Explainer: AT-1 bonds, what they mean for investors and why Yes Bank is in trouble

AT-1 bonds are a type of subordinated debt issued by banks to raise capital. These bonds are different from regular loans because they are subordinate to other creditors, meaning they are paid back only after all other debts are settled. In the event of a bank's failure, investors in these bonds can face significant losses, including a complete write-off of their principal amount.

The recent Supreme Court ruling allowing Yes Bank to write off ₹8,415 crore of its AT-1 bonds has raised concerns about the safety of such investments. This decision highlights the critical risk that investors face when buying these bonds, as the bank's financial troubles can lead to the erosion of their capital. It is important for investors to understand these risks before investing in bank debt instruments.

For investors, this development serves as a reminder to carefully evaluate the financial health of a bank before purchasing its bonds. The write-off has increased scrutiny on the bank's capital adequacy and its ability to meet its obligations. Going forward, investors should watch for updates on Yes Bank's recovery plan and its efforts to restore investor confidence.