SHY vs. TMUS

Last updated Jun 9, 2026

SHY (iShares 1-3 Year Treasury Bond ETF) is Government Bonds fund tracking the ICE US Treasury 1-3 Year Index, while TMUS (T-Mobile US, Inc.) is a stock. Over the past 10 years, SHY returned 1.63%/yr vs 16.10%/yr for TMUS. At a correlation of -0.09, they often move in opposite directions.

Performance

SHY vs. TMUS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares 1-3 Year Treasury Bond ETF (SHY) and T-Mobile US, Inc. (TMUS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SHY achieves a 0.34% return, which is significantly higher than TMUS's -11.22% return. Over the past 10 years, SHY has underperformed TMUS with an annualized return of 1.63%, while TMUS has yielded a comparatively higher 16.10% annualized return.

SHY

• 1D: 0.05%
• 1M: -0.19%
• YTD: 0.34%
• 6M: 0.74%
• 1Y: 3.33%
• 3Y*: 4.04%
• 5Y*: 1.70%
• 10Y*: 1.63%

TMUS

• 1D: 0.19%
• 1M: -7.35%
• YTD: -11.22%
• 6M: -11.83%
• 1Y: -26.06%
• 3Y*: 12.41%
• 5Y*: 4.85%
• 10Y*: 16.10%

*Multi-year figures are annualized to reflect compound growth (CAGR)

SHY vs. TMUS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SHY iShares 1-3 Year Treasury Bond ETF	0.34%	4.95%	3.92%	4.16%	-3.88%	-0.71%	3.03%	3.38%	1.46%	0.26%
TMUS T-Mobile US, Inc.	-11.22%	-6.58%	39.70%	15.02%	20.71%	-13.99%	71.96%	23.28%	0.16%	10.43%

Correlation

The correlation between SHY and TMUS is -0.03, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.03
Correlation (3Y) Calculated over the trailing 3-year period	0.06
Correlation (5Y) Calculated over the trailing 5-year period	0.09
Correlation (10Y) Calculated over the trailing 10-year period	0.01
Correlation (All Time) Calculated using the full available price history since Apr 20, 2007	-0.09

The correlation between SHY and TMUS shifts across timeframes, from -0.09 (all time) to 0.09 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

SHY vs. TMUS — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

SHY

SHY Risk / Return Rank: 86
SHY Sharpe Ratio Rank: 85
SHY Sortino Ratio Rank: 92
SHY Omega Ratio Rank: 89
SHY Calmar Ratio Rank: 80
SHY Martin Ratio Rank: 82

TMUS

TMUS Risk / Return Rank: 6
TMUS Sharpe Ratio Rank: 4
TMUS Sortino Ratio Rank: 6
TMUS Omega Ratio Rank: 8
TMUS Calmar Ratio Rank: 8
TMUS Martin Ratio Rank: 6

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

SHY vs. TMUS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares 1-3 Year Treasury Bond ETF (SHY) and T-Mobile US, Inc. (TMUS). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	SHY	TMUS	Difference
Sharpe ratio: Return per unit of total volatility	2.51	-1.05	+3.56
Sortino ratio: Return per unit of downside risk	4.11	-1.49	+5.60
Omega ratio: Gain probability vs. loss probability	1.51	0.83	+0.68
Calmar ratio: Return relative to maximum drawdown	3.76	-0.86	+4.62
Martin ratio: Return relative to average drawdown	15.12	-1.49	+16.61
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SHY vs. TMUS - Sharpe Ratio Comparison

The current SHY Sharpe Ratio is 2.51, which is higher than the TMUS Sharpe Ratio of -1.05. The chart below compares the historical Sharpe Ratios of SHY and TMUS, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	SHY	TMUS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.51	-1.05	+3.56
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.86	0.20	+0.66
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	1.04	0.62	+0.42
Sharpe Ratio (All Time) Calculated using the full available price history	1.28	0.20	+1.08

Drawdowns

SHY vs. TMUS - Drawdown Comparison

The maximum SHY drawdown since its inception was -5.71%, smaller than the maximum TMUS drawdown of -86.29%. Use the drawdown chart below to compare losses from any high point for SHY and TMUS.

Drawdown Indicators

	SHY	TMUS	Difference
Max Drawdown Largest peak-to-trough decline	-5.71%	-86.29%	+80.58%
Max Drawdown (1Y) Largest decline over 1 year	-0.89%	-30.37%	+29.48%
Max Drawdown (3Y) Largest decline over 3 years	-0.97%	-33.65%	+32.68%
Max Drawdown (5Y) Largest decline over 5 years	-5.71%	-33.65%	+27.94%
Max Drawdown (10Y) Largest decline over 10 years	-5.71%	-33.65%	+27.94%
Current Drawdown Current decline from peak	-0.39%	-33.12%	+32.73%
Average Drawdown Average peak-to-trough decline	-0.52%	-25.96%	+25.44%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.22%	17.64%	-17.42%

Volatility

SHY vs. TMUS - Volatility Comparison

The current volatility for iShares 1-3 Year Treasury Bond ETF (SHY) is 0.38%, while T-Mobile US, Inc. (TMUS) has a volatility of 6.91%. This indicates that SHY experiences smaller price fluctuations and is considered to be less risky than TMUS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SHY	TMUS	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.38%	6.91%	-6.53%
Volatility (6M) Calculated over the trailing 6-month period	0.95%	19.14%	-18.19%
Volatility (1Y) Calculated over the trailing 1-year period	1.33%	25.04%	-23.71%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.99%	23.86%	-21.87%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.57%	26.08%	-24.51%

Dividends

SHY vs. TMUS - Dividend Comparison

SHY's dividend yield for the trailing twelve months is around 3.69%, more than TMUS's 2.21% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SHY iShares 1-3 Year Treasury Bond ETF	3.69%	3.81%	3.92%	2.99%	1.30%	0.26%	0.94%	2.12%	1.72%	0.98%	0.71%	0.54%
TMUS T-Mobile US, Inc.	2.21%	1.80%	1.28%	0.41%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both SHY and TMUS in my portfolio?

SHY and TMUS have a correlation of -0.03, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SHY or TMUS?

TMUS has higher volatility (6.91%) compared to SHY (0.38%). In terms of maximum drawdown, SHY dropped -5.71% vs TMUS's -86.29%.

Which has better risk-adjusted returns?

SHY currently has the higher Sharpe Ratio (2.51 vs -1.05), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.