FORM vs. ATMU

Last updated Jun 4, 2026

FORM (FormFactor, Inc.) and ATMU (Atmus Filtration Technologies Inc.) are both stocks. FORM operates in Semiconductors (Technology), while ATMU operates in Pollution & Treatment Controls (Industrials). Over the past 3 years, FORM returned 58.75%/yr vs 32.34%/yr for ATMU. At a 0.34 correlation, their price movements are largely independent.

Performance

FORM vs. ATMU - Performance Comparison

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

Returns By Period

In the year-to-date period, FORM achieves a 125.92% return, which is significantly higher than ATMU's -8.80% return.

FORM

• 1D: 0.73%
• 1M: -6.21%
• YTD: 125.92%
• 6M: 120.08%
• 1Y: 301.85%
• 3Y*: 58.75%
• 5Y*: 29.27%
• 10Y*: 32.81%

ATMU

• 1D: 3.39%
• 1M: -10.16%
• YTD: -8.80%
• 6M: -9.43%
• 1Y: 31.28%
• 3Y*: 32.34%
• 5Y*: —
• 10Y*: —

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

FORM vs. ATMU - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
FORM FormFactor, Inc.	125.92%	26.77%	5.49%	31.16%
ATMU Atmus Filtration Technologies Inc.	-8.80%	33.16%	67.28%	8.50%

Correlation

The correlation between FORM and ATMU 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	0.34
Correlation (All Time) Calculated using the full available price history since May 30, 2023	0.34

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

Fundamentals

Market Cap FORM : $10.01B ATMU : $3.87B
EPS FORM : $0.87 ATMU : $2.56
PE Ratio FORM : 144.62 ATMU : 18.47
PS Ratio FORM : 11.77 ATMU : 2.89
PB Ratio FORM : 9.45 ATMU : 9.60
Total Revenue (TTM) FORM : $839.78M ATMU : $1.35B
Gross Profit (TTM) FORM : $332.34M ATMU : $529.00M
EBITDA (TTM) FORM : $97.87M ATMU : $334.60M

Return for Risk

FORM vs. ATMU — Risk / Return Rank

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

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

ATMU

ATMU Risk / Return Rank: 64
ATMU Sharpe Ratio Rank: 68
ATMU Sortino Ratio Rank: 60
ATMU Omega Ratio Rank: 62
ATMU Calmar Ratio Rank: 62
ATMU Martin Ratio Rank: 71

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.

FORM vs. ATMU - Risk-Adjusted Trends Comparison

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

	FORM	ATMU	Difference
Sharpe ratio Return per unit of total volatility	4.47	0.88	+3.59
Sortino ratio Return per unit of downside risk	3.99	1.29	+2.70
Omega ratio Gain probability vs. loss probability	1.55	1.19	+0.36
Calmar ratio Return relative to maximum drawdown	11.79	1.06	+10.73
Martin ratio Return relative to average drawdown	27.93	3.97	+23.96
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FORM vs. ATMU - Sharpe Ratio Comparison

The current FORM Sharpe Ratio is 4.47, which is higher than the ATMU Sharpe Ratio of 0.88. The chart below compares the historical Sharpe Ratios of FORM and ATMU, 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

	FORM	ATMU	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	4.47	0.88	+3.59
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	0.18	0.88	-0.70

Drawdowns

FORM vs. ATMU - Drawdown Comparison

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

Drawdown Indicators

	FORM	ATMU	Difference
Max Drawdown Largest peak-to-trough decline	-92.36%	-30.22%	-62.14%
Max Drawdown (1Y) Largest decline over 1 year	-25.80%	-30.22%	+4.42%
Max Drawdown (3Y) Largest decline over 3 years	-62.75%	-30.22%	-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	-18.74%	-27.86%	+9.12%
Average Drawdown Average peak-to-trough decline	-51.51%	-8.48%	-43.03%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.86%	8.04%	+2.82%

Volatility

FORM vs. ATMU - Volatility Comparison

FormFactor, Inc. (FORM) has a higher volatility of 24.61% compared to Atmus Filtration Technologies Inc. (ATMU) at 12.27%. This indicates that FORM's price experiences larger fluctuations and is considered to be riskier than ATMU based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FORM	ATMU	Difference
Volatility (1M) Calculated over the trailing 1-month period	24.61%	12.27%	+12.34%
Volatility (6M) Calculated over the trailing 6-month period	48.36%	30.47%	+17.89%
Volatility (1Y) Calculated over the trailing 1-year period	68.20%	35.82%	+32.38%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	55.58%	34.44%	+21.14%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	53.11%	34.44%	+18.67%

Dividends

FORM vs. ATMU - Dividend Comparison

FORM has not paid dividends to shareholders, while ATMU's dividend yield for the trailing twelve months is around 0.57%.

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 FORM and ATMU in my portfolio?

FORM and ATMU 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, FORM or ATMU?

FORM has higher volatility (24.61%) compared to ATMU (12.27%). In terms of maximum drawdown, FORM dropped -92.36% vs ATMU's -30.22%.

Which has better risk-adjusted returns?

FORM currently has the higher Sharpe Ratio (4.47 vs 0.88), 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.