Foreign share depot / securities account with bank - is that a deposit account or custodial account in Turbotax language?

If you have a bank in a foreign country with checking account, savings account and a securities account = a depot for freely tradable stocks and shares, is the latter a deposit account or a custodial account?
Elsewhere in the forum a custodial account was described as "an arrangement for holding a financial instrument, contract or investment ... for the benefit of another person", which seems to describe what the bank is doing for me!?