Rated investment grade, sold to junk buyers
The cost of AI infrastructure debt is now set by junk buyers, whose participation is the least reliable part of the capital structure.
QTS Realty Trust sold $3.9bn of bonds this week to fund a Georgia data centre tied to Microsoft. The bonds carry investment-grade ratings. They yielded about 7.23%. BlackRock is paying 7.53% on blue-chip paper sold in July for a Meta-linked Texas project. In both cases, underwriters placed the debt with high-yield investors as well as high-grade ones (Bloomberg). On our arithmetic, that is roughly the yield of the average junk bond. The high-yield index trades at 275bp over Treasuries and the ten-year is at 4.69%. So a bond the agencies call safe is clearing at the price of one they do not. There are two readings and they are not mutually exclusive. One: the natural investment-grade buyer base is full of this sector, so the deals need money from somewhere else. Two: investors do not believe the ratings, which rest on long leases from creditworthy tenants for buildings whose economics depend on those tenants still wanting them in 2040. Either way the identity of the marginal buyer matters. "We're seeing high-yield investors become tourists in investment-grade technology debt," Advent Capital's Steven Schweitzer told Bloomberg. Tourists go home. A high-yield fund buying IG paper for the carry is the first seller when its own market widens, and it has no mandate obligation to show up for the next deal. Companies have borrowed more than $410bn for data centres and AI this year on Bloomberg's count. That pipeline is now partly dependent on a buyer who is there opportunistically. What would make this benign: the deals keep clearing at these yields with genuine IG demand. What would not: the next one prices wider, or gets pulled.