What is credit suisse ubs merger?

As an AI language model, I do not have access to current, real-time information, but as per the last available information, Credit Suisse and UBS, two of Switzerland's largest banks, had denied any possibility of a merger in recent years. However, there has been speculation in the past about a possible union between the two banks due to their similar business models and market positioning. Any potential merger would require regulatory approval and would have significant implications for the banking industry in Switzerland and around the world. Nevertheless, at the moment, there is no confirmed, official news about a Credit Suisse UBS merger.