Document And Entity Information
Document And Entity Information - shares | 6 Months Ended | |
Jun. 30, 2019 | Aug. 05, 2019 | |
Document Information [Line Items] | ||
Entity Central Index Key | 0001332174 | |
Entity Shell Company | false | |
Entity Registrant Name | iShares S&P GSCI Commodity-Indexed Trust | |
Amendment Flag | false | |
Current Fiscal Year End Date | --12-31 | |
Document Fiscal Period Focus | Q2 | |
Document Fiscal Year Focus | 2019 | |
Entity Small Business | false | |
Entity Emerging Growth Company | false | |
Document Quarterly Report | true | |
Document Transition Report | false | |
Document Type | 10-Q | |
Document Period End Date | Jun. 30, 2019 | |
Entity File Number | 001-32947 | |
Entity Incorporation, State or Country Code | DE | |
Entity Tax Identification Number | 51-6573369 | |
Entity Address, Address Line One | 400 Howard Street | |
Entity Address, City or Town | San Francisco | |
Entity Address, State or Province | CA | |
Entity Address, Postal Zip Code | 94105 | |
City Area Code | 415 | |
Local Phone Number | 670-2000 | |
Entity Current Reporting Status | Yes | |
Entity Interactive Data Current | Yes | |
Entity Filer Category | Large Accelerated Filer | |
Title of 12(b) Security | Shares | |
Trading Symbol | GSG | |
Security Exchange Name | NYSEArca | |
Entity Common Stock, Shares Outstanding | 55,550,000 |
Statements of Assets and Liabil
Statements of Assets and Liabilities (Unaudited) - USD ($) | Jun. 30, 2019 | Dec. 31, 2018 | |
Assets | |||
Cash | $ 26,825,746 | $ 10,033,297 | |
Short-term investments(a) | [1] | 882,775,554 | 1,135,484,485 |
Short-term investments held at the broker (restricted)(b) | [2] | 36,867,601 | 64,242,167 |
Receivable for variation margin on open futures contracts (Note 9) | 0 | 920,643 | |
Total Assets | 946,468,901 | 1,210,680,592 | |
Liabilities | |||
Payable for capital shares redeemed | 58,162,788 | 0 | |
Payable for variation margin on open futures contracts (Note 9) | 11,385,911 | 0 | |
Sponsor’s fees payable | 585,476 | 805,937 | |
Brokerage commissions and fees payable | 0 | 8,046 | |
Total Liabilities | 70,134,175 | 813,983 | |
Commitments and contingent liabilities (Note 7) | |||
Net Assets | $ 876,334,726 | $ 1,209,866,609 | |
Shares issued and outstanding(c) (in shares) | [3] | 55,750,000 | 86,500,000 |
Net asset value per Share (Note 2G) (in dollars per share) | $ 15.72 | $ 13.99 | |
[1] | Cost of short-term investments: $882,377,666 and $1,135,426,788, respectively. | ||
[2] | Cost of short-term investments held at the broker (restricted): $36,850,704 and $64,238,656, respectively. | ||
[3] | No par value, unlimited amount authorized. |
Statements of Assets and Liab_2
Statements of Assets and Liabilities (Unaudited) (Parentheticals) - USD ($) $ / shares in Thousands | Jun. 30, 2019 | Dec. 31, 2018 |
Cost of short-term investments | $ 882,377,666 | $ 1,135,426,788 |
Cost of short-term investments held at broker (restricted) | $ 36,850,704 | $ 64,238,656 |
Shares, outstanding (in shares) | 55,750,000 | 86,500,000 |
Shares, par value (in dollars per share) | $ 0 | $ 0 |
Statements of Operations (Unaud
Statements of Operations (Unaudited) - USD ($) | 3 Months Ended | 6 Months Ended | |||
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | ||
Investment Income | |||||
Interest | $ 6,522,254 | $ 5,985,450 | $ 13,732,868 | $ 10,697,970 | |
Total investment income | 6,522,254 | 5,985,450 | 13,732,868 | 10,697,970 | |
Expenses | |||||
Sponsor’s fees | 2,074,766 | 2,722,583 | 4,457,197 | 5,385,303 | |
Brokerage commissions and fees | 259,443 | 349,749 | 596,589 | 717,805 | |
Total expenses | 2,334,209 | 3,072,332 | 5,053,786 | 6,103,108 | |
Net Investment income | 4,188,045 | 2,913,118 | 8,679,082 | 4,594,862 | |
Net Realized and Unrealized Gain (Loss) | |||||
Short-term investments | 8,155 | (457) | 8,256 | 618 | |
Futures contracts | (12,341,801) | 87,476,140 | (10,416,570) | 172,734,880 | |
Net realized gain (loss) | (12,333,646) | 87,475,683 | (10,408,314) | 172,735,498 | |
Net change in unrealized appreciation/depreciation on: | |||||
Short-term investments | 215,459 | 173,937 | 353,577 | 203,884 | |
Futures contracts | (7,677,541) | 18,892,760 | 156,080,822 | (42,413,107) | |
Net change in unrealized appreciation/depreciation | (7,462,082) | 19,066,697 | 156,434,399 | (42,209,223) | |
Net realized and unrealized gain (loss) | (19,795,728) | 106,542,380 | 146,026,085 | 130,526,275 | |
Net increase (decrease) in net assets resulting from operations | $ (15,607,683) | $ 109,455,498 | $ 154,705,167 | $ 135,121,137 | |
Net increase (decrease) in net assets per Share(a) (in dollars per share) | [1] | $ (0.23) | $ 1.31 | $ 2.03 | $ 1.58 |
[1] | Net increase (decrease) in net assets per Share based on average shares outstanding during the period. |
Statements of Changes in Net As
Statements of Changes in Net Assets (Unaudited) - USD ($) | 3 Months Ended | 6 Months Ended | ||||
Jun. 30, 2019 | Mar. 31, 2019 | Jun. 30, 2018 | Mar. 31, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | |
Net Assets, Beginning of Period | $ 1,232,799,956 | $ 1,209,866,609 | $ 1,436,128,442 | $ 1,393,408,765 | $ 1,209,866,609 | $ 1,393,408,765 |
Operations: | ||||||
Net investment income | 4,188,045 | 4,491,037 | 2,913,118 | 1,681,744 | 8,679,082 | 4,594,862 |
Net realized gain (loss) | (12,333,646) | 1,925,332 | 87,475,683 | 85,259,815 | (10,408,314) | 172,735,498 |
Net change in unrealized appreciation/depreciation | (7,462,082) | 163,896,481 | 19,066,697 | (61,275,920) | 156,434,399 | (42,209,223) |
Net increase (decrease) in net assets resulting from operations | (15,607,683) | 170,312,850 | 109,455,498 | 25,665,639 | 154,705,167 | 135,121,137 |
Capital Share Transactions: | ||||||
Contributions for Shares issued | 891,320 | 24,217,916 | 15,525,326 | 92,570,265 | ||
Distributions for Shares redeemed | (341,748,867) | (171,597,419) | (79,408,752) | (75,516,227) | ||
Net increase (decrease) in net assets from capital share transactions | (340,857,547) | (147,379,503) | (63,883,426) | 17,054,038 | ||
Increase (decrease) in net assets | (356,465,230) | 22,933,347 | 45,572,072 | 42,719,677 | ||
Net Assets, End of Period | $ 876,334,726 | $ 1,232,799,956 | $ 1,481,700,514 | $ 1,436,128,442 | $ 876,334,726 | $ 1,481,700,514 |
Shares issued and redeemed | ||||||
