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Combined Schedules of Investments | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 USD ($) Number shares | Dec. 31, 2019 USD ($) Number shares
Investment owned, at Fair value |  | $ 16,228,411 |  | $ 8,047,267 |
US Treasury Securities |  |  |  |  |
Investment owned, at Fair value |  |  |  | 5,344,368 |
Investment owned, Balance, Principal amount |  | 11,591,734 |  | 5,344,368 |
Futures Contracts |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  | 81,680 |  | 105,125 |
Futures Contracts | Baltic Exchange Panamax T/C Average Shipping Route Index Expiring January 31, 2020 [Member] |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  |  |  | (31,980) |
Futures Contracts | Baltic Exchange Panamax T/C Average Shipping Route Index Expiring March 31, 2020 [Member] |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  |  |  | 22,890 |
Futures Contracts | Baltic Exchange Capesize Time Charter Expiring January 31, 2020 [Member] |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  |  |  | 10,915 |
Futures Contracts | Baltic Exchange Capesize Time Charter Expiring February 28, 2020 [Member] |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  |  |  | (41,165) |
Futures Contracts | Baltic Exchange Capesize Time Charter Expiring March 31, 2020 [Member] |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  |  |  | (37,210) |
Futures Contracts | Baltic Exchange Panamax T/C Average Shipping Route Index Due July 26, 2019 |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  | 25,015 |  |  |
Futures Contracts | Baltic Exchange Panamax T/C Average Shipping Route Index Due August 30, 2019 |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ 33,835 |  |  |
Futures Contracts | Baltic Exchange Panamax T/C Average Shipping Route Index Due September 27, 2019 |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 30 |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ 31,945 |  |  |
Futures Contracts | Baltic Exchange Supramax T/C Average Shipping Route Expiring Due July 26, 2019 |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  | (5,565) |  |  |
Futures Contracts | Baltic Exchange Supramax T/C Average Shipping Route Expiring Due August 30, 2019 |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  | 5,250 |  |  |
Futures Contracts | Baltic Exchange Panamax T/C Average Shipping Route Index Due September 27, 2019 |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ 8,505 |  |  |
Futures Contracts | Baltic Capesize Time Charter Expiring July 26, 2019 |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 40 |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ 104,930 |  |  |
Futures Contracts | Baltic Capesize Time Charter Expiring August 30, 2019 |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  | 92,090 |  |  |
Futures Contracts | Baltic Capesize Time Charter Expiring September 27, 2019 |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  | 95,410 |  |  |
Futures Contracts | Baltic Exchange Supramax Average Shipping Route Expiring March 31, 2020 |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  |  |  | (5,750) |
Futures Contracts | Baltic Exchange Supramax Average Shipping Route Expiring March 31, 2020 |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  |  |  | (4,090) |
Futures Contracts | Baltic Exchange Supramax Average Shipping Route Expiring January 31, 2020 |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  |  |  | 1,125 |
Short Futures Contracts |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  | (326,457) |  | 15,878 |
Short Futures Contracts | US Treasury 2 Year Note |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  | (144,096) |  | 11,221 |
Short Futures Contracts | US Treasury 5 Year Note |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  | (182,361) |  | 4,657 |
Purchased Options |  |  |  |  |
Investment owned, at Fair value |  | $ 35,625 |  | $ 21,797 |
Purchased Options | US Treasury 10 Year Note |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 40 |  | 15 |
Investment owned, at Fair value |  | $ 35,625 |  | $ 21,797 |
Written Options Contracts | US Treasury 5 Year Note |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 25 |  |  |
Investment owned, at Fair value |  | $ 19,336 |  | 19,336 |
Investments |  |  |  |  |
Investment owned, at Fair value |  | 13,005,522 |  | 6,084,345 |
Assets in Excess of Other Liabilities |  |  |  |  |
Investment owned, at Fair value |  | 3,222,889 | [1] | 1,962,922 | [2]
Money Market Funds |  |  |  |  |
Investment owned, at Fair value |  | 1,378,163 |  | 718,180 |
Money Market Funds | First American US Treasury Obligations Fund Class X |  |  |  |  |
Investment owned, at Fair value |  | 1,095,625 | [3] | 551,232 |
Money Market Funds | First American US Treasury Money Market Fund Class Z |  |  |  |  |
