NEW YORK--(BUSINESS WIRE)--National Holding Corporation (NASDAQ:NHLD) (“National” or the “Company”), a leading full service independent brokerage, investment banking and asset management firm providing diverse services including tax preparation, today announced its financial results for the fiscal third quarter ended June 30, 2015. Third Quarter Fiscal 2015 Financial Highlights Revenue of $42.3 million, versus $46.6 million for the third quarter of fiscal 2014 and $42.9 million for the second q