Shares issued (in shares) | 1,750,000 | 6,450,000 | ||||
Shares redeemed (in shares) | (32,500,000) | (9,200,000) | ||||
Net decrease in Shares issued and outstanding (in shares) | (30,750,000) | (2,750,000) |
Statements of Cash Flows (Unaud
Statements of Cash Flows (Unaudited) - USD ($) | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | |
Cash Flows from Operating Activities | ||||
Net increase (decrease) in net assets resulting from operations | $ (15,607,683) | $ 109,455,498 | $ 154,705,167 | $ 135,121,137 |
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities: | ||||
Purchases of short-term investments | (4,662,031,173) | (6,548,975,208) | ||
Sales/maturities of short-term investments | 4,956,202,455 | 6,463,712,100 | ||
Accretion of discount | (13,725,952) | (10,696,216) | ||
Net realized (gain) loss on short-term investments | (8,155) | 457 | (8,256) | (618) |
Net change in unrealized appreciation/depreciation on short-term investments | (215,459) | (173,937) | (353,577) | (203,884) |
Change in operating assets and liabilities: | ||||
Receivable for variation margin on open futures contracts | 920,643 | (13,635,329) | ||
Payable for variation margin on open futures contracts | 11,385,911 | 0 | ||
Sponsor’s fees payable | (220,461) | 37,819 | ||
Brokerage commissions and fees payable | (8,046) | (362) | ||
Net cash provided by (used in) operating activities | 446,866,711 | 25,359,439 | ||
Cash Flows from Financing Activities | ||||
Contributions for Shares issued | 25,109,236 | 111,358,991 | ||
Distributions for Shares redeemed | (455,183,498) | (154,924,979) | ||
Net cash provided by (used in) financing activities | (430,074,262) | (43,565,988) | ||
Net increase (decrease) in cash | 16,792,449 | (18,206,549) | ||
Cash | ||||
Beginning of period, Unrestricted — cash | 10,033,297 | 41,786,279 | ||
End of period, Unrestricted — cash | $ 26,825,746 | $ 23,579,730 | $ 26,825,746 | $ 23,579,730 |
Schedules of Investments (Unaud
Schedules of Investments (Unaudited) | 6 Months Ended |
Jun. 30, 2019 | |
Notes to Financial Statements | |
Investment Holdings, Schedule of Investments [Text Block] | s S& P GSCI ™ Commodity-Indexe d Trust Schedule s o f Investment s (Unaudited) At June 30, 2019 December 31, 2018 June 30, 2019 Security Description Face Amount Fair Value U.S. Treasury bills (a)(b) 2.44% due 07/02/19 $ 20,000,000 $ 19,998,922 2.26% – 2.42% due 07/05/19 205,000,000 204,955,579 2.41% due 07/09/19 150,000,000 149,935,500 2.10% due 07/16/19 25,000,000 24,978,659 2.40% due 07/25/19 15,000,000 14,980,500 2.05% – 2.36% due 08/01/19 130,000,000 129,774,992 2.42% due 08/08/19 (a) 70,000,000 69,847,697 2.36% due 08/15/19 100,000,000 99,738,437 2.36% due 11/07/19 107,000,000 106,209,202 2.38% due 11/14/19 100,000,000 99,223,667 Total U.S. Treasury bills (Cost: $919,228,370) 919,643,155 Total Investments – 104.94% 919,643,155 Other Assets, Less Liabilities – (4.94)% (43,308,429 ) Net Assets – 100.00% $ 876,334,726 (a) A portion of the above United States Treasury bills are posted as margin for the Trust’s Index Futures positions as described in Note 2D. (b) Rates shown are discount rates paid at the time of purchase. As of June 30, 2019, Ne t Unrealize d Appreciation Number of Contracts Expiratio n Dat e Curren t Notiona l Amount (Depreciation) 37,905 September 17, 2019 $ 876,818,460 $ 39,557,573 December 31, 2018 Securit y Descriptio n Fac e Amoun t Fai r Value U.S. Treasury bills (a)(b) 2.08% – 2.25% due 01/03/19 $ 16,000,000 $ 15,999,000 2.32% due 01/08/19 200,000,000 199,925,084 2.30% due 01/10/19 145,000,000 144,927,380 2.29% due 01/15/19 200,000,000 199,835,784 2.30% – 2.33% due 01/22/19 350,000,000 349,552,777 2.28% due 01/24/19 180,000,000 179,748,925 2.40% due 01/29/19 50,000,000 49,909,343 2.41% due 02/14/19 60,000,000 59,828,359 Total U.S. Treasury bills (Cost: $1,199,665,444) 1,199,726,652 Total Investments – 99.16% 1,199,726,652 Other Assets, Less Liabilities – 0.84% 10,139,957 Net Assets – 100.00% $ 1,209,866,609 (a) A portion of the above United States Treasury bills are posted as margin for the Trust’s Index Futures positions as described in Note 2D. (b) Rates shown are discount rates paid at the time of purchase. As of December 31, 2018, Ne t Unrealize d Appreciation Number of Contracts Expiratio n Dat e Curren t Notiona l Amount (Depreciation) 57,905 March 15, 2019 $ 1,200,110,078 $ (116,523,249 ) Se e note s t o financial statements. |
Note 1 - Organization
Note 1 - Organization | 6 Months Ended |
Jun. 30, 2019 | |
Notes to Financial Statements | |
Business Description and Basis of Presentation [Text Block] | 1 - Organization The iShares S&P GSCI™ Commodity-Indexed Trust (the “Trust”) is a Delaware statutory trust that was organized under the laws of the State of Delaware on July 7, 2006 July 10, 2006. December 31, 2013 ( The Trust holds long positions in exchange-traded index futures contracts of various expirations (“Index Futures”) on the S&P GSCI™ Excess Return Index (“S&P GSCI-ER”). In order to collateralize its Index Futures positions and to reflect the U.S. Treasury component of the S&P GSCI™ Total Return Index (the “Index”), the Trust also holds “Collateral Assets,” which consist of cash, U.S. Treasury securities or other short-term securities and similar securities that are eligible as margin deposits for those Index Futures positions. The Index Futures held by the Trust are listed on the Chicago Mercantile Exchange (the “CME”). The Trust seeks to track the results of a fully collateralized investment in futures contracts on an index composed of a diversified group of commodities futures. The Trust seeks to track the investment returns of the Index before payment of the Trust’s expenses and liabilities. The Trust is a commodity pool, as defined in the Commodity Exchange Act (the “CEA”) and the applicable regulations of the Commodity Futures Trading Commission (the “CFTC”), and is operated by the Sponsor, a commodity pool operator registered with the CFTC. The Sponsor is an indirect subsidiary of BlackRock, Inc. (“BlackRock”). BlackRock Fund Advisors (the “Advisor”), an indirect subsidiary of BlackRock, serves as the commodity trading advisor of the Trust and is registered with the CFTC. The accompanying unaudited financial statements were prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions for Form 10 not 10‑K December 31, 2018, February 28, 2019. The Trust qualifies as an investment company for accounting purposes and follows the accounting and reporting guidance under the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification Topic 946, Financial Services – Investmen t Companie s not not 1940, |
