The Department of Homeland Security-led "Operation Red Sunset" examined whether Bitmain's machines could enable espionage or grid sabotage.
The launch lands amid steep drawdowns in bitcoin and ether, adding risk around timing for highly leveraged ETPs.
Spot bitcoin exchange-traded funds in the U.S. posted their second-largest daily outflow since their inception.
Retail investors have sold about $4 billion of spot BTC and ETH ETFs in November — the main driver of the latest crypto market correction.
Bitcoin fell below $86,000 after the delayed US jobs data pointed to persistent inflation, chipping away hopes for a December rate cut.