Emerging Cta Portfolio 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	CTA
Entity Registrant Name	EMERGING CTA PORTFOLIO LP
Entity Central Index Key	1,269,190
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Class A Redeemable Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		31,767.1410
Class Z Redeemable Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		21.2650

Statements of Financial Conditi

Statements of Financial Condition - USD ($)		Jun. 30, 2018	Dec. 31, 2017
Assets:
Investment in the Funds, at fair value	[1]	$ 27,048,884	$ 5,132,400
Redemptions receivable from the Funds		650,093	2,272,620
Equity in trading account:
Unrestricted cash		9,690,478	34,088,125
Restricted cash		1,452,915	2,501,707
Net unrealized appreciation on open futures contracts		198,901	187,483
Options purchased, at fair value (premiums paid $0 and $23,040 at June 30, 2018 and December 31, 2017, respectively)			51,625
Total equity in trading account		11,342,294	36,828,940
Cash at bank			436
Interest receivable		13,357	36,216
Total assets		39,054,628	44,270,612
Liabilities:
Options written, at fair value (premiums received $0 and $4,540 at June 30, 2018 and December 31, 2017, respectively)			23,000
Accrued expenses:
Ongoing selling agent fees		64,329	72,664
Management fees		39,489	48,754
General Partner fees		32,420	36,773
Professional fees		150,252	119,512
Redemptions payable to General Partner			150,000
Redemptions payable to Limited Partners		534,755	2,077,297
Total liabilities		821,245	2,528,000
Partners' Capital:
Total partners' capital (net asset value)		38,233,383	41,742,612
Total liabilities and partners' capital		39,054,628	44,270,612
Class A Redeemable Units [Member]
Partners' Capital:
Limited Partners		37,778,795	41,246,729
Total partners' capital (net asset value)		$ 37,778,795	$ 41,246,729
Net asset value per Redeemable Unit:
Net asset value per Redeemable Unit		$ 1,169.63	$ 1,162.18
Class Z Redeemable Units [Member]
Partners' Capital:
General Partner		$ 433,980	$ 475,611
Limited Partners		20,608	20,272
Total partners' capital (net asset value)		$ 454,588	$ 495,883
Net asset value per Redeemable Unit:
Net asset value per Redeemable Unit		$ 969.12	$ 953.31
[1]	Defined in Note 1.

Statements of Financial Condit3

Statements of Financial Condition (Parenthetical) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Options purchased premiums	$ 0	$ 23,040
Options written premiums	$ 0	$ 4,540
Class A Redeemable Units [Member]
Limited Partners Redeemable Units outstanding	32,299.8900	35,490.8260
Class Z Redeemable Units [Member]
General Partner Redeemable Units outstanding	447.8090	498.9050
Limited Partners Redeemable Units outstanding	21.2650	21.2650

Condensed Schedule of Investmen

Condensed Schedule of Investments		Jun. 30, 2018USD ($)Contract	Dec. 31, 2017USD ($)Contract
Schedule of Investments [Line Items]
% of Partners' Capital		70.75%	12.30%
Total investment in the Funds	[1]	$ 27,048,884	$ 5,132,400
Futures Contracts [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ 198,901	$ 187,483
% of Partners' Capital		0.52%	0.45%
Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ 99,647	$ 140,143
% of Partners' Capital		0.26%	0.34%
Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ 99,254	$ 47,340
% of Partners' Capital		0.26%	0.11%
Options Contracts [Member] | Long [Member] | Calls Option [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts			$ 51,625
% of Partners' Capital			0.12%
Options Contracts [Member] | Short [Member] | Calls Option [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts			$ (23,000)
% of Partners' Capital			(0.06%)
SECOR Master Fund L.P. [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		23.66%	11.43%
Total investment in the Funds		$ 9,044,050	$ 4,770,275
Cambridge Master Fund L.P. [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		4.08%	0.87%
Total investment in the Funds		$ 1,559,672	$ 362,125
CMF Harbour Square Master Fund LLC [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		29.32%
Total investment in the Funds		$ 11,209,626
CMF AE Capital Master Fund LLC [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		13.69%
Total investment in the Funds		$ 5,235,536
Currencies [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		12	90
Net unrealized appreciation (depreciation) on open contracts		$ 5,000	$ 70,786
% of Partners' Capital		0.01%	0.17%
Currencies [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		202	103
Net unrealized appreciation (depreciation) on open contracts		$ 22,442	$ (36,611)
% of Partners' Capital		0.06%	(0.09%)
Energy [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		69	78
Net unrealized appreciation (depreciation) on open contracts		$ 231,035	$ 213,269
% of Partners' Capital		0.60%	0.51%
Energy [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		13	21
Net unrealized appreciation (depreciation) on open contracts		$ (30,960)	$ (38,270)
% of Partners' Capital		(0.08%)	(0.09%)
Energy [Member] | Options Contracts [Member] | Long [Member] | Calls Option [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts			$ 43,000
% of Partners' Capital			0.10%
Energy [Member] | Options Contracts [Member] | Short [Member] | Calls Option [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts			$ (23,000)
% of Partners' Capital			(0.06%)
Grains [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		152	117
Net unrealized appreciation (depreciation) on open contracts		$ (98,543)	$ (14,200)
% of Partners' Capital		(0.26%)	(0.03%)
Grains [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		70	183
Net unrealized appreciation (depreciation) on open contracts		$ 22,646	$ 66,282
% of Partners' Capital		0.06%	0.16%
Indices [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		348	319
Net unrealized appreciation (depreciation) on open contracts		$ (112,923)	$ (22,330)
% of Partners' Capital		(0.29%)	(0.05%)
Indices [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		133	64
Net unrealized appreciation (depreciation) on open contracts		$ 96,452	$ (62,771)
% of Partners' Capital		0.25%	(0.15%)
Interest Rates Non-U.S. [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		98	45
Net unrealized appreciation (depreciation) on open contracts		$ 73,828	$ (19,505)
% of Partners' Capital		0.19%	(0.05%)
Interest Rates Non-U.S. [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		231	121
Net unrealized appreciation (depreciation) on open contracts		$ (23,649)	$ 13,667
% of Partners' Capital		(0.06%)	0.03%
Livestock [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		2	138
Net unrealized appreciation (depreciation) on open contracts		$ (1,650)	$ (133,257)
% of Partners' Capital		0.00%	(0.32%)
Livestock [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		5	127
Net unrealized appreciation (depreciation) on open contracts		$ (6,890)	$ 139,115
% of Partners' Capital		(0.02%)	0.34%
Metals [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract			32
Net unrealized appreciation (depreciation) on open contracts			$ 50,653
% of Partners' Capital			0.12%
Metals [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		16	14
Net unrealized appreciation (depreciation) on open contracts		$ 16,577	$ (40,050)
% of Partners' Capital		0.04%	(0.10%)
Softs [Member] | Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		5	82
Net unrealized appreciation (depreciation) on open contracts		$ 2,900	$ (5,273)
% of Partners' Capital		0.01%	(0.01%)
Softs [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		19	26
Net unrealized appreciation (depreciation) on open contracts		$ 8,159	$ (3,053)
% of Partners' Capital		0.02%	(0.01%)
Softs [Member] | Options Contracts [Member] | Long [Member] | Calls Option [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts			$ 8,625
% of Partners' Capital			0.02%
Interest Rates U.S. [Member] | Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		72	35
Net unrealized appreciation (depreciation) on open contracts		$ (5,523)	$ 9,031
% of Partners' Capital		(0.01%)	0.02%
[1]	Defined in Note 1.

