Ceres Tactical Commodity 10-Q 9 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 31, 2018
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Trading Symbol	ck0001325676
Entity Registrant Name	CERES TACTICAL COMMODITY L.P.
Entity Central Index Key	1,325,676
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		48,352.9367
Capital Unit Class D [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		500
Class Z [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		0

Statements of Financial Conditi

Statements of Financial Condition - USD ($)		Jun. 30, 2018	Dec. 31, 2017
Assets:
Investment in the Fund(s), at fair value	[1]	$ 23,692,276	$ 69,682,811
Redemptions receivable from the Funds		490,073	7,919,027
Equity in trading account:
Unrestricted cash		38,141,858	220,802
Restricted cash		4,452,352	0
Options purchased, at fair value (premiums paid $940,987 and $0 at June 30, 2018 and December 31, 2017, respectively)		832,608
Total equity in trading account		43,426,818	220,802
Cash at bank			436
Interest receivable		55,474
Total assets		67,664,641	77,823,076
Liabilities:
Options written, at fair value (premiums received $1,408,106 and $0 at June 30, 2018 and December 31, 2017, respectively)		1,372,303
Accrued expenses:
Ongoing selling agent fees		108,825	127,998
Management fees		84,706	80,706
General Partner fees		54,773	64,565
Incentive fees		354,687
Professional fees		210,814	216,978
Redemptions payable to General Partner			250,000
Redemptions payable to Limited Partners		1,185,606	7,367,055
Total liabilities		3,616,725	8,107,302
Partners' Capital:
Total partners' capital (net asset value)		64,047,916	69,715,774
Total liabilities and partners' capital		67,664,641	77,823,076
Forwards [Member]
Liabilities:
Net unrealized depreciation on open forward contracts		51,899
Futures [Member]
Liabilities:
Net unrealized depreciation on open forward contracts		193,112
Class Z [Member]
Partners' Capital:
General Partner, Class Z, 745.0230 and 795.9520 Redeemable Units outstanding at June 30, 2018 and December 31, 2017, respectively		744,456	769,492
Total partners' capital (net asset value)		$ 744,456	$ 769,492
Net asset value per Redeemable Unit		$ 999.24	$ 966.76
Class A [Member]
Partners' Capital:
Limited Partners, Class A, 48,881.9407 and 54,475.3577 Redeemable Units outstanding at June 30, 2018 and December 31, 2017, respectively		$ 63,303,460	$ 68,946,282
Total partners' capital (net asset value)		$ 63,303,460	$ 68,946,282
Net asset value per Redeemable Unit		$ 1,295.03	$ 1,265.64
[1]	Defined in Note 1.

Statements of Financial Condit3

Statements of Financial Condition (Parenthetical) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Options purchased, premiums paid	$ 940,987	$ 0
Options written, premiums received	$ 1,408,106	$ 0
Class Z [Member]
General Partner Redeemable Units outstanding	745.0230	795.9520
Class A [Member]
Limited Partners Redeemable Units outstanding	48,881.9407	54,475.3577

Condensed Schedule of Investmen

Condensed Schedule of Investments	Jun. 30, 2018USD ($)Derivative
Schedule of Investments [Line Items]
Investment, Fair Value	$ 23,692,276	[1]
Percentage of Partners' Capital	36.99%
Futures [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts	$ (193,112)
Percentage of Partners' Capital	(0.30%)
Option Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Investment, Fair Value	$ 1,221,155
Percentage of Partners' Capital	1.91%
Option Purchased [Member] | Option [Member]
Schedule of Investments [Line Items]
Investment, Fair Value	$ 832,608
Percentage of Partners' Capital	1.30%
Options Written [Member] | Futures [Member]
Schedule of Investments [Line Items]
Investment, Fair Value	$ (1,414,267)
Percentage of Partners' Capital	(2.21%)
Options Written [Member] | Option [Member]
Schedule of Investments [Line Items]
Investment, Fair Value	$ (1,372,303)
Percentage of Partners' Capital	(2.14%)
Metals [Member] | Option Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	111
Investment, Fair Value	$ (152,926)
Percentage of Partners' Capital	(0.24%)
Metals [Member] | Options Written [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	39
Investment, Fair Value	$ 37,503
Percentage of Partners' Capital	0.06%
Currencies [Member] | Option Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	28
Investment, Fair Value	$ (42,984)
Percentage of Partners' Capital	(0.07%)
Energy [Member] | Option Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	865
Investment, Fair Value	$ 2,435,188
Percentage of Partners' Capital	3.80%
Energy [Member] | Options Written [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	730
Investment, Fair Value	$ (2,062,904)
Percentage of Partners' Capital	(3.22%)
Grains [Member] | Option Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	619
Investment, Fair Value	$ (1,015,783)
Percentage of Partners' Capital	(1.59%)
Grains [Member] | Options Written [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	633
Investment, Fair Value	$ 307,237
Percentage of Partners' Capital	0.48%
Livestock [Member] | Option Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	48
Investment, Fair Value	$ 56,200
Percentage of Partners' Capital	0.09%
Livestock [Member] | Options Written [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	46
Investment, Fair Value	$ (25,500)
Percentage of Partners' Capital	(0.04%)
Softs [Member] | Option Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	174
Investment, Fair Value	$ (58,540)
Percentage of Partners' Capital	(0.08%)
Softs [Member] | Options Written [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	196
Investment, Fair Value	$ 329,397
Percentage of Partners' Capital	0.51%
Forwards [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts	$ (51,899)
Percentage of Partners' Capital	(0.08%)
Total unrealized appreciation on open contracts	$ 2,819,788
Total unrealized depreciation on open contracts	(2,871,687)
Forwards [Member] | Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts	2,819,788
Total unrealized depreciation on open contracts	(2,871,687)
Calls [Member] | Option Purchased [Member] | Option [Member]
Schedule of Investments [Line Items]
Investment, Fair Value	$ 432,700
Percentage of Partners' Capital	0.68%
Calls [Member] | Options Written [Member] | Option [Member]
Schedule of Investments [Line Items]
Investment, Fair Value	$ (532,170)
Percentage of Partners' Capital	(0.83%)
Calls [Member] | Metals [Member] | Option Purchased [Member] | Option [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	205
Investment, Fair Value	$ 371,487
Percentage of Partners' Capital	0.58%
Calls [Member] | Metals [Member] | Options Written [Member] | Option [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	178
Investment, Fair Value	$ (526,732)
Percentage of Partners' Capital	(0.82%)
Calls [Member] | Energy [Member] | Option Purchased [Member] | Option [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	1
Investment, Fair Value	$ 150
Percentage of Partners' Capital	0.00%
Calls [Member] | Grains [Member] | Option Purchased [Member] | Option [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	123
Investment, Fair Value	$ 48,288
Percentage of Partners' Capital	0.08%
Calls [Member] | Grains [Member] | Options Written [Member] | Option [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	29
Investment, Fair Value	$ (5,438)
Percentage of Partners' Capital	(0.01%)
Calls [Member] | Softs [Member] | Option Purchased [Member] | Option [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	8
Investment, Fair Value	$ 12,775
Percentage of Partners' Capital	0.02%
Puts [Member] | Option Purchased [Member] | Option [Member]
Schedule of Investments [Line Items]
Investment, Fair Value	$ 399,908
Percentage of Partners' Capital	0.62%
Puts [Member] | Options Written [Member] | Option [Member]
Schedule of Investments [Line Items]
Investment, Fair Value	$ (840,133)
Percentage of Partners' Capital	(1.31%)
Puts [Member] | Metals [Member] | Option Purchased [Member] | Option [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	146
Investment, Fair Value	$ 399,908
Percentage of Partners' Capital	0.62%
Puts [Member] | Metals [Member] | Options Written [Member] | Option [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	183
Investment, Fair Value	$ (518,322)
Percentage of Partners' Capital	(0.80%)
Puts [Member] | Energy [Member] | Options Written [Member] | Option [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	14
Investment, Fair Value	$ (23,686)
Percentage of Partners' Capital	(0.04%)
Puts [Member] | Grains [Member] | Options Written [Member] | Option [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	225
Investment, Fair Value	$ (298,125)
Percentage of Partners' Capital	(0.47%)
MB Master Fund L.P. [Member]
Schedule of Investments [Line Items]
Investment, Fair Value	$ 8,270,055
Percentage of Partners' Capital	12.91%
CMF Harbour Square Master Fund LLC [Member]
Schedule of Investments [Line Items]
Investment, Fair Value	$ 15,422,221
Percentage of Partners' Capital	24.08%
Assets [Member] | Forwards [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital	4.40%
Assets [Member] | Forwards [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative	607
Percentage of Partners' Capital	4.40%
Liabilities [Member] | Forwards [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital	(4.48%)
Liabilities [Member] | Forwards [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts	633
Percentage of Partners' Capital	(4.48%)
[1]	Defined in Note 1.

