THE PHILIPPINE STOCK EXCHANGE, INC., BANKERS ASSOCIATION OF THE PHILIPPINES, PHILIPPINE ASSOCIATION OF SECURITIES BROKERS AND DEALERS, INC., FUND MANAGERS ASSOCIATION OF THE PHILIPPINES, TRUST OFFICERS ASSOCIATION OF THE PHILIPPINES, AND MARMON HOLDINGS, INC., PETITIONERS, VS. SECRETARY OF FINANCE, COMMISSIONER OF INTERNAL REVENUE, AND CHAIRPERSON OF THE SECURITIES AND EXCHANGE COMMISSION, RESPONDENTS