Condensed Schedule of Investme5

Condensed Schedule of Investments (Parenthetical)	Dec. 31, 2017USD ($)
Schedule of Investments [Line Items]
Options purchased premiums	$ 23,040
Options written premiums	4,540
Options Contracts [Member] | Calls Option [Member] | Long [Member]
Schedule of Investments [Line Items]
Options purchased premiums	23,040
Options Contracts [Member] | Calls Option [Member] | Short [Member]
Schedule of Investments [Line Items]
Options written premiums	$ 4,540

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		$ 50,963	$ 66,202	$ 126,293	$ 110,104
Interest income allocated from the Funds		97,384	39,723	159,424	75,415
Total investment income		148,347	105,925	285,717	185,519
Expenses:
Expenses allocated from the Funds		60,207	63,094	98,020	123,636
Clearing fees related to direct investments		40,488	71,647	95,336	113,074
Ongoing selling agent fees		194,788	295,374	400,622	612,701
Management fees		117,935	213,801	240,300	431,278
General Partner fees		98,162	147,198	201,991	305,437
Incentive fees			33,010		94,164
Professional fees		79,815	94,148	160,444	187,904
Total expenses		591,395	918,272	1,196,713	1,868,194
Net investment loss		(443,048)	(812,347)	(910,996)	(1,682,675)
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net realized gains (losses) on closed contracts		(615,870)	(1,151,671)	(62,647)	(1,022,124)
Net realized gains (losses) on closed contracts allocated from the Funds		257,786	1,435,429	593,527	1,895,744
Net change in unrealized gains (losses) on open contracts		74,536	(239,889)	2,184	(106,420)
Net change in unrealized gains (losses) on open contracts allocated from the Funds		131,203	(495,607)	648,727	(85,434)
Total trading results		(152,345)	(451,738)	1,181,791	681,766
Net income (loss)		$ (595,393)	$ (1,264,085)	270,795	(1,000,909)
Class A Redeemable Units [Member]
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss)				$ 262,090	$ (1,000,909)
Net income (loss) per Redeemable Unit	[1]	$ (17.34)	$ (27.84)	$ 7.45	$ (22.86)
Weighted average Redeemable Units outstanding		33,213.4093	46,921.9583	34,025.9480	48,436.1743
Class Z Redeemable Units [Member]
Net gains (losses) on trading of commodity interests and investment in the Funds:
Net income (loss)				$ 8,705
Net income (loss) per Redeemable Unit	[1]	$ (9.43)		$ 15.81
Weighted average Redeemable Units outstanding		469.0740		494.6220
[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	Limited Partners [Member]	General Partner [Member]	Class A Redeemable Units [Member]	Class A Redeemable Units [Member]Limited Partners [Member]	Class A Redeemable Units [Member]General Partner [Member]	Class Z Redeemable Units [Member]	Class Z Redeemable Units [Member]General Partner [Member]
Partners' Capital, beginning of period at Dec. 31, 2016	$ 63,890,718			$ 63,890,718
Subscriptions		$ 157,041			$ 157,041
Redemptions		$ (9,543,090)	$ (50,000)		$ (9,543,090)	$ (50,000)
Net income (loss)	(1,000,909)			(1,000,909)
Partners' Capital, end of period at Jun. 30, 2017	$ 53,453,760			$ 53,453,760
Partners' Capital, Balance - Redeemable Units at Dec. 31, 2016	50,937.7676			50,937.7676
Subscriptions - Limited Partners		124.9570			124.9570
Redemptions - Redeemable Units		(7,615.1460)	(39.7590)		(7,615.1460)	(39.7590)
Partners' Capital, Balance - Redeemable Units at Jun. 30, 2017	43,407.8196			43,407.8196
Partners' Capital, beginning of period at Dec. 31, 2017	$ 41,742,612			$ 41,246,729			$ 495,883
Subscriptions		$ 50,000			$ 50,000
Redemptions		$ (3,780,024)	$ (50,000)		$ (3,780,024)			$ (50,000)
Net income (loss)	270,795			262,090			8,705
Partners' Capital, end of period at Jun. 30, 2018	$ 38,233,383			$ 37,778,795			$ 454,588
Partners' Capital, Balance - Redeemable Units at Dec. 31, 2017	36,010.9960			35,490.8260			520.1700
Subscriptions - Limited Partners		43.3540			43.3540
Redemptions - Redeemable Units		(3,234.2900)	(51.0960)		(3,234.2900)			(51.0960)
Partners' Capital, Balance - Redeemable Units at Jun. 30, 2018	32,768.9640			32,299.8900			469.0740

Organization

Organization	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	1. Organization: Emerging CTA Portfolio L.P. (the “Partnership”) is a limited partnership that was organized on July 7, 2003 under the partnership laws of the State of New York. The objective of the Partnership is to achieve capital appreciation through the allocation of assets to early-stage commodity trading advisors or established advisors employing early-stage strategies, which engage, directly and indirectly through investment in the Funds (as defined below), in speculative trading of a diversified portfolio of commodity interests, including futures, options on futures, forward, options on forward, spot and swap contracts, cash commodities and any other rights or interests pertaining thereto. The Partnership may also enter into swap and other derivative transactions directly and through its investment in the Funds with the approval of the General Partner (as defined below). The sectors traded include currencies, livestock, energy, grains, metals, indices, softs and U.S. and non-U.S. Between December 1, 2003 (commencement of the offering period) and August 5, 2004, 20,872 units of limited partnership interest (“Redeemable Units”) were sold at $1,000 per Redeemable Unit. The proceeds of the initial offering were held in an escrow account until August 6, 2004, at which time they were remitted to the Partnership for trading. 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 (the “Trading Manager”) of AE Capital Master (as defined below) and Harbour Square Master (as defined below). The General Partner is a wholly-owned subsidiary of Morgan Stanley Domestic Holdings, Inc. (“MSD Holdings”). MSD 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. 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. JPMorgan Chase Bank, N.A. (“JPMorgan”) was also a foreign exchange forward counterparty for certain Funds. During prior periods included in this report, the Partnership/Funds also deposited a portion of their cash in non-trading As of September 1, 2011, the Partnership began offering three classes of limited partnership interests: Class A Redeemable Units, Class D Redeemable Units and Class Z Redeemable Units; each of which will be referred to as a “Class” and collectively referred to as the “Classes.” All Redeemable Units issued prior to September 1, 2011 were deemed “Class A Redeemable Units.” The rights, liabilities, risks, and fees associated with investment in the Class A 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. All trading decisions are made for the Partnership by its trading advisors (the “Advisors”). As of June 30, 2018, AE Capital PTY Limited (“AE Capital”), The Cambridge Strategy (Asset Management) Limited (“Cambridge”), Harbour Square Capital Management LLC (“Harbour Square”), Independent View BV (“Independent View”) and SECOR Capital Advisors, LP (“SECOR”) served as the Partnership’s major commodity trading advisors. Effective February 28, 2017, Willowbridge Associates Inc. (“Willowbridge”) ceased to act as a commodity trading advisor to the Partnership. Effective March 1, 2018, Launchpad Capital Management, LLC (“Launchpad”) ceased to act as a commodity trading advisor to the Partnership. Effective April 30, 2018, Buttonwood Merchants, LLC (“Buttonwood”) ceased to act as a commodity trading advisor to the Partnership. 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. In addition, the General Partner may allocate the Partnership’s assets to additional non-major The Advisors are not affiliated with one another, are not affiliated with the General Partner, MS&Co. or JPMorgan, and are not responsible for the organization or operation of the Partnership. References herein to the “Advisors” may also include, as relevant, references to Launchpad, Buttonwood and Willowbridge. On October 1, 2016, the Partnership allocated a portion of its assets to Independent View, which trades the assets directly pursuant to Independent View’s IV Quantitative Futures Fund Program through a managed account in the Partnership’s name. On September 1, 2017, the Partnership allocated a portion of its assets to Launchpad. Launchpad began trading the assets directly pursuant to Launchpad’s MJP Commodity Strategy through a managed account in the Partnership’s name. Effective on March 1, 2018, Launchpad transferred its rights and obligations under its management agreement with the Partnership and the General Partner to Buttonwood, and Buttonwood entered into a new management agreement with the Partnership and the General Partner pursuant to which Buttonwood assumed Launchpad’s rights and obligations. Buttonwood traded and managed the Partnership’s assets allocated to Buttonwood pursuant to its Liquid Commodity Strategy through a managed account in the Partnership’s name up to April 30, 2018. Cambridge Master Fund L.P. (“Cambridge Master”), SECOR Master Fund L.P. (“SECOR Master”), CMF AE Capital Master Fund LLC (“AE Capital Master”) and the Partnership have, and prior to its full redemption, CMF Willowbridge Master Fund L.P. (“Willowbridge Master”) had, entered into futures brokerage account agreements and foreign exchange brokerage account agreements with MS&Co. CMF Harbour Square Master Fund LLC (“Harbour Square Master”) has entered into a futures brokerage account agreement with MS&Co. Cambridge Master, SECOR Master, AE Capital Master and Harbour Square Master are collectively referred to as the “Funds.” References herein to “Funds” may also include as relevant, reference to Willowbridge Master. 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, Effective July 12, 2017, Cambridge Master and SECOR Master each entered into certain agreements with JPMorgan in connection with trading in forward foreign currency contracts on behalf of the referenced Funds and indirectly, the Partnership. These agreements include a foreign exchange and bullion authorization agreement (“FX Agreement”), an International Swap Dealers Association, Inc. master agreement (“Master Agreement”), a schedule to the Master Agreement, a 2016 credit support annex for variation margin to the schedule and an institutional account agreement. In addition to Cambridge Master and SECOR Master, Cambridge and SECOR are both parties to the FX Agreements for the Funds to which each acts as advisor. Under each FX Agreement, JPMorgan charges a fee on the aggregate foreign currency transactions entered into on behalf of the respective Fund during a month. The Partnership has entered into a selling agreement with Morgan Stanley Smith Barney LLC, doing business as Morgan Stanley Wealth Management (“Morgan Stanley Wealth Management”) (the “Selling Agreement”). Under the Selling Agreement, the Partnership pays Morgan Stanley Wealth Management a monthly ongoing selling agent fee equal to (i) 2.0% per year of adjusted month-end month-end 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 of 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 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 and the Funds do not isolate the 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 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