Condensed Schedule of Investme5

Condensed Schedule of Investments - (Parenthetical)	Jun. 30, 2018USD ($)
Schedule of Investments [Line Items]
Options purchased, premium paid	$ 940,987
Options written, premium received	1,408,106
Option Purchased [Member] | Option [Member]
Schedule of Investments [Line Items]
Options purchased, premium paid	940,987
Options Written [Member] | Option [Member]
Schedule of Investments [Line Items]
Options written, premium received	1,408,106
Calls [Member] | Option Purchased [Member] | Option [Member]
Schedule of Investments [Line Items]
Options purchased, premium paid	607,913
Calls [Member] | Options Written [Member] | Option [Member]
Schedule of Investments [Line Items]
Options written, premium received	727,347
Puts [Member] | Option Purchased [Member] | Option [Member]
Schedule of Investments [Line Items]
Options purchased, premium paid	333,074
Puts [Member] | Options Written [Member] | Option [Member]
Schedule of Investments [Line Items]
Options written, premium received	$ 680,759

Statements of Income and Expens

Statements of Income and Expenses - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Investment Income:
Interest income		$ 160,343		$ 294,601
Interest income allocated from the Fund(s)		102,901	$ 173,995	197,874	$ 306,978
Total investment income		263,244	173,995	492,475	306,978
Expenses:
Expenses allocated from the Funds		95,188	388,618	172,731	713,764
Clearing fees related to direct investments		141,217		275,664
Ongoing selling agent fees		333,832	482,194	674,383	1,016,293
Management fees		258,712	303,880	518,982	640,450
General Partner fees		168,010	243,105	339,474	512,361
Incentive fees		341,419		415,320
Professional fees		87,538	93,238	178,194	190,147
Total expenses		1,425,916	1,511,035	2,574,748	3,073,015
Net investment loss		(1,162,672)	(1,337,040)	(2,082,273)	(2,766,037)
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net realized gains (losses) on closed contracts		2,882,877		3,458,066
Net realized gains (losses) on closed contracts allocated from the Funds		144,570	(159,868)	865,514	(950,764)
Net change in unrealized gains (losses) on open contracts		(359,919)		(327,453)
Net change in unrealized gains (losses) on open contracts allocated from the Funds		(642,747)	(818,452)	(338,694)	(1,060,095)
Total trading results		2,024,781	(978,320)	3,657,433	(2,010,859)
Net income (loss)		$ 862,109	$ (2,315,360)	1,575,160	(4,776,896)
Class A [Member]
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss)				$ 1,550,196	$ (4,734,222)
Net income (loss) per Redeemable Unit	[1]	$ 16.22	$ (32.86)	$ 29.39	$ (63.04)
Weighted average Redeemable Units outstanding		50,732.9224	73,967.7534	51,862.9645	77,388.6140
Class Z [Member]
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss)				$ 24,964	$ (42,674)
Net income (loss) per Redeemable Unit	[1]	$ 17.49	$ (19.90)	$ 32.48	$ (37.58)
Weighted average Redeemable Units outstanding		745.0230	1,223.2407	770.4875	1,265.4138
[1]	Represents the change in net asset value per Redeemable Unit during the period.

Statements of Changes in Partne

Statements of Changes in Partners' Capital - USD ($)	Total	Class A [Member]	Class Z [Member]	General Partner [Member]	General Partner [Member]Class A [Member]	General Partner [Member]Class Z [Member]	Limited Partners [Member]	Limited Partners [Member]Class A [Member]
Partners' Capital, beginning of period at Dec. 31, 2016	$ 103,433,044	$ 103,433,044
Partners' Capital, Redeemable Units, beginning of period at Dec. 31, 2016	77,437.5062	77,437.5062
Subscriptions				$ 1,307,587		$ 1,307,587	$ 8,129,804	$ 8,129,804
Subscriptions, Redeemable Units				1,307.587		1,307.587	6,086.936	6,086.936
Redemptions				$ (1,458,476)	$ (1,208,476)	$ (250,000)	$ (18,696,366)	$ (18,696,366)
Redemptions, Redeemable Units				(1,157.7925)	(904.7535)	(253.0390)	(14,319.07)	(14,319.07)
Net income (loss)	$ (4,776,896)	$ (4,734,222)	$ (42,674)
Partners' Capital, end of period at Jun. 30, 2017	$ 87,938,697	$ 86,923,784	$ 1,014,913
Partners' Capital, Redeemable Units, end of period at Jun. 30, 2017	69,355.1667	68,300.6187	1,054.5480
Partners' Capital, beginning of period at Dec. 31, 2017	$ 69,715,774	$ 68,946,282	$ 769,492
Partners' Capital, Redeemable Units, beginning of period at Dec. 31, 2017	55,271.3097	54,475.3577	795.9520
Subscriptions							$ 1,565,000	$ 1,565,000
Subscriptions, Redeemable Units							1,218.556	1,218.556
Redemptions				$ (50,000)		$ (50,000)	$ (8,758,018)	$ (8,758,018)
Redemptions, Redeemable Units				(50.929)		(50.929)	(6,811.973)	(6,811.973)
Net income (loss)	$ 1,575,160	$ 1,550,196	$ 24,964
Partners' Capital, end of period at Jun. 30, 2018	$ 64,047,916	$ 63,303,460	$ 744,456
Partners' Capital, Redeemable Units, end of period at Jun. 30, 2018	49,626.9637	48,881.9407	745.0230

