BOSTON - United Way of Massachusetts Bay and Merrimack Valley, along with seven Fortune 500 corporate partners, officially launched the annual Trading Day for Charity, in which participating companies agree to donate to United Way a percentage of trade profits from one randomly selected date. The inaugural members of Trading Day include Brown Brothers Harriman, State Street Global Advisors, Pioneer Investments, Eaton Vance, Citigroup, Goldman Sachs and UBS. read more »