SIPC protection covers the securities and cash held in a customer's brokerage account up to $500,000, including a $250,000 sublimit for cash, and it applies only if the brokerage firm itself fails, according to the Securities Investor Protection Corporation. It does not restore money lost because an investment fell in value. That distinction is the whole point of the program.
What is SIPC, and what does it actually insure?
The Securities Investor Protection Corporation is a nonprofit membership corporation, created under federal law in 1970, that steps in when a member brokerage firm fails and customer assets are missing. SIPC says it has been protecting investors since 1970 and currently covers the customers of more than 3,200 member firms.
The coverage is custodial, not economic. In the SEC's investor bulletin on SIPC basics, published June 7, 2023, the agency frames the protection as addressing "your risk of losing your securities and cash held by the firm if it fails or goes out of business." The assets in scope are the ordinary contents of a brokerage account: stocks, bonds, Treasury securities, registered mutual funds, exchange-traded funds and money market funds, plus cash deposited for the purpose of buying securities.
The ceiling is stated plainly in SIPC's own description of what it protects: "SIPC protects the securities and cash in your brokerage account up to $500,000. The $500,000 protection includes up to $250,000 protection for cash in your account to buy securities." So an account holding $400,000 of index funds and $90,000 of uninvested cash sits inside both limits. An account holding $300,000 of cash does not, because the cash sublimit stops at $250,000. Nearly all registered broker-dealers are SIPC members, per the SEC bulletin, though firms selling only mutual funds or variable annuities can be exceptions.
What falls outside the protection?
More than most investors assume. SIPC's own list of exclusions begins with the loss that investors actually experience most often: "market loss." It also excludes "promises of investment performance," "commodities or futures contracts," and investments held at a firm that is not a SIPC member.
The SEC's bulletin extends the same list to unregistered investments, fixed annuities, most crypto assets, bad investment advice, churning claims, and assets held outside the brokerage firm. Because crypto assets come up repeatedly in this context, one plain caveat belongs alongside that exclusion: crypto markets are volatile and losses are possible, and nothing in the SIPC framework changes that.
Read together, the exclusions describe a program built around a single failure mode. If a firm collapses and the securities that were supposed to be in an account are not there, SIPC works to restore them. If the securities are exactly where they should be and simply became less valuable, the program has nothing to say. SIPC also cannot act while a firm is still operating, and the SEC bulletin is explicit that SIPC is not a regulator.
How does a liquidation actually work?
The sequence is a court proceeding, not an insurance claim mailed to a call center. SIPC describes the steps on its own site, and they run roughly as follows.
- A liquidation "generally begins with the court appointing a Trustee for the broker-dealer," with SIPC providing oversight throughout.
- The trustee and staff "close the offices of the brokerage firm and work to take control of the brokerage firm's books and records." SIPC notes this stage can stretch from weeks into months when records are disorganized.
- The trustee seeks court approval of claim forms, then mails them "to customers who had an account with the brokerage firm within the previous 12 months" and opens an electronic claims process.
- Where possible, the trustee "may arrange to have some or all customer accounts transferred to another brokerage firm," and customers whose accounts move are notified promptly.
- Customers file claims. SIPC warns that "failure to file a claim on time may result in the loss of all or a portion of the claim."
Two practical consequences follow from that sequence. Accounts may be unavailable for a stretch while the trustee takes control of records, and the deadline for filing is real. The customer's own records are what make a claim provable, which is a durable argument for keeping statements and trade confirmations rather than assuming the firm will always have them.
How is SIPC different from FDIC deposit insurance?
The two programs are frequently confused because both carry a $250,000 figure, but they cover different institutions and different risks. The comparison below uses three criteria only: which institution's failure triggers coverage, the stated limit, and what the program does not reach. Each figure comes from the program's own materials: SIPC's for the first column, and the FDIC's deposit insurance resources for the second.
| Criterion | SIPC | FDIC deposit insurance |
|---|---|---|
| Triggered by | Failure of a member brokerage firm | Failure of an insured bank |
| Stated limit | $500,000 per customer per separate capacity, including a $250,000 cash sublimit | $250,000 per depositor, per insured bank, for each account ownership category |
| Does not cover | Market loss, promises of performance, commodities and futures, non-member firms | Non-deposit products; the FDIC directs depositors to its own resources for the full exclusion list |
The asymmetry worth remembering is that FDIC insurance protects the value of a deposit, while SIPC protects the existence of a position. A bank depositor who is made whole gets dollars back. A brokerage customer who is made whole gets the shares back, at whatever those shares are then worth.
What does "separate capacity" mean for the limit?
The SEC bulletin states the ceiling as $500,000 per customer per separate capacity, which is why the limit is not simply a per-person cap. Separate capacity refers to the legal character in which an account is held rather than the number of accounts a person opens at one firm. The mechanics of how a particular set of accounts is grouped are determined in the liquidation proceeding, not by the account holder, so this is a question for the trustee's claim process rather than one to answer from a statement.
What does this mean for a long-horizon portfolio?
Mostly it clarifies which risk is being managed. SIPC addresses custodial failure, a rare event with a defined remedy and a defined ceiling. It does not address the risks that dominate a multi-decade outcome: costs, concentration, and investor behavior during drawdowns. Treating SIPC coverage as a cushion against falling markets misreads the program entirely, because "market loss" is the first item on its exclusion list.
The verifiable facts an investor can check are narrow and worth checking: whether a firm is a SIPC member, what the limits are, and where account records are kept. The rest is unchanged by any protection scheme. This article is information and education, not investment advice, and it does not recommend any firm, fund, or security.
For a related risk perspective, read How Does SIPC Protect Investors When a Brokerage Fails?.
For more context, read What an Expense Ratio Really Costs Over Thirty Years.