Investment owned, at Fair value |  | 282,538 | [3] | $ 166,948 | [4]
Money Market Funds | BREAKWAVE DRY BULK SHIPPING ETF | First American US Treasury Obligations Fund Class X |  |  |  |  |
Investment owned, Balance, Shares | shares |  |  |  | 551,232 |
Investment owned, at Fair value |  |  |  | $ 551,232 |
Short-term Investments | US Treasury Securities |  |  |  |  |
Investment owned, at Fair value |  | 11,591,734 | [1] | 5,344,368 |
BREAKWAVE DRY BULK SHIPPING ETF |  |  |  |  |
Investment owned, at Fair value |  | 4,308,262 |  | 2,306,781 |
BREAKWAVE DRY BULK SHIPPING ETF | US Treasury Securities |  |  |  |  |
Investment owned, at Fair value |  |  |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ 391,415 |  | $ (105,125) |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Panamax T/C Average Shipping Route Index Expiring January 31, 2020 [Member] |  |  |  |  |
Investment owned, Balance, Contracts | Number |  |  |  | 30 |
Value investment owned, Appreciation/(Depreciation) |  |  |  | $ (31,980) |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Panamax T/C Average Shipping Route Index Expiring March 31, 2020 [Member] |  |  |  |  |
Investment owned, Balance, Contracts | Number |  |  |  | 30 |
Value investment owned, Appreciation/(Depreciation) |  |  |  | $ 22,890 |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Capesize Time Charter Expiring January 31, 2020 [Member] |  |  |  |  |
Investment owned, Balance, Contracts | Number |  |  |  | 35 |
Value investment owned, Appreciation/(Depreciation) |  |  |  | $ 10,915 |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Capesize Time Charter Expiring February 28, 2020 [Member] |  |  |  |  |
Investment owned, Balance, Contracts | Number |  |  |  | 35 |
Value investment owned, Appreciation/(Depreciation) |  |  |  | $ (41,165) |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Capesize Time Charter Expiring March 31, 2020 [Member] |  |  |  |  |
Investment owned, Balance, Contracts | Number |  |  |  | 35 |
Value investment owned, Appreciation/(Depreciation) |  |  |  | $ (37,210) |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Supramax T/C Average Shipping Route Expiring August 30, 2019 |  |  |  |  |
Investment owned, Balance, Contracts | Number |  |  |  | 15 |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Capesize Time Charter Expiring November 29, 2019 |  |  |  |  |
Investment owned, Balance, Contracts | Number |  |  |  | 30 |
Value investment owned, Appreciation/(Depreciation) |  |  |  | $ 12,500 |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Panamax T/C Average Shipping Route Index Due July 26, 2019 |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 30 |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ 25,015 |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Panamax T/C Average Shipping Route Index Due August 30, 2019 |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 30 |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ 33,835 |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Panamax T/C Average Shipping Route Index Due September 27, 2019 |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ 31,945 |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Supramax T/C Average Shipping Route Expiring Due July 26, 2019 |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 10 |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ (5,565) |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Supramax T/C Average Shipping Route Expiring Due August 30, 2019 |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 10 |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ 5,250 |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Panamax T/C Average Shipping Route Index Due September 27, 2019 |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 10 |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ 8,505 |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Capesize Time Charter Expiring July 26, 2019 |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 30 |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ 104,930 |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Capesize Time Charter Expiring August 30, 2019 |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 30 |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ 92,090 |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Capesize Time Charter Expiring September 27, 2019 |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 30 |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ 95,410 |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Supramax Average Shipping Route Expiring March 31, 2020 |  |  |  |  |
