MLM vs. EME

Last updated Jun 4, 2026

MLM (Martin Marietta Materials, Inc.) and EME (EMCOR Group, Inc.) are both stocks. MLM operates in Building Materials (Basic Materials), while EME operates in Engineering & Construction (Industrials). Over the past 10 years, MLM returned 12.89%/yr vs 33.77%/yr for EME. At a 0.42 correlation, their price movements are largely independent.

Performance

MLM vs. EME - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Martin Marietta Materials, Inc. (MLM) and EMCOR Group, Inc. (EME). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MLM achieves a -6.10% return, which is significantly lower than EME's 37.38% return. Over the past 10 years, MLM has underperformed EME with an annualized return of 12.89%, while EME has yielded a comparatively higher 33.77% annualized return.

MLM

• 1D: 1.08%
• 1M: -3.20%
• YTD: -6.10%
• 6M: -5.06%
• 1Y: 7.47%
• 3Y*: 12.64%
• 5Y*: 11.32%
• 10Y*: 12.89%

EME

• 1D: 1.48%
• 1M: -7.77%
• YTD: 37.38%
• 6M: 37.33%
• 1Y: 73.87%
• 3Y*: 69.67%
• 5Y*: 46.30%
• 10Y*: 33.77%

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

MLM vs. EME - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MLM Martin Marietta Materials, Inc.	-6.10%	21.25%	4.08%	48.62%	-22.73%	56.11%	2.57%	64.18%	-21.55%	0.57%
EME EMCOR Group, Inc.	37.38%	35.05%	111.27%	46.03%	16.81%	39.93%	6.47%	45.18%	-26.68%	16.09%

Correlation

The correlation between MLM and EME is 0.34, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.34
Correlation (3Y) Calculated over the trailing 3-year period	0.43
Correlation (5Y) Calculated over the trailing 5-year period	0.49
Correlation (10Y) Calculated over the trailing 10-year period	0.49
Correlation (All Time) Calculated using the full available price history since Dec 29, 1995	0.42

The correlation between MLM and EME shifts across timeframes, from 0.34 (1 year) to 0.49 (5 years), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap MLM : $35.22B EME : $37.82B
EPS MLM : $18.20 EME : $29.65
PE Ratio MLM : 32.03 EME : 28.32
PEG Ratio MLM : 1.43 EME : 0.66
PS Ratio MLM : 5.38 EME : 2.13
PB Ratio MLM : 3.12 EME : 9.78
Total Revenue (TTM) MLM : $6.55B EME : $17.75B
Gross Profit (TTM) MLM : $1.94B EME : $3.47B
EBITDA (TTM) MLM : $1.96B EME : $2.03B

Return for Risk

MLM vs. EME — Risk / Return Rank

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

MLM

MLM Risk / Return Rank: 47
MLM Sharpe Ratio Rank: 51
MLM Sortino Ratio Rank: 44
MLM Omega Ratio Rank: 43
MLM Calmar Ratio Rank: 47
MLM Martin Ratio Rank: 50

EME

EME Risk / Return Rank: 83
EME Sharpe Ratio Rank: 87
EME Sortino Ratio Rank: 80
EME Omega Ratio Rank: 84
EME Calmar Ratio Rank: 82
EME Martin Ratio Rank: 82

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.

MLM vs. EME - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Martin Marietta Materials, Inc. (MLM) and EMCOR Group, Inc. (EME). 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.

	MLM	EME	Difference
Sharpe ratio: Return per unit of total volatility	0.31	1.96	-1.66
Sortino ratio: Return per unit of downside risk	0.58	2.37	-1.79
Omega ratio: Gain probability vs. loss probability	1.07	1.35	-0.28
Calmar ratio: Return relative to maximum drawdown	0.30	2.95	-2.65
Martin ratio: Return relative to average drawdown	0.84	7.46	-6.62
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MLM vs. EME - Sharpe Ratio Comparison

The current MLM Sharpe Ratio is 0.31, which is lower than the EME Sharpe Ratio of 1.96. The chart below compares the historical Sharpe Ratios of MLM and EME, 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

	MLM	EME	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.31	1.96	-1.66
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.43	1.40	-0.97
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.42	1.03	-0.61
Sharpe Ratio (All Time) Calculated using the full available price history	0.36	0.60	-0.24

Drawdowns

MLM vs. EME - Drawdown Comparison

The maximum MLM drawdown since its inception was -63.73%, smaller than the maximum EME drawdown of -70.56%. Use the drawdown chart below to compare losses from any high point for MLM and EME.

