DALLAS, May 25 /PRNewswire-FirstCall/ -- The executive management of SWS Group, Inc. (NYSE: SWS) will make a presentation at the Bank of America Merrill Lynch Smid (Small and Mid) Cap Conference in Boston at 8:50 a.m. EDT (7:50 a.m. CDT) on Tuesday, June 8. The conference is being held at the InterC