Financial Highlights

Financial Highlights	6 Months Ended
	Jun. 30, 2018
Investment Company [Abstract]
Financial Highlights	3. Financial Highlights: Financial highlights for the limited partner classes as a whole for the three and six months ended June 30, 2018 and 2017 were as follows: 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):* Class A Class Z Class A Class A Class Z Class A Net realized and unrealized gains (losses) $ (4.09 ) $ (3.32 ) $ (10.53 ) $ 34.04 $ 28.04 $ 11.88 Net investment loss (13.25 ) (6.11 ) (17.31 ) (26.59 ) (12.23 ) (34.74 ) Increase (decrease) for the period (17.34 ) (9.43 ) (27.84 ) 7.45 15.81 (22.86 ) Net asset value per Redeemable Unit, beginning of period 1,186.97 978.55 1,259.27 1,162.18 953.31 1,254.29 Net asset value per Redeemable Unit, end of period $ 1,169.63 $ 969.12 $ 1,231.43 $ 1,169.63 $ 969.12 $ 1,231.43 2018 2017 2018 2017 Class A Class Z Class A Class A Class Z Class A Ratios to Average Limited Partners’ Capital:** Net investment loss *** (4.6) % (2.5) % (5.5) % (4.6) % (2.6) % (5.6) % Operating expenses 6.1 % 4.0 % 6.2 % 6.1 % 4.0 % 6.0 % Incentive fees - % - % 0.1 % - % - % 0.2 % Total expenses 6.1 % 4.0 % 6.3 % 6.1 % 4.0 % 6.2 % Total return: Total return before incentive fees (1.5) % (1.0) % (2.1) % 0.6 % 1.7 % (1.6) % Incentive fees - % - % (0.1) % - % - % (0.2) % Total return after incentive fees (1.5) % (1.0) % (2.2) % 0.6 % 1.7 % (1.8) % * 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). *** Interest income less total expenses. 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 for the Classes 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 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, respectively, the legal right to net unrealized gains and losses on open futures and forward contracts in their respective Statements of Financial Condition. The Partnership and the Funds net, for financial reporting purposes, the unrealized gains and losses on open futures and forward contracts in their respective Statements of Financial Condition, as the criteria under ASC 210-20, Balance Sheet, All of the commodity interests owned 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 months ended June 30, 2018 and 2017 were 1,479 and 2,227, respectively. The monthly average number of futures contracts traded directly by the Partnership during the six months ended June 30, 2018 and 2017 were 1,608 and 2,417, respectively The monthly average number of option contracts traded directly by the Partnership during the three months ended June 30, 2018 and 2017 were 157 and 0, respectively. The monthly average number of option contracts traded directly by the Partnership during the six months ended June 30, 2018 and 2017 were 362 and 40, respectively. The monthly average notional value of currency forward contracts traded directly by the Partnership during the three months ended June 30, 2018 and 2017 were $0 and $71,634,860, respectively. The monthly average notional value of currency forward contracts traded directly by the Partnership during the six months ended June 30, 2018 and 2017 were $7,020,761 and $48,482,124, respectively. Trading and transaction fees are based on the number of trades executed by the Advisors and the Partnership’s percentage ownership of each respective 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 and are allocated to the Funds’ limited partners/members, including the Partnership. The following tables summarize the gross and net amounts recognized relating to assets and liabilities of the Partnership’s derivatives and their offsetting subject to master netting agreements or similar arrangements as of June 30, 2018 and December 31, 2017, respectively. June 30, 2018 Gross Gross Amounts Amounts Gross Amounts Not Offset in the Net Amount Financial Instruments Cash Collateral Assets Futures $ 604,629 $ (405,728) $ 198,901 $ - $ - $ 198,901 Total assets $ 604,629 $ (405,728) $ 198,901 $ - $ - $ 198,901 Liabilities Futures $ (405,728) $ 405,728 $ - $ - $ - $ - Total liabilities $ (405,728) $ 405,728 $ - $ - $ - $ - Net Fair Value $ 198,901 * December 31, 2017 Gross Gross Amounts Amounts Gross Amounts Not Offset in the Net Amount Financial Instruments Cash Collateral Assets Futures $ 710,148 $ (522,665) $ 187,483 $ - $ - $ 187,483 Total assets $ 710,148 $ (522,665) $ 187,483 $ - $ - $ 187,483 Liabilities Futures $ (522,665) $ 522,665 $ - $ - $ - $ - Total liabilities $ (522,665) $ 522,665 $ - $ - $ - $ - Net Fair Value $ 187,483 * * 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 tables indicate the gross fair values of derivative instruments of futures and option contracts, as applicable, held directly by the Partnership as separate assets and liabilities as of June 30, 2018 and December 31, 2017, respectively. Assets June 30, 2018 Futures Contracts Currencies $ 71,901 Energy 235,446 Grains 42,543 Indices 139,583 Interest Rates U.S. 3,734 Interest Rates Non-U.S. 79,454 Metals 17,743 Softs 14,225 Total unrealized appreciation on open futures contracts 604,629 Liabilities Futures Contracts Currencies (44,459) Energy (35,371) Grains (118,440) Indices (156,054) Interest Rates U.S. (9,257) Interest Rates Non-U.S. (29,275) Livestock (8,540) Metals (1,166) Softs (3,166) Total unrealized depreciation on open futures contracts (405,728) Net unrealized appreciation on open futures contracts $ 198,901 * * This amount is in “Net unrealized appreciation on open futures contracts” in the Statements of Financial Condition. Assets December 31, 2017 Futures Contracts Currencies $ 94,211 Energy 214,439 Grains 69,673 Indices 62,560 Interest Rates U.S. 14,844 Interest Rates Non-U.S. 16,572 Livestock 144,163 Metals 50,653 Softs 43,033 Total unrealized appreciation on open futures contracts 710,148 Liabilities Futures Contracts Currencies (60,036) Energy (39,440) Grains (17,591) Indices (147,661) Interest Rates U.S. (5,813) Interest Rates Non-U.S. (22,410) Livestock (138,305) Metals (40,050) Softs (51,359) Total unrealized depreciation on open futures contracts (522,665) Net unrealized appreciation on open futures contracts $ 187,483 * Assets Options Purchased Energy $ 43,000 Softs 8,625 Total options purchased $ 51,625 ** Liabilities Options Written Energy $ (23,000) Total options written $ (23,000) *** * This amount is in “Net unrealized appreciation on open futures 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 and 2017, respectively. Three Months Ended Six Months Ended Sector 2018 2017 2018 2017 Currencies $ (223,200) $ (63,058) $ (658,126) $ 129,355 Energy 312,726 94,345 268,294 (184,190) Grains (195,610) (499,696) (115,042) (799,052) Indices (84,470) (624,970) 576,187 334,910 Interest Rates U.S. 24,399 (64,844) (21,976) (253,219) Interest Rates Non-U.S. (260,719) 10,084 36,419 118,848 Livestock (61,830) 205,740 (53,910) 90,920 Metals (61,510) (246,515) (93,815) (235,212) Softs 8,880 (202,646) 1,506 (330,904) Total $ (541,334) **** $ (1,391,560) **** $ (60,463) **** $ (1,128,544) **** **** 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 $ 604,629 $ 604,629 $ - $ - Total assets $ 604,629 $ 604,629 $ - $ - Liabilities Futures $ 405,728 $ 405,728 $ - $ - Total liabilities $ 405,728 $ 405,728 $ - $ - December 31, 2017 Total Level 1 Level 2 Level 3 Assets Futures $ 710,148 $ 710,148 $ - $ - Options purchased 51,625 51,625 - - Total assets $ 761,773 $ 761,773 $ - $ - Liabilities Futures $ 522,665 $ 522,665 $ - $ - Options written 23,000 23,000 - - Total liabilities $ 545,665 $ 545,665 $ - $ -

