QUICK SPARK: SpaceX Spectrum Deal Triggers T-Mobile’s Worst Day Since 2013

T-Mobile US Inc. (NASDAQ: TMUS) experienced its worst stock decline since 2013, with shares dropping 13% to $149 following SpaceX's announcement of a deal to acquire nationwide 800 megahertz spectrum licenses from Grain Management. This deal, which is pending Federal Communications Commission approval, could introduce new competition for wireless carriers as SpaceX plans to integrate these low-band airwaves with its Starlink satellites. Additionally, T-Mobile's peers, AT&T Inc. (NYSE: T) and Verizon Inc. (NYSE: VZ), also saw significant declines of 11% and 10%, respectively.