Investments in Affiliates (Tables)

6 Months Ended

Jun. 30, 2024

Investments in and Advances to Affiliates, Schedule of Investments [Abstract]

Summary of Transactions in, and Earnings from, Investments in Affiliates (Excluding Affiliated Money Market Funds)

The following is a summary of the transactions in, and earnings from, investments in affiliates for the three and six months ended June 30, 2024.

	Value 03/31/2024		Purchases at Cost		Proceeds from Sales			Change in Unrealized Appreciation (Depreciation)		Realized Gain (Loss)		Value 06/30/2024		Dividend Income
Invesco Short Term Treasury ETF	$	215,106,065	$	—	$	—		$	—	$	—	$	215,106,065	$	2,678,271
Investments in Affiliated Money    Market Funds:
Invesco Government & Agency    Portfolio, Institutional Class		793,347,723		736,035,413		(697,831,485	)		—		—		831,551,651		10,868,169
Total	$	1,008,453,788	$	736,035,413	$	(697,831,485	)	$	—	$	—	$	1,046,657,716	$	13,546,440

	Value 12/31/2023		Purchases at Cost		Proceeds from Sales			Change in Unrealized Appreciation (Depreciation)			Realized Gain (Loss)		Value 06/30/2024		Dividend Income
Invesco Short Term Treasury ETF	$	215,381,398	$	—	$	—		$	(275,333	)	$	—	$	215,106,065	$	5,444,710
Investments in Affiliated Money    Market Funds:
Invesco Government & Agency    Portfolio, Institutional Class		692,738,727		1,161,205,568		(1,022,392,644	)		—			—		831,551,651		19,989,299
Total	$	908,120,125	$	1,161,205,568	$	(1,022,392,644	)	$	(275,333	)	$	—	$	1,046,657,716	$	25,434,009

The following is a summary of the transactions in, and earnings from, investments in affiliates for the three and six months ended June 30, 2023.

	Value 03/31/2023		Purchases at Cost		Proceeds from Sales			Change in Unrealized Appreciation (Depreciation)			Realized Gain (Loss)		Value 06/30/2023		Dividend Income
Invesco Short Term Treasury ETF	$	141,505,177	$	—	$	—		$	(80,454	)	$	—	$	141,424,723	$	1,550,938
Investments in Affiliated Money    Market Funds:
Invesco Government & Agency    Portfolio, Institutional Class		1,002,772,527		1,119,210,361		(1,081,991,364	)		—			—		1,039,991,524		12,125,677
Total	$	1,144,277,704	$	1,119,210,361	$	(1,081,991,364	)	$	(80,454	)	$	—	$	1,181,416,247	$	13,676,615

	Value 12/31/2022		Purchases at Cost		Proceeds from Sales			Change in Unrealized Appreciation (Depreciation)		Realized Gain (Loss)		Value 06/30/2023		Dividend Income
Invesco Short Term Treasury ETF	$	141,250,406	$	—	$	—		$	174,317	$	—	$	141,424,723	$	2,909,431
Investments in Affiliated Money    Market Funds:
Invesco Government & Agency    Portfolio, Institutional Class		1,284,100,134		2,300,076,293		(2,544,184,903	)		—		—		1,039,991,524		25,136,288
Total	$	1,425,350,540	$	2,300,076,293	$	(2,544,184,903	)	$	174,317	$	—	$	1,181,416,247	$	28,045,719