Financial institutions can offer CDARS because they are members of a special network.
When you place a large deposit with a network member, that institution uses CDARS to place your funds into certificates of deposit issued by banks in the network. This occurs in increments of less than the standard FDIC insurance maximum to ensure that both principal and interest are eligible for full FDIC insurance.
Other network members do the same thing with their customers' deposits. With the help of a sophisticated matching system, network members exchange funds. This exchange occurs on a dollar-for-dollar basis, so that the equivalent of your original deposit comes back to your institution and effectively stays local (meaning the full amount can support lending initiatives that build a stronger local community). Alternatively, with your consent, network members can receive fee income instead of matching deposits. In either case, the full amount of your original deposit becomes eligible for complete FDIC protection and you receive just one regular statement detailing all your holdings.
Funds may be submitted for placement only after a depositor enters into an agreement with a network member bank. CDARS is a registered service mark of Promontory Interfinancial Network, LLC.