EME vs. ACLS

Last updated Apr 1, 2026

Compare and contrast key facts about EMCOR Group, Inc. (EME) and Axcelis Technologies, Inc. (ACLS).

Performance

EME vs. ACLS - Performance Comparison

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

EME vs. ACLS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
EME EMCOR Group, Inc.	20.75%	35.05%	111.27%	46.03%	16.81%	39.93%	6.47%	45.18%	-26.68%	16.09%
ACLS Axcelis Technologies, Inc.	15.86%	14.98%	-46.13%	63.42%	6.44%	156.04%	20.83%	35.39%	-37.98%	97.25%

Fundamentals

Market Cap EME : $33.26B ACLS : $2.90B
EPS EME : $28.22 ACLS : $3.81
PE Ratio EME : 26.17 ACLS : 24.43
PEG Ratio EME : 0.61 ACLS : 1.44
PS Ratio EME : 1.96 ACLS : 3.50
PB Ratio EME : 9.05 ACLS : 2.80
Total Revenue (TTM) EME : $16.99B ACLS : $839.05M
Gross Profit (TTM) EME : $3.33B ACLS : $376.85M
EBITDA (TTM) EME : $1.84B ACLS : $150.28M

Returns By Period

In the year-to-date period, EME achieves a 20.75% return, which is significantly higher than ACLS's 15.86% return. Over the past 10 years, EME has outperformed ACLS with an annualized return of 31.80%, while ACLS has yielded a comparatively lower 23.58% annualized return.

EME

• 1D: 5.31%
• 1M: 1.89%
• YTD: 20.75%
• 6M: 13.78%
• 1Y: 100.16%
• 3Y*: 66.05%
• 5Y*: 45.89%
• 10Y*: 31.80%

ACLS

• 1D: 2.93%
• 1M: 12.67%
• YTD: 15.86%
• 6M: -4.67%
• 1Y: 87.40%
• 3Y*: -11.27%
• 5Y*: 14.35%
• 10Y*: 23.58%

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

Return for Risk

EME vs. ACLS — Risk / Return Rank

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

EME

EME Risk / Return Rank: 91
EME Sharpe Ratio Rank: 95
EME Sortino Ratio Rank: 90
EME Omega Ratio Rank: 92
EME Calmar Ratio Rank: 91
EME Martin Ratio Rank: 90

ACLS

ACLS Risk / Return Rank: 84
ACLS Sharpe Ratio Rank: 86
ACLS Sortino Ratio Rank: 81
ACLS Omega Ratio Rank: 79
ACLS Calmar Ratio Rank: 88
ACLS Martin Ratio Rank: 85

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.

EME vs. ACLS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for EMCOR Group, Inc. (EME) and Axcelis Technologies, Inc. (ACLS). 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.

	EME	ACLS	Difference
Sharpe ratio Return per unit of total volatility	2.50	1.58	+0.93
Sortino ratio Return per unit of downside risk	2.80	2.15	+0.65
Omega ratio Gain probability vs. loss probability	1.42	1.28	+0.15
Calmar ratio Return relative to maximum drawdown	3.96	3.33	+0.63
Martin ratio Return relative to average drawdown	10.24	7.67	+2.57
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

EME vs. ACLS - Sharpe Ratio Comparison

The current EME Sharpe Ratio is 2.50, which is higher than the ACLS Sharpe Ratio of 1.58. The chart below compares the historical Sharpe Ratios of EME and ACLS, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	EME	ACLS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.50	1.58	+0.93
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.40	0.27	+1.13
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.97	0.45	+0.52
Sharpe Ratio (All Time) Calculated using the full available price history	0.59	-0.00	+0.59

Correlation

The correlation between EME and ACLS is 0.36, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

EME vs. ACLS - Dividend Comparison

EME's dividend yield for the trailing twelve months is around 0.16%, while ACLS has not paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EME EMCOR Group, Inc.	0.16%	0.16%	0.20%	0.32%	0.36%	0.41%	0.35%	0.37%	0.54%	0.39%	0.45%	0.67%
ACLS Axcelis Technologies, 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%

Drawdowns

EME vs. ACLS - Drawdown Comparison

The maximum EME drawdown since its inception was -70.56%, smaller than the maximum ACLS drawdown of -99.34%. Use the drawdown chart below to compare losses from any high point for EME and ACLS.

Drawdown Indicators

	EME	ACLS	Difference
Max Drawdown Largest peak-to-trough decline	-70.56%	-99.34%	+28.78%
Max Drawdown (1Y) Largest decline over 1 year	-25.15%	-26.20%	+1.05%
Max Drawdown (5Y) Largest decline over 5 years	-36.19%	-78.84%	+42.65%
Max Drawdown (10Y) Largest decline over 10 years	-48.00%	-78.84%	+30.84%
Current Drawdown Current decline from peak	-9.16%	-53.57%	+44.41%
Average Drawdown Average peak-to-trough decline	-15.43%	-72.65%	+57.22%
Ulcer Index Depth and duration of drawdowns from previous peaks	9.72%	11.37%	-1.65%

Volatility

EME vs. ACLS - Volatility Comparison

The current volatility for EMCOR Group, Inc. (EME) is 11.59%, while Axcelis Technologies, Inc. (ACLS) has a volatility of 16.49%. This indicates that EME experiences smaller price fluctuations and is considered to be less risky than ACLS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EME	ACLS	Difference
Volatility (1M) Calculated over the trailing 1-month period	11.59%	16.49%	-4.90%
Volatility (6M) Calculated over the trailing 6-month period	32.46%	39.36%	-6.90%
Volatility (1Y) Calculated over the trailing 1-year period	40.22%	55.64%	-15.42%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	32.90%	53.88%	-20.98%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	32.75%	52.63%	-19.88%

Financials

EME vs. ACLS - Profitability Comparison

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

EME - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, EMCOR Group, Inc. reported a gross profit of 935.60M and revenue of 4.52B. Therefore, the gross margin over that period was 20.7%.

ACLS - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Axcelis Technologies, Inc. reported a gross profit of 111.93M and revenue of 238.33M. Therefore, the gross margin over that period was 47.0%.

EME - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, EMCOR Group, Inc. reported an operating income of 531.64M and revenue of 4.52B, resulting in an operating margin of 11.8%.

ACLS - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Axcelis Technologies, Inc. reported an operating income of 36.17M and revenue of 238.33M, resulting in an operating margin of 15.2%.

EME - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, EMCOR Group, Inc. reported a net income of 431.79M and revenue of 4.52B, resulting in a net margin of 9.6%.

ACLS - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Axcelis Technologies, Inc. reported a net income of 34.30M and revenue of 238.33M, resulting in a net margin of 14.4%.