How is it decided if the rate goes up or down?

All deposit products are provided by Webster Bank, N.A. ("Webster Bank"), an insured FDIC institution. BrioDirect is a sub-brand of Webster Bank. Webster Bank operates under the trade name BrioDirect. This trade name is used by, and refers to, Webster Bank, a single FDIC-insured bank.

Accounts that are opened via www.briodirectbanking.com and marketed by BrioDirect are Webster Bank accounts. Deposits in these accounts are made with Webster Bank. For purposes of determining how much FDIC insurance is applicable to your accounts, you need to consider all accounts maintained with Webster Bank, N.A., such as CD, checking, savings, BrioDirect online accounts and cash held in health benefits accounts with HSA Bank.