Bank Runs Explained
๐ 7 min read
Quick Answer
Your bank does not keep your money in a vault waiting for you. It lends most of it out. That works fine โ until enough people ask for their cash at once. A bank run can topple even a large, "safe" bank in a single day, as the world was reminded in 2023.
๐ก Think of it asโฆ
A coat-check that sold more tickets than it has coats, betting most people wonโt collect at the same time. The moment a crowd rushes the counter, the illusion collapses โ there were never enough coats for everyone at once.
Fractional-reserve banking
Banks keep only a fraction of deposits on hand and lend the rest. Your "balance" is mostly a promise, not cash sitting in a safe. The system relies on the assumption that depositors will not all want their money simultaneously.
How a run starts
Fear is the trigger. If depositors suspect a bank is in trouble, they rush to withdraw. Because the bank cannot return everyoneโs money at once, the rush itself can cause the failure โ a self-fulfilling prophecy, now accelerated by apps and social media.
The 2023 banking crisis
Silicon Valley Bank collapsed in days in 2023 after a digital-age run โ billions withdrawn by smartphone in hours. It spread fear across regional banks and, notably, Bitcoin rallied as some sought an asset outside the banking system entirely.
Why "not your keys" resonates
A bank run reminds people that bank deposits are claims that can be frozen, limited, or lost in a failure. Self-custodied Bitcoin is different: it is an asset you hold directly, with no bank standing between you and your money.
๐ Key takeaway
A bank run happens because banks lend out most deposits; if everyone withdraws at once, the bank fails โ as SVB showed in 2023. It is the real-world reason self-custody ("not your keys, not your coins") resonates.
What it means for you
Bank failures and deposit freezes are a real risk in many economies. Understanding why banks are fragile explains the appeal, across Asia, of holding some savings in an asset no bank can freeze โ paired with proper self-custody.
Frequently asked questions
Is my money safe in a bank?โผ
Usually, thanks to deposit insurance up to a limit and regulation โ but insurance has caps, payouts can take time, and confidence can vanish fast. Diversification, including some self-custodied assets, is how many people manage that risk.
Did Bitcoin really rise during the 2023 banking crisis?โผ
Yes โ Bitcoin rallied notably during the March 2023 turmoil as some investors sought an asset outside the banking system. It was a vivid example of its "banking-crisis hedge" narrative, though not a guarantee.
How does Bitcoin avoid the bank-run problem?โผ
Self-custodied Bitcoin is not a deposit lent out by anyone โ you hold the asset directly. There is no fractional reserve and no counterparty that can run out of your money.