AT&T shares slipped 2.2% in pre-market trading after SpaceX’s President and COO, Gwynne Shotwell, said on the company’s debut earnings call that SpaceX intends to construct ground-based cellular infrastructure - including towers, small-cell nodes, billing systems and core networks - to operate alongside its Starlink satellite service and directly take on the subscriber bases of AT&T, Verizon and T-Mobile in the roughly $600 billion annual U.S. wireless market.
On the call, Shotwell was explicit about competitive intent, saying: "I anticipate us being able to acquire quite a few of their customers, because I think our service will be better." That direct statement appears to have prompted investors to reassess the defensive positioning of incumbent wireless carriers.
The competitive threat has tangibility beyond rhetoric because SpaceX now controls 65 MHz of wireless spectrum acquired through a $19.6 billion EchoStar transaction. That deal received Federal Communications Commission approval in May 2026, providing SpaceX with a concrete spectrum foundation for a hybrid satellite-terrestrial network rather than relying solely on space-based connectivity.
Analysts had previously flagged satellite entrants as a growing source of competitive pressure for traditional carriers. In that context, AT&T had already been downgraded by one firm from "Outperform" to "Perform," with the downgrade noting rising competitive risks from low-Earth orbit satellite providers. Shotwell’s remarks on the earnings call served to crystallize those concerns for some market participants.
The market reaction was not isolated to AT&T. Shares of Verizon and T-Mobile also moved lower in after-hours trading following Shotwell’s comments, signaling a sector-wide repricing of competitive risk among major U.S. wireless operators. By contrast, the broader market showed modest gains on the day: the S&P 500 rose 0.5%, the Dow Jones Industrial Average increased 0.5% and the Nasdaq climbed 0.3%, indicating that the weakness in carrier stocks was company- and sector-specific rather than driven by a general market downturn.
AT&T’s stock traded at about $22.86 in pre-market action, a notable distance from its 52-week high of $29.79, as investors weighed the implications of a potential new competitor with both spectrum assets and ambitions to marry satellite and terrestrial networks. The combination of a direct competitive declaration from a well-capitalized, spectrum-equipped SpaceX and sympathy selling across the carrier group appeared to accelerate investor concerns about long-term subscriber retention for one of the country’s largest wireless operators.
Key points
- SpaceX announced plans to build ground-based cellular infrastructure to augment Starlink and compete for U.S. wireless subscribers.
- SpaceX holds 65 MHz of spectrum from a $19.6 billion EchoStar deal, approved by the FCC in May 2026, giving the company a spectral foothold for a hybrid network.
- The remarks led to declines in AT&T, Verizon and T-Mobile shares, while the broader U.S. market was modestly higher.
Risks and uncertainties
- Uncertainty around how the entry of a spectrum-equipped satellite operator will affect long-term subscriber retention and competitive dynamics in the wireless sector.
- Potential for further sector-wide share price volatility as investors assimilate the implications of an integrated satellite-terrestrial competitor.