In case of the banks, fed cut the fed rate to 0%, then banks preceded to massively buy 10 year treasuries. Banks were speculating the fed wouldn’t risk raising

In case of the banks, fed cut the fed rate to 0%, then banks preceded to massively buy 10 year treasuries. Banks were speculating the fed wouldn’t risk raising rates too fast and bankrupt already weak banks that were speculating on the 10 years in the first place.