TMUST-Mobile US, Inc.

$146.58-34% 1Y
Latest close: a new 52-week lowOct 23, 2026what changed →

What is the market doing?

Mixed

No clear lean: nothing decisive, though in a downtrend (−22% vs 200-day).

1 to watch, 2 neutral
TrendDowntrendderived · Oct 23, 2026

In a downtrend, below its 50- and 200-day averages. Price is −22% vs its 200-day average.

Insider conviction−$138K (90 days to Oct 22, 2026)SEC EDGAR · Oct 22, 2026

Insiders were net sellers over the 90 days ending Oct 22, 2026; selling is often routine (taxes, diversification).

Short interest1.3% of sharesFINRA · Sep 30, 2026

Lightly shorted, settled Sep 30, 2026, a few days of normal trading to cover. Down 21% since the previous count, down from 1.8% of shares outstanding three months ago.

Against the whole market›

Percentile against every name Ryufin tracks. Higher is better; the tick marks the middle of the market. Context, not one of the checks above.

1-year returnbottom 10% of the market
vs 200-day avgbehind 86% of the market

Where this answer is blind. Insider selling is often routine (taxes, diversification); only cluster buying is a strong tell.

How TMUS is trading

T-Mobile US, Inc. is −34% over the past year while the S&P 500 is +16%: 50 points behind the market.

−34%

1-year return · S&P 500 +16%

vs 200-day average
−22%

vs 200-day average · a clear downtrend

RSI (14)
37

RSI (14) · neutral

Below its 52-week high
35%

Below its 52-week high

Oct 15, 2024$146.58 – $266.80 · dashed line: 200-day averageOct 23, 2026
Details›
Last close2026-10-23
$146.58
1 monthS&P 500 −0.94%
−11%
1 yearS&P 500 +16%
−34%
5 yearsS&P 500 +86%
+31%
vs 50-day average$170.52
−14%
52-week high
$226.63
52-week low
$146.58
Annualised volatility
31%
Insider selling, net, 6 monthsForms 3/4/5 to 2026-10-22
$117K
Calendar-year price return
YearReturn
2026 (year to date)−27%
2025−6.6%
2024+40%
2023+15%
2022+21%
2021−14%
2020+72%
2019+23%
2018+0.16%
2017+10%
Average return by calendar month, 2016–2026
MonthYearsPositiveAverage
Jan107 of 10+1.8%
Feb107 of 10+4.4%
Mar105 of 10−0.12%
Apr105 of 10+0.06%
May106 of 10+1.9%
Jun107 of 10−0.47%
Jul119 of 11+3.4%
Aug116 of 11+2.8%
Sep115 of 11−1.8%
Oct115 of 11−0.61%
Nov105 of 10+3.8%
Dec105 of 10−0.36%

End-of-day closes from IEX; the S&P 500 comparison uses SPY over the same window. Prices are a reference point, not a basis for trading decisions.

Where the price stands

Its trend against the 50-day and 200-day averages, and the levels it keeps coming back to.

What it has returned

With dividends, year by year, month by month, and by calendar month on average.