Note 2 - Significant Accounting
Note 2 - Significant Accounting Policies | 6 Months Ended |
Jun. 30, 2019 | |
Notes to Financial Statements | |
Significant Accounting Policies [Text Block] | 2 - Significan t Accountin g Policies A . Basi s o f Accounting The following significant accounting policies are consistently followed by the Trust in the preparation of its financial statements in conformity with U.S. GAAP. The preparation of financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Certain statements and captions in the financial statements for the prior periods have been changed to conform to the current financial statement presentation. B . Investmen t i n Inde x Futures The Trust seeks to track the results of a fully collateralized investment in futures contracts on an index composed of a diversified group of commodities futures, including energy commodities, precious and industrial metal commodities, agricultural commodities and livestock commodities. The Trust seeks to track the investment returns of the Index before payment of the Trust’s expenses and liabilities. The assets of the Trust consist of Index Futures and cash or other Collateral Assets used to satisfy applicable margin requirements for those Index Futures positions. Index Futures are exchange-traded index futures contracts on the S&P GSCI-ER, and are expected to include contracts of different terms and expirations. The Trust is expected to roll out of existing positions in Index Futures and establish new positions in Index Futures on an ongoing basis. When establishing positions in Index Futures, the Trust is required to deposit cash or other Collateral Assets with the broker as “initial margin.” On a daily basis, the Trust is obligated to pay, or entitled to receive, cash in an amount equal to the change in the daily settlement level of its Index Futures positions. Such payments or receipts are known as variation margin. Variation margin is recorded as unrealized appreciation (depreciation) and, if any, shown as variation margin receivable (or payable) on futures contracts in the Statements of Assets and Liabilities. When an Index Futures contract is closed, the Trust records a realized gain or loss based on the difference between the value of the Index Futures contract at the time it was opened and the value at the time it was closed. Index Futures are derivative instruments valued at fair value, which the Trustee has determined to be that day’s announced settlement price on the CME or any such other futures exchange listing Index Futures (the “Exchange”). If there is no announced settlement price for a particular Index Futures contract on that day, the Trustee will use the most recently announced settlement price unless the Trustee, in consultation with the Sponsor, determines that such price is inappropriate as a basis for valuation. The Trust’s derivatives are not designated as hedges, and all changes in the fair value are reflected in the statements of operations. For futures contracts, counterparty credit risk is mitigated because futures contracts are exchange-traded and the exchange’s clearing house acts as central counterparty to all exchange-traded futures contracts (although customers continue to have credit exposure to the clearing member who holds their account). Please refer to Note 9 for additional disclosures regarding the Trust’s investments in futures contracts. C. Cash The Trust considers cash as currencies deposited in one or more bank account. Cash is presented on the Statement of Cash Flows as unrestricted cash. D. Short-Ter m Investments Short-term investments on the statements of assets and liabilities consist principally of short-term fixed income securities with original maturities of one year or less. These investments are valued at fair value. As of June 30, 2019 and December 31, 2018, the Trust had restricted short-term investments held at the broker of and respectively, which were posted as margin for the Trust’s Index Futures positions. E . Securitie s Transactions an d Incom e Recognition Securities transactions are accounted for on the trade date. Realized gains and losses on investment transactions are determined using the specific identification method. Interest income, including amortization and accretion of premiums and discounts on debt securities, is recognized daily on the accrual basis. F . Incom e Taxes The Trust is treated as a partnership for federal, state and local income tax purposes. No provision for federal, state, and local income taxes has been made in the accompanying financial statements because the Trust is not subject to income taxes. Shareholders are individually responsible for their own tax payments on their proportionate share of income, gain, loss, deduction, expense and credit. The Sponsor has analyzed the tax positions as of June 30, 2019, inclusive of the open tax return years, and does not believe that there are any uncertain tax positions that require recognition of a tax liability. G . Calculation o f Ne t Asse t Value The net asset value of the Trust on any given day is obtained by subtracting the Trust’s accrued expenses and other liabilities on that day from the value of ( 1 ) the Trust’s Index Futures positions and Collateral Assets on that day, ( 2 ) the interest earned on those assets by the Trust and ( 3 ) any other assets of the Trust, as of 4:00 p.m. (New York time) that day. The Trustee determines the net asset value per Share (the “NAV”) by dividing the net asset value of the Trust on a given day by the number of Shares outstanding at the time the calculation is made. The NAV is calculated each day on which NYSE Arca, Inc. (“NYSE Arca”) is open for regular trading, as soon as practicable after 4:00 p.m. (New York time). H. Distributions Interest and distributions received by the Trust on its assets may be used to acquire additional Index Futures and Collateral Assets or, in the discretion of the Sponsor, distributed to shareholders. The Trust is under no obligation to make periodic distributions to shareholders. |
