What Is a Bank Run?

Picture the office pizza party. Thirty people, three boxes, and everything is fine as long as everyone wanders over a few at a time. Then somebody near the door says, a little too loudly, that the pizza is running out. Nobody was hungry a minute ago. Now everyone is in line, holding a paper plate like a ticket, and the people at the back are doing math.

A bank run is when many depositors try to withdraw their money at the same time because they fear the bank will fail. Banks lend out most of the money deposited with them and keep only a fraction on hand. No bank can repay every depositor at once, so if enough people ask together, even a healthy bank can run out of cash. The fear makes itself come true. Deposit insurance, which guarantees up to $250,000 per depositor per bank in the US, exists to stop that fear before it starts.

Why can’t a bank give everyone their money back at once?

Because the money isn’t sitting in a drawer with your name on it. When you deposit $1,000, the bank keeps a slice as cash and reserves and lends the rest out, as mortgages, car loans and business loans, or invests it in bonds. That is the business: it pays you a little interest and charges borrowers more. Since March 26, 2020, the Federal Reserve has required US banks to hold zero in reserves against deposits, though in practice they keep plenty for day-to-day needs.

On a normal day this works beautifully, because depositors don’t all show up at once. Some withdraw, some deposit, and the bank keeps enough cash for the difference, like a restaurant that seats 80 people because it knows the whole neighborhood won’t come for dinner on the same Tuesday. Our explainer on how money is created covers the other half of the trick: most of the money in your account was created by a bank making a loan in the first place.

How does a bank run start?

With a rumor, and then with arithmetic. Every depositor works out the same thing. If the bank is in trouble, the people who withdraw first get all their money, and the people who wait might get less, or have to wait for the government to sort it out. So even a depositor who thinks the bank is probably fine has a reason to withdraw, just in case everyone else does. Nobody wants to be the last person holding a paper plate.

That is why runs are so hard to stop once they begin. The bank may own perfectly good loans, but a 30-year mortgage can’t be turned into cash by Friday afternoon without selling it at a loss. Sell enough assets at a loss and a bank that was healthy on Monday really is in trouble by Wednesday. The fear doesn’t just predict the failure. It builds it, one withdrawal at a time, like a crowd that rushes for the exit and creates the stampede it was afraid of.

Into the weeds: liquidity versus solvency

Economists separate two problems. A bank is insolvent when what it owns is worth less than what it owes; no amount of patience fixes that. A bank is illiquid when what it owns is worth enough but can’t be turned into cash fast enough. Runs turn illiquid banks into insolvent ones by forcing fire sales. Central banks act as the “lender of last resort” to lend against good assets during a run, so that illiquidity doesn’t become insolvency.

What were the biggest bank runs in history?

The 1930s. From 1930 to 1933, about 9,000 US banks suspended operations, according to the FDIC, and depositors lost savings they had thought were as safe as the furniture. That works out to about six banks a day for four straight years, one roughly every four hours. That’s a bank gone between breakfast and lunch, another before supper, and two more while the town slept. Runs spread from town to town, because a closed bank in one place made people wonder about the bank in theirs. The 1946 film It’s a Wonderful Life made a run on a small-town bank famous enough that most Americans have seen one without ever standing in one, usually in December, on the couch, between commercials for gift wrap.

Northern Rock, 2007. On the morning of Friday, September 14, 2007, the Bank of England announced emergency support for Northern Rock, a British mortgage lender. The announcement meant to calm people. Instead, depositors lined up outside its branches, its website buckled and its phone lines jammed.

A parliamentary committee called it the first bank run in the United Kingdom since Victorian times, the last being Overend, Gurney & Co. in 1866. That was 141 years earlier. The last time British savers had queued outside a bank, the men wore top hats and the telephone hadn’t been invented. It stopped only when the government promised to guarantee every Northern Rock deposit. It turns out that announcing “please stay calm, everything is under control” works about as well at a bank as it does on an airplane hitting turbulence.

Silicon Valley Bank, 2023. On Thursday, March 9, 2023, depositors pulled about $42 billion from Silicon Valley Bank in a single day, and asked for roughly $100 billion more the next morning, according to testimony from the Federal Reserve’s vice chair for supervision. California regulators closed the bank on Friday, March 10, and the FDIC took it over. Nobody stood in line. The run happened on phones, spread through group chats of startup founders and investors, and moved faster than any queue on any sidewalk in history.

