Short answer
FDIC deposit insurance protects insured deposits when an FDIC-insured bank fails; SIPC protects securities and eligible cash when a member brokerage fails and SIPC steps in. The distinction is deposit protection versus brokerage-failure protection—not two interchangeable guarantees for everything in a financial account. SIPC expressly excludes market losses. 1 2
On this page
At a glance
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| Question | FDIC | SIPC |
|---|---|---|
| Covered institution? | FDIC-insured bank | SIPC-member brokerage |
| Protected assets? | Insured deposits | Securities and cash held to buy securities |
| Stated limit? | $250,000 per depositor, bank, and ownership category | $500,000, including up to $250,000 in eligible cash |
| Failure process? | FDIC works to preserve access to insured deposits | SIPC must step in; customer must file a claim |
These are the US limits stated in the supplied excerpts, not independently verified 2026 figures. 1 2
What each thing is
FDIC insurance attaches to qualifying deposits, rather than everything a bank might hold or offer. SIPC protection concerns customers’ securities and cash held to buy securities at a member brokerage. Membership and asset eligibility therefore matter alongside the institution’s failure. 1 2
Key differences
The limits have different structures. FDIC combines a depositor’s deposits in the same ownership category at the same insured bank. SIPC’s stated $250,000 cash protection sits inside its $500,000 total—it is not an additional allowance. The supplied SIPC introduction does not explain aggregation across multiple accounts. 1 2
How to tell them apart
Identify the asset and the institution: an insured bank deposit points toward FDIC coverage; securities or cash held to buy them at a member brokerage point toward SIPC protection. Then check the applicable conditions. This is a starting rule, not a complete coverage determination: FDIC ownership categories and SIPC eligibility can change the answer. 1 2
Where they overlap
Both address an institution’s failure and impose limits on protection. Cash appears in both descriptions, but its setting matters: bank deposits under FDIC rules versus brokerage cash intended to buy securities under SIPC rules. Calling money simply “cash” does not establish which protection applies. 1 2
Edge cases
A retirement-account label does not by itself identify the protection. The FDIC lists certain retirement accounts, including IRAs, as an ownership category, but separately excludes stock and mutual-fund investments from deposit insurance. SIPC’s conditions instead turn on member-brokerage status and eligible securities or cash. 1 2
Why the distinction exists
The programs address different failure settings. FDIC describes deposit insurance as supporting financial-system stability and public confidence, with rapid access to insured deposits after a bank closes. SIPC describes protection for customers of failed brokerages, available through a claim when it intervenes. Those different purposes explain the different coverage questions. 1 2
Common misconceptions
Neither label means every asset is protected. FDIC excludes investments such as stocks and bonds. SIPC does not reimburse ordinary market losses or enforce promises of investment performance, and it excludes commodities and futures contracts. A covered brokerage can hold investments whose falling prices are not a SIPC claim. 1 2
Examples
Hypothetically, one person has two deposits totaling $300,000 in the same ownership category at one insured bank. They are combined, leaving $50,000 above the excerpt’s stated FDIC limit. Separately, a customer’s stocks fall in value while their member brokerage remains operating: that market loss is not protected by SIPC. 1 2