Note 3 - Offering of the Shares
Note 3 - Offering of the Shares | 6 Months Ended |
Jun. 30, 2019 | |
Notes to Financial Statements | |
Stockholders' Equity Note Disclosure [Text Block] | 3 - Offerin g o f th e Shares Shares are issued and redeemed continuously in one may not may 2:40 one It is possible that, from time to time, BlackRock and/or funds or other accounts managed by the Trustee or an affiliate (collectively, “Affiliates”) may |
Note 4 - Trust Expenses
Note 4 - Trust Expenses | 6 Months Ended |
Jun. 30, 2019 | |
Notes to Financial Statements | |
Expenses [Text Block] | 4 - Trus t Expenses The Trust is responsible for paying any applicable brokerage commissions and similar transaction fees out of its assets in connection with the roll of Index Futures held by the Trust. These expenses are recorded as brokerage commissions and fees in the statements of operations as incurred. The Sponsor pays the amounts that would otherwise be considered the ordinary operating expenses, if any, of the Trust. In return, the Sponsor receives a fee from the Trust that accrues daily at an annualized rate equal to 0.75% of the net asset value of the Trust, as calculated before deducting fees and expenses based on the value of the Trust’s assets. The Sponsor has agreed under the Trust Agreement to pay the following administrative, operational and marketing expenses: ( 1 2 3 4 5 6 7 8 |
Note 5 - Related Parties
Note 5 - Related Parties | 6 Months Ended |
Jun. 30, 2019 | |
Notes to Financial Statements | |
Related Party Transactions Disclosure [Text Block] | 5 - Relate d Parties The Sponsor, the Trustee and the Advisor are considered to be related parties to the Trust. The Trustee’s and Advisor’s fees are paid by the Sponsor and are not |
Note 6 - Indemnification
Note 6 - Indemnification | 6 Months Ended |
Jun. 30, 2019 | |
Notes to Financial Statements | |
Indemnification [Text Block] | 6 - Indemnification The Trust Agreement provides that the Sponsor and its shareholders, directors, officers, employees, affiliates (as such term is defined under the Securities Act of 1933, 1 2 The investment advisory agreement (the “Advisory Agreement”) between the Trust and the Advisor provides that the Advisor and its shareholders, directors, officers, employees, affiliates (as such term is defined under the Securities Act of 1933, 1 2 |
Note 7 - Commitments and Contin
Note 7 - Commitments and Contingent Liabilities | 6 Months Ended |
Jun. 30, 2019 | |
Notes to Financial Statements | |
Commitments and Contingencies Disclosure [Text Block] | 7 - Commitments an d Contingen t Liabilities In the normal course of business, the Trust may may not |
Note 8 - Financial Highlights
Note 8 - Financial Highlights | 6 Months Ended |
Jun. 30, 2019 | |
Notes to Financial Statements | |
Financial Highlights [Text Block] | 8 - Financia l Highlights The following financial highlights relate to investment performance and operations for a Share outstanding for the three six June 30, 2019 2018. Three Months Ended Six Months Ended June 30, June 30, 2019 2018 2019 2018 Net asset value per Share, beginning of period $ 15.98 $ 16.63 $ 13.99 $ 16.32 Net investment income (a) 0.06 0.03 0.11 0.05 Net realized and unrealized gain (loss) (b) (0.32 ) 1.27 1.62 1.56 Net increase (decrease) in net assets from operations (0.26 ) 1.30 1.73 1.61 Net asset value per Share, end of period $ 15.72 $ 17.93 $ 15.72 $ 17.93 Total return, at net asset value (c)(d) (1.63 )% 7.82 % 12.37 % 9.87 % Ratio to average net assets: Net investment income (e) 1.52 % 0.80 % 1.46 % 0.64 % Expenses (e) 0.85 % 0.85 % 0.85 % 0.85 % (a) Based on average Shares outstanding during the period. (b) The amounts reported for a Share outstanding may not (c) Based on the change in net asset value of a Share during the period. (d) Percentage is not (e) Percentage is annualized. |
Note 9 - Investing in Index Fut
Note 9 - Investing in Index Futures | 6 Months Ended |
Jun. 30, 2019 | |
Notes to Financial Statements | |
Derivative Instruments and Hedging Activities Disclosure [Text Block] | 9 - Investing i n Inde x Futures Substantially all of the Trust’s assets are invested in Index Futures. The Index Futures’ settlement value at expiration is based on the value of the S&P GSCI‑ER at that time. Therefore, the value of the Trust will fluctuate based upon the value of the S&P GSCI-ER and the prices of futures contracts and commodities underlying the S&P GSCI-ER. The commodities markets have historically been extremely volatile. For the six June 30, 2019 December 31, 2018, The following table shows the variation margin on open futures contracts, by risk exposure category, on the statements of assets and liabilities as of June 30, 2019 December 31, 2018: Asse t Derivative s Fai r Valu e Liabilit y Derivative s Fai r Value June 3 0 , 2019 Commodity contracts Receivable for variation margin on open futures contracts $ — Payable for variation margin on open futures contracts $ 11,385,911 December 31, 2018 Commodity contracts Receivable for variation margin on open futures contracts $ 920,643 Payable for variation margin on open futures contracts $ — The following table shows the effect of the open futures contracts, by risk exposure category, on the statements of operations for the three six June 30, 2019 2018: Statements of Net Realized Gain (Loss) Net Change in Unrealized Three Months Ended June 30, 2019 Commodity contracts Net realized gain (loss) from futures contracts $ (12,341,801 ) $ — Net change in unrealized appreciation/depreciation — (7,677,541 ) Three Months Ended June 30, 201 8 Commodity contracts Net realized gain (loss) from futures contracts $ 87,476,140 $ — Net change in unrealized appreciation/depreciation — 18,892,760 Six Months Ended June 30, 201 9 Commodity contracts Net realized gain (loss) from futures contracts $ (10,416,570 ) $ — Net change in unrealized appreciation/depreciation — 156,080,822 Six Months Ended June 30, 201 8 Commodity contracts Net realized gain (loss) from futures contracts $ 172,734,880 $ — Net change in unrealized appreciation/depreciation — (42,413,107 ) |
Note 10 - Investment Valuation
Note 10 - Investment Valuation | 6 Months Ended |
Jun. 30, 2019 | |
Notes to Financial Statements | |