Organization

Organization	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	1. Organization: Ceres Tactical Commodity L.P. (formerly, Managed Futures Premier Aventis II L.P.) (the “Partnership”) is a limited partnership organized on April 20, 2005 under the partnership laws of the State of New York to engage, directly or indirectly, in the speculative trading of commodity interests on U.S. and international futures, options on futures and forward markets. The Partnership may also engage, directly or indirectly, in swap transactions and other derivative transactions with the approval of the General Partner (as defined below). Initially, the Partnership’s investment strategy focused on energy and energy-related investments. While the Partnership is expected to continue to have exposure to energy and energy-related markets, such trading will no longer be the Partnership’s primary focus. Therefore, the Partnership’s past trading performance will not necessarily be indicative of future results. The commodity interests that are traded by the Partnership, directly or indirectly through its investment in the Funds (as defined below) are volatile and involve a high degree of market risk. The General Partner may also determine to invest up to all of the Partnership’s assets (directly or indirectly through its investment in the Funds (as defined below)) 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. During the initial offering period, the Partnership sold 11,925 redeemable units of limited partnership interest in the Partnership (“Redeemable Units”). The Partnership commenced trading on September 6, 2005. The Partnership privately and continuously offers Redeemable Units to qualified investors. There is no maximum number of Redeemable Units that may be sold by the Partnership. Ceres Managed Futures LLC, a Delaware limited liability company, acts as the general partner (the “General Partner”) and commodity pool operator of the Partnership and is the trading manager (“Trading Manager”) of Harbour Square Master (as defined below). The General Partner is a wholly-owned As of June 30, 2018, all trading decisions are made for the Partnership by Aventis Asset Management, LLC (“Aventis”), Millburn Ridgefield Corporation (“Millburn”), Ospraie Management LLC (“Ospraie”) and Harbour Square Capital Management LLC (“Harbour Square”) (each, an “Advisor” and, collectively, the “Advisors”), each of which is a registered commodity trading advisor. Each Advisor is allocated a portion of the Partnership’s assets to manage. The Partnership invests the portion of its assets allocated to each of the Advisors either directly, through individually managed accounts, or indirectly, through its investment in the Funds. The Advisors are not affiliated with one another, are not affiliated with the General Partner and MS&Co. and are not responsible for the organization or operation of the Partnership. As of June 13, 2018, the Partnership began offering three classes of limited partnership interests, Class A Redeemable Units, Class D Redeemable Units and Class Z Redeemable Units. All Redeemable Units issued prior to October 31, 2016 were deemed “Class A Redeemable Units.” Class Z Redeemable Units were first issued on January 1, 2017. The rights, liabilities, risks and fees associated with investment in the Class A Redeemable Units were not changed. Class A Redeemable Units, Class D Redeemable Units and Class Z Redeemable Units will each be referred to as a “Class” and collectively referred to as the “Classes.” The rights, liabilities, risks, and fees associated with investment in the Class A Redeemable Units and Class Z Redeemable Units were not changed. Class A Redeemable Units and Class D Redeemable Units are available to taxable U.S. individuals and institutions, U.S. tax exempt individuals and institutions and non-U.S. month-end month-end During the reporting periods ended June 30, 2018 and 2017, the Partnership’s/Funds’ commodity broker was Morgan Stanley & Co. LLC (“MS&Co.”), a registered futures commission merchant. During prior periods included in this report, the Partnership/Funds also deposited a portion of their cash in non-trading Millburn and Ospraie directly trade the Partnership’s assets allocated to each Advisor through managed accounts in the name of the Partnership pursuant to Millburn’s Commodity Program and Ospraie’s Commodity Program, respectively. MB Master Fund L.P. (“MB Master”) and CMF Harbour Square Master Fund LLC (“Harbour Square Master”) have entered into futures brokerage account agreements with MS&Co and foreign exchange brokerage account agreements with MS&Co. MB Master and Harbour Square Master are collectively referred to as the “Funds.” The Partnership’s/Funds’ trading of futures, forward, swap and option contracts, if applicable, on commodities is done primarily on U.S. commodity exchanges and foreign commodity exchanges. The Partnership/Funds engage in such trading through a commodity brokerage account maintained with MS&Co. The Partnership has entered into futures brokerage account agreements with MS&Co. The Partnership, directly and through its investment in the Funds, pays MS&Co. (or will reimburse MS&Co. if previously paid) its allocable share of all trading fees for the clearing and, where applicable, execution of transactions as well as exchange, user, give-up, The Partnership has entered into a selling agreement (as amended, the “Selling Agreement”) with Morgan Stanley Wealth Management. Pursuant to the Selling Agreement, the Partnership pays Morgan Stanley Wealth Management a monthly ongoing selling agent fee at the rates described above. The ongoing selling agent fee received by Morgan Stanley Wealth Management is shared with the properly registered or exempted financial advisors of Morgan Stanley Wealth Management who have sold Class A Redeemable Units in the Partnership. 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 Partnership. The cost of retaining the Administrator is allocated among the pools operated by the General Partner, including the Partnership.

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	2. Basis of Presentation and Summary of Significant Accounting Policies: The accompanying financial statements and accompanying notes are unaudited but, in the opinion of the General Partner, include all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the Partnership’s financial condition at June 30, 2018, the results of its operations for the three and six months ended June 30, 2018 and 2017 and changes in partners’ capital for the six months ended June 30, 2018 and 2017. These financial statements present the results for interim periods and do not include all disclosures normally provided in annual financial statements. These financial statements should be read together with the financial statements and notes included in the Partnership’s Annual Report on Form 10-K Due to the nature of commodity trading, the results of operations for the interim periods presented should not be considered indicative of the results that may be expected for the entire year. Use of Estimates. Profit Allocation Statement of Cash Flows. “Statement of Cash Flows.” Partnership’s Investment in the Funds. Partnership’s/Funds’ Derivative Investments. first-in, first-out The Partnership/Funds do not isolate the portion of the results of operations arising from the effect of changes in foreign exchange rates on investments due to fluctuations from changes in market prices of investments held. Such fluctuations are included in total trading results in the Partnership’s/Funds’ Statements of Income and Expenses. Partnership’s Cash Income Taxes. “Income Taxes,” “more-likely-than-not” more-likely-than-not Investment Company Status. 2013-08 , “Financial Services — Investment Companies (Topic 946): Amendments to the Scope, Measurement and Disclosure Requirements” Net Income (Loss) per Redeemable Unit. Financial Services — Investment Companies There have been no material changes with respect to the Partnership’s critical accounting policies as reported in the Partnership’s Annual Report on Form 10-K for the year ended December 31, 2017.

Financial Highlights

Financial Highlights	6 Months Ended
	Jun. 30, 2018
Investment Company [Abstract]
Financial Highlights	3. Financial Highlights: Financial highlights for the limited partner class as a whole for the three and six months ended June 30, 2018 and 2017 were as follows: Class A Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Per Redeemable Unit Performance (for a unit outstanding throughout the period):* Net realized and unrealized gains (losses) $ 38.96 $ (14.93 ) $ 69.24 $ (27.57 ) Net investment loss (22.74 ) (17.93 ) (39.85 ) (35.47 ) Increase (decrease) for the period 16.22 (32.86 ) 29.39 (63.04 ) Net asset value per Redeemable Unit, beginning of period 1,278.81 1,305.52 1,265.64 1,335.70 Net asset value per Redeemable Unit, end of period $ 1,295.03 $ 1,272.66 $ 1,295.03 $ 1,272.66 Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Ratios to Average Limited Partners’ Capital:** Net investment loss*** (5.6) % (5.7) % (5.7) % (5.6) % Operating expenses 6.7 % 6.4 % 6.6 % 6.2 % Incentive fees 0.5 % - % 0.6 % - % Total expenses 7.2 % 6.4 % 7.2 % 6.2 % Total return: Total return before incentive fees 1.8 % (2.5) % 2.9 % (4.7) % Incentive fees (0.5) % - % (0.6) % - % Total return after incentive fees 1.3 % (2.5) % 2.3 % (4.7) % * Net investment loss per Redeemable Unit is calculated by dividing the interest income less total expenses by the average number of Redeemable Units outstanding during the period. The net realized and unrealized gains (losses) per Redeemable Unit is a balancing amount necessary to reconcile the change in net asset value per Redeemable Unit with the other per unit information. ** Annualized (except for incentive fees, if applicable) *** Interest income, including interest income allocated from the Funds, less total expenses, net of expense reimbursements. The above ratios and total return may vary for individual investors based on the timing of capital transactions during the period. Additionally, these ratios are calculated for the limited partner class using the limited partners’ share of income, expenses and average partners’ capital of the Partnership and include the income and expenses allocated from the Funds.