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 September 1, 2012, the assets allocated to Cambridge for trading were invested in Cambridge Master, a limited partnership organized under the partnership laws of the State of Delaware. Cambridge Master permits accounts managed by Cambridge using the Asian Markets Alpha Programme and the Emerging Markets Alpha Programme, each a proprietary, systematic trading program, to invest together in one trading vehicle. The General Partner is also the general partner of Cambridge Master. Individual and pooled accounts currently managed by Cambridge, including the Partnership, are permitted to be limited partners of Cambridge Master. The General Partner and Cambridge believe that trading through this master/feeder structure promotes efficiency and economy in the trading process. The General Partner and Cambridge have agreed that Cambridge will trade the Partnership’s assets allocated to Cambridge utilizing up to 1.5 times the leverage normally applied to the programs. The amount of leverage may be increased or decreased in the future. However, in no event will the amount of leverage be greater than 2.0 times the amount of assets allocated. On August 1, 2013, the assets allocated to SECOR for trading were invested in SECOR Master, a limited partnership organized under the partnership laws of the State of Delaware. SECOR Master permits accounts managed by SECOR using a variation of the program traded by SECOR Alpha Master Fund L.P., a proprietary, systematic trading program, to invest together in one trading vehicle. The General Partner is also the general partner of SECOR Master. Individual and pooled accounts currently managed by SECOR are permitted to be limited partners of SECOR Master. The General Partner and SECOR believe that trading through this master/feeder structure promotes efficiency and economy in the trading process. The General Partner and SECOR have agreed that SECOR will trade the Partnership’s assets allocated to SECOR at a level that is up to 1.5 times the leverage applied to the assets of SECOR Alpha Master Fund L.P. On August 1, 2016, the Partnership allocated a portion of its assets to Harbour Square, which until December 31, 2017 were managed and traded directly by Harbour Square pursuant to Harbour Square’s Discretionary Energy Program through a trading account in the Partnership’s name. Effective on January 1, 2018, the assets allocated to Harbour Square were transferred into Harbour Square Master, a limited liability company organized under the limited liability company laws of the State of Delaware, through which they are managed and traded by Harbour Square pursuant to the same strategy. 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 the trading manager to 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 Partnership’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. On February 1, 2017, the Partnership allocated a portion of its assets to AE Capital which were managed and traded directly by AE Capital pursuant to AE Capital’s AE Systematic FX Fund Program through a trading account in the Partnership’s name from March 1, 2017 until January 31, 2018. Effective on February 1, 2018, the assets allocated to AE Capital were transferred into AE Capital Master, a limited liability company organized under the limited liability company laws of the State of Delaware, through which they are managed and traded by AE Capital pursuant to the same strategy. AE Capital Master permits accounts managed by AE Capital using AE Capital’s AE Systematic FX Fund Program, a proprietary systematic strategy, to invest together in one trading vehicle. The General Partner is also the trading manager to AE Capital Master. Individual and pooled accounts currently managed by AE Capital, including the Partnership, are permitted to be members of AE Capital Master. The Trading Manager and AE Capital believe that trading through this master/feeder structure promotes efficiency and economy in the trading process. Effective January 1, 2013, the assets traded directly by Willowbridge using its wPraxis Futures Trading Approach were invested in Willowbridge Master, a limited partnership organized under the partnership laws of the State of New York. Effective February 28, 2017, the Partnership fully redeemed its investment in Willowbridge Master. The General Partner is not aware of any other material changes to any of the trading programs discussed above or in Note 1, “Organization” 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, ongoing selling agent fees, the General Partner fees and incentive fees are charged at the Partnership level. Professional fees are borne by the Funds and allocated to the Partnership, and also charged directly at the Partnership level. Clearing fees are borne by the Funds and allocated to the Funds’ limited partners/members, including the Partnership. Clearing fees are also borne by the Partnership directly. At June 30, 2018, the Partnership owned approximately 22.8% of SECOR Master, 4.8% of Cambridge Master, 42.1% of Harbour Square Master and 21.3% of AE Capital Master. Prior to the close of business on December 31, 2017, the Partnership owned approximately 27.2% of SECOR Master and 4.9% of Cambridge 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 investment in the Funds are approximately the same as they would be if the Partnership traded directly and the redemption rights are not affected. Summarized information reflecting the total assets, liabilities and partners’/members’ capital of the Funds is shown in the following tables: June 30, 2018 Total Assets Total Liabilities Total Capital SECOR Master $ 39,771,962 $ 186,684 $ 39,585,278 Cambridge Master 33,813,915 1,536,570 32,277,345 Harbour Square Master 26,812,602 218,340 26,594,262 AE Capital Master 24,711,030 213,820 24,497,210 December 31, 2017 Total Assets Total Liabilities Total Capital SECOR Master $ 22,831,484 $ 18,066,303 $ 4,765,181 Cambridge Master 31,063,463 4,384,639 26,678,824 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 Income (Loss) Total Trading Net Income SECOR Master $ (47,605) $ 1,685,965 $ 1,638,360 Cambridge Master 99,367 (517,681) (418,314) Harbour Square Master 76,151 9,930 86,081 AE Capital Master 50,825 (658,284) (607,459) For the six months ended June 30, 2018 Net Investment Total Trading Net Income (Loss) SECOR Master $ (97,706) $ 5,252,493 $ 5,154,787 Cambridge Master 184,655 1,492,646 1,677,301 Harbour Square Master 141,423 876,061 1,017,484 AE Capital Master (a) 89,539 (813,757) (724,218) For the three months ended June 30, 2017 Net Investment Total Trading Net Income SECOR Master $ (3,651) $ 1,708,773 $ 1,705,122 Cambridge Master 44,132 937,924 982,056 For the six months ended June 30, 2017 Net Investment Total Trading Net Income SECOR Master $ (14,054 ) $ 1,379,449 $ 1,365,395 Cambridge Master 63,518 5,659,416 5,722,934 Willowbridge Master (b) 155,028 (5,302,674 ) (5,147,646 ) (a) From February 1, 2018, the date the Partnership invested into AE Capital Master, through June 30, 2018. (b) From January 1, 2017 through February 28, 2017, the date the Partnership fully redeemed its interest in Willowbridge Master. Summarized information reflecting the Partnership’s investments in and the Partnership’s pro-rata June 30, 2018 For the three months ended June 30, 2018 % of Partners’ Capital Expenses Net Income (Loss) Funds Fair Value Income (Loss) Clearing Fees Professional Fees Investment Objective Redemptions Permitted SECOR Master 23.66 % $ 9,044,050 $ 437,947 $ 31,355 $ 3,540 $ 403,052 Commodity Portfolio Monthly Cambridge Master 4.08 % 1,559,672 92,892 1,043 737 91,112 Commodity Portfolio Monthly Harbour Square Master 29.32 % 11,209,626 71,464 8,115 6,930 56,419 Commodity Portfolio Monthly AE Capital Master 13.69 % 5,235,536 (115,930) 5,147 3,340 (124,417) Commodity Portfolio Monthly Total $ 27,048,884 $ 486,373 $ 45,660 $ 14,547 $ 426,166 June 30, 2018 For the six months ended June 30, 2018 % of Partners’ Capital Expenses Net Income (Loss) Funds Fair Value Income (Loss) Clearing Fees Professional Fees Investment Objective Redemptions Permitted SECOR Master 23.66 % $ 9,044,050 $ 984,948 $ 52,376 $ 6,081 $ 926,491 Commodity Portfolio Monthly Cambridge Master 4.08 % 1,559,672 110,127 1,401 959 107,767 Commodity Portfolio Monthly Harbour Square Master 29.32 % 11,209,626 437,910 13,151 13,234 411,525 Commodity Portfolio Monthly AE Capital Master (a) 13.69 % 5,235,536 (131,307) 5,658 5,160 (142,125) Commodity Portfolio Monthly Total $ 27,048,884 $ 1,401,678 $ 72,586 $ 25,434 $ 1,303,658 December 31, 2017 For the three months ended June 30, 2017 % of Expenses Net Income Funds Fair Value Income Clearing Professional Investment Redemptions SECOR Master 11.43 % $ 4,770,275 $ 796,932 $ 50,711 $ 6,726 $ 739,495 Commodity Portfolio Monthly Cambridge Master 0.87 % 362,125 182,613 3,012 2,645 176,956 Commodity Portfolio Monthly Total $ 5,132,400 $ 979,545 $ 53,723 $ 9,371 $ 916,451 December 31, 2017 For the six months ended June 30, 2017 % of Partners’ Capital Expenses Net Income (Loss) Funds Fair Value Income (Loss) Clearing Fees Professional Fees Investment Objective Redemptions Permitted SECOR Master 11.43 % $ 4,770,275 $ 688,490 $ 93,163 $ 13,909 $ 581,418 Commodity Portfolio Monthly Cambridge Master 0.87 % 362,125 1,208,774 9,945 5,945 1,192,884 Commodity Portfolio Monthly Willowbridge Master (b) - % - (11,539) 612 62 (12,213) Commodity Portfolio Monthly Total $ 5,132,400 $ 1,885,725 $ 103,720 $ 19,916 $ 1,762,089 (a) From February 1, 2018, the date the Partnership invested into AE Capital Master, through June 30, 2018. (b) From January 1, 2017 through February 28, 2017, the date the Partnership fully redeemed its interest in Willowbridge Master.

