By Elliot Gulliver-Needham Swiss banks UBS and Credit Suisse have completed their merger after over a year, finally bringing an end to the ordeal. Credit Suisse saga began last year after a delayed annual report revealed “material weaknesses” at the bank. It published the warning at the worst possible time, as investors were already shaken by the collapse of Silicon Valley Bank. Credit Suisse’s shares plunged after the warning. At the time, the Swiss National Bank said that the takeover would be the best way to restore the confidence in financial markets, and there had long been rumours of a p…