AT&T (XSWX:T) 10-Year Sortino Ratio: N/A (As of Aug. 25, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

XSWX:T AT&T Inc XSWX:T
65 GF Score
Price CHF20.56
GF Value CHF19.51
Valuation Fairly Valued
! 3 Warning Signs
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What is AT&T 10-Year Sortino Ratio?

The 10-Year Sortino Ratio measures the additional return that an investor receives per unit of the downside risk over the past ten years. As of today (2026-08-25), AT&T's 10-Year Sortino Ratio is Not available.

AT&T  (XSWX:T) 10-Year Sortino Ratio Explanation

The 10-Year Sortino Ratio inidicates the risk-adjusted return of an investment over the past ten year. It is calculated as the annualized result of the average ten-year monthly excess returns divided by the standard deviation of negative returns in the ten-year period. The monthly excess return is the monthly investment return minus the monthly risk-free rate (typically the 10-year Treasury Constant Maturity Rate). If the risk-free rate for a specific region is not available, U.S. data is used by default.

Differnt from the Sharpe Ratio that penalizes both upside and downside volatility equally, the Sortino Ratio penalizes only those returns falling below a user-specified target or required rate of return. The expected returns here is set to the risk-free rate as well.

AT&T 10-Year Sortino Ratio Related Terms

XSWX:T vs TMUS, VZ, CMCSA: 10-Year Sortino Ratio Comparison

For the Telecom Services subindustry, AT&T's 10-Year Sortino Ratio, along with its competitors' market caps and 10-Year Sortino Ratio data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.

AT&T 10-Year Sortino Ratio vs Telecommunication Services Industry

For the Telecommunication Services industry and Communication Services sector, AT&T's 10-Year Sortino Ratio distribution charts can be found below:

* The bar in red indicates where AT&T's 10-Year Sortino Ratio falls into.


XSWX:T
65GF Score
AT&T Inc XSWX:T
10-Year Sortino Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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AT&T 10-Year Sortino Ratio Calculation

The 10-Year Sortino Ratio measures the risk-adjusted return of an investment asset or portfolio in the last ten year, focusing specifically on downside risk rather than total risk. A stock / portfolio's 10-Year Sortino Ratio can be calculated by dividing the difference between the ten-year average monthly returns of the investment and the risk-free rate, by the standard deviation of the downside risks over the past ten year.

A downside risk is a potential loss from the asset or investment. The Downside risk here is measured by the downside deviation, which is the standard deviation of negative returns.

Is AT&T (XSWX:T) Overvalued in 2026?

Based on GuruFocus' analysis, AT&T stock appears to be overvalued. The current stock price of CHF20.56 is trading 5.4% above its estimated GF Value™ of CHF19.51. GuruFocus considers AT&T to be Fairly Valued.

Key valuation signals for XSWX:T:

  • 10-Year Sortino Ratio: N/A
  • GF Value™: CHF19.51 vs. price of CHF20.56 (5.4% above fair value)
  • GF Score™: 65/100 with 3 warning signs

No single metric tells the full story. See the XSWX:T stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

AT&T Business Description

Address 208 S. Akard Street, Dallas, TX, USA, 75202
The wireless business contributes nearly 70% of AT&T's revenue. The company is the third-largest US wireless carrier, connecting 74 million postpaid and 17 million prepaid phone customers. Fixed-line enterprise services, which account for about 14% of revenue, include internet access, private networking, security, voice, and wholesale network capacity. Residential services, about 11% of revenue, primarily consist of in-home broadband internet access, serving 15 million customers. AT&T also has a sizable presence in Mexico, with 25 million wireless customers, but this business only accounts for 3% of revenue. The company recently sold its 70% equity stake in satellite television provider DirecTV to its partner, private equity firm TPG.
65GF Score

Get the complete analysis for XSWX:T

10-Year Sortino Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

CHF20.56
Price
CHF19.51
GF Value