Trading Activities

Trading Activities	6 Months Ended
	Jun. 30, 2018
Brokers and Dealers [Abstract]
Trading Activities	4. Trading Activities: The Partnership was formed for the purpose of trading contracts in a variety of commodity interests, including derivative financial instruments and derivative commodity instruments. The results of the Partnership’s trading activities are shown in the Statements of Income and Expenses. The Partnership also invests certain of its assets through a “master/feeder” structure. The Partnership’s pro-rata The futures brokerage account agreements with MS&Co. give the Partnership and the Funds the legal right to net unrealized gains and losses on open futures, forward and option contracts in the Statements of Financial Condition. The Partnership and the Funds net, for financial reporting purposes, the unrealized gains and losses on open futures and open forward contracts in the Statements of Financial Condition, as the criteria under ASC 210-20, Balance Sheet All of the commodity interests owned directly by the Partnership are held for trading purposes. All of the commodity interests owned by the Funds are held for trading purposes. The monthly average number of futures contracts traded directly by the Partnership during the three and six months ended June 30, 2018 were 4,285 and 4,258, respectively. The monthly average number of metals forward contracts traded directly by the Partnership during the three and six months ended June 30, 2018 were 1,272 and 818, respectively. The monthly average number of option contracts traded directly by the Partnership during the three and six months ended June 30, 2018 were 1,441 and 1,103, respectively. There were no direct investments at December 31, 2017. Trading and transaction fees are based on the number of trades executed by the Advisors for the Partnership/Funds and the Partnership’s respective percentage ownership of each Fund. All clearing fees paid to MS&Co. are borne directly by the Partnership for its direct trading. In addition, clearing fees are borne by the Funds for indirect trading and allocated to the Funds’ limited partners/members, including the Partnership. The following table summarizes the gross and net amounts recognized relating to assets and liabilities of the Partnership’s derivatives and their offsetting subject to master netting arrangements or similar agreements as of June 30, 2018. Gross Amounts Offset in the Amounts Presented in the Gross Amounts Not Offset in the Statements of Financial Condition Gross Statements of Statements of Cash Collateral Amounts Financial Financial Financial Received/ June 30, 2018 Recognized Condition Condition Instruments Pledged* Net Amount Assets MS&Co. Futures $ 3,377,038 $ (3,377,038 ) $ - $ - $ - $ - Forwards 2,819,788 (2,819,788 ) - - - - Total assets $ 6,196,826 $ (6,196,826 ) $ - $ - $ - $ - Liabilities MS&Co. Futures $ (3,570,150 ) $ 3,377,038 $ (193,112 ) $ - $ - $ (193,112) Forwards (2,871,687 ) 2,819,788 (51,899 ) - - (51,899) Total liabilities $ (6,441,837 ) $ 6,196,826 $ (245,011 ) $ - $ - $ (245,011) Net fair value $ (245,011) * * In the event of default by the Partnership, MS&Co., the Partnership’s commodity futures broker and the sole counterparty to the Partnership’s non-exchange-traded The following table indicates the gross fair values of derivative instruments of futures, forward and option contracts held directly by the Partnership as separate assets and liabilities as of June 30, 2018. As of December 31, 2017, no derivative instruments were held directly by the Partnership. June 30, 2018 Assets Futures Contracts Energy $ 2,469,180 Grains 414,541 Livestock 63,310 Metals 62,444 Softs 367,563 Total unrealized appreciation on open futures contracts 3,377,038 Liabilities Futures Contracts Currencies (42,984) Energy (2,096,896) Grains (1,123,087) Livestock (32,610) Metals (177,867) Softs (96,706) Total unrealized depreciation on open futures contracts (3,570,150) Net unrealized depreciation on open futures contracts $ (193,112) * Assets Forward Contracts Metals $ 2,819,788 Total unrealized appreciation on open forward contracts 2,819,788 Liabilities Forward Contracts Metals (2,871,687) Total unrealized depreciation on open forward contracts (2,871,687) Net unrealized depreciation on open forward contracts $ (51,899) ** Assets Options Purchased Energy $ 150 Grains 48,288 Metals 771,395 Softs 12,775 Total options purchased 832,608 *** Liabilities Options Written Energy (23,686) Grains (303,563) Metals (1,045,054) Total options written $ (1,372,303) **** * This amount is in “Net unrealized depreciation on open futures contracts” in the Statements of Financial Condition. ** This amount is in “Net unrealized depreciation on open forward contracts” in the Statements of Financial Condition. *** This amount is in “Options purchased, at fair value” in the Statements of Financial Condition. **** This amount is in “Options written, at fair value” in the Statements of Financial Condition. The following table indicates the trading gains and losses, by market sector, on derivative instruments traded directly by the Partnership for the three and six months ended June 30, 2018. During the three and six months ended June 30, 2017, no derivative instruments were traded directly by the Partnership. Sector Three Months Ended Six Months Ended Currencies $ (314,000) $ (286,471) Energy 2,261,423 2,856,161 Grains (600,462) (443,885) Interest Rates Non-U.S. - 17,430 Livestock 141,540 324,559 Metals 412,631 402,254 Softs 621,826 260,565 Total $ 2,522,958 ***** $ 3,130,613 ***** ***** This amount is included in “Total trading results” in the Statements of Income and Expenses.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	5. Fair Value Measurements: Partnership’s and the Funds’ Fair Value Measurements 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 The Partnership and the Funds consider prices for commodity futures, 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 June 30, 2018 Total Level 1 Level 2 Level 3 Assets Futures $ 3,377,038 $ 3,377,038 $ - $ - Forwards 2,819,788 - 2,819,788 - Options purchased 832,608 832,608 - - Total assets $ 7,029,434 $ 4,209,646 $ 2,819,788 $ - Liabilities Futures $ 3,570,150 $ 3,570,150 $ - $ - Forwards 2,871,687 - 2,871,687 - Options written 1,372,303 1,372,303 - - Total liabilities $ 7,814,140 $ 4,942,453 $ 2,871,687 $ -

