ATMU vs. FORM

Last updated Jun 5, 2026

ATMU (Atmus Filtration Technologies Inc.) and FORM (FormFactor, Inc.) are both stocks. ATMU operates in Pollution & Treatment Controls (Industrials), while FORM operates in Semiconductors (Technology). Over the past 3 years, ATMU returned 31.02%/yr vs 61.33%/yr for FORM. At a 0.34 correlation, their price movements are largely independent.

Performance

ATMU vs. FORM - Performance Comparison

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

Returns By Period

In the year-to-date period, ATMU achieves a -8.87% return, which is significantly lower than FORM's 126.97% return.

ATMU

• 1D: -0.34%
• 1M: -11.57%
• YTD: -8.87%
• 6M: -10.56%
• 1Y: 30.91%
• 3Y*: 31.02%
• 5Y*: —
• 10Y*: —

FORM

• 1D: 0.46%
• 1M: -12.69%
• YTD: 126.97%
• 6M: 120.76%
• 1Y: 292.94%
• 3Y*: 61.33%
• 5Y*: 29.39%
• 10Y*: 32.82%

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

ATMU vs. FORM - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
ATMU Atmus Filtration Technologies Inc.	-8.87%	33.16%	67.28%	8.50%
FORM FormFactor, Inc.	126.97%	26.77%	5.49%	31.16%

Correlation

The correlation between ATMU and FORM is 0.48, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.48
Correlation (3Y) Calculated over the trailing 3-year period	0.35
Correlation (All Time) Calculated using the full available price history since May 30, 2023	0.34

The correlation between ATMU and FORM shifts across timeframes, from 0.34 (all time) to 0.48 (1 year), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap ATMU : $3.87B FORM : $10.05B
EPS ATMU : $2.56 FORM : $0.87
PE Ratio ATMU : 18.46 FORM : 145.30
PS Ratio ATMU : 2.89 FORM : 11.82
PB Ratio ATMU : 9.59 FORM : 9.50
Total Revenue (TTM) ATMU : $1.35B FORM : $839.78M
Gross Profit (TTM) ATMU : $529.00M FORM : $332.34M
EBITDA (TTM) ATMU : $334.60M FORM : $97.87M

Return for Risk

ATMU vs. FORM — Risk / Return Rank

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

ATMU

ATMU Risk / Return Rank: 65
ATMU Sharpe Ratio Rank: 69
ATMU Sortino Ratio Rank: 61
ATMU Omega Ratio Rank: 64
ATMU Calmar Ratio Rank: 62
ATMU Martin Ratio Rank: 70

FORM

FORM Risk / Return Rank: 96
FORM Sharpe Ratio Rank: 98
FORM Sortino Ratio Rank: 94
FORM Omega Ratio Rank: 94
FORM Calmar Ratio Rank: 98
FORM Martin Ratio Rank: 97

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.

ATMU vs. FORM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Atmus Filtration Technologies Inc. (ATMU) and FormFactor, Inc. (FORM). 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.

	ATMU	FORM	Difference
Sharpe ratio: Return per unit of total volatility	0.87	4.34	-3.47
Sortino ratio: Return per unit of downside risk	1.28	3.93	-2.65
Omega ratio: Gain probability vs. loss probability	1.19	1.54	-0.35
Calmar ratio: Return relative to maximum drawdown	1.03	11.44	-10.41
Martin ratio: Return relative to average drawdown	3.68	26.96	-23.27
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ATMU vs. FORM - Sharpe Ratio Comparison

The current ATMU Sharpe Ratio is 0.87, which is lower than the FORM Sharpe Ratio of 4.34. The chart below compares the historical Sharpe Ratios of ATMU and FORM, 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

	ATMU	FORM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.87	4.34	-3.47
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.53	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.62	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.87	0.18	+0.70

Drawdowns

ATMU vs. FORM - Drawdown Comparison

The maximum ATMU drawdown since its inception was -30.22%, smaller than the maximum FORM drawdown of -92.36%. Use the drawdown chart below to compare losses from any high point for ATMU and FORM.

Drawdown Indicators

	ATMU	FORM	Difference
Max Drawdown Largest peak-to-trough decline	-30.22%	-92.36%	+62.14%
Max Drawdown (1Y) Largest decline over 1 year	-30.22%	-25.80%	-4.42%
Max Drawdown (3Y) Largest decline over 3 years	-30.22%	-62.75%	+32.53%
Max Drawdown (5Y) Largest decline over 5 years	—	-62.75%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-64.42%	—
Current Drawdown Current decline from peak	-27.92%	-18.36%	-9.56%
Average Drawdown Average peak-to-trough decline	-8.53%	-51.51%	+42.98%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.41%	10.93%	-2.52%

Volatility

ATMU vs. FORM - Volatility Comparison

The current volatility for Atmus Filtration Technologies Inc. (ATMU) is 10.19%, while FormFactor, Inc. (FORM) has a volatility of 23.20%. This indicates that ATMU experiences smaller price fluctuations and is considered to be less risky than FORM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ATMU	FORM	Difference
Volatility (1M) Calculated over the trailing 1-month period	10.19%	23.20%	-13.01%
Volatility (6M) Calculated over the trailing 6-month period	30.37%	48.34%	-17.97%
Volatility (1Y) Calculated over the trailing 1-year period	35.80%	68.09%	-32.29%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	34.40%	55.54%	-21.14%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	34.40%	53.10%	-18.70%

Dividends

ATMU vs. FORM - Dividend Comparison

ATMU's dividend yield for the trailing twelve months is around 0.47%, while FORM has not paid dividends to shareholders.

Position	TTM	2025	2024
ATMU Atmus Filtration Technologies Inc.	0.47%	0.40%	0.26%
FORM FormFactor, Inc.	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both ATMU and FORM in my portfolio?

ATMU and FORM have a correlation of 0.48, 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 FORM?

FORM has higher volatility (23.20%) compared to ATMU (10.19%). In terms of maximum drawdown, ATMU dropped -30.22% vs FORM's -92.36%.

Which has better risk-adjusted returns?

FORM currently has the higher Sharpe Ratio (4.34 vs 0.87), 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.