How fast is $42 billion in a day? About $486,000 a second, around the clock, more than six times the speed at which the US national debt grows. In $100 bills it would weigh about 420 tonnes, roughly a fully loaded jumbo jet, and stack about 28 miles high. A teller counting one $100 bill a second, with no lunch and no sleep, would need about 13 years to hand it all over. That’s long enough to wear out the counting thumb, the backup thumb and three pairs of reading glasses. In 2023 the depositors needed one thumb each.

How does deposit insurance stop bank runs?

By removing the reason to run. If the government guarantees your deposit, it doesn’t matter whether you’re first in line or last, so there is no reason to join the line at all. The Federal Deposit Insurance Corporation was created by the Banking Act of 1933, and federal insurance took effect on January 1, 1934, covering up to $2,500 per depositor. The limit has risen many times since. Today it is $250,000 per depositor, per insured bank, per ownership category, so a joint account and an individual account at the same bank are covered separately.

In $100 bills, the whole $250,000 weighs about 2.5 kilograms, a five-pound bag of flour. You could carry it out of a bank in one hand, which is exactly what the insurance is there to make sure you never have to do. Think of the insurance as a coat check with a government guarantee: lose the ticket, the line or the whole building, and you still get your coat back, as long as it’s a $250,000 coat or less.

Going from $2,500 to $250,000 sounds generous until you adjust it. After inflation, the original $2,500 is worth about $62,000 today, so the real coverage has grown about four times. Measured in gold, it has shrunk. In 1934, $2,500 bought about 71 ounces at the $35 price set at the end of that January. At the October 24, 2026 price of about $3,997, today’s $250,000 buys about 62 and a half, and the limit only pulls ahead if gold drops below about $3,500 an ounce. The government has raised the limit a hundred times over, which is a little like doubling a kid’s allowance every few years while the candy bar does the same, and then a bit more.

The FDIC says no depositor has lost a penny of insured money since 1934. That is a remarkable record, and it is the reason the movie-style run almost vanished in the United States for decades. The modern runs hit deposits above the limit: most of the money at Silicon Valley Bank belonged to companies with balances far over $250,000. In March 2023 the government ended up protecting all of that bank’s deposits anyway, which calmed things down and raised a fair question about what the limit is for.

What is deposit insurance in the UK, Canada, Australia and Europe?

Deposit protection limits, per depositor per bank, as of October 2026

Country	Scheme	Limit
United States	FDIC	$250,000
United Kingdom	FSCS (raised from £85,000 on December 1, 2025)	£120,000
Canada	CDIC	C$100,000
Australia	Financial Claims Scheme	A$250,000
New Zealand	Depositor Compensation Scheme (since July 1, 2025)	NZ$100,000
Euro area (Ireland, Germany, Netherlands and others)	National deposit guarantee schemes under EU rules	€100,000
Switzerland	esisuisse	CHF 100,000

Limits apply per depositor, per bank, with details on joint accounts and temporary high balances that differ by country. Check your own scheme before relying on a figure.

New Zealand only started its scheme in July 2025. Until then it was one of the few rich countries with no deposit insurance at all, which is the financial equivalent of a trampoline park with no net and a sign saying “jump responsibly.”

Can a bank run happen to gold?

Not to a coin in your own drawer. A bank deposit is a promise: the bank owes you money and has lent most of it to other people. A gold coin you hold is nobody’s promise; there is no one to run on, no line to stand in and no announcement that can make it disappear. That is the plain reason some people keep part of their savings in physical metal, alongside the bank, not instead of it.

Paper claims on gold are different. A gold account, a fund or a storage program is a promise too, and it is only as good as whoever made it. If you can’t hold it, ask who does. Our guide to storing gold and silver at home covers the other side of that trade, including the fact that a standard homeowners policy covers very little stolen metal.

Should you worry about a bank run?

Here is the fair answer. For most people in the United States, no. If your deposits at one bank are under $250,000 per ownership category, they are insured, and the FDIC has paid insured depositors in full every time since 1934, usually within days. Spreading larger balances across banks or account types keeps them covered. Bank failures are real but uncommon, and the big runs of the last twenty years mostly hit uninsured money and unusual banks.

