They do hold 32B in short term treasury bills though https://www.blackrock.com/cash/en-us/products/329365/ https://www.blackrock.com/cash/en-us/products/329365

They do hold 32B in short term treasury bills though https://www.blackrock.com/cash/en-us/products/329365/ https://www.blackrock.com/cash/en-us/products/329365/ These funds appear to be specifically for short term redemptions, if they turn over 3B in redemption's every 7 days then how are they meant to keep less then that in the banks