MMM vs. T

Last updated Jul 21, 2026

MMM (3M Company) and T (AT&T Inc.) are both stocks. MMM operates in Conglomerates (Industrials), while T operates in Telecom Services (Communication Services). Over the past 10 years, MMM returned 3.86%/yr vs 2.10%/yr for T. At a 0.33 correlation, their price movements are largely independent.

Performance

MMM vs. T - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in 3M Company (MMM) and AT&T Inc. (T). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MMM achieves a 0.34% return, which is significantly higher than T's -7.04% return. Over the past 10 years, MMM has outperformed T with an annualized return of 3.86%, while T has yielded a comparatively lower 2.10% annualized return.

MMM

• 1D: -0.46%
• 1M: -0.93%
• 6M: -4.26%
• YTD: 0.34%
• 1Y: 5.78%
• 3Y*: 26.03%
• 5Y*: 2.53%
• 10Y*: 3.86%
• ALL TIME*: 8.23%

T

• 1D: 0.64%
• 1M: 2.62%
• 6M: -2.84%
• YTD: -7.04%
• 1Y: -13.37%
• 3Y*: 20.93%
• 5Y*: 7.13%
• 10Y*: 2.10%
• ALL TIME*: 9.35%

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

MMM vs. T - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MMM 3M Company	0.34%	26.36%	46.13%	-3.33%	-29.63%	4.85%	2.77%	-4.29%	-16.90%	34.90%
T AT&T Inc.	-7.04%	13.97%	44.08%	-2.74%	5.76%	-8.09%	-21.37%	45.55%	-22.25%	-4.01%

Correlation

The correlation between MMM and T 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	0.16
Correlation (5Y) Calculated over the trailing 5-year period	0.28
Correlation (10Y) Calculated over the trailing 10-year period	0.32
Correlation (All Time) Calculated using the full available price history since Jul 19, 1984	0.33

Over the past year, the correlation between MMM and T has dropped to 0.03 - well below their long-term average of 0.33, suggesting their price drivers have been diverging.

Fundamentals

Market Cap MMM : $83.11B T : $152.52B
EPS MMM : $5.18 T : $3.05
PE Ratio MMM : 30.71 T : 7.19
PS Ratio MMM : 3.42 T : 1.25
Total Revenue (TTM) MMM : $25.02B T : $125.65B
Gross Profit (TTM) MMM : $9.89B T : $105.41B
EBITDA (TTM) MMM : $5.28B T : $54.70B

Return for Risk

MMM vs. T — Risk / Return Rank

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

MMM

MMM Risk / Return Rank: 51
MMM Sharpe Ratio Rank: 54
MMM Sortino Ratio Rank: 47
MMM Omega Ratio Rank: 46
MMM Calmar Ratio Rank: 54
MMM Martin Ratio Rank: 54

T

T Risk / Return Rank: 22
T Sharpe Ratio Rank: 19
T Sortino Ratio Rank: 19
T Omega Ratio Rank: 20
T Calmar Ratio Rank: 29
T Martin Ratio Rank: 23

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.

MMM vs. T - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for 3M Company (MMM) and AT&T Inc. (T). 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.

	MMM	T	Difference
Sharpe ratio: Return per unit of total volatility	0.23	-0.57	+0.79
Sortino ratio: Return per unit of downside risk	0.51	-0.67	+1.18
Omega ratio: Gain probability vs. loss probability	1.06	0.92	+0.14
Calmar ratio: Return relative to maximum drawdown	0.31	-0.46	+0.77
Martin ratio: Return relative to average drawdown	0.67	-1.03	+1.70

MMM vs. T - Sharpe Ratio Comparison

The current MMM Sharpe Ratio is 0.23, which is higher than the T Sharpe Ratio of -0.57. The chart below compares the historical Sharpe Ratios of MMM and T, 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

MMM vs. T - Drawdown Comparison

The maximum MMM drawdown since its inception was -59.10%, smaller than the maximum T drawdown of -64.15%. Use the drawdown chart below to compare losses from any high point for MMM and T.

Drawdown Indicators

	MMM	T	Difference
Max Drawdown Largest peak-to-trough decline	-59.10%	-64.15%	+5.05%
Max Drawdown (1Y) Largest decline over 1 year	-18.77%	-28.89%	+10.12%
Max Drawdown (3Y) Largest decline over 3 years	-22.87%	-28.89%	+6.02%
Max Drawdown (5Y) Largest decline over 5 years	-53.23%	-32.01%	-21.22%
Max Drawdown (10Y) Largest decline over 10 years	-59.10%	-42.35%	-16.75%
Current Drawdown Current decline from peak	-7.99%	-21.57%	+13.58%
Average Drawdown Average peak-to-trough decline	-16.09%	-15.74%	-0.35%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.69%	12.94%	-4.25%

Volatility

MMM vs. T - Volatility Comparison

The current volatility for 3M Company (MMM) is 6.22%, while AT&T Inc. (T) has a volatility of 9.59%. This indicates that MMM experiences smaller price fluctuations and is considered to be less risky than T based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MMM	T	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.22%	9.59%	-3.37%
Volatility (6M) Calculated over the trailing 6-month period	19.66%	19.91%	-0.25%
Volatility (1Y) Calculated over the trailing 1-year period	25.82%	23.72%	+2.10%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.36%	24.38%	+3.98%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.58%	23.92%	+2.66%

Dividends

MMM vs. T - Dividend Comparison

MMM's dividend yield for the trailing twelve months is around 1.90%, less than T's 6.58% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MMM 3M Company	1.90%	1.82%	16.27%	5.49%	4.97%	3.33%	3.36%	3.26%	2.86%	2.00%	2.49%	2.72%
T AT&T Inc.	6.58%	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 MMM and T in my portfolio?

MMM and T 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, MMM or T?

T has higher volatility (9.59%) compared to MMM (6.22%). In terms of maximum drawdown, MMM dropped -59.10% vs T's -64.15%.

Which has better risk-adjusted returns?

MMM currently has the higher Sharpe Ratio (0.23 vs -0.57), 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.