The bigger lesson is about what a deposit is. It isn’t cash in a vault with your name on it; it’s a loan you made to a bank, backed by a government promise. Most days that is a perfectly good arrangement. It just helps to know which part of your money is a promise and which part isn’t, before somebody near the door says the pizza is running out.

Sources

• Bank suspensions 1930 to 1933 (about 9,000), deposit insurance from January 1, 1934 at $2,500, and the no-loss record: FDIC, 90 years. Current coverage: FDIC, deposit insurance.
• Reserve requirements cut to zero on March 26, 2020: Federal Reserve.
• Northern Rock, September 14, 2007, and the 1866 precedent: House of Commons Treasury Committee, “The run on the Rock”.
• Silicon Valley Bank, $42 billion withdrawn on March 9, 2023 and about $100 billion requested on March 10: testimony of Michael Barr, Federal Reserve Vice Chair for Supervision, to the Senate Banking Committee, March 28, 2023.
• UK limit of £120,000 from December 1, 2025: Bank of England (PRA). New Zealand scheme from July 1, 2025: Reserve Bank of New Zealand. Other limits from the national schemes (CDIC, Australian Financial Claims Scheme, EU Deposit Guarantee Schemes Directive, esisuisse).

Figures read October 24, 2026. Our own arithmetic: the weight, stack, per-second rate and counting time of $42 billion (about a gram and 0.11 millimeters per bill); six banks a day from 1930 to 1933; the weight of $250,000; the 1934 limit after inflation (CPI-U, 13.4 in 1934 and an estimated 334.4 in 2026, Bureau of Labor Statistics); and the limit in gold at $35 an ounce in 1934 and about $3,997 on October 24, 2026 (gold-api.com).

Questions people actually ask

What is a bank run in simple terms?

A bank run is when many depositors rush to withdraw their money at once because they fear the bank will fail. Because banks lend out most deposits, they can’t repay everyone at the same time, so the rush itself can bring the bank down.

What causes a bank run?

Fear that other depositors will withdraw first. A rumor, a loss, a falling share price or even an official announcement of help can start it. Each depositor has a reason to withdraw early just in case, which makes the run feed on itself.

Can a healthy bank fail in a bank run?

Yes. A bank can own good long-term loans and still be unable to turn them into cash quickly. Selling assets in a hurry means selling at a loss, which can turn a temporary cash problem into a real failure.

What was the biggest bank run in US history?

By speed, Silicon Valley Bank in March 2023, when depositors withdrew about $42 billion in one day and requested about $100 billion more the next morning. By scale of damage, the runs of the early 1930s, when about 9,000 US banks suspended operations from 1930 to 1933.

How much money is FDIC insured?

Up to $250,000 per depositor, per FDIC-insured bank, per ownership category. Individual accounts, joint accounts and certain retirement accounts at the same bank are insured separately.

Has anyone lost money in an FDIC-insured account?

According to the FDIC, no depositor has lost a penny of insured funds since federal deposit insurance began on January 1, 1934. Money above the insurance limit can be at risk when a bank fails.

Has the FDIC limit kept up with inflation?

Yes, after consumer-price inflation. The first limit, $2,500 in 1934, is worth about $62,000 in today’s dollars, and today’s $250,000 is about four times that. Measured in gold it has not: $2,500 bought about 71 ounces at $35 in 1934, while $250,000 buys about 62.5 ounces at the October 24, 2026 price of about $3,997.

What happened at Northern Rock?

On September 14, 2007, after the Bank of England announced emergency support for the British lender Northern Rock, depositors queued outside its branches to withdraw their savings. It was the first UK bank run since 1866, and it ended when the government guaranteed all Northern Rock deposits.

What is the deposit insurance limit in the UK?

£120,000 per person, per authorized bank, since December 1, 2025, under the Financial Services Compensation Scheme. It was £85,000 before that.

Can there be a bank run on gold?

Not on gold you hold yourself, because a coin in your possession isn’t anyone’s promise. Paper claims on gold, such as gold accounts or funds, depend on whoever holds the metal, so they carry the same kind of trust as a bank deposit.