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. 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 a market risk equal to the value of 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 instruments mature within one year of the inception date. However, due to the nature of the 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. The 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 there were no subsequent events requiring adjustment to or disclosure in the financial statements.

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's/Funds' Derivative Investments	Partnership’s/Funds’ Derivative Investments. first-in, first-out The Partnership and the Funds do not isolate the 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 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 classes as a whole for the three and six months ended June 30, 2018 and 2017 were as follows: 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):* Class A Class Z Class A Class A Class Z Class A Net realized and unrealized gains (losses) $ (4.09 ) $ (3.32 ) $ (10.53 ) $ 34.04 $ 28.04 $ 11.88 Net investment loss (13.25 ) (6.11 ) (17.31 ) (26.59 ) (12.23 ) (34.74 ) Increase (decrease) for the period (17.34 ) (9.43 ) (27.84 ) 7.45 15.81 (22.86 ) Net asset value per Redeemable Unit, beginning of period 1,186.97 978.55 1,259.27 1,162.18 953.31 1,254.29 Net asset value per Redeemable Unit, end of period $ 1,169.63 $ 969.12 $ 1,231.43 $ 1,169.63 $ 969.12 $ 1,231.43 2018 2017 2018 2017 Class A Class Z Class A Class A Class Z Class A Ratios to Average Limited Partners’ Capital:** Net investment loss *** (4.6) % (2.5) % (5.5) % (4.6) % (2.6) % (5.6) % Operating expenses 6.1 % 4.0 % 6.2 % 6.1 % 4.0 % 6.0 % Incentive fees - % - % 0.1 % - % - % 0.2 % Total expenses 6.1 % 4.0 % 6.3 % 6.1 % 4.0 % 6.2 % Total return: Total return before incentive fees (1.5) % (1.0) % (2.1) % 0.6 % 1.7 % (1.6) % Incentive fees - % - % (0.1) % - % - % (0.2) % Total return after incentive fees (1.5) % (1.0) % (2.2) % 0.6 % 1.7 % (1.8) % * 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). *** Interest income less total expenses.

Trading Activities (Tables)

Trading Activities (Tables)	6 Months Ended
	Jun. 30, 2018
Brokers and Dealers [Abstract]
Summary of Gross and Net Amounts Recognized Relating to Assets and Liabilities of Partnership's Derivatives	The following tables summarize the gross and net amounts recognized relating to assets and liabilities of the Partnership’s derivatives and their offsetting subject to master netting agreements or similar arrangements as of June 30, 2018 and December 31, 2017, respectively. June 30, 2018 Gross Gross Amounts Amounts Gross Amounts Not Offset in the Net Amount Financial Instruments Cash Collateral Assets Futures $ 604,629 $ (405,728) $ 198,901 $ - $ - $ 198,901 Total assets $ 604,629 $ (405,728) $ 198,901 $ - $ - $ 198,901 Liabilities Futures $ (405,728) $ 405,728 $ - $ - $ - $ - Total liabilities $ (405,728) $ 405,728 $ - $ - $ - $ - Net Fair Value $ 198,901 * December 31, 2017 Gross Gross Amounts Amounts Gross Amounts Not Offset in the Net Amount Financial Instruments Cash Collateral Assets Futures $ 710,148 $ (522,665) $ 187,483 $ - $ - $ 187,483 Total assets $ 710,148 $ (522,665) $ 187,483 $ - $ - $ 187,483 Liabilities Futures $ (522,665) $ 522,665 $ - $ - $ - $ - Total liabilities $ (522,665) $ 522,665 $ - $ - $ - $ - Net Fair Value $ 187,483 * * 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, Forward and Option Contracts Traded	The following tables indicate the gross fair values of derivative instruments of futures and option contracts, as applicable, held directly by the Partnership as separate assets and liabilities as of June 30, 2018 and December 31, 2017, respectively. Assets June 30, 2018 Futures Contracts Currencies $ 71,901 Energy 235,446 Grains 42,543 Indices 139,583 Interest Rates U.S. 3,734 Interest Rates Non-U.S. 79,454 Metals 17,743 Softs 14,225 Total unrealized appreciation on open futures contracts 604,629 Liabilities Futures Contracts Currencies (44,459) Energy (35,371) Grains (118,440) Indices (156,054) Interest Rates U.S. (9,257) Interest Rates Non-U.S. (29,275) Livestock (8,540) Metals (1,166) Softs (3,166) Total unrealized depreciation on open futures contracts (405,728) Net unrealized appreciation on open futures contracts $ 198,901 * * This amount is in “Net unrealized appreciation on open futures contracts” in the Statements of Financial Condition. Assets December 31, 2017 Futures Contracts Currencies $ 94,211 Energy 214,439 Grains 69,673 Indices 62,560 Interest Rates U.S. 14,844 Interest Rates Non-U.S. 16,572 Livestock 144,163 Metals 50,653 Softs 43,033 Total unrealized appreciation on open futures contracts 710,148 Liabilities Futures Contracts Currencies (60,036) Energy (39,440) Grains (17,591) Indices (147,661) Interest Rates U.S. (5,813) Interest Rates Non-U.S. (22,410) Livestock (138,305) Metals (40,050) Softs (51,359) Total unrealized depreciation on open futures contracts (522,665) Net unrealized appreciation on open futures contracts $ 187,483 * Assets Options Purchased Energy $ 43,000 Softs 8,625 Total options purchased $ 51,625 ** Liabilities Options Written Energy $ (23,000) Total options written $ (23,000) *** * This amount is in “Net unrealized appreciation on open futures 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 Traded	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 and 2017, respectively. Three Months Ended Six Months Ended Sector 2018 2017 2018 2017 Currencies $ (223,200) $ (63,058) $ (658,126) $ 129,355 Energy 312,726 94,345 268,294 (184,190) Grains (195,610) (499,696) (115,042) (799,052) Indices (84,470) (624,970) 576,187 334,910 Interest Rates U.S. 24,399 (64,844) (21,976) (253,219) Interest Rates Non-U.S. (260,719) 10,084 36,419 118,848 Livestock (61,830) 205,740 (53,910) 90,920 Metals (61,510) (246,515) (93,815) (235,212) Softs 8,880 (202,646) 1,506 (330,904) Total $ (541,334) **** $ (1,391,560) **** $ (60,463) **** $ (1,128,544) **** **** 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
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Measured at Fair Value	Transfers between levels are recognized at the beginning of the reporting period. June 30, 2018 Total Level 1 Level 2 Level 3 Assets Futures $ 604,629 $ 604,629 $ - $ - Total assets $ 604,629 $ 604,629 $ - $ - Liabilities Futures $ 405,728 $ 405,728 $ - $ - Total liabilities $ 405,728 $ 405,728 $ - $ - December 31, 2017 Total Level 1 Level 2 Level 3 Assets Futures $ 710,148 $ 710,148 $ - $ - Options purchased 51,625 51,625 - - Total assets $ 761,773 $ 761,773 $ - $ - Liabilities Futures $ 522,665 $ 522,665 $ - $ - Options written 23,000 23,000 - - Total liabilities $ 545,665 $ 545,665 $ - $ -