Investment owned, at Fair value |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  |  |  | $ (5,750) |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Supramax Average Shipping Route Expiring March 31, 2020 |  |  |  |  |
Investment owned, Balance, Contracts | Number |  |  |  | 5 |
Investment owned, at Fair value |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  |  |  | $ (4,090) |
BREAKWAVE DRY BULK SHIPPING ETF | Futures Contracts | Baltic Exchange Supramax Average Shipping Route Expiring January 31, 2020 |  |  |  |  |
Investment owned, Balance, Contracts | Number |  |  |  | 5 |
Investment owned, at Fair value |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  |  |  | 1,125 |
BREAKWAVE DRY BULK SHIPPING ETF | Short Futures Contracts |  |  |  |  |
Investment owned, at Fair value |  |  |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Short Futures Contracts | US Treasury 2 Year Note |  |  |  |  |
Investment owned, at Fair value |  |  |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Short Futures Contracts | US Treasury 5 Year Note |  |  |  |  |
Investment owned, at Fair value |  |  |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Purchased Options |  |  |  |  |
Investment owned, at Fair value |  |  |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Purchased Options | US Treasury 10 Year Note |  |  |  |  |
Investment owned, at Fair value |  |  |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Written Options Contracts | US Treasury 5 Year Note |  |  |  |  |
Investment owned, at Fair value |  |  |  |  |
BREAKWAVE DRY BULK SHIPPING ETF | Money Market Funds |  |  |  |  |
Investment owned, at Fair value |  | 1,095,625 |  | 551,232 |
BREAKWAVE DRY BULK SHIPPING ETF | Short-term Investments | US Treasury Securities |  |  |  |  |
Investment owned, at Fair value |  |  |  |  |
SIT RISING RATE ETF |  |  |  |  |
Investment owned, at Fair value |  | 11,920,149 |  | 5,740,486 |
SIT RISING RATE ETF | US Treasury Securities |  |  |  |  |
Investment owned, at Fair value |  | 11,591,734 |  | 5,344,368 | [1]
SIT RISING RATE ETF | Short Futures Contracts |  |  |  |  |
Value investment owned, Appreciation/(Depreciation) |  | $ (326,457) |  | $ 15,878 |
SIT RISING RATE ETF | Short Futures Contracts | US Treasury 2 Year Note |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 106 |  | 46 |
Value investment owned, Appreciation/(Depreciation) |  | $ (144,096) |  | $ 4,657 |
SIT RISING RATE ETF | Short Futures Contracts | US Treasury 5 Year Note |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 102 |  | 55 |
Value investment owned, Appreciation/(Depreciation) |  | $ (182,361) |  | $ 11,221 |
SIT RISING RATE ETF | Purchased Options |  |  |  |  |
Investment owned, at Fair value |  | 35,625 |  | 21,797 |
SIT RISING RATE ETF | Purchased Options | US Treasury 10 Year Note |  |  |  |  |
Investment owned, at Fair value |  | $ 35,625 |  | $ 21,797 |
SIT RISING RATE ETF | Written Options Contracts | US Treasury 5 Year Note |  |  |  |  |
Investment owned, Balance, Contracts | Number |  | 201 |  | 12 |
Investment owned, at Fair value |  | $ 19,336 |  | $ (5,906) |
SIT RISING RATE ETF | Investments |  |  |  |  |
Investment owned, at Fair value |  | 11,909,897 |  | 5,533,113 |
SIT RISING RATE ETF | Assets in Excess of Other Liabilities |  |  |  |  |
Investment owned, at Fair value |  | 10,252 | [1] | 207,373 | [2]
SIT RISING RATE ETF | Money Market Funds |  |  |  |  |
Investment owned, at Fair value |  | $ 697,615 |  | $ 6,095,260 |
SIT RISING RATE ETF | Money Market Funds | First American US Treasury Money Market Fund Class Z |  |  |  |  |
Investment owned, Balance, Shares | shares |  | 282,538 |  | 166,948 | [4]
Investment owned, at Fair value |  | $ 282,538 |  | $ 166,948 |
SIT RISING RATE ETF | Short-term Investments | US Treasury Securities |  |  |  |  |
Investment owned, at Fair value | [1] | 11,591,734 |  | 5,344,368 |
BREAKWAVE DRY BULK SHIPPING ETF |  |  |  |  |
Investment owned, at Fair value |  | 4,308,262 |  | 2,306,781 |
BREAKWAVE DRY BULK SHIPPING ETF | Investments |  |  |  |  |
Investment owned, at Fair value |  | 1,249,009 |  | 551,232 |
BREAKWAVE DRY BULK SHIPPING ETF | Assets in Excess of Other Liabilities |  |  |  |  |
Investment owned, at Fair value |  | $ 3,212,637 | [1] | $ 1,755,549 | [2]
BREAKWAVE DRY BULK SHIPPING ETF | Money Market Funds | First American US Treasury Obligations Fund Class X |  |  |  |  |
Investment owned, Balance, Shares | shares |  | 1,095,625 |  |  |
Investment owned, at Fair value |  | $ 1,095,625 |  |  |
[1] | All or a portion of this security is held as collateral for futures contracts and written options.
[2] | $-0- and $1,866,980, respectively, of cash is pledged as collateral for futures contracts
[3] | Annualized seven-day yield as of June 30, 2019.
[4] | Annualized seven-day yield as of December 31, 2019

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