Fair Value Disclosures [Text Block] | 1 0 - Investmen t Valuation FASB Accounting Standards Codification Topic 820, Fai r Valu e Measurement s an d Disclosure s Investments in Index Futures are measured at fair value using the last reported CME settlement price for Index Futures. U.S. Treasury bills are valued at the last available bid price received from independent pricing services. In determining the value of a fixed income investment, pricing services may Various inputs are used in determining the fair value of financial instruments. Inputs may may three three Level 1 Unadjusted quoted prices in active markets for identical assets or liabilities; Level 2 Inputs other than quoted prices included within Level 1 not Level 3 Unobservable inputs that are unobservable for the asset or liability, including the Trust’s assumptions used in determining the fair value of investments. Fair value pricing could result in a difference between the prices used to calculate the Trust’s net asset value and the prices used by the Trust’s underlying index, which in turn could result in a difference between the Trust’s performance and the performance of the Trust’s underlying index. The following table summarizes the value of each of the Trust’s investments by the fair value hierarchy levels as of June 30, 2019 December 31, 2018: Leve l 1 Leve l 2 Leve l 3 Total June 3 0 , 2019 Futures contracts (a) $ 39,557,573 $ — $ — $ 39,557,573 U.S. Treasury bills — 919,643,155 — 919,643,155 December 31 , 2018 Futures contracts (a) $ (116,523,249 ) $ — $ — $ (116,523,249 ) U.S. Treasury bills — 1,199,726,652 — 1,199,726,652 (a) Shown at the unrealized appreciation (depreciation) on the contracts. |
Significant Accounting Policies
Significant Accounting Policies (Policies) | 6 Months Ended |
Jun. 30, 2019 | |
Accounting Policies [Abstract] | |
Basis of Accounting, Policy [Policy Text Block] | A . Basi s o f Accounting The following significant accounting policies are consistently followed by the Trust in the preparation of its financial statements in conformity with U.S. GAAP. The preparation of financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Certain statements and captions in the financial statements for the prior periods have been changed to conform to the current financial statement presentation. |
Derivatives, Methods of Accounting, Derivatives Not Designated or Qualifying as Hedges [Policy Text Block] | B . Investmen t i n Inde x Futures The Trust seeks to track the results of a fully collateralized investment in futures contracts on an index composed of a diversified group of commodities futures, including energy commodities, precious and industrial metal commodities, agricultural commodities and livestock commodities. The Trust seeks to track the investment returns of the Index before payment of the Trust’s expenses and liabilities. The assets of the Trust consist of Index Futures and cash or other Collateral Assets used to satisfy applicable margin requirements for those Index Futures positions. Index Futures are exchange-traded index futures contracts on the S&P GSCI-ER, and are expected to include contracts of different terms and expirations. The Trust is expected to roll out of existing positions in Index Futures and establish new positions in Index Futures on an ongoing basis. When establishing positions in Index Futures, the Trust is required to deposit cash or other Collateral Assets with the broker as “initial margin.” On a daily basis, the Trust is obligated to pay, or entitled to receive, cash in an amount equal to the change in the daily settlement level of its Index Futures positions. Such payments or receipts are known as variation margin. Variation margin is recorded as unrealized appreciation (depreciation) and, if any, shown as variation margin receivable (or payable) on futures contracts in the Statements of Assets and Liabilities. When an Index Futures contract is closed, the Trust records a realized gain or loss based on the difference between the value of the Index Futures contract at the time it was opened and the value at the time it was closed. Index Futures are derivative instruments valued at fair value, which the Trustee has determined to be that day’s announced settlement price on the CME or any such other futures exchange listing Index Futures (the “Exchange”). If there is no announced settlement price for a particular Index Futures contract on that day, the Trustee will use the most recently announced settlement price unless the Trustee, in consultation with the Sponsor, determines that such price is inappropriate as a basis for valuation. The Trust’s derivatives are not designated as hedges, and all changes in the fair value are reflected in the statements of operations. For futures contracts, counterparty credit risk is mitigated because futures contracts are exchange-traded and the exchange’s clearing house acts as central counterparty to all exchange-traded futures contracts (although customers continue to have credit exposure to the clearing member who holds their account). Please refer to Note 9 for additional disclosures regarding the Trust’s investments in futures contracts. |
Cash and Cash Equivalents, Policy [Policy Text Block] | C. Cash The Trust considers cash as currencies deposited in one or more bank account. Cash is presented on the Statement of Cash Flows as unrestricted cash. |
Investment, Policy [Policy Text Block] | D. Short-Ter m Investments Short-term investments on the statements of assets and liabilities consist principally of short-term fixed income securities with original maturities of one year or less. These investments are valued at fair value. As of June 30, 2019 and December 31, 2018, the Trust had restricted short-term investments held at the broker of and respectively, which were posted as margin for the Trust’s Index Futures positions. |
Securities Transactions Income and Expense Recognition [Policy Text Block] | E . Securitie s Transactions an d Incom e Recognition Securities transactions are accounted for on the trade date. Realized gains and losses on investment transactions are determined using the specific identification method. Interest income, including amortization and accretion of premiums and discounts on debt securities, is recognized daily on the accrual basis. |
