"We believe carriers — particularly AT&T and, to a lesser degree, Verizon — will need to continue to spend on networks in order to maintain long-term competitiveness and, should 2016 play out as we expect, the odds of greater activity next year increase from a historical perspective." Crown Castle, American Tower and SBA Communications all fell hard in the stock market today. Crown Castle stock fell 2.2%, to 91.87, while American Tower stock dropped 2.8%, to 108.11, and SBA fell 2.3%, to 108.99. Crown Castle and American Tower touched record highs in July, above 102 for the former and above 118 for the latter. RELATED: Verizon, T-Mobile, Dish Strategic Talks On Hold As Auction Drags On AT&T, Verizon Get Their Wish: FCC Opens Up 5G Airwaves Spectrum Wild Cards May Add Supply, Impact Verizon, T-Mobile, AT&T