It was another down year for mergers and acquisitions, but Wall Street is optimistic that the lengthy lull is coming to an end. internal-storyline-no, Mergers, Acquisitions and Divestitures, Initial Public Offerings, Goldman Sachs Group Inc, JPMorgan Chase & Company, Morgan Stanley, UBS AG It was another down year for mergers and acquisitions, but Wall Street is optimistic that the lengthy lull is coming to an end. NYT > Business