Investment in the Funds (Tables

Investment in the Funds (Tables)	6 Months Ended
	Jun. 30, 2018
Schedule of Investments [Abstract]
Assets, Liabilities and Partners'/Members' Capital of Funds	Summarized information reflecting the total assets, liabilities and partners’/members’ capital of the Funds is shown in the following tables: June 30, 2018 Total Assets Total Liabilities Total Capital SECOR Master $ 39,771,962 $ 186,684 $ 39,585,278 Cambridge Master 33,813,915 1,536,570 32,277,345 Harbour Square Master 26,812,602 218,340 26,594,262 AE Capital Master 24,711,030 213,820 24,497,210 December 31, 2017 Total Assets Total Liabilities Total Capital SECOR Master $ 22,831,484 $ 18,066,303 $ 4,765,181 Cambridge Master 31,063,463 4,384,639 26,678,824
Net Investment Income (Loss), Total Trading Results and Net Income (Loss) for 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 Income (Loss) Total Trading Net Income SECOR Master $ (47,605) $ 1,685,965 $ 1,638,360 Cambridge Master 99,367 (517,681) (418,314) Harbour Square Master 76,151 9,930 86,081 AE Capital Master 50,825 (658,284) (607,459) For the six months ended June 30, 2018 Net Investment Total Trading Net Income (Loss) SECOR Master $ (97,706) $ 5,252,493 $ 5,154,787 Cambridge Master 184,655 1,492,646 1,677,301 Harbour Square Master 141,423 876,061 1,017,484 AE Capital Master (a) 89,539 (813,757) (724,218) For the three months ended June 30, 2017 Net Investment Total Trading Net Income SECOR Master $ (3,651) $ 1,708,773 $ 1,705,122 Cambridge Master 44,132 937,924 982,056 For the six months ended June 30, 2017 Net Investment Total Trading Net Income SECOR Master $ (14,054 ) $ 1,379,449 $ 1,365,395 Cambridge Master 63,518 5,659,416 5,722,934 Willowbridge Master (b) 155,028 (5,302,674 ) (5,147,646 ) (a) From February 1, 2018, the date the Partnership invested into AE Capital Master, through June 30, 2018. (b) From January 1, 2017 through February 28, 2017, the date the Partnership fully redeemed its interest in Willowbridge Master.
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 June 30, 2018 For the three months ended June 30, 2018 % of Partners’ Capital Expenses Net Income (Loss) Funds Fair Value Income (Loss) Clearing Fees Professional Fees Investment Objective Redemptions Permitted SECOR Master 23.66 % $ 9,044,050 $ 437,947 $ 31,355 $ 3,540 $ 403,052 Commodity Portfolio Monthly Cambridge Master 4.08 % 1,559,672 92,892 1,043 737 91,112 Commodity Portfolio Monthly Harbour Square Master 29.32 % 11,209,626 71,464 8,115 6,930 56,419 Commodity Portfolio Monthly AE Capital Master 13.69 % 5,235,536 (115,930) 5,147 3,340 (124,417) Commodity Portfolio Monthly Total $ 27,048,884 $ 486,373 $ 45,660 $ 14,547 $ 426,166 June 30, 2018 For the six months ended June 30, 2018 % of Partners’ Capital Expenses Net Income (Loss) Funds Fair Value Income (Loss) Clearing Fees Professional Fees Investment Objective Redemptions Permitted SECOR Master 23.66 % $ 9,044,050 $ 984,948 $ 52,376 $ 6,081 $ 926,491 Commodity Portfolio Monthly Cambridge Master 4.08 % 1,559,672 110,127 1,401 959 107,767 Commodity Portfolio Monthly Harbour Square Master 29.32 % 11,209,626 437,910 13,151 13,234 411,525 Commodity Portfolio Monthly AE Capital Master (a) 13.69 % 5,235,536 (131,307) 5,658 5,160 (142,125) Commodity Portfolio Monthly Total $ 27,048,884 $ 1,401,678 $ 72,586 $ 25,434 $ 1,303,658 December 31, 2017 For the three months ended June 30, 2017 % of Expenses Net Income Funds Fair Value Income Clearing Professional Investment Redemptions SECOR Master 11.43 % $ 4,770,275 $ 796,932 $ 50,711 $ 6,726 $ 739,495 Commodity Portfolio Monthly Cambridge Master 0.87 % 362,125 182,613 3,012 2,645 176,956 Commodity Portfolio Monthly Total $ 5,132,400 $ 979,545 $ 53,723 $ 9,371 $ 916,451 December 31, 2017 For the six months ended June 30, 2017 % of Partners’ Capital Expenses Net Income (Loss) Funds Fair Value Income (Loss) Clearing Fees Professional Fees Investment Objective Redemptions Permitted SECOR Master 11.43 % $ 4,770,275 $ 688,490 $ 93,163 $ 13,909 $ 581,418 Commodity Portfolio Monthly Cambridge Master 0.87 % 362,125 1,208,774 9,945 5,945 1,192,884 Commodity Portfolio Monthly Willowbridge Master (b) - % - (11,539) 612 62 (12,213) Commodity Portfolio Monthly Total $ 5,132,400 $ 1,885,725 $ 103,720 $ 19,916 $ 1,762,089 (a) From February 1, 2018, the date the Partnership invested into AE Capital Master, through June 30, 2018. (b) From January 1, 2017 through February 28, 2017, the date the Partnership fully redeemed its interest in Willowbridge Master.

Organization - Additional Infor

Organization - Additional Information (Detail) - $ / shares	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Aug. 05, 2004
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Number of redeemable units of limited partnership interest issued and sold during initial public offering			20,872
Redeemable Units per share			$ 1,000
Maximum number of Redeemable Units sold by the Partnership	0
Morgan Stanley Wealth Management [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Management fees description	The Partnership has entered into a selling agreement with Morgan Stanley Smith Barney LLC, doing business as Morgan Stanley Wealth Management (“Morgan Stanley Wealth Management”) (the “Selling Agreement”). Under the Selling Agreement, the Partnership pays Morgan Stanley Wealth Management a monthly ongoing selling agent fee equal to (i) 2.0% per year of adjusted month-end net assets for Class A Redeemable Units and (ii) 0.75% per year of adjusted month-end net assets for Class D Redeemable Units.
Class D Redeemable Units [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Limited Partner Capital Account Redeemable Unit outstanding	0
Class D Redeemable Units [Member] | Morgan Stanley Wealth Management [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ongoing selling agent fee	0.75%
Class A Redeemable Units [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Limited Partner Capital Account Redeemable Unit outstanding	32,299.8900	35,490.8260
Class A Redeemable Units [Member] | Morgan Stanley Wealth Management [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ongoing selling agent fee	2.00%
Maximum [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Percentage of partnership assets allocated	10.00%

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	$ (234,039)	$ (72,504)
Cash denominated in foreign currencies, proceeds	233,940	71,514
Restricted cash held for margin	1,452,915	$ 2,501,707
Uncertain tax position	$ 0
Open tax year	2014 2015 2016 2017

