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STOCK COMPARISON

Atmus Filtration Technologies vs O’Reilly Automotive: Fair Value & Quality

Both stocks run through our valuation models. Here is how Atmus Filtration Technologies (ATMU) and O’Reilly Automotive (ORLY) compare, as of Sep 24, 2026.

As of Sep 24, 2026, Fair Value Calculator sees Atmus Filtration Technologies as the less overvalued of the two: Atmus Filtration Technologies trades at $44.94 versus a fair value of $36.03 (-20%), while O’Reilly Automotive trades at $85.90 versus $48.08 (-44%).
Atmus Filtration Technologies
ATMU · USD · Industrials
-20%
upside to fair value
overvalued
Price$44.94
Fair Value$36.03
Quality66/100
O’Reilly Automotive
ORLY · USD · Consumer Discretionary
-44%
upside to fair value
overvalued
Price$85.90
Fair Value$48.08
Quality65/100
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Head-to-head numbers

Green is the better side of a row, red the weaker one (for valuation multiples: lower = cheaper). Grey rows are for reference only and are not scored.

betterweakerfor reference, not scored

Atmus Filtration TechnologiesO’Reilly Automotive
Valuation
18.0×P/E (TTM)28.0×
2.31×P/S (TTM)4.04×
11.12×P/BNegative equity
13.5×EV/EBITDA19.4×
n/aPEG1.84×
−19.8%Fair value upside−44.0%
0.5%Dividend yieldn/a
$0.22Dividend per sharen/a
Profitability
16%Operating margin18%
1.02×EBIT margin trend (5Y)0.93×
63%Return on equityNegative equity
12%Return on assets14%
Growth
15%Revenue growth (YoY)10%
4.1%Avg. growth/yr (3Y)7.3%
7.4%Avg. growth/yr (5Y)8.9%
+7.1%Value creation/yr+12.5%
Balance & size
8.6×Interest coverage (EBIT/interest)14.7×
1.43×Debt / equityNegative equity
$4BMarket cap$73B
healthyGrowth qualityhealthy
Valuation multiples (P/E, P/S, P/B, EV/EBITDA) are shown but not scored here: the two companies sit in different sectors, and multiples only compare fairly between similar business models. PEG stays scored, as it relates the P/E to growth.

O’Reilly Automotive leads: 2 to 6 metric wins.

n/a = not meaningfully computable, for example with negative equity.

Quality in detail

The quality score, broken down into the same factor families as on the stock page, 0 to 100 per family.

Atmus Filtration Technologiesof which business quality 63 · market factors 31 O’Reilly Automotiveof which business quality 64 · market factors 45
ProfitabilityMargins and returns on capital today
82
83
Quality GrowthAre margins and returns improving?
40
43
CashflowEarnings quality: real cash, not paper profit
47
46
Fin. StrengthBalance sheet, leverage, solvency risk
55
68
InvestmentDisciplined investing over empire-building
72
64
Low VolatilityCalm price path (market factor)
46
87
MomentumPrice trend over the last 3–12 months (market factor)
27
34
52W MomentumDistance to the 52-week high (market factor)
21
14
Net IssuanceShare count: buybacks or dilution?
88
80

What the models say

How far the median fair value (base case) per model family sits from the current price, in percent. The amount in the currency of the trading venue is shown underneath.

above the price, more than 15% above close to the price, 85% to 115% of the price below the price, more than 15% below

Model familyAtmus Filtration TechnologiesPrice $44.94O’Reilly AutomotivePrice $85.90
DCF Models-17%below the price$37.38-42%below the price$49.94
Earnings-Based-55%below the price$20.13-60%below the price$34.12
Dividend Discount-93%below the price$3.31n/a
Multiples0%close to the price$45.10-41%below the price$50.49
Asset-Based-93%below the price$3.11n/a
Growth DCF-28%below the price$32.36-61%below the price$33.60
Economic Profit-9%close to the price$40.94-58%below the price$36.11
Growth Earnings+2%close to the price$45.84-33%below the price$57.52
Minimum-93%below the price$3.11-61%below the price$33.60
Maximum+2%close to the price$45.84-33%below the price$57.52
Median-22%below the price$34.87-50%below the price$43.03
Geometric mean-57%below the price$19.53-50%below the price$42.63

Minimum, maximum, median and geometric mean refer to the family values in this table. Geometric because deviations are ratios: half the price and twice the price average to 100%, not 125%.

Atmus Filtration Technologies: 19 of 26 models see the stock below the current price.

O’Reilly Automotive: 20 of 21 models see the stock below the current price.

Scenario ranges

From our cautious bear scenario to the optimistic bull scenario. The white tick is the current price (value above it), the green tick the fair value (value below it): if the price sits left of the fair value, there is room to rise.

Atmus Filtration Technologies
Price $44.94
Fair Value $36.03
Bear $21.82Bull $54.47
O’Reilly Automotive
Price $85.90
Fair Value $48.08
Bear $30.59Bull $74.78

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Ranked within their sector

Where each stock sits within its sector peer group. Band = middle 50% of peers, tick = median, dot = this stock.

Atmus Filtration Technologies · Industrials

Quality score66 · Top 25%
Fair value upside-20% · below median

O’Reilly Automotive · Consumer Discretionary

Quality score65 · Top 25%
Fair value upside-44% · bottom 25%

Bottom line

As of Sep 24, 2026, Fair Value Calculator sees Atmus Filtration Technologies as the less overvalued of the two: Atmus Filtration Technologies trades at $44.94 versus a fair value of $36.03 (-20%), while O’Reilly Automotive trades at $85.90 versus $48.08 (-44%).

Atmus Filtration Technologies has the higher quality score (66/100).

Open Atmus Filtration Technologies live analysis →
Atmus Filtration Technologies · O’Reilly Automotive

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A model-based valuation snapshot from 26 models. Values change with price and fundamentals; the date shown above applies.