"The failure of Silicon Valley Bank (SVB) was not a surprise to regulators or investors who took the time to check the bank’s financial statements and footnotes. By March of 2021, unrealized debt securities losses for the bank had already begun to climb, reaching ($1,343) million by year-end December 2021, and leaping to ($15,160) million a year later, all the while the bank’s stockholders’ equity remained flat."