Shares rallied 8.4% after T-Mobile delivered notable upside across postpaid subscriber growth, ARPA expansion, and double-digit service revenue gains, signaling execution well ahead of investor expectations on both volume and profitability.

• Postpaid net account additions reached 217,000 in Q1, up 6% year-over-year, underpinning ongoing subscriber momentum.
• Postpaid ARPA (average revenue per account) grew 3.9% year-over-year, reflecting effective pricing and customer monetization.
• Postpaid service revenue increased 15% and total service revenue rose 11% versus the prior year, surpassing peers’ rates by a wide margin.
• Core adjusted EBITDA advanced by 12% year-over-year, with free cash flow margins holding at 24%.
• Capital return remained robust with $6 billion returned to shareholders through dividends and share repurchases during the quarter.