T-Mobile Q2 Results Miss; Analysts Slash Forecasts Amid Legacy Plan Migration Risk

What happened

T-Mobile reported mixed Q2 results, prompting analysts to cut their forecasts as the company navigates the mid-July forced migration of over 8 million legacy plan customers. While Q1 2026 showed strong cash generation and ARPA growth to $151.93, postpaid account churn had already risen to 1.04%, signaling retention pressure. The market now focuses on Q3 churn data, expected in late October, to determine whether the monetization strategy holds without a sustained customer exodus. Verizon's simultaneous push with simpler plans and fee removals further intensifies the competitive headwinds during this critical period. The stock has fallen 27% from its 2025 peak, trading near $168.50, reflecting increased uncertainty about the sustainability of capital returns and customer retention.

Implication

The near-term setup remains binary: if Q3 postpaid account churn stays at or below Q1's 1.04% and ARPA remains above $152, the buyback program and per-share compounding can support the stock. However, if churn ticks above 1.10%, the thesis that pricing power offsets customer losses breaks, and the stock could re-rate to $125 in a bear scenario. The recent analyst cuts reflect growing skepticism that TMUS can execute this migration without significant customer losses, especially with Verizon's aggressive counter-moves. For long-term holders, the large capital return authorization ($18.2B) provides a floor, but only if free cash flow remains robust; any sign of buyback slowdown would accelerate downside. Patience is warranted: the next three months will reveal whether TMUS's legacy-plan repricing is a value-creation event or a strategic misstep.

Thesis delta

The DeepValue master report's WAIT rating and conviction remain appropriate, but the Q2 results and analyst downgrades introduce incremental downside risk. The previously identified 'Q3 churn print' as the key catalyst is now more critical, and the probability of a bear outcome has increased from 30% to roughly 40% given the mixed Q2 and competitive pressure. The margin of safety has narrowed: the stock at $168.50 is closer to the base case of $175, leaving limited upside if churn disappoints.