ATMU vs. CECO

Last updated Aug 1, 2026

ATMU (Atmus Filtration Technologies Inc.) and CECO (CECO Environmental Corp.) are both stocks. Both operate in the Pollution & Treatment Controls industry within the Industrials sector. Over the past 3 years, ATMU returned 29.00%/yr vs 76.27%/yr for CECO. Their 0.32 correlation means their historical movements had little consistent relationship.

Performance

ATMU vs. CECO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Atmus Filtration Technologies Inc. (ATMU) and CECO Environmental Corp. (CECO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ATMU achieves a -0.34% return, which is significantly lower than CECO's 10.09% return.

ATMU

• 1D: 0.00%
• 1M: 3.86%
• 6M: -10.76%
• YTD: -0.34%
• 1Y: 38.32%
• 3Y*: 29.00%
• 5Y*: —
• 10Y*: —
• ALL TIME*: 31.79%

CECO

• 1D: 0.53%
• 1M: -19.79%
• 6M: -2.28%
• YTD: 10.09%
• 1Y: 46.00%
• 3Y*: 76.27%
• 5Y*: 56.40%
• 10Y*: 22.48%
• ALL TIME*: 10.14%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
ATMU Atmus Filtration Technologies Inc.	$27.62M	$29.00M	$44.00M
CECO CECO Environmental Corp.	$75.05M	$66.56M	$78.21M

ATMU vs. CECO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
ATMU Atmus Filtration Technologies Inc.	-0.34%	33.16%	67.28%	8.40%
CECO CECO Environmental Corp.	10.09%	97.98%	49.06%	78.68%

Correlation

The correlation between ATMU and CECO is 0.32, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.32
Correlation (3Y) Balances recent behavior with more history.	0.33
Correlation (All Time) Calculated using the full available price history since May 26, 2023	0.32

Fundamentals

Market Cap ATMU : $4.22B CECO : $2.36B
EPS ATMU : $2.56 CECO : $0.47
PE Ratio ATMU : 20.14 CECO : 141.00
PEG Ratio ATMU : 3.62 CECO : 0.40
PS Ratio ATMU : 3.16 CECO : 2.97
PB Ratio ATMU : 10.49 CECO : 7.76
Total Revenue (TTM) ATMU : $1.35B CECO : $812.38M
Gross Profit (TTM) ATMU : $529.00M CECO : $278.45M
EBITDA (TTM) ATMU : $334.60M CECO : $77.75M

Return for Risk

ATMU vs. CECO — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

ATMU

ATMU Risk / Return Rank: 69
ATMU Sharpe Ratio Rank: 72
ATMU Sortino Ratio Rank: 66
ATMU Omega Ratio Rank: 68
ATMU Calmar Ratio Rank: 68
ATMU Martin Ratio Rank: 69

CECO

CECO Risk / Return Rank: 69
CECO Sharpe Ratio Rank: 69
CECO Sortino Ratio Rank: 67
CECO Omega Ratio Rank: 68
CECO Calmar Ratio Rank: 69
CECO Martin Ratio Rank: 74

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

ATMU vs. CECO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Atmus Filtration Technologies Inc. (ATMU) and CECO Environmental Corp. (CECO). 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.

	ATMU	CECO	Difference
Sharpe ratio: Return per unit of total volatility	0.87	0.74	+0.12
Sortino ratio: Return per unit of downside risk	1.29	1.37	-0.08
Omega ratio: Gain probability vs. loss probability	1.18	1.18	0.00
Calmar ratio: Return relative to maximum drawdown	1.11	1.17	-0.06
Martin ratio: Return relative to average drawdown	2.75	3.56	-0.81

ATMU vs. CECO - Sharpe Ratio Comparison

The current ATMU Sharpe Ratio is 0.87, which is comparable to the CECO Sharpe Ratio of 0.74. The chart below compares the historical Sharpe Ratios of ATMU and CECO, 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

ATMU vs. CECO - Drawdown Comparison

The maximum ATMU drawdown since its inception was -30.22%, smaller than the maximum CECO drawdown of -90.64%. Use the drawdown chart below to compare losses from any high point for ATMU and CECO.

Drawdown Indicators

	ATMU	CECO	Difference
Max Drawdown Largest peak-to-trough decline	-30.22%	-90.64%	+60.42%
Max Drawdown (1Y) Largest decline over 1 year	-30.22%	-39.98%	+9.76%
Max Drawdown (3Y) Largest decline over 3 years	-30.22%	-47.93%	+17.71%
Max Drawdown (5Y) Largest decline over 5 years	—	-47.93%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-74.13%	—
Current Drawdown Current decline from peak	-21.17%	-33.89%	+12.72%
Average Drawdown Average peak-to-trough decline	-9.19%	-46.13%	+36.94%
Ulcer Index Depth and duration of drawdowns from previous peaks	12.15%	13.13%	-0.98%

Volatility

ATMU vs. CECO - Volatility Comparison

The current volatility for Atmus Filtration Technologies Inc. (ATMU) is 11.58%, while CECO Environmental Corp. (CECO) has a volatility of 20.71%. This indicates that ATMU experiences smaller price fluctuations and is considered to be less risky than CECO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ATMU	CECO	Difference
Volatility (1M) Calculated over the trailing 1-month period	11.58%	20.71%	-9.13%
Volatility (6M) Calculated over the trailing 6-month period	33.44%	54.97%	-21.53%
Volatility (1Y) Calculated over the trailing 1-year period	38.56%	63.15%	-24.59%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	34.85%	52.89%	-18.04%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	34.85%	52.43%	-17.58%

Dividends

ATMU vs. CECO - Dividend Comparison

ATMU's dividend yield for the trailing twelve months is around 0.43%, while CECO has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ATMU Atmus Filtration Technologies Inc.	0.43%	0.40%	0.26%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
CECO CECO Environmental Corp.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	4.39%	1.89%	3.44%

Financials

Frequently Asked Questions

Can I hold both ATMU and CECO in my portfolio?

ATMU and CECO have a correlation of 0.32, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ATMU or CECO?

CECO has higher volatility (20.71%) compared to ATMU (11.58%). In terms of maximum drawdown, ATMU dropped -30.22% vs CECO's -90.64%.

Which has better risk-adjusted returns?

ATMU currently has the higher Sharpe Ratio (0.87 vs 0.74), 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.