Income Tax, Policy [Policy Text Block] | F . Incom e Taxes The Trust is treated as a partnership for federal, state and local income tax purposes. No provision for federal, state, and local income taxes has been made in the accompanying financial statements because the Trust is not subject to income taxes. Shareholders are individually responsible for their own tax payments on their proportionate share of income, gain, loss, deduction, expense and credit. The Sponsor has analyzed the tax positions as of June 30, 2019, inclusive of the open tax return years, and does not believe that there are any uncertain tax positions that require recognition of a tax liability. |
Calculation of Net Asset Value [Policy Text Block] | G . Calculation o f Ne t Asse t Value The net asset value of the Trust on any given day is obtained by subtracting the Trust’s accrued expenses and other liabilities on that day from the value of ( 1 ) the Trust’s Index Futures positions and Collateral Assets on that day, ( 2 ) the interest earned on those assets by the Trust and ( 3 ) any other assets of the Trust, as of 4:00 p.m. (New York time) that day. The Trustee determines the net asset value per Share (the “NAV”) by dividing the net asset value of the Trust on a given day by the number of Shares outstanding at the time the calculation is made. The NAV is calculated each day on which NYSE Arca, Inc. (“NYSE Arca”) is open for regular trading, as soon as practicable after 4:00 p.m. (New York time). |
Distributions [Policy Text Block] | H. Distributions Interest and distributions received by the Trust on its assets may be used to acquire additional Index Futures and Collateral Assets or, in the discretion of the Sponsor, distributed to shareholders. The Trust is under no obligation to make periodic distributions to shareholders. |
Schedules of Investments (Una_2
Schedules of Investments (Unaudited) (Tables) | 6 Months Ended |
Jun. 30, 2019 | |
Notes Tables | |
Investment [Table Text Block] | Security Description Face Amount Fair Value U.S. Treasury bills (a)(b) 2.44% due 07/02/19 $ 20,000,000 $ 19,998,922 2.26% – 2.42% due 07/05/19 205,000,000 204,955,579 2.41% due 07/09/19 150,000,000 149,935,500 2.10% due 07/16/19 25,000,000 24,978,659 2.40% due 07/25/19 15,000,000 14,980,500 2.05% – 2.36% due 08/01/19 130,000,000 129,774,992 2.42% due 08/08/19 (a) 70,000,000 69,847,697 2.36% due 08/15/19 100,000,000 99,738,437 2.36% due 11/07/19 107,000,000 106,209,202 2.38% due 11/14/19 100,000,000 99,223,667 Total U.S. Treasury bills (Cost: $919,228,370) 919,643,155 Total Investments – 104.94% 919,643,155 Other Assets, Less Liabilities – (4.94)% (43,308,429 ) Net Assets – 100.00% $ 876,334,726 Securit y Descriptio n Fac e Amoun t Fai r Value U.S. Treasury bills (a)(b) 2.08% – 2.25% due 01/03/19 $ 16,000,000 $ 15,999,000 2.32% due 01/08/19 200,000,000 199,925,084 2.30% due 01/10/19 145,000,000 144,927,380 2.29% due 01/15/19 200,000,000 199,835,784 2.30% – 2.33% due 01/22/19 350,000,000 349,552,777 2.28% due 01/24/19 180,000,000 179,748,925 2.40% due 01/29/19 50,000,000 49,909,343 2.41% due 02/14/19 60,000,000 59,828,359 Total U.S. Treasury bills (Cost: $1,199,665,444) 1,199,726,652 Total Investments – 99.16% 1,199,726,652 Other Assets, Less Liabilities – 0.84% 10,139,957 Net Assets – 100.00% $ 1,209,866,609 |
Schedule of Derivative Instruments [Table Text Block] | Ne t Unrealize d Appreciation Number of Contracts Expiratio n Dat e Curren t Notiona l Amount (Depreciation) 37,905 September 17, 2019 $ 876,818,460 $ 39,557,573 Ne t Unrealize d Appreciation Number of Contracts Expiratio n Dat e Curren t Notiona l Amount (Depreciation) 57,905 March 15, 2019 $ 1,200,110,078 $ (116,523,249 ) |
Note 8 - Financial Highlights (
Note 8 - Financial Highlights (Tables) | 6 Months Ended |
Jun. 30, 2019 | |
Notes Tables | |
Financial Highlights [Table Text Block] | Three Months Ended Six Months Ended June 30, June 30, 2019 2018 2019 2018 Net asset value per Share, beginning of period $ 15.98 $ 16.63 $ 13.99 $ 16.32 Net investment income (a) 0.06 0.03 0.11 0.05 Net realized and unrealized gain (loss) (b) (0.32 ) 1.27 1.62 1.56 Net increase (decrease) in net assets from operations (0.26 ) 1.30 1.73 1.61 Net asset value per Share, end of period $ 15.72 $ 17.93 $ 15.72 $ 17.93 Total return, at net asset value (c)(d) (1.63 )% 7.82 % 12.37 % 9.87 % Ratio to average net assets: Net investment income (e) 1.52 % 0.80 % 1.46 % 0.64 % Expenses (e) 0.85 % 0.85 % 0.85 % 0.85 % |
Note 9 - Investing in Index F_2
Note 9 - Investing in Index Futures (Tables) | 6 Months Ended |
Jun. 30, 2019 | |
Notes Tables | |
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] | Asse t Derivative s Fai r Valu e Liabilit y Derivative s Fai r Value June 3 0 , 2019 Commodity contracts Receivable for variation margin on open futures contracts $ — Payable for variation margin on open futures contracts $ 11,385,911 December 31, 2018 Commodity contracts Receivable for variation margin on open futures contracts $ 920,643 Payable for variation margin on open futures contracts $ — |
Derivative Instruments, Gain (Loss) [Table Text Block] | Statements of Net Realized Gain (Loss) Net Change in Unrealized Three Months Ended June 30, 2019 Commodity contracts Net realized gain (loss) from futures contracts $ (12,341,801 ) $ — Net change in unrealized appreciation/depreciation — (7,677,541 ) Three Months Ended June 30, 201 8 Commodity contracts Net realized gain (loss) from futures contracts $ 87,476,140 $ — Net change in unrealized appreciation/depreciation — 18,892,760 Six Months Ended June 30, 201 9 Commodity contracts Net realized gain (loss) from futures contracts $ (10,416,570 ) $ — Net change in unrealized appreciation/depreciation — 156,080,822 Six Months Ended June 30, 201 8 Commodity contracts Net realized gain (loss) from futures contracts $ 172,734,880 $ — Net change in unrealized appreciation/depreciation — (42,413,107 ) |
Note 10 - Investment Valuation
Note 10 - Investment Valuation (Tables) | 6 Months Ended |
Jun. 30, 2019 | |
Notes Tables | |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table Text Block] | Leve l 1 Leve l 2 Leve l 3 Total June 3 0 , 2019 Futures contracts (a) $ 39,557,573 $ — $ — $ 39,557,573 U.S. Treasury bills — 919,643,155 — 919,643,155 December 31 , 2018 Futures contracts (a) $ (116,523,249 ) $ — $ — $ (116,523,249 ) U.S. Treasury bills — 1,199,726,652 — 1,199,726,652 |
