Banks are strange businesses. They take your money, lend most of it to strangers, keep a thin slice as reserve, and then promise you can have it all back whenever you want. This works perfectly – until it does not. And when it does not, the results are spectacular in the worst possible way. In 2023 alone, Silicon Valley Bank, Signature Bank, and First Republic collapsed in a matter of days. Credit Suisse, a 167-year-old institution, was forced into a shotgun merger. These were not small-town banks run by amateurs. They had risk committees, chief risk officers, and thick binders of regulatory compliance. None of it mattered when the fundamental trust broke down. If you invest in bank stocks – or simply keep your money in a bank – understanding why banks fail is not optional. It is basic financial literacy.