SBA Communications just completed the balance-sheet event the tower sector has been waiting for, and the operating print that arrived with it is less triumphant. The company issued its first investment-grade senior notes after quarter end and took an S&P upgrade to BBB. That graduation converts a historically secured capital structure into an unsecured funding platform. The equity has been priced as if the domestic leasing engine were still compounding. It is not. Domestic site leasing contracted as Sprint consolidation and the full removal of EchoStar contracted rent washed through the book.
International leasing is doing the work the United States book used to do. Site leasing revenue rose to $664 million, but the entire increment came from the Millicom-backed international portfolio while domestic leasing fell. Adjusted funds from operations, the cash earnings measure tower investors actually underwrite, slipped to just over three per share. The mix shift toward lower-margin international towers also pulled tower cash-flow margin below eighty percent. The consequence for shareholders is that headline leasing growth no longer maps to per-share cash compounding the way it did before the churn cycle.
Management still raised the full-year outlook for site leasing and AFFO per share, citing higher straight-line rent and a slightly lighter interest bill after the notes issue. Net leverage sits at 6.4 times annualized adjusted EBITDA, inside the stated target band, with more than a billion of unused repurchase authorization. The open question is whether the investment-grade reset and a second-half repurchase restart can carry the equity until United States organic leasing turns, or whether the market is correctly treating this as a longer trough that lasts until the next spectrum auction cycle.