Schedules of Investments (Una_3
Schedules of Investments (Unaudited) - Investments (Details) - USD ($) | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | |
U.S. Treasury bills, fair value | $ 919,643,155 | $ 1,199,726,652 | |||||
Other Assets, Less Liabilities | (43,308,429) | 10,139,957 | |||||
Net Assets | 876,334,726 | $ 1,232,799,956 | 1,209,866,609 | $ 1,481,700,514 | $ 1,436,128,442 | $ 1,393,408,765 | |
United States Treasury Bills 2.44% Due 07/02/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 20,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 19,998,922 | |||||
United States Treasury Bills 2.08% – 2.25% Due 01/03/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 16,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 15,999,000 | |||||
United States Treasury Bills 2.26%-2.42% Due 07/05/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 205,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 204,955,579 | |||||
United States Treasury Bills 2.32% Due 01/08/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 200,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 199,925,084 | |||||
United States Treasury Bills 2.30% Due 01/10/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 145,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 144,927,380 | |||||
United States Treasury Bills 2.41% Due 07/09/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 150,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 149,935,500 | |||||
United States Treasury Bills 2.29% Due 01/15/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 200,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 199,835,784 | |||||
United States Treasury Bills 2.30% – 2.33% Due 01/22/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 350,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 349,552,777 | |||||
United States Treasury Bills 2.10% Due 07/16/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 25,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 24,978,659 | |||||
United States Treasury Bills 2.28% Due 01/24/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 180,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 179,748,925 | |||||
United States Treasury Bills 2.40% Due 07/25/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 15,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 14,980,500 | |||||
United States Treasury Bills 2.40% Due 01/29/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 50,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 49,909,343 | |||||
United States Treasury Bills 2.05% - 2.36% Due 08/01/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 130,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 129,774,992 | |||||
United States Treasury Bills 2.41% Due 02/14/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 60,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 59,828,359 | |||||
United States Treasury Bills 2.42% Due 08/08/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 70,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 69,847,697 | |||||
US Treasury Bill Securities [Member] | |||||||
U.S. Treasury bills, fair value | 919,643,155 | $ 1,199,726,652 | |||||
United States Treasury Bills 2.36% Due 08/15/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 100,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 99,738,437 | |||||
United States Treasury Bills 2.36% Due 11/07/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 107,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | 106,209,202 | |||||
United States Treasury Bills 2.38% Due 11/14/19 [Member] | |||||||
U.S. Treasury bills, face amount | [1],[2] | 100,000,000 | |||||
U.S. Treasury bills, fair value | [1],[2] | $ 99,223,667 | |||||
[1] | A portion of the above United States Treasury bills are posted as margin for the Trust’s Index Futures positions as described in Note 2D. | ||||||
[2] | Rates shown are discount rates paid at the time of purchase. |
Schedules of Investments (Una_4
Schedules of Investments (Unaudited) - Investments (Details) (Parentheticals) - USD ($) | Jun. 30, 2019 | Dec. 31, 2018 |
Cost of short-term investments | $ 882,377,666 | $ 1,135,426,788 |
Liabilities percentage of net asset value | (4.94%) | 0.84% |
Total percentage of net asset value | 100.00% | 100.00% |
United States Treasury Bills 2.08% – 2.25% Due 01/03/19 [Member] | Minimum [Member] | ||
U.S. Treasury bills, effective rate | 2.08% | |
United States Treasury Bills 2.08% – 2.25% Due 01/03/19 [Member] | Maximum [Member] | ||
U.S. Treasury bills, effective rate | 2.25% | |
United States Treasury Bills 2.44% Due 07/02/19 [Member] | ||
U.S. Treasury bills, effective rate | 2.44% | |
United States Treasury Bills 2.32% Due 01/08/19 [Member] | ||
U.S. Treasury bills, effective rate | 2.32% | |
United States Treasury Bills 2.26%-2.42% Due 07/05/19 [Member] | Minimum [Member] | ||
U.S. Treasury bills, effective rate | 2.26% | |
United States Treasury Bills 2.26%-2.42% Due 07/05/19 [Member] | Maximum [Member] | ||
U.S. Treasury bills, effective rate | 2.42% | |
United States Treasury Bills 2.30% Due 01/10/19 [Member] | ||
U.S. Treasury bills, effective rate | 2.30% | |
United States Treasury Bills 2.29% Due 01/15/19 [Member] | ||
U.S. Treasury bills, effective rate | 2.29% | |
United States Treasury Bills 2.41% Due 07/09/19 [Member] | ||
U.S. Treasury bills, effective rate | 2.41% | |
United States Treasury Bills 2.30% – 2.33% Due 01/22/19 [Member] | Minimum [Member] | ||
U.S. Treasury bills, effective rate | 2.30% | |
United States Treasury Bills 2.30% – 2.33% Due 01/22/19 [Member] | Maximum [Member] | ||
U.S. Treasury bills, effective rate | 2.33% | |
United States Treasury Bills 2.10% Due 07/16/19 [Member] | ||
U.S. Treasury bills, effective rate | 2.10% | |
United States Treasury Bills 2.28% Due 01/24/19 [Member] | ||
U.S. Treasury bills, effective rate | 2.28% | |
United States Treasury Bills 2.40% Due 07/25/19 [Member] | ||
U.S. Treasury bills, effective rate | 2.40% | |
United States Treasury Bills 2.40% Due 01/29/19 [Member] | ||
U.S. Treasury bills, effective rate | 2.40% | |
United States Treasury Bills 2.41% Due 02/14/19 [Member] | ||
U.S. Treasury bills, effective rate | 2.41% | |
United States Treasury Bills 2.05% - 2.36% Due 08/01/19 [Member] | Minimum [Member] | ||