Financial Highlights - Schedule

Financial Highlights - Schedule of Changes in Net Asset Value (Detail) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Class A Redeemable Units [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	$ (4.09)	$ (10.53)	$ 34.04	$ 11.88
Net investment loss	(13.25)	(17.31)	(26.59)	(34.74)
Increase (decrease) for the period	(17.34)	(27.84)	7.45	(22.86)
Net asset value per Redeemable Unit, beginning of period	1,186.97	1,259.27	1,162.18	1,254.29
Net asset value per Redeemable Unit, end of period	1,169.63	$ 1,231.43	1,169.63	$ 1,231.43
Class Z Redeemable Units [Member]
Per Redeemable Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	(3.32)		28.04
Net investment loss	(6.11)		(12.23)
Increase (decrease) for the period	(9.43)		15.81
Net asset value per Redeemable Unit, beginning of period	978.55		953.31
Net asset value per Redeemable Unit, end of period	$ 969.12		$ 969.12

Financial Highlights - Ratios t

Financial Highlights - Ratios to Average Net Assets (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Class A Redeemable Units [Member]
Ratios to Average Limited Partners' Capital:
Net investment loss	(4.60%)	(5.50%)	(4.60%)	(5.60%)
Operating expenses	6.10%	6.20%	6.10%	6.00%
Incentive fees		0.10%		0.20%
Total expenses	6.10%	6.30%	6.10%	6.20%
Total return:
Total return before incentive fees	(1.50%)	(2.10%)	0.60%	(1.60%)
Incentive fees		(0.10%)		(0.20%)
Total return after incentive fees	(1.50%)	(2.20%)	0.60%	(1.80%)
Class Z Redeemable Units [Member]
Ratios to Average Limited Partners' Capital:
Net investment loss	(2.50%)		(2.60%)
Operating expenses	4.00%		4.00%
Total expenses	4.00%		4.00%
Total return:
Total return before incentive fees	(1.00%)		1.70%
Total return after incentive fees	(1.00%)		1.70%

Trading Activities - Additional

Trading Activities - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)Contracts	Jun. 30, 2017USD ($)Contracts	Jun. 30, 2018USD ($)Contracts	Jun. 30, 2017USD ($)Contracts
Futures Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average number of derivative contracts held	1,479	2,227	1,608	2,417
Options Contracts [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average number of derivative contracts held	157	0	362	40
Forward Contracts [Member] | Currencies [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Average notional value of derivative | $	$ 0	$ 71,634,860	$ 7,020,761	$ 48,482,124

Trading Activities - Summary of

Trading Activities - Summary of Gross and Net Amounts Recognized Relating to Assets and Liabilities of Partnership's Derivatives (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Derivative [Line Items]
Gross Amounts Recognized, Assets	$ 604,629	$ 710,148
Gross Amounts Offset in the Statements of Financial Condition, Assets	(405,728)	(522,665)
Amounts Presented in the Statements of Financial Condition, Assets	198,901	187,483
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets	198,901	187,483
Gross Amounts Recognized, Liabilities	(405,728)	(522,665)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	405,728	522,665
Amounts Presented in the Statements of Financial Condition, Liabilities	0	0
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	0	0
Net Amount, Liabilities	0	0
Net Fair Value	198,901	187,483
Futures Contracts [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	604,629	710,148
Gross Amounts Offset in the Statements of Financial Condition, Assets	(405,728)	(522,665)
Amounts Presented in the Statements of Financial Condition, Assets	198,901	187,483
Financial Instruments, Assets	0	0
Cash Collateral Received/Pledged, Assets	0	0
Net Amount, Assets	198,901	187,483
Gross Amounts Recognized, Liabilities	(405,728)	(522,665)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	405,728	522,665
Amounts Presented in the Statements of Financial Condition, Liabilities	0	0
Financial Instruments, Liabilities	0	0
Cash Collateral Received/Pledged, Liabilities	0	0
Net Amount, Liabilities	$ 0	$ 0

Trading Activities - Gross Fair

Trading Activities - Gross Fair Values of Derivative Instruments of Futures and Forward Contracts Traded (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	$ 604,629	$ 710,148
Total unrealized depreciation on open contracts	(405,728)	(522,665)
Net unrealized appreciation (depreciation) on open contracts	198,901	187,483
Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	99,647	140,143
Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	99,254	47,340
Options Contracts [Member] | Long [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		51,625
Options Contracts [Member] | Short [Member]
Derivative [Line Items]
Total unrealized depreciation on open contracts		(23,000)
Currencies [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	71,901	94,211
Total unrealized depreciation on open contracts	(44,459)	(60,036)
Currencies [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	5,000	70,786
Currencies [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	22,442	(36,611)
Energy [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	235,446	214,439
Total unrealized depreciation on open contracts	(35,371)	(39,440)
Energy [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	231,035	213,269
Energy [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(30,960)	(38,270)
Energy [Member] | Options Contracts [Member] | Long [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		43,000
Energy [Member] | Options Contracts [Member] | Short [Member]
Derivative [Line Items]
Total unrealized depreciation on open contracts		(23,000)
Grains [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	42,543	69,673
Total unrealized depreciation on open contracts	(118,440)	(17,591)
Grains [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(98,543)	(14,200)
Grains [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	22,646	66,282
Indices [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	139,583	62,560
Total unrealized depreciation on open contracts	(156,054)	(147,661)
Indices [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(112,923)	(22,330)
Indices [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	96,452	(62,771)
Interest Rates U.S. [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	3,734	14,844
Total unrealized depreciation on open contracts	(9,257)	(5,813)
Interest Rates U.S. [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(5,523)	9,031
Interest Rates Non-U.S. [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	79,454	16,572
Total unrealized depreciation on open contracts	(29,275)	(22,410)
Interest Rates Non-U.S. [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	73,828	(19,505)
Interest Rates Non-U.S. [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(23,649)	13,667
Livestock [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		144,163
Total unrealized depreciation on open contracts	(8,540)	(138,305)
Livestock [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(1,650)	(133,257)
Livestock [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	(6,890)	139,115
Metals [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	17,743	50,653
Total unrealized depreciation on open contracts	(1,166)	(40,050)
Metals [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts		50,653
Metals [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	16,577	(40,050)
Softs [Member] | Futures Contracts [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts	14,225	43,033
Total unrealized depreciation on open contracts	(3,166)	(51,359)
Softs [Member] | Futures Contracts [Member] | Long [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	2,900	(5,273)
Softs [Member] | Futures Contracts [Member] | Short [Member]
Derivative [Line Items]
Net unrealized appreciation (depreciation) on open contracts	$ 8,159	(3,053)
Softs [Member] | Options Contracts [Member] | Long [Member]
Derivative [Line Items]
Total unrealized appreciation on open contracts		$ 8,625

Trading Activities - Trading Ga

Trading Activities - Trading Gains and Losses by Market Sector on Derivative Instruments Traded (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Derivative [Line Items]
Total trading results	$ (541,334)	$ (1,391,560)	$ (60,463)	$ (1,128,544)
Currencies [Member]
Derivative [Line Items]
Total trading results	(223,200)	(63,058)	(658,126)	129,355
Energy [Member]
Derivative [Line Items]
Total trading results	312,726	94,345	268,294	(184,190)
Grains [Member]
Derivative [Line Items]
Total trading results	(195,610)	(499,696)	(115,042)	(799,052)
Indices [Member]
Derivative [Line Items]
Total trading results	(84,470)	(624,970)	576,187	334,910
Interest Rates U.S. [Member]
Derivative [Line Items]
Total trading results	24,399	(64,844)	(21,976)	(253,219)
Interest Rates Non-U.S. [Member]
Derivative [Line Items]
Total trading results	(260,719)	10,084	36,419	118,848
Livestock [Member]
Derivative [Line Items]
Total trading results	(61,830)	205,740	(53,910)	90,920
Metals [Member]
Derivative [Line Items]
Total trading results	(61,510)	(246,515)	(93,815)	(235,212)
Softs [Member]
Derivative [Line Items]
Total trading results	$ 8,880	$ (202,646)	$ 1,506	$ (330,904)

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - DerivativeInstrument	Jun. 30, 2018	Dec. 31, 2017
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative instruments held	0	0

