T vs. BRK-B

Last updated Jun 13, 2026

T (AT&T Inc.) and BRK-B (Berkshire Hathaway Inc.) are both stocks. T operates in Telecom Services (Communication Services), while BRK-B operates in Insurance - Diversified (Financial Services). Over the past 10 years, T returned 3.33%/yr vs 13.22%/yr for BRK-B. At a 0.31 correlation, their price movements are largely independent.

Performance

T vs. BRK-B - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AT&T Inc. (T) and Berkshire Hathaway Inc. (BRK-B). 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 lower than BRK-B's -2.67% return. Over the past 10 years, T has underperformed BRK-B with an annualized return of 3.33%, while BRK-B has yielded a comparatively higher 13.22% annualized return.

T

• 1D: 2.52%
• 1M: -4.69%
• YTD: -2.96%
• 6M: -1.93%
• 1Y: -12.96%
• 3Y*: 20.58%
• 5Y*: 7.38%
• 10Y*: 3.33%

BRK-B

• 1D: 0.71%
• 1M: 0.77%
• YTD: -2.67%
• 6M: -2.06%
• 1Y: -0.22%
• 3Y*: 13.30%
• 5Y*: 11.27%
• 10Y*: 13.22%

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

T vs. BRK-B - 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%
BRK-B Berkshire Hathaway Inc.	-2.67%	10.89%	27.09%	15.46%	3.31%	28.95%	2.37%	10.93%	3.01%	21.62%

Correlation

The correlation between T and BRK-B is 0.24, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.24
Correlation (3Y) Calculated over the trailing 3-year period	0.27
Correlation (5Y) Calculated over the trailing 5-year period	0.38
Correlation (10Y) Calculated over the trailing 10-year period	0.42
Correlation (All Time) Calculated using the full available price history since May 9, 1996	0.31

The correlation between T and BRK-B shifts across timeframes, from 0.24 (1 year) to 0.42 (10 years), reflecting how their relationship changes across market environments.

Fundamentals

EPS T : $3.04 BRK-B : $33.62
PE Ratio T : 7.74 BRK-B : 14.55
PEG Ratio T : 0.32 BRK-B : 0.56
PS Ratio T : 1.35 BRK-B : 2.81
Total Revenue (TTM) T : $125.65B BRK-B : $375.39B
Gross Profit (TTM) T : $105.41B BRK-B : $94.36B
EBITDA (TTM) T : $54.70B BRK-B : $71.92B

Return for Risk

T vs. BRK-B — 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

BRK-B

BRK-B Risk / Return Rank: 39
BRK-B Sharpe Ratio Rank: 42
BRK-B Sortino Ratio Rank: 34
BRK-B Omega Ratio Rank: 33
BRK-B Calmar Ratio Rank: 42
BRK-B Martin Ratio Rank: 42

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. BRK-B - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AT&T Inc. (T) and Berkshire Hathaway Inc. (BRK-B). 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	BRK-B	Difference
Sharpe ratio: Return per unit of total volatility	-0.59	-0.02	-0.57
Sortino ratio: Return per unit of downside risk	-0.72	0.08	-0.80
Omega ratio: Gain probability vs. loss probability	0.92	1.01	-0.09
Calmar ratio: Return relative to maximum drawdown	-0.59	-0.02	-0.57
Martin ratio: Return relative to average drawdown	-1.22	-0.05	-1.17

T vs. BRK-B - Sharpe Ratio Comparison

The current T Sharpe Ratio is -0.59, which is lower than the BRK-B Sharpe Ratio of -0.02. The chart below compares the historical Sharpe Ratios of T and BRK-B, 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. BRK-B - Drawdown Comparison

The maximum T drawdown since its inception was -64.15%, which is greater than BRK-B's maximum drawdown of -53.86%. Use the drawdown chart below to compare losses from any high point for T and BRK-B.

Drawdown Indicators

	T	BRK-B	Difference
Max Drawdown Largest peak-to-trough decline	-64.15%	-53.86%	-10.29%
Max Drawdown (1Y) Largest decline over 1 year	-21.87%	-9.42%	-12.45%
Max Drawdown (3Y) Largest decline over 3 years	-21.87%	-14.95%	-6.92%
Max Drawdown (5Y) Largest decline over 5 years	-32.01%	-26.58%	-5.43%
Max Drawdown (10Y) Largest decline over 10 years	-42.35%	-29.57%	-12.78%
Current Drawdown Current decline from peak	-18.12%	-9.36%	-8.76%
Average Drawdown Average peak-to-trough decline	-15.72%	-11.07%	-4.65%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.64%	4.53%	+6.11%

Volatility

T vs. BRK-B - Volatility Comparison

AT&T Inc. (T) has a higher volatility of 8.21% compared to Berkshire Hathaway Inc. (BRK-B) at 3.95%. This indicates that T's price experiences larger fluctuations and is considered to be riskier than BRK-B based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	T	BRK-B	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.21%	3.95%	+4.26%
Volatility (6M) Calculated over the trailing 6-month period	17.80%	10.78%	+7.02%
Volatility (1Y) Calculated over the trailing 1-year period	22.13%	14.38%	+7.75%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.01%	17.12%	+6.89%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.73%	19.44%	+4.29%

Dividends

T vs. BRK-B - Dividend Comparison

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

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BRK-B Berkshire Hathaway Inc.	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 BRK-B in my portfolio?

T and BRK-B have a correlation of 0.24, 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 BRK-B?

T has higher volatility (8.21%) compared to BRK-B (3.95%). In terms of maximum drawdown, T dropped -64.15% vs BRK-B's -53.86%.

Which has better risk-adjusted returns?

BRK-B currently has the higher Sharpe Ratio (-0.02 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.