The U.S.-listed ETFs, which provide investors with exposure to bitcoin’s price without requiring them to hold the coins themselves, drew more than $850 million last week, Bloomberg News reported Monday (Aug. 10).

These inflows, the highest level since April, came after the revelation of a breach involving Coldcard wallets made by Coinkite that drained about $130 million in bitcoin. According to Bloomberg, this has led some analysts to argue investors could be seeking the shelter of regulated ETFs.

“The Coldcard hack could make spot Bitcoin ETFs a more appealing option for some investors, including even some longtime…