Fidelity offers FDIC insurance for certain deposit accounts, such as cash management accounts and IRAs, up to $250,000 per account. Fidelity money market funds are not insured by the FDIC; instead, they are protected under SIPC (Securities Investor Protection Corporation), which covers customer assets if a brokerage firm fails, providing up to $500,000 per customer. This means that while your cash in Fidelity accounts is insured, investments in money market funds are not covered by FDIC insurance but are protected by SIPC.