Investment in the Funds

Investment in the Funds	6 Months Ended
	Jun. 30, 2018
Schedule of Investments [Abstract]
Investment in the Funds	6. Investment in the Funds: On February 1, 2013, the Partnership allocated substantially all of its capital to MB Master, a limited partnership organized under the partnership laws of the State of Delaware. MB Master permits accounts managed by Aventis using its Aventis Diversified Commodity Strategy, a proprietary, discretionary trading system, to invest together in one trading vehicle. The General Partner is also the general partner of MB Master. Individual and pooled accounts currently managed by Aventis, including the Partnership, are permitted to be limited partners of MB Master. The General Partner and Aventis believe that trading through this master/feeder structure should promote efficiency and economy in the trading process. On January 1, 2018, the Partnership allocated a portion of its assets to Harbour Square Master, a limited liability company organized under the limited liability company laws of the State of Delaware. Harbour Square Master permits accounts managed by Harbour Square using Harbour Square’s Discretionary Energy Program, a proprietary, discretionary trading system, to invest together in one trading vehicle. The General Partner is also the trading manager of Harbour Square Master. Individual and pooled accounts currently managed by Harbour Square, including the Partnership, are permitted to be members of Harbour Square Master. The Trading Manager and Harbour Square believe that trading through this structure promotes efficiency and economy in the trading process. The Trading Manager and Harbour Square have agreed that Harbour Square will trade the Fund’s assets allocated to Harbour Square Master at a level that is up to 1.5 times the amount of the assets allocated. The amount of leverage may be changed in the future. The General Partner is not aware of any material changes to the trading programs discussed above during the fiscal quarter ended June 30, 2018. The Funds’ and the Partnership’s trading of futures, forward and option contracts, as applicable, on commodities is done primarily on U.S. and foreign commodity exchanges. The Funds and the Partnership engage in such trading through commodity brokerage accounts maintained with MS&Co. Generally, a limited partner/member in the Funds withdraws all or part of its capital contribution and undistributed profits, if any, from the Funds as of the end of any month (the “Redemption Date”) after a request has been made to the General Partner/Trading Manager at least three days in advance of the Redemption Date. Such withdrawals are classified as a liability when the limited partner/member elects to redeem and informs the Funds. However, a limited partner/member may request a withdrawal as of the end of any day if such request is received by the General Partner/Trading Manager at least three days in advance of the proposed withdrawal day. Management fees, General Partner fees, ongoing selling agent fees and incentive fees are charged at the Partnership level. All clearing fees paid to MS&Co. are borne directly by the Partnership for its direct trading. In addition, clearing fees are borne by the Funds and allocated to the Funds’ limited partners, including the Partnership. Professional fees are borne by the Funds and allocated to the Partnership, and also charged directly at the Partnership level. At June 30, 2018, the Partnership owned approximately 48.6% of MB Master and 57.9% of Harbour Square Master. Prior to the close of business on December 31, 2017, the Partnership owned approximately 89.3% of MB Master. It is the Partnership’s intention to continue to invest in the Funds. The performance of the Partnership is directly affected by the performance of the Funds. Expenses to investors as a result of the investment in the Funds are approximately the same as they would be if the Partnership traded directly and redemption rights are not affected. Summarized information reflecting the total assets, liabilities and partners’ capital of the Funds is shown in the following tables: June 30, 2018 Total Assets Total Liabilities Total Capital MB Master $ 18,290,522 $ 1,283,729 $ 17,006,793 Harbour Square Master 26,812,602 218,340 26,594,262 December 31, 2017 Total Assets Total Liabilities Total Capital MB Master $ 87,348,208 $ 9,978,681 $ 77,369,527 Summarized information reflecting the net investment income (loss), total trading results and net income (loss) of the Funds is shown in the following tables: For the three months ended June 30, 2018 Net Investment Total Trading Results Net Income (Loss) MB Master $ (6,603) $ (976,916) $ (983,519) Harbour Square Master 76,151 9,930 86,081 For the six months ended June 30, 2018 Net Investment Income (Loss) Total Trading Results Net Income (Loss) MB Master $ (1,070) $ 45,396 $ 44,326 Harbour Square Master 141,423 876,061 1,017,484 For the three months ended June 30, 2017 Net Investment Income (Loss) Total Trading Results Net Income (Loss) MB Master $ (214,753) $ (1,122,688) $ (1,337,441) For the six months ended June 30, 2017 Net Investment Income (Loss) Total Trading Results Net Income (Loss) MB Master $ (407,668) $ (2,258,372) $ (2,666,040) Summarized information reflecting the Partnership’s investments in and the Partnership’s pro-rata share of the results of operations of the Funds is shown in the following table: June 30, 2018 For the three months ended June 30, 2018 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted MB Master 12.91 % $ 8,270,055 $ (447,089 ) $ 64,826 $ 8,211 $ (520,126 ) Commodity Portfolio Monthly Harbour Square Master 24.08 % 15,422,221 51,813 12,081 10,070 29,662 Commodity Portfolio Monthly Total $ 23,692,276 $ (395,276 ) $ 76,907 $ 18,281 $ (490,464 ) June 30, 2018 For the six months ended June 30, 2018 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted MB Master 12.91 % $ 8,270,055 $ 76,657 $ 114,044 $ 16,609 $ (53,996 ) Commodity Portfolio Monthly Harbour Square Master 24.08 % 15,422,221 648,037 21,312 20,766 605,959 Commodity Portfolio Monthly Total $ 23,692,276 $ 724,694 $ 135,356 $ 37,375 $ 551,963 December 31, 2017 For the three months ended June 30, 2017 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted MB Master 99.95 % $ 69,682,811 $ (804,325 ) $ 374,658 $ 13,960 $ (1,192,943 ) Commodity Portfolio Monthly Total $ 69,682,811 $ (804,325 ) $ 374,658 $ 13,960 $ (1,192,943 ) December 31, 2017 For the six months ended June 30, 2017 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted MB Master 99.95 % $ 69,682,811 $ (1,703,881 ) $ 685,656 $ 28,108 $ (2,417,645 ) Commodity Portfolio Monthly Total $ 69,682,811 $ (1,703,881 ) $ 685,656 $ 28,108 $ (2,417,645 )

Financial Instrument Risks

Financial Instrument Risks	6 Months Ended
	Jun. 30, 2018
Investments, All Other Investments [Abstract]
Financial Instrument Risks	7. Financial Instrument Risks: In the normal course of business, the Partnership and the Funds are parties to financial instruments with off-balance-sheet over-the-counter Futures Contracts. Forward Foreign Currency Contracts. London Metals Exchange Forward Contracts. Options. marked-to-market marked-to-market As both a buyer and seller of options, the Partnership/Funds pay or receive a premium at the outset and then bear the risk of unfavorable changes in the price of the contract underlying the option. Written options expose the Partnership/Funds to potentially unlimited liability; for purchased options, the risk of loss is limited to the premiums paid. Certain written put options permit cash settlement and do not require the option holder to own the reference asset. The Partnership/Funds do not consider these contracts to be guarantees. Futures-style options. Market risk is the potential for changes in the value of the financial instruments traded by the Partnership/Funds 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 Partnership and the Funds are exposed to market risk equal to the value of the futures and forward contracts held 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 Partnership’s/Funds’ 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 Partnership’s/Funds’ risk of loss is reduced through the use of legally enforceable master netting agreements with counterparties that permit the Partnership/Funds to offset unrealized gains and losses and other assets and liabilities with such counterparties upon the occurrence of certain events. The Partnership/Funds have credit risk and concentration risk, as MS&Co., an MS&Co. affiliate or JPMorgan are counterparties or brokers with respect to the Partnership’s/Funds’ assets. Credit risk with respect to exchange-traded instruments is reduced to the extent that, through MS&Co. or an MS&Co. affiliate, the Partnership’s/Funds’ counterparty is an exchange or clearing organization. The General Partner monitors and attempts to mitigate the Partnership’s/Funds’ 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 Partnership/Funds 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 financial instruments mature within one year of the inception date. However, due to the nature of Partnership’s/Funds’ business, these instruments may not be held to maturity. The risk to the limited partners that have purchased Redeemable Units is limited to the amount of their share of the Partnership’s net assets and undistributed profits. This limited liability is a result of the organization of the Partnership as a limited partnership under New York law. In the ordinary course of business, the Partnership/Funds enter into contracts and agreements that contain various representations and warranties and which provide general indemnifications. The Partnership’s/Funds’ maximum exposure under these arrangements cannot be determined, as this could include future claims that have not yet been made against the Partnership/Funds. The Partnership/Funds consider the risk of any future obligation relating to these indemnifications to be remote.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	8. Subsequent Events: The General Partner evaluates events that occur after the balance sheet date but before and up until financial statements are available to be issued. The General Partner has assessed the subsequent events through the date the financial statements were issued and has determined that, other than disclosed below, there were no subsequent events requiring adjustment to or disclosure in the financial statements. Class D Redeemable Units were first issued on July 1, 2018.

Basis of Presentation and Sum16

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates.
Profit Allocation	Profit Allocation
Statement of Cash Flows	Statement of Cash Flows. “Statement of Cash Flows.”
Partnership's Investment in the Funds	Partnership’s Investment in the Funds.
Partnership'/Funds' Derivative Investments	Partnership’s/Funds’ Derivative Investments. first-in, first-out The Partnership/Funds do not isolate the portion of the results of operations arising from the effect of changes in foreign exchange rates on investments due to fluctuations from changes in market prices of investments held. Such fluctuations are included in total trading results in the Partnership’s/Funds’ Statements of Income and Expenses.
Partnership's Cash	Partnership’s Cash
Income Taxes	Income Taxes. “Income Taxes,” “more-likely-than-not” more-likely-than-not
Investment Company Status	Investment Company Status. 2013-08 , “Financial Services — Investment Companies (Topic 946): Amendments to the Scope, Measurement and Disclosure Requirements”
Net Income (Loss) per Redeemable Unit	Net Income (Loss) per Redeemable Unit. Financial Services — Investment Companies

Financial Highlights (Tables)

Financial Highlights (Tables)	6 Months Ended
	Jun. 30, 2018
Investment Company [Abstract]
Financial Highlights	Financial highlights for the limited partner class as a whole for the three and six months ended June 30, 2018 and 2017 were as follows: Class A Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Per Redeemable Unit Performance (for a unit outstanding throughout the period):* Net realized and unrealized gains (losses) $ 38.96 $ (14.93 ) $ 69.24 $ (27.57 ) Net investment loss (22.74 ) (17.93 ) (39.85 ) (35.47 ) Increase (decrease) for the period 16.22 (32.86 ) 29.39 (63.04 ) Net asset value per Redeemable Unit, beginning of period 1,278.81 1,305.52 1,265.64 1,335.70 Net asset value per Redeemable Unit, end of period $ 1,295.03 $ 1,272.66 $ 1,295.03 $ 1,272.66 Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Ratios to Average Limited Partners’ Capital:** Net investment loss*** (5.6) % (5.7) % (5.7) % (5.6) % Operating expenses 6.7 % 6.4 % 6.6 % 6.2 % Incentive fees 0.5 % - % 0.6 % - % Total expenses 7.2 % 6.4 % 7.2 % 6.2 % Total return: Total return before incentive fees 1.8 % (2.5) % 2.9 % (4.7) % Incentive fees (0.5) % - % (0.6) % - % Total return after incentive fees 1.3 % (2.5) % 2.3 % (4.7) % * Net investment loss per Redeemable Unit is calculated by dividing the interest income less total expenses by the average number of Redeemable Units outstanding during the period. The net realized and unrealized gains (losses) per Redeemable Unit is a balancing amount necessary to reconcile the change in net asset value per Redeemable Unit with the other per unit information. ** Annualized (except for incentive fees, if applicable) *** Interest income, including interest income allocated from the Funds, less total expenses, net of expense reimbursements.

