AT&T Inc. shares experienced a significant decline as investors re-evaluated the competitive landscape in U.S. broadband and wireless markets, largely driven by speculation surrounding SpaceX's potential initial public offering (IPO). The increasing focus on SpaceX's Starlink satellite internet service has heightened fears that it could disrupt traditional telecom networks. Analysts, including Oppenheimer's Timothy Horan, have warned that Starlink's improving speed, latency, and global coverage pose a long-term threat to AT&T's broadband and mobile subscriber growth. Horan downgraded AT&T's stock rating and cut his price target, citing structural risks in broadband markets as satellite providers approach mass-market adoption. This concern has also impacted competitors like Verizon and T-Mobile. The potential SpaceX IPO could formally bring Starlink's financial strength and expansion plans into public market focus, potentially accelerating subscriber churn for legacy operators. Despite AT&T's commitment of over $250 billion to fiber and wireless infrastructure over five years, aiming to reach over 60 million fiber locations by 2030, the market is questioning the long-term viability of these investments if competition intensifies and pricing pressure mounts, potentially affecting free cash flow and shareholder returns.