High-Quality Stocks to Buy That Are Trading Below Fair Value Even with that impressive performance, there’s still a great value here as AT&T’s trailing 12-month price-to-earnings ratio is just 8.79. Aiming High with 5G We mentioned the unfortunate topic of inflation earlier, and here’s a development that might make some folks uncomfortable. Specifically, the FAA is allowing AT&T to expand its 5G service around some airports, while airlines modify their aircrafts so that they’re less susceptible to 5G interference.