Drawdown Indicators

	MLM	EME	Difference
Max Drawdown Largest peak-to-trough decline	-63.73%	-70.56%	+6.83%
Max Drawdown (1Y) Largest decline over 1 year	-24.69%	-25.15%	+0.46%
Max Drawdown (3Y) Largest decline over 3 years	-26.78%	-36.19%	+9.41%
Max Drawdown (5Y) Largest decline over 5 years	-32.75%	-36.19%	+3.44%
Max Drawdown (10Y) Largest decline over 10 years	-48.34%	-48.00%	-0.34%
Current Drawdown Current decline from peak	-17.43%	-11.04%	-6.39%
Average Drawdown Average peak-to-trough decline	-21.46%	-15.37%	-6.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.95%	9.94%	-0.99%

Volatility

MLM vs. EME - Volatility Comparison

Martin Marietta Materials, Inc. (MLM) has a higher volatility of 8.90% compared to EMCOR Group, Inc. (EME) at 7.27%. This indicates that MLM's price experiences larger fluctuations and is considered to be riskier than EME based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MLM	EME	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.90%	7.27%	+1.63%
Volatility (6M) Calculated over the trailing 6-month period	20.33%	25.45%	-5.12%
Volatility (1Y) Calculated over the trailing 1-year period	24.57%	37.97%	-13.40%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	26.55%	33.27%	-6.72%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	30.74%	32.94%	-2.20%

Dividends

MLM vs. EME - Dividend Comparison

MLM's dividend yield for the trailing twelve months is around 0.57%, more than EME's 0.15% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EME EMCOR Group, Inc.	0.15%	0.16%	0.20%	0.32%	0.36%	0.41%	0.35%	0.37%	0.54%	0.39%	0.45%	0.67%
MLM Martin Marietta Materials, Inc.	0.57%	0.52%	0.59%	0.56%	0.75%	0.54%	0.79%	0.74%	1.07%	0.78%	0.74%	1.17%

Financials

MLM vs. EME - Profitability Comparison

The chart below illustrates the profitability comparison between Martin Marietta Materials, Inc. and EMCOR Group, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

MLM - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Martin Marietta Materials, Inc. reported a gross profit of 310.00M and revenue of 1.36B. Therefore, the gross margin over that period was 22.8%.

EME - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, EMCOR Group, Inc. reported a gross profit of 863.95M and revenue of 4.63B. Therefore, the gross margin over that period was 18.7%.

MLM - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Martin Marietta Materials, Inc. reported an operating income of 162.00M and revenue of 1.36B, resulting in an operating margin of 11.9%.

EME - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, EMCOR Group, Inc. reported an operating income of 403.85M and revenue of 4.63B, resulting in an operating margin of 8.7%.

MLM - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Martin Marietta Materials, Inc. reported a net income of 79.00M and revenue of 1.36B, resulting in a net margin of 5.8%.

EME - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, EMCOR Group, Inc. reported a net income of 305.48M and revenue of 4.63B, resulting in a net margin of 6.6%.

Frequently Asked Questions

Can I hold both MLM and EME in my portfolio?

MLM and EME have a correlation of 0.34, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MLM or EME?

MLM has higher volatility (8.90%) compared to EME (7.27%). In terms of maximum drawdown, MLM dropped -63.73% vs EME's -70.56%.

Which has better risk-adjusted returns?

EME currently has the higher Sharpe Ratio (1.96 vs 0.31), 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.