades futures contracts. A futures contract is a firm commitment to buy or sell a specified quantity of investments, currency or a standardized amount of a deliverable grade commodity, at a specified price on a specified future date, unless the contract is closed before the delivery date or if the delivery quantity is something where physical delivery cannot occur (such as the S&P 500 Index), whereby such contract is settled in cash. Payments (“variation margin”) may be made or received by the Master each business day, depending on the daily fluctuations in the value of the underlying contracts, and are recorded as unrealized gains or losses by the Master. When the contract is closed, the Master records a realized gain or loss equal to the difference between the value of the contract at the time it was opened and its value at the time it was closed. Transactions in futures contracts require participants to make both initial margin deposits of cash or other assets and variation margin deposits, through the futures broker, directly with the exchange on which the contracts are traded. Net realized gains (losses) and net change in unrealized gains (losses) on futures contracts are included in the Statements of Income and Expenses.

Forward Foreign Currency Contracts. Forward foreign currency contracts are those contracts where the Master agrees to receive or deliver a fixed quantity of foreign currency for an agreed-upon price on an agreed-upon future date. Forward foreign currency contracts are valued daily, and the Master’s net equity therein, representing unrealized gain or loss on the contracts as measured by the difference between the forward foreign exchange rates at the dates of entry into the contracts and the forward rates at the reporting date, is included in the Statements of Financial Condition. Net realized gains (losses) and net change in unrealized gains (losses) on foreign currency contracts are recognized in the period in which the contract is closed or the changes occur, respectively, and are included in the Statements of Income and Expenses.

CMF Winton Master L.P.

Notes to Financial Statements

London Metals Exchange Forward Contracts. Metal contracts traded on the London Metals Exchange (“LME”) represent a firm commitment to buy or sell a specified quantity of aluminum, copper, lead, nickel, tin or zinc. LME contracts traded by the Master are cash settled based on prompt dates published by the LME. Payments (“variation margin”) may be made or received by the Master each business day, depending on the daily fluctuations in the value of the underlying contracts, and are recorded as unrealized gains or losses by the Master. A contract is considered offset when all long positions have been matched with a like number of short positions settling on the same prompt date. When the contract is closed at the prompt date, the Master records a realized gain or loss equal to the difference between the value of the contract at the time it was opened and its value at the time it was closed. Transactions in LME contracts require participants to make both initial margin deposits of cash or other assets and variation margin deposits, through the broker, directly with the LME. Net realized gains (losses) and net change in unrealized gains (losses) on metal contracts are included in the Statements of Income and Expenses.

The Master does not isolate that portion of the results of operations arising from the effect of changes in foreign exchange rates on investments from fluctuations from changes in market prices of investments held. Such fluctuations are included in total trading results in the Statements of Income and Expenses.

Market risk is the potential for changes in the value of the financial instruments traded by the Master due to market changes, including interest and foreign exchange rate movements and fluctuations in commodity or security prices. Market risk is directly impacted by the volatility and liquidity in the markets in which the related underlying assets are traded. The Master is exposed to market risk equal to the value of futures and forward contracts purchased and unlimited liability on such contracts sold short.

Credit risk is the possibility that a loss may occur due to the failure of a counterparty to perform according to the terms of a contract. The Master’s risk of loss in the event of counterparty default is typically limited to the amounts recognized in the Statements of Financial Condition and is not represented by the contract or notional amounts of the instruments. The Master’s risk of loss is reduced through the use of legally enforceable master netting agreements with counterparties that permit the Master to offset unrealized gains and losses and other assets and liabilities with such counterparties upon the occurrence of certain events. The Master had credit risk and concentration risk during the reporting period and prior periods, as MS&Co. and/or CGM or their affiliates were the sole counterparties or brokers with respect to the Master’s assets. Credit risk with respect to exchange-traded instruments is reduced to the extent that, through MS&Co. and/or CGM, the Master’s counterparty is an exchange or clearing organization. The Master continues to be subject to such risks with respect to MS&Co.

The General Partner monitors and attempts to control the Master’s risk exposure on a daily basis through financial, credit and risk management monitoring systems, and accordingly, believes that it has effective procedures for evaluating and limiting the credit and market risks to which the Master may be subject. These monitoring systems generally allow the General Partner to statistically analyze actual trading results with risk-adjusted performance indicators and correlation statistics. In addition, online monitoring systems provide account analysis of futures, forward and option contracts by sector, margin requirements, gain and loss transactions and collateral positions.

The majority of these instruments mature within one year of the inception date. However, due to the nature of the Master’s business, these instruments may not be held to maturity.