TMUS vs CMCSA: which was the better investment?
T-Mobile US, Inc. against Comcast Corporation on real daily total-return data — every dividend reinvested, from Apr 19, 2007 to Jul 15, 2026.
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Frequently asked questions
Did TMUS beat CMCSA?
Yes — measured from Apr 19, 2007 to Jul 15, 2026 with dividends reinvested, TMUS came out ahead: $43,538 versus $27,776 from a $10,000 start. That gap compounds from a 7.9% annual return against 5.5%.
What would $10,000 in TMUS be worth today?
$10,000 invested in T-Mobile US, Inc. (TMUS) on Apr 19, 2007 would be worth about $43,538 as of Jul 15, 2026, a total return of 335.4% (7.9% per year). The same $10,000 in CMCSA would be worth $27,776.
Which was riskier — TMUS or CMCSA?
TMUS swung with an annualized volatility of 39.8% and a worst peak-to-trough drop of -86.3%; CMCSA ran at 29.1% volatility with a -60.8% maximum drawdown. Risk-adjusted (Sharpe ratio), that is 0.15 for TMUS vs 0.12 for CMCSA.
What data is this comparison based on?
Daily adjusted closing prices covering Apr 19, 2007 through Jul 15, 2026 — the full period where both assets have price history. Adjusted prices include dividends and splits, so these are total returns. The page refreshes with new market data every day.
Can I change the dates, amounts, or add monthly investing?
Yes — the interactive tool on this page is pre-loaded with TMUS vs CMCSA. You can set any start and end date, change the starting amount, add monthly contributions, or build a multi-asset portfolio and compare it against any benchmark.