That leaves moves such as carving out the group's assets and transferring them into a joint venture with investors, similar to what other Wall Street banks did with some trading units in the years following the financial crisis. But the CEO will struggle to raise investor money no matter what option he chooses, according to finance executives and analysts. Global markets have become more volatile as central banks raise interest rates and the war in Ukraine spurs geopolitical havoc. The value of US mortgage-backed securities has fallen as the Federal Reserve -- long the industry's biggest buyer -- halts its purchases. "The chances of Credit Suisse attracting third-party capital in current market conditions are slim to non-existent," said David Benson, a former senior banker at Credit Suisse and Nomura Holdings Inc.