ADT, an Apollo-backed provider of monitored security services for homes and businesses, raised $1.5 billion by offering 105 million shares at $14, below the range of $17 to $19. The company had originally planned to sell 111 million shares. ADT plans to list on the NYSE under the symbol ADT. Morgan Stanley, Goldman Sachs, Barclays, Deutsche Bank, RBC Capital Markets, Citi, BofA Merrill Lynch and Credit Suisse acted as lead managers on the deal.