Trading Activities (Tables)

Trading Activities (Tables) - MB Master Fund L.P. [Member]	6 Months Ended
	Jun. 30, 2018
Summary of Valuation of Master's Investments	The following table summarizes the gross and net amounts recognized relating to assets and liabilities of the Partnership’s derivatives and their offsetting subject to master netting arrangements or similar agreements as of June 30, 2018. Gross Amounts Offset in the Amounts Presented in the Gross Amounts Not Offset in the Statements of Financial Condition Gross Statements of Statements of Cash Collateral Amounts Financial Financial Financial Received/ June 30, 2018 Recognized Condition Condition Instruments Pledged* Net Amount Assets MS&Co. Futures $ 3,377,038 $ (3,377,038 ) $ - $ - $ - $ - Forwards 2,819,788 (2,819,788 ) - - - - Total assets $ 6,196,826 $ (6,196,826 ) $ - $ - $ - $ - Liabilities MS&Co. Futures $ (3,570,150 ) $ 3,377,038 $ (193,112 ) $ - $ - $ (193,112) Forwards (2,871,687 ) 2,819,788 (51,899 ) - - (51,899) Total liabilities $ (6,441,837 ) $ 6,196,826 $ (245,011 ) $ - $ - $ (245,011) Net fair value $ (245,011) * * In the event of default by the Partnership, MS&Co., the Partnership’s commodity futures broker and the sole counterparty to the Partnership’s non-exchange-traded
Gross Fair Values of Derivative Instruments of Futures and Option Contracts, as Separate Assets and Liabilities	The following table indicates the gross fair values of derivative instruments of futures, forward and option contracts held directly by the Partnership as separate assets and liabilities as of June 30, 2018. As of December 31, 2017, no derivative instruments were held directly by the Partnership. June 30, 2018 Assets Futures Contracts Energy $ 2,469,180 Grains 414,541 Livestock 63,310 Metals 62,444 Softs 367,563 Total unrealized appreciation on open futures contracts 3,377,038 Liabilities Futures Contracts Currencies (42,984) Energy (2,096,896) Grains (1,123,087) Livestock (32,610) Metals (177,867) Softs (96,706) Total unrealized depreciation on open futures contracts (3,570,150) Net unrealized depreciation on open futures contracts $ (193,112) * Assets Forward Contracts Metals $ 2,819,788 Total unrealized appreciation on open forward contracts 2,819,788 Liabilities Forward Contracts Metals (2,871,687) Total unrealized depreciation on open forward contracts (2,871,687) Net unrealized depreciation on open forward contracts $ (51,899) ** Assets Options Purchased Energy $ 150 Grains 48,288 Metals 771,395 Softs 12,775 Total options purchased 832,608 *** Liabilities Options Written Energy (23,686) Grains (303,563) Metals (1,045,054) Total options written $ (1,372,303) **** * This amount is in “Net unrealized depreciation on open futures contracts” in the Statements of Financial Condition. ** This amount is in “Net unrealized depreciation on open forward contracts” in the Statements of Financial Condition. *** This amount is in “Options purchased, at fair value” in the Statements of Financial Condition. **** This amount is in “Options written, at fair value” in the Statements of Financial Condition.
Trading Gains and Losses, by Market Sector, on Derivative Instruments	The following table indicates the trading gains and losses, by market sector, on derivative instruments traded directly by the Partnership for the three and six months ended June 30, 2018. During the three and six months ended June 30, 2017, no derivative instruments were traded directly by the Partnership. Sector Three Months Ended Six Months Ended Currencies $ (314,000) $ (286,471) Energy 2,261,423 2,856,161 Grains (600,462) (443,885) Interest Rates Non-U.S. - 17,430 Livestock 141,540 324,559 Metals 412,631 402,254 Softs 621,826 260,565 Total $ 2,522,958 ***** $ 3,130,613 ***** ***** This amount is included in “Total trading results” in the Statements of Income and Expenses.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2018
MB Master Fund L.P. [Member]
Derivative Instrument Fair Value Based on Hierarchy	June 30, 2018 Total Level 1 Level 2 Level 3 Assets Futures $ 3,377,038 $ 3,377,038 $ - $ - Forwards 2,819,788 - 2,819,788 - Options purchased 832,608 832,608 - - Total assets $ 7,029,434 $ 4,209,646 $ 2,819,788 $ - Liabilities Futures $ 3,570,150 $ 3,570,150 $ - $ - Forwards 2,871,687 - 2,871,687 - Options written 1,372,303 1,372,303 - - Total liabilities $ 7,814,140 $ 4,942,453 $ 2,871,687 $ -

Investment in the Funds (Tables

Investment in the Funds (Tables)	6 Months Ended
	Jun. 30, 2018
Schedule of Investments [Abstract]
Assets, Liabilities and Partners' Capital of Funds	Summarized information reflecting the total assets, liabilities and partners’ capital of the Funds is shown in the following tables: June 30, 2018 Total Assets Total Liabilities Total Capital MB Master $ 18,290,522 $ 1,283,729 $ 17,006,793 Harbour Square Master 26,812,602 218,340 26,594,262 December 31, 2017 Total Assets Total Liabilities Total Capital MB Master $ 87,348,208 $ 9,978,681 $ 77,369,527
Net Investment Income (Loss), Trading Results and Net Income (Loss) of Funds	Summarized information reflecting the net investment income (loss), total trading results and net income (loss) of the Funds is shown in the following tables: For the three months ended June 30, 2018 Net Investment Total Trading Results Net Income (Loss) MB Master $ (6,603) $ (976,916) $ (983,519) Harbour Square Master 76,151 9,930 86,081 For the six months ended June 30, 2018 Net Investment Income (Loss) Total Trading Results Net Income (Loss) MB Master $ (1,070) $ 45,396 $ 44,326 Harbour Square Master 141,423 876,061 1,017,484 For the three months ended June 30, 2017 Net Investment Income (Loss) Total Trading Results Net Income (Loss) MB Master $ (214,753) $ (1,122,688) $ (1,337,441) For the six months ended June 30, 2017 Net Investment Income (Loss) Total Trading Results Net Income (Loss) MB Master $ (407,668) $ (2,258,372) $ (2,666,040)
Partnership's Investments in, and Partnership's Pro Rata Share of Results of Operations of Funds	Summarized information reflecting the Partnership’s investments in and the Partnership’s pro-rata share of the results of operations of the Funds is shown in the following table: June 30, 2018 For the three months ended June 30, 2018 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted MB Master 12.91 % $ 8,270,055 $ (447,089 ) $ 64,826 $ 8,211 $ (520,126 ) Commodity Portfolio Monthly Harbour Square Master 24.08 % 15,422,221 51,813 12,081 10,070 29,662 Commodity Portfolio Monthly Total $ 23,692,276 $ (395,276 ) $ 76,907 $ 18,281 $ (490,464 ) June 30, 2018 For the six months ended June 30, 2018 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted MB Master 12.91 % $ 8,270,055 $ 76,657 $ 114,044 $ 16,609 $ (53,996 ) Commodity Portfolio Monthly Harbour Square Master 24.08 % 15,422,221 648,037 21,312 20,766 605,959 Commodity Portfolio Monthly Total $ 23,692,276 $ 724,694 $ 135,356 $ 37,375 $ 551,963 December 31, 2017 For the three months ended June 30, 2017 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted MB Master 99.95 % $ 69,682,811 $ (804,325 ) $ 374,658 $ 13,960 $ (1,192,943 ) Commodity Portfolio Monthly Total $ 69,682,811 $ (804,325 ) $ 374,658 $ 13,960 $ (1,192,943 ) December 31, 2017 For the six months ended June 30, 2017 % of Expenses Net Partners’ Fair Income Clearing Professional Income Investment Redemptions Funds Capital Value (Loss) Fees Fees (Loss) Objective Permitted MB Master 99.95 % $ 69,682,811 $ (1,703,881 ) $ 685,656 $ 28,108 $ (2,417,645 ) Commodity Portfolio Monthly Total $ 69,682,811 $ (1,703,881 ) $ 685,656 $ 28,108 $ (2,417,645 )

