Key Highlights

  • AT&T (NYSE:T) fell between about 5% and 6% on Wednesday, October 21, 2026, even though third-quarter adjusted EPS of USD 0.65 and revenue of USD 32.3 billion beat consensus estimates.
  • Revenue rose 5.3% year on year and adjusted EPS rose 20.4%, while the company raised its 2026 adjusted EPS outlook to about USD 2.40, alongside its best consolidated service revenue growth in more than four years.
  • Postpaid phone net additions of 379,000 came in slightly below expectations, and the stock had fallen about 4.6% before the open on the subscriber figure.
  • The decline came on a day when the Dow rose 0.69%, and other large carriers fell about 3%, pointing to a sector concern rather than a company-specific miss.

A Clean Beat Met by Selling

AT&T (NYSE:T) reported third-quarter results before the open on Wednesday, October 21, 2026. Revenue rose 5.3% to USD 32.3 billion, and adjusted EPS rose 20.4% to USD 0.65, both ahead of consensus estimates. The company described the period as its best consolidated service revenue growth in more than four years. It also raised its 2026 adjusted EPS outlook to about USD 2.40. Against those figures, postpaid phone net additions of 379,000 fell slightly short of estimates. The shares were down about 4.6% before the open and closed between about 5% and 6% lower, depending on the measure. The fall contrasted with the broader market, where the S&P 500 gained 0.58% and the Nasdaq Composite gained 1.05%.

Why Subscriber Growth Outweighed Earnings

For AT&T (NYSE:T), investors value the business on durable cash flows from wireless and fibre subscribers, so a small shortfall in phone additions can matter more than a profit beat. A postpaid phone customer is a monthly contract subscriber, the most profitable segment in US wireless. Earnings per share can rise through cost cuts, lower interest expense and fewer shares, while subscriber growth signals future revenue. The second pressure was competitive. SpaceX (NASDAQ:SPCX) is pushing Starlink into direct-to-phone mobile service, after agreeing in September 2025 to buy wireless spectrum licences from EchoStar for about USD 17 billion. Satellite service could lower the cost of rural coverage, which may weaken pricing power for incumbent carriers. That threat reprices terminal value, meaning the value of cash flows many years ahead.

Risks and What to Watch

The first risk for AT&T (NYSE:T) is that slower phone additions persist as promotional offers from rival carriers continue. The second is the Starlink question: the timetable, coverage and price of satellite mobile service are not yet clear, and investors may keep applying a discount until they are. The third is rates. The Fed raised its target range to 3.75% to 4.00% on Wednesday, September 16, 2026, and the 10-year Treasury yield near 5.1% raises the cost of carrying telecom debt and competes with dividend yields. Investors should watch the Fed decision on Wednesday, October 28, 2026, the midterm elections on Tuesday, November 3, 2026, and any detail on Starlink mobile pricing.

Where Things Stand

The answer is that the market looked past a profit beat and focused on slightly weaker phone additions and a new satellite competitor. AT&T (NYSE:T) still raised its 2026 adjusted EPS outlook to about USD 2.40, so the debate is about long-term growth rather than this year's earnings. The next catalysts are the Fed decision on October 28, the midterm elections on November 3 and further disclosure on Starlink mobile plans. Outlooks are company forecasts, not guarantees, and this is not investment advice.