Cocos and bank capital: a belated explainer
A few weeks ago, in a piece about Deutsche Bank's recent difficulties , I commented about its use of so-called "coco bonds" - contingent convertible bonds. I had over-simplified my description, and was promptly taken to task for doing so by @creditmacro on Twitter. He provided me with a detailed explanation of what coco bonds are and how they work. This piece draws heavily on his input. All of the quotations are from him unless otherwise stated. His full write-up can be found in Related Reading at the foot of this post. I'm also indebted to Martien Lubberink for pointing me to the capital structure diagram. In the aftermath of the financial crisis, regulators around the world recognised that banks were insufficiently capitalised. The proportion of equity (shareholders' funds) on the liability side of their balance sheets was distressingly low, which exposed their creditors - whose claims make up the rest of the bank's liabilities - to the risk of losses i