Organization - Additional Infor

Organization - Additional Information (Detail) - shares	Sep. 06, 2005	Jun. 30, 2018
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Number of units sold during initial offering period	11,925
Morgan Stanley Wealth Management [Member] | Class A [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ongoing selling agent fee		2.00%
Morgan Stanley Wealth Management [Member] | Capital Unit Class D [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ongoing selling agent fee		0.75%

Basis of Presentation and Sum22

Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Cash denominated in foreign currencies	$ 0	$ 155,357
Cost of foreign currencies	0	165,223
Restricted cash held for margin	4,452,352	$ 0
Uncertain tax position	$ 0
Open tax year	2014 2015 2016 2017

Financial Highlights - Financia

Financial Highlights - Financial Highlights for Limited Partner Class (Detail) - Class A [Member] - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net asset value per Redeemable Unit, beginning of period			$ 1,265.64
Net asset value per Redeemable Unit, end of period	$ 1,295.03		1,295.03
Limited Partners [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	38.96	$ (14.93)	69.24	$ (27.57)
Net investment loss	(22.74)	(17.93)	(39.85)	(35.47)
Increase (decrease) for the period	16.22	(32.86)	29.39	(63.04)
Net asset value per Redeemable Unit, beginning of period	1,278.81	1,305.52	1,265.64	1,335.70
Net asset value per Redeemable Unit, end of period	$ 1,295.03	$ 1,272.66	$ 1,295.03	$ 1,272.66
Ratios to Average Limited Partners' Capital:
Net investment loss	(5.60%)	(5.70%)	(5.70%)	(5.60%)
Operating expenses	6.70%	6.40%	6.60%	6.20%
Incentive fees	0.50%		0.60%
Total expenses	7.20%	6.40%	7.20%	6.20%
Total return:
Total return before incentive fees	1.80%	(2.50%)	2.90%	(4.70%)
Incentive fees	(0.50%)		(0.60%)
Total return after incentive fees	1.30%	(2.50%)	2.30%	(4.70%)

Trading Activities - Additional

Trading Activities - Additional Information (Detail)	3 Months Ended	6 Months Ended
	Jun. 30, 2018Contractshares	Jun. 30, 2018Contractshares	Dec. 31, 2017USD ($)
Derivative [Line Items]
Monthly average number of futures contracts traded	4,285	4,258
Monthly average number of metals forward contracts traded	1,272	818
Average number of options contracts traded | shares	1,441	1,103
Partnership [Member]
Derivative [Line Items]
Direct investments | $			$ 0

Trading Activities - Summary of

Trading Activities - Summary of Valuation of Master's Investments (Detail)	Jun. 30, 2018USD ($)
Forwards [Member]
Derivative [Line Items]
Net Amounts Presented in the Statements of Financial Condition, Liabilities	$ (51,899)
MS&Co. [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	6,196,826
Gross Amounts Offset in the Statements of Financial Condition, Assets	(6,196,826)
Net Amounts Presented in the Statements of Financial Condition, Assets	0
Financial Instruments, Assets	0
Collateral Received/Pledged, Assets	0
Net Amount, Assets	0
Gross Amounts Recognized, Liabilities	(6,441,837)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	6,196,826
Net Amounts Presented in the Statements of Financial Condition, Liabilities	(245,011)
Financial Instruments, Liabilities	0
Collateral Received/Pledged, Liabilities	0
Net Amount, Liabilities	(245,011)
MS&Co. [Member] | Futures [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	3,377,038
Gross Amounts Offset in the Statements of Financial Condition, Assets	(3,377,038)
Net Amounts Presented in the Statements of Financial Condition, Assets	0
Financial Instruments, Assets	0
Collateral Received/Pledged, Assets	0
Net Amount, Assets	0
Gross Amounts Recognized, Liabilities	(3,570,150)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	3,377,038
Net Amounts Presented in the Statements of Financial Condition, Liabilities	(193,112)
Financial Instruments, Liabilities	0
Collateral Received/Pledged, Liabilities	0
Net Amount, Liabilities	(193,112)
MS&Co. [Member] | Forwards [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	2,819,788
Gross Amounts Offset in the Statements of Financial Condition, Assets	(2,819,788)
Net Amounts Presented in the Statements of Financial Condition, Assets	0
Financial Instruments, Assets	0
Collateral Received/Pledged, Assets	0
Net Amount, Assets	0
Gross Amounts Recognized, Liabilities	(2,871,687)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	2,819,788
Net Amounts Presented in the Statements of Financial Condition, Liabilities	(51,899)
Financial Instruments, Liabilities	0
Collateral Received/Pledged, Liabilities	0
Net Amount, Liabilities	(51,899)
MB Master Fund L.P. [Member]
Derivative [Line Items]
Net fair value	$ (245,011)

Trading Activities - Gross Fair

Trading Activities - Gross Fair Values of Derivative Instruments of Futures and Option Contracts, as Separate Assets and Liabilities (Detail)	Jun. 30, 2018USD ($)
Forwards [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	$ 2,819,788
Total unrealized depreciation on open contracts	(2,871,687)
Net unrealized appreciation (depreciation) on open contracts	(51,899)
Metals [Member] | Forwards [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	2,819,788
Total unrealized depreciation on open contracts	(2,871,687)
Futures [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(193,112)
MB Master Fund L.P. [Member] | Forwards [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	2,819,788
Total unrealized depreciation on open contracts	(2,871,687)
Net unrealized appreciation (depreciation) on open contracts	(51,899)
MB Master Fund L.P. [Member] | Futures [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	3,377,038
Total unrealized depreciation on open contracts	(3,570,150)
Net unrealized appreciation (depreciation) on open contracts	(193,112)
MB Master Fund L.P. [Member] | Futures [Member] | Currencies [Member]
Derivative [Line Items]
Total unrealized depreciation on open contracts	(42,984)
MB Master Fund L.P. [Member] | Futures [Member] | Energy [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	2,469,180
Total unrealized depreciation on open contracts	(2,096,896)
MB Master Fund L.P. [Member] | Futures [Member] | Grains [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	414,541
Total unrealized depreciation on open contracts	(1,123,087)
MB Master Fund L.P. [Member] | Futures [Member] | Livestock [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	63,310
Total unrealized depreciation on open contracts	(32,610)
MB Master Fund L.P. [Member] | Futures [Member] | Metals [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	62,444
Total unrealized depreciation on open contracts	(177,867)
MB Master Fund L.P. [Member] | Futures [Member] | Softs [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	367,563
Total unrealized depreciation on open contracts	(96,706)
MB Master Fund L.P. [Member] | Option [Member] | Option Purchased [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	832,608
MB Master Fund L.P. [Member] | Option [Member] | Option Purchased [Member] | Energy [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	150
MB Master Fund L.P. [Member] | Option [Member] | Option Purchased [Member] | Grains [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	48,288
MB Master Fund L.P. [Member] | Option [Member] | Option Purchased [Member] | Metals [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	771,395
MB Master Fund L.P. [Member] | Option [Member] | Option Purchased [Member] | Softs [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	12,775
MB Master Fund L.P. [Member] | Option [Member] | Options Written [Member]
Derivative [Line Items]
Total unrealized depreciation on open contracts	(1,372,303)
MB Master Fund L.P. [Member] | Option [Member] | Options Written [Member] | Energy [Member]
Derivative [Line Items]
Total unrealized depreciation on open contracts	(23,686)
MB Master Fund L.P. [Member] | Option [Member] | Options Written [Member] | Grains [Member]
Derivative [Line Items]
Total unrealized depreciation on open contracts	(303,563)
MB Master Fund L.P. [Member] | Option [Member] | Options Written [Member] | Metals [Member]
Derivative [Line Items]
Total unrealized depreciation on open contracts	$ (1,045,054)