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Assets
Total assets	$ 604,629	$ 761,773
Liabilities
Total liabilities	405,728	545,665
Futures Contracts [Member]
Assets
Total assets	604,629	710,148
Liabilities
Total liabilities	405,728	522,665
Options Contracts [Member] | Long [Member]
Assets
Total assets		51,625
Options Contracts [Member] | Short [Member]
Liabilities
Total liabilities		23,000
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member]
Assets
Total assets	604,629	761,773
Liabilities
Total liabilities	405,728	545,665
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member] | Futures Contracts [Member]
Assets
Total assets	604,629	710,148
Liabilities
Total liabilities	$ 405,728	522,665
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member] | Options Contracts [Member] | Long [Member]
Assets
Total assets		51,625
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) [Member] | Options Contracts [Member] | Short [Member]
Liabilities
Total liabilities		$ 23,000

Investment in the Funds - Addit

Investment in the Funds - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
SECOR Master Fund L.P. [Member]
Investment [Line Items]
Percentage owned by partnership	22.80%	27.20%
Cambridge Master Fund L.P. [Member]
Investment [Line Items]
Percentage owned by partnership	4.80%	4.90%
CMF Harbour Square Master Fund LLC [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	One and a half times
Percentage owned by partnership	42.10%
CMF AE Capital Master Fund LLC [Member]
Investment [Line Items]
Percentage owned by partnership	21.30%
Maximum [Member] | SECOR Master Fund L.P. [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	1.5 times
Maximum [Member] | Cambridge [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	2.0 times
Minimum [Member] | Cambridge [Member]
Investment [Line Items]
Maximum amount of partnership assets allocated to trading advisor	1.5 times

Investment in the Funds - Asset

Investment in the Funds - Assets, Liabilities and Partners'/Members' Capital of Funds (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Investment Holdings [Line Items]
Total Assets	$ 39,054,628	$ 44,270,612
Total Liabilities	821,245	2,528,000
Total Capital	38,233,383	41,742,612	$ 53,453,760	$ 63,890,718
SECOR Master Fund L.P. [Member]
Investment Holdings [Line Items]
Total Assets	39,771,962	22,831,484
Total Liabilities	186,684	18,066,303
Total Capital	39,585,278	4,765,181
Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Total Assets	33,813,915	31,063,463
Total Liabilities	1,536,570	4,384,639
Total Capital	32,277,345	$ 26,678,824
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
CMF AE Capital Master Fund LLC [Member]
Investment Holdings [Line Items]
Total Assets	24,711,030
Total Liabilities	213,820
Total Capital	$ 24,497,210

Investment in the Funds - Net I

Investment in the Funds - Net Investment Income (Loss), Total Trading Results and Net Income (Loss) for 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)	$ (443,048)	$ (812,347)	$ (910,996)	$ (1,682,675)
Total Trading Results	(152,345)	(451,738)	1,181,791	681,766
Net income (loss)	(595,393)	(1,264,085)	270,795	(1,000,909)
SECOR Master Fund L.P. [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	(47,605)	(3,651)	(97,706)	(14,054)
Total Trading Results	1,685,965	1,708,773	5,252,493	1,379,449
Net income (loss)	1,638,360	1,705,122	5,154,787	1,365,395
Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	99,367	44,132	184,655	63,518
Total Trading Results	(517,681)	937,924	1,492,646	5,659,416
Net income (loss)	(418,314)	$ 982,056	1,677,301	5,722,934
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
CMF AE Capital Master Fund LLC [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)	50,825		89,539
Total Trading Results	(658,284)		(813,757)
Net income (loss)	$ (607,459)		$ (724,218)
CMF Willowbridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Net Investment Income (Loss)				155,028
Total Trading Results				(5,302,674)
Net income (loss)				$ (5,147,646)

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) (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]
Percentage of Partnership's Net Assets	70.75%			70.75%			12.30%
Fair Value	$ 27,048,884	[1]	$ 5,132,400	$ 27,048,884	[1]	$ 5,132,400	$ 5,132,400	[1]
Income (Loss)	(152,345)		(451,738)	1,181,791		681,766
Expenses, Clearing Fees	40,488		71,647	95,336		113,074
Expenses, Professional fees	79,815		94,148	160,444		187,904
Net income (loss)	$ (595,393)		$ (1,264,085)	$ 270,795		$ (1,000,909)
SECOR Master Fund L.P. [Member]
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets	23.66%		11.43%	23.66%		11.43%	11.43%
Fair Value	$ 9,044,050		$ 4,770,275	$ 9,044,050		$ 4,770,275	$ 4,770,275
Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets	4.08%		0.87%	4.08%		0.87%	0.87%
Fair Value	$ 1,559,672		$ 362,125	$ 1,559,672		$ 362,125	$ 362,125
CMF Harbour Square Master Fund LLC [Member]
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets	29.32%			29.32%
Fair Value	$ 11,209,626			$ 11,209,626
CMF AE Capital Master Fund LLC [Member]
Investment Holdings [Line Items]
Percentage of Partnership's Net Assets	13.69%			13.69%
Fair Value	$ 5,235,536			$ 5,235,536
Investment in Funds [Member]
Investment Holdings [Line Items]
Income (Loss)	486,373		979,545	1,401,678		1,885,725
Expenses, Clearing Fees	45,660		53,723	72,586		103,720
Expenses, Professional fees	14,547		9,371	25,434		19,916
Net income (loss)	426,166		916,451	1,303,658		1,762,089
Investment in Funds [Member] | Commodity [Member] | SECOR Master Fund L.P. [Member]
Investment Holdings [Line Items]
Income (Loss)	437,947		796,932	984,948		688,490
Expenses, Clearing Fees	31,355		50,711	52,376		93,163
Expenses, Professional fees	3,540		6,726	6,081		13,909
Net income (loss)	$ 403,052		739,495	$ 926,491		581,418
Investment Objective	Commodity Portfolio			Commodity Portfolio
Redemptions Permitted	Monthly			Monthly
Investment in Funds [Member] | Commodity [Member] | Cambridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Income (Loss)	$ 92,892		182,613	$ 110,127		1,208,774
Expenses, Clearing Fees	1,043		3,012	1,401		9,945
Expenses, Professional fees	737		2,645	959		5,945
Net income (loss)	$ 91,112		$ 176,956	$ 107,767		1,192,884
Investment Objective	Commodity Portfolio			Commodity Portfolio
Redemptions Permitted	Monthly			Monthly
Investment in Funds [Member] | Commodity [Member] | CMF Harbour Square Master Fund LLC [Member]
Investment Holdings [Line Items]
Income (Loss)	$ 71,464			$ 437,910
Expenses, Clearing Fees	8,115			13,151
Expenses, Professional fees	6,930			13,234
Net income (loss)	$ 56,419			$ 411,525
Investment Objective	Commodity Portfolio			Commodity Portfolio
Redemptions Permitted	Monthly			Monthly
Investment in Funds [Member] | Commodity [Member] | CMF AE Capital Master Fund LLC [Member]
Investment Holdings [Line Items]
Income (Loss)	$ (115,930)			$ (131,307)
Expenses, Clearing Fees	5,147			5,658
Expenses, Professional fees	3,340			5,160
Net income (loss)	$ (124,417)			$ (142,125)
Investment Objective	Commodity Portfolio			Commodity Portfolio
Redemptions Permitted	Monthly			Monthly
Investment in Funds [Member] | Commodity [Member] | CMF Willowbridge Master Fund L.P. [Member]
Investment Holdings [Line Items]
Income (Loss)						(11,539)
Expenses, Clearing Fees						612
Expenses, Professional fees						62
Net income (loss)						$ (12,213)
[1]	Defined in Note 1.

Financial Instrument Risks - Ad

Financial Instrument Risks - Additional Information (Detail)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Concentration Risk [Line Items]
Financial instruments maturity period		1 year
Minimum [Member] | Credit Concentration Risk [Member] | Partnership's/Funds' Contracts [Member] | Over the Counter [Member]
Concentration Risk [Line Items]
Concentration risk percentage	10.90%
Maximum [Member] | Credit Concentration Risk [Member] | Partnership's/Funds' Contracts [Member] | Over the Counter [Member]
Concentration Risk [Line Items]
Concentration risk percentage	37.20%