U.S. Treasury bills, effective rate | 2.05% | |
United States Treasury Bills 2.05% - 2.36% Due 08/01/19 [Member] | Maximum [Member] | ||
U.S. Treasury bills, effective rate | 2.36% | |
US Treasury Bill Securities [Member] | ||
Cost of short-term investments | $ 919,228,370 | $ 1,199,665,444 |
Percentage of net asset value | 104.94% | 99.16% |
United States Treasury Bills 2.42% Due 08/08/19 [Member] | ||
U.S. Treasury bills, effective rate | 2.42% | |
United States Treasury Bills 2.36% Due 08/15/19 [Member] | ||
U.S. Treasury bills, effective rate | 2.36% | |
United States Treasury Bills 2.36% Due 11/07/19 [Member] | ||
U.S. Treasury bills, effective rate | 2.36% | |
United States Treasury Bills 2.38% Due 11/14/19 [Member] | ||
U.S. Treasury bills, effective rate | 2.38% |
Schedules of Investments (Una_5
Schedules of Investments (Unaudited) - Open S&P GSCI ER Index Futures Contracts (Details) | 6 Months Ended | 12 Months Ended |
Jun. 30, 2019USD ($) | Dec. 31, 2018USD ($) | |
Expiration date | September 17, 2019 | March 15, 2019 |
Number of contracts | 37,905 | 57,905 |
Net unrealized appreciation | $ 39,557,573 | $ (116,523,249) |
Current notional amount | $ 876,818,460 | $ 1,200,110,078 |
Note 2 - Significant Accounti_2
Note 2 - Significant Accounting Policies (Details Textual) - USD ($) | Jun. 30, 2019 | Dec. 31, 2018 | |
Deposits with Clearing Organizations and Others, Securities | [1] | $ 36,867,601 | $ 64,242,167 |
[1] | Cost of short-term investments held at the broker (restricted): $36,850,704 and $64,238,656, respectively. |
Note 3 - Offering of the Shar_2
Note 3 - Offering of the Shares (Details Textual) | Jun. 30, 2019shares |
Shares Prescribed Aggregation | 50,000 |
Note 4 - Trust Expenses (Detail
Note 4 - Trust Expenses (Details Textual) | 6 Months Ended |
Jun. 30, 2019USD ($) | |
Sponsors Fee Annualized Accrual Rate Based on Net Asset Value of Trust | 0.75% |
Maximum [Member] | |
Legal Fees Per Year Maximum | $ 100,000 |
Note 8 - Financial Highlights -
Note 8 - Financial Highlights - Net Asset Value and Financial Highlights (Details) - $ / shares | 3 Months Ended | 6 Months Ended | |||
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | ||
Net asset value per Share, beginning of period (in dollars per share) | $ 15.98 | $ 16.63 | $ 13.99 | $ 16.32 | |
Net investment income(a) (in dollars per share) | [1] | 0.06 | 0.03 | 0.11 | 0.05 |
Net realized and unrealized gain (loss)(b) (in dollars per share) | [2] | (0.32) | 1.27 | 1.62 | 1.56 |
Net increase (decrease) in net assets from operations (in dollars per share) | (0.26) | 1.30 | 1.73 | 1.61 | |
Net asset value per Share, end of period (in dollars per share) | $ 15.72 | $ 17.93 | $ 15.72 | $ 17.93 | |
Total return, at net asset value(c)(d) | [3],[4] | (1.63%) | 7.82% | 12.37% | 9.87% |
Ratio to average net assets: | |||||
Net investment income(e) | [5] | 1.52% | 0.80% | 1.46% | 0.64% |
Expenses(e) | [5] | 0.85% | 0.85% | 0.85% | 0.85% |
[1] | Based on average Shares outstanding during the period. | ||||
[2] | The amounts reported for a Share outstanding may not | ||||
[3] | Based on the change in net asset value of a Share during the period. | ||||
[4] | Percentage is not | ||||
[5] | Percentage is annualized. |
Note 9 - Investing in Index F_3
Note 9 - Investing in Index Futures (Details Textual) - USD ($) | 6 Months Ended | 12 Months Ended |
Jun. 30, 2019 | Dec. 31, 2018 | |
Average Month-End Notional Amount of Derivative Contracts | $ 1,140,717,884 | $ 1,392,468,027 |
Note 9 - Investing in Index F_4
Note 9 - Investing in Index Futures - Effect of the Futures Contracts, by Risk Exposure Category, on the Statements of Financial Condition (Details) - USD ($) | Jun. 30, 2019 | Dec. 31, 2018 |
Receivable for variation margin on open futures contracts | $ 0 | $ 920,643 |
Commodity Contract [Member] | Receivable for Variation Margin on Open Futures Contracts [Member] | ||
Receivable for variation margin on open futures contracts | 0 | 920,643 |
Commodity Contract [Member] | Payable for Variation Margin on Open Futures Contracts [Member] | ||
Payable for variation margin on open futures contracts | $ 11,385,911 | $ 0 |
Note 9 - Investing in Index F_5
Note 9 - Investing in Index Futures - Effect of the Futures Contracts, by Risk Exposure Category, on the Statements of Operations (Details) - USD ($) | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | |
Net realized gain (loss) from futures contracts | $ (12,341,801) | $ 87,476,140 | $ (10,416,570) | $ 172,734,880 |
Net change in unrealized appreciation/depreciation on futures contracts | (7,677,541) | 18,892,760 | 156,080,822 | (42,413,107) |
Commodity Contract [Member] | ||||
Net realized gain (loss) from futures contracts | (12,341,801) | 87,476,140 | (10,416,570) | 172,734,880 |
Net change in unrealized appreciation/depreciation on futures contracts | 0 | 0 | 0 | 0 |
Commodity Contract [Member] | Net Realized Gain Loss from Futures Contracts [Member] | ||||
Net realized gain (loss) from futures contracts | 0 | 0 | 0 | 0 |
Net change in unrealized appreciation/depreciation on futures contracts | $ (7,677,541) | $ 18,892,760 | $ 156,080,822 | $ (42,413,107) |
Note 10 - Investment Valuatio_2
Note 10 - Investment Valuation - Valuation of the Trust's Investments by the Fair Value Hierarchy (Details) - USD ($) | Jun. 30, 2019 | Dec. 31, 2018 | |
Futures [Member] | |||
Investment, fair value | [1] | $ 39,557,573 | $ (116,523,249) |
US Treasury Bill Securities [Member] | |||
Investment, fair value | 919,643,155 | 1,199,726,652 | |
Fair Value, Inputs, Level 1 [Member] | Futures [Member] | |||
Investment, fair value | [1] | 39,557,573 | (116,523,249) |
Fair Value, Inputs, Level 1 [Member] | US Treasury Bill Securities [Member] | |||
Investment, fair value | 0 | 0 | |
Fair Value, Inputs, Level 2 [Member] | Futures [Member] | |||
Investment, fair value | [1] | 0 | 0 |
Fair Value, Inputs, Level 2 [Member] | US Treasury Bill Securities [Member] | |||
Investment, fair value | 919,643,155 | 1,199,726,652 | |
Fair Value, Inputs, Level 3 [Member] | Futures [Member] | |||
Investment, fair value | [1] | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | US Treasury Bill Securities [Member] | |||
Investment, fair value | $ 0 | $ 0 | |
[1] | Shown at the unrealized appreciation (depreciation) on the contracts. |