Trading Activities - Trading Ga

Trading Activities - Trading Gains and Losses, by Market Sector, on Derivative Instruments (Detail) - MB Master Fund L.P. [Member] - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Derivative [Line Items]
Trading gains and losses	$ 2,522,958	$ 3,130,613
Currencies [Member]
Derivative [Line Items]
Trading gains and losses	(314,000)	(286,471)
Energy [Member]
Derivative [Line Items]
Trading gains and losses	2,261,423	2,856,161
Grains [Member]
Derivative [Line Items]
Trading gains and losses	(600,462)	(443,885)
Interest Rates Non-U.S. [Member]
Derivative [Line Items]
Trading gains and losses		17,430
Livestock [Member]
Derivative [Line Items]
Trading gains and losses	141,540	324,559
Metals [Member]
Derivative [Line Items]
Trading gains and losses	412,631	402,254
Softs [Member]
Derivative [Line Items]
Trading gains and losses	$ 621,826	$ 260,565

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Transfers of assets between Level 1 and Level 2	$ 0	$ 0
Transfers of liabilities between Level 1 and Level 2	$ 0	$ 0

Fair Value Measurements - Deriv

Fair Value Measurements - Derivative Instrument Fair Value Based on Hierarchy (Detail) - MB Master Fund L.P. [Member]	Jun. 30, 2018USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	$ 7,029,434
Derivative liabilities	7,814,140
Futures [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	3,377,038
Derivative liabilities	3,570,150
Forwards [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	2,819,788
Derivative liabilities	2,871,687
Option [Member] | Option Purchased [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	832,608
Option [Member] | Options Written [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	1,372,303
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	4,209,646
Derivative liabilities	4,942,453
Level 1 [Member] | Futures [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	3,377,038
Derivative liabilities	3,570,150
Level 1 [Member] | Option [Member] | Option Purchased [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	832,608
Level 1 [Member] | Option [Member] | Options Written [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	1,372,303
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	2,819,788
Derivative liabilities	2,871,687
Level 2 [Member] | Forwards [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	2,819,788
Derivative liabilities	$ 2,871,687

Investment in the Funds - Addit

Investment in the Funds - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
CMF Harbour Square Master Fund LLC [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	1.5 times
Percentage owned by partnership	57.90%
MB Master Fund L.P. [Member]
Investment [Line Items]
Percentage owned by partnership	48.60%	89.30%

Investment in the Funds - Asset

Investment in the Funds - Assets, Liabilities and Partners' Capital of Funds (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Investment Holdings [Line Items]
Total Assets	$ 67,664,641	$ 77,823,076
Total Liabilities	3,616,725	8,107,302
Total Capital	64,047,916	69,715,774	$ 87,938,697	$ 103,433,044
MB Master Fund L.P. [Member]
Investment Holdings [Line Items]
Total Assets	18,290,522	87,348,208
Total Liabilities	1,283,729	9,978,681
Total Capital	17,006,793	$ 77,369,527
CMF Harbour Square Master Fund LLC [Member]
Investment Holdings [Line Items]
Total Assets	26,812,602
Total Liabilities	218,340
Total Capital	$ 26,594,262

Investment in the Funds - Net I

Investment in the Funds - Net Investment Income (Loss), Trading Results and Net Income (Loss) of Funds (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Investment Holdings [Line Items]
Net Investment Income (Loss)	$ (1,162,672)	$ (1,337,040)	$ (2,082,273)	$ (2,766,037)
Net income (loss)	862,109	(2,315,360)	1,575,160	(4,776,896)
MB Master Fund L.P. [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	(6,603)	(214,753)	(1,070)	(407,668)
Total Trading Results	(976,916)	(1,122,688)	45,396	(2,258,372)
Net income (loss)	(983,519)	$ (1,337,441)	44,326	$ (2,666,040)
CMF Harbour Square Master Fund LLC [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	76,151		141,423
Total Trading Results	9,930		876,061
Net income (loss)	$ 86,081		$ 1,017,484

Investment in the Funds - Partn

Investment in the Funds - Partnership's Investments in, and Partnership's Pro Rata Share of Results of Operations of Funds (Detail) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Investment Holdings [Line Items]
% of Partners' Capital		36.99%		36.99%		99.95%
Fair Value	[1]	$ 23,692,276		$ 23,692,276		$ 69,682,811
Expenses, Clearing Fees		333,832	$ 482,194	674,383	$ 1,016,293
Income (Loss)		$ 862,109	(2,315,360)	$ 1,575,160	(4,776,896)
MB Master Fund L.P. [Member]
Investment Holdings [Line Items]
% of Partners' Capital		12.91%		12.91%		99.95%
Fair Value		$ 8,270,055		$ 8,270,055		$ 69,682,811
Income (Loss)		(976,916)	(1,122,688)	45,396	(2,258,372)
Income (Loss)		$ (983,519)	(1,337,441)	$ 44,326	(2,666,040)
CMF Harbour Square Master Fund LLC [Member]
Investment Holdings [Line Items]
% of Partners' Capital		24.08%		24.08%
Fair Value		$ 15,422,221		$ 15,422,221
Income (Loss)		9,930		876,061
Income (Loss)		86,081		1,017,484
Investment In Funds [Member]
Investment Holdings [Line Items]
Fair Value		23,692,276		23,692,276		$ 69,682,811
Income (Loss)		(395,276)	(804,325)	724,694	(1,703,881)
Expenses, Clearing Fees		76,907	374,658	135,356	685,656
Expenses, Professional Fees		18,281	13,960	37,375	28,108
Income (Loss)		$ (490,464)	(1,192,943)	$ 551,963	(2,417,645)
Investment In Funds [Member] | MB Master Fund L.P. [Member] | Commodity [Member]
Investment Holdings [Line Items]
% of Partners' Capital		12.91%		12.91%		99.95%
Fair Value		$ 8,270,055		$ 8,270,055		$ 69,682,811
Income (Loss)		(447,089)	(804,325)	76,657	(1,703,881)
Expenses, Clearing Fees		64,826	374,658	114,044	685,656
Expenses, Professional Fees		8,211	13,960	16,609	28,108
Income (Loss)		$ (520,126)	$ (1,192,943)	$ (53,996)	$ (2,417,645)
Investment Objective		Commodity Portfolio	Commodity Portfolio	Commodity Portfolio	Commodity Portfolio
Redemptions Permitted		Monthly	Monthly	Monthly	Monthly
Investment In Funds [Member] | CMF Harbour Square Master Fund LLC [Member] | Commodity [Member]
Investment Holdings [Line Items]
% of Partners' Capital		24.08%		24.08%
Fair Value		$ 15,422,221		$ 15,422,221
Income (Loss)		51,813		648,037
Expenses, Clearing Fees		12,081		21,312
Expenses, Professional Fees		10,070		20,766
Income (Loss)		$ 29,662		$ 605,959
Investment Objective		Commodity Portfolio		Commodity Portfolio
Redemptions Permitted		Monthly		Monthly
[1]	Defined in Note 1.

Financial Instrument Risks - Ad

Financial Instrument Risks - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018
Risks and Uncertainties [Abstract]
Financial instruments maturity period	1 year