T vs. MKL

Last updated Jun 13, 2026

T (AT&T Inc.) and MKL (Markel Corporation) are both stocks. T operates in Telecom Services (Communication Services), while MKL operates in Insurance - Property & Casualty (Financial Services). Over the past 10 years, T returned 3.33%/yr vs 7.12%/yr for MKL. At a 0.22 correlation, their price movements are largely independent.

Performance

T vs. MKL - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AT&T Inc. (T) and Markel Corporation (MKL). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, T achieves a -2.96% return, which is significantly higher than MKL's -14.13% return. Over the past 10 years, T has underperformed MKL with an annualized return of 3.33%, while MKL has yielded a comparatively higher 7.12% annualized return.

T

• 1D: 2.52%
• 1M: -1.87%
• YTD: -2.96%
• 6M: -1.93%
• 1Y: -12.71%
• 3Y*: 20.58%
• 5Y*: 7.38%
• 10Y*: 3.33%

MKL

• 1D: 0.87%
• 1M: 0.11%
• YTD: -14.13%
• 6M: -14.86%
• 1Y: -4.29%
• 3Y*: 11.11%
• 5Y*: 8.89%
• 10Y*: 7.12%

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

T vs. MKL - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
T AT&T Inc.	-2.96%	13.97%	44.08%	-2.74%	5.76%	-8.09%	-21.37%	45.55%	-22.25%	-4.01%
MKL Markel Corporation	-14.13%	24.53%	21.57%	7.77%	6.77%	19.42%	-9.61%	10.13%	-8.87%	25.94%

Correlation

The correlation between T and MKL is 0.14, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.14
Correlation (3Y) Calculated over the trailing 3-year period	0.17
Correlation (5Y) Calculated over the trailing 5-year period	0.27
Correlation (10Y) Calculated over the trailing 10-year period	0.33
Correlation (All Time) Calculated using the full available price history since Jan 2, 1990	0.22

The correlation between T and MKL shifts across timeframes, from 0.14 (1 year) to 0.33 (10 years), reflecting how their relationship changes across market environments.

Fundamentals

EPS T : $3.04 MKL : $176.96
PE Ratio T : 7.74 MKL : 10.43
PEG Ratio T : 0.32 MKL : 0.19
PS Ratio T : 1.35 MKL : 1.04
Total Revenue (TTM) T : $125.65B MKL : $16.57B
Gross Profit (TTM) T : $105.41B MKL : $7.80B
EBITDA (TTM) T : $54.70B MKL : $2.55B

Return for Risk

T vs. MKL — Risk / Return Rank

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

T

T Risk / Return Rank: 18
T Sharpe Ratio Rank: 17
T Sortino Ratio Rank: 17
T Omega Ratio Rank: 18
T Calmar Ratio Rank: 21
T Martin Ratio Rank: 15

MKL

MKL Risk / Return Rank: 30
MKL Sharpe Ratio Rank: 31
MKL Sortino Ratio Rank: 26
MKL Omega Ratio Rank: 26
MKL Calmar Ratio Rank: 35
MKL Martin Ratio Rank: 32

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.

T vs. MKL - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AT&T Inc. (T) and Markel Corporation (MKL). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	T	MKL	Difference
Sharpe ratio: Return per unit of total volatility	-0.59	-0.27	-0.32
Sortino ratio: Return per unit of downside risk	-0.72	-0.24	-0.48
Omega ratio: Gain probability vs. loss probability	0.92	0.97	-0.05
Calmar ratio: Return relative to maximum drawdown	-0.59	-0.25	-0.34
Martin ratio: Return relative to average drawdown	-1.22	-0.60	-0.62

T vs. MKL - Sharpe Ratio Comparison

The current T Sharpe Ratio is -0.59, which is lower than the MKL Sharpe Ratio of -0.27. The chart below compares the historical Sharpe Ratios of T and MKL, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

T vs. MKL - Drawdown Comparison

The maximum T drawdown since its inception was -64.15%, roughly equal to the maximum MKL drawdown of -61.32%. Use the drawdown chart below to compare losses from any high point for T and MKL.

Drawdown Indicators

	T	MKL	Difference
Max Drawdown Largest peak-to-trough decline	-64.15%	-61.32%	-2.83%
Max Drawdown (1Y) Largest decline over 1 year	-21.87%	-20.10%	-1.77%
Max Drawdown (3Y) Largest decline over 3 years	-21.87%	-20.10%	-1.77%
Max Drawdown (5Y) Largest decline over 5 years	-32.01%	-28.87%	-3.14%
Max Drawdown (10Y) Largest decline over 10 years	-42.35%	-44.66%	+2.31%
Current Drawdown Current decline from peak	-18.12%	-15.78%	-2.34%
Average Drawdown Average peak-to-trough decline	-15.72%	-11.39%	-4.33%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.64%	8.47%	+2.17%

Volatility

T vs. MKL - Volatility Comparison

AT&T Inc. (T) has a higher volatility of 8.21% compared to Markel Corporation (MKL) at 4.33%. This indicates that T's price experiences larger fluctuations and is considered to be riskier than MKL based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	T	MKL	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.21%	4.33%	+3.88%
Volatility (6M) Calculated over the trailing 6-month period	17.80%	13.32%	+4.48%
Volatility (1Y) Calculated over the trailing 1-year period	22.13%	18.87%	+3.26%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.01%	22.43%	+1.58%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.73%	25.27%	-1.54%

Dividends

T vs. MKL - Dividend Comparison

T's dividend yield for the trailing twelve months is around 4.71%, while MKL has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MKL Markel Corporation	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
T AT&T Inc.	4.71%	4.47%	4.87%	6.62%	6.66%	8.46%	7.23%	5.22%	7.01%	5.04%	4.51%	5.46%

Financials

Frequently Asked Questions

Can I hold both T and MKL in my portfolio?

T and MKL have a correlation of 0.14, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, T or MKL?

T has higher volatility (8.21%) compared to MKL (4.33%). In terms of maximum drawdown, T dropped -64.15% vs MKL's -61.32%.

Which has better risk-adjusted returns?

MKL currently has the higher Sharpe Ratio (-0.27 vs -0.59), 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.