ARMK vs IRM vs UNF Stock Comparison

Aramark, Iron Mountain and Unifirst Prices as of Oct 27, 2026 Peers: Industry group
ARMK Aramark
$55.52 +1.0% 1M +38.4% 1Y
Market cap
$14.63B
P/E
38.2x
Revenue (TTM)
$19.85B
Div. yield
0.86%
Facility Services Industrials
4 wins
IRM Iron Mountain Inc
$115.26 +3.5% 1M +8.3% 1Y
Market cap
$34.31B
P/E
82.0x
Revenue (TTM)
$7.56B
Div. yield
2.99%
Facility Services Industrials
7 wins
UNF Unifirst Corp
$250.72 -3.3% 1M +58.9% 1Y
Market cap
$4.53B
P/E
44.0x
Revenue (TTM)
—
Div. yield
0.58%
Facility Services Industrials
1 win

Head to Head

12 decided of 12

Iron Mountain leads on 7 of the 12 questions below (Iron Mountain 7, Aramark 4, Unifirst 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionARMKIRMUNFLeader
Larger companyMarket capitalisation $14.63B $34.31B $4.53B IRM
Cheaper on earningsLower P/E, profitable companies only 38.2x 82.0x 44.0x ARMK
Cheaper on forward earningsLower price / next fiscal year consensus EPS 25.8x 49.7x 31.8x ARMK
Faster revenue growthRevenue growth, trailing twelve months +11.0% +17.4% — IRM
More profitableNet margin, trailing twelve months 1.9% 5.5% — IRM
Better return on capitalReturn on invested capital 6.8% 7.6% — IRM
Less leveragedLower net debt / EBITDA 4.1x 6.7x — ARMK
Higher dividend yieldTrailing dividend yield 0.86% 2.99% 0.58% IRM
Better 1-year returnPrice return, last 12 months +38.4% +8.3% +58.9% UNF
Better 5-year returnAnnualised price return, 5 years +8.9%/yr +20.0%/yr +4.7%/yr IRM
Less volatileAnnualised volatility, 1 year 26.6% 33.3% 34.6% ARMK
Higher overall scoreMean of the five percentile scores vs peers 45/100 47/100 41/100 IRM

Percentile Scorecard

ARMKIRMUNF

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisARMKIRMUNF
Valuation 45 #62 of 112 21 #89 of 112 42 #65 of 112
Growth 84 #16 of 96 90 #11 of 96 20 #77 of 96
Profitability 47 #49 of 91 64 #33 of 91 –
Financial Health 20 #100 of 125 8 #115 of 125 91 #12 of 125
Shareholder Returns 29 #48 of 67 50 #34 of 67 11 #60 of 67
Overall 45 47 41
  • ARMK ranked among 130 companies in Business Services
  • IRM ranked among 130 companies in Business Services
  • UNF ranked among 130 companies in Business Services

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodARMKIRMUNFSPY
1 month +1.0%+3.5%-3.3% -0.2%
3 months -3.3%-8.3%-16.6% +3.9%
6 months +22.2%+2.3%-2.7% +8.2%
Year to date +50.6%+39.0%+30.0% +12.9%
1 year +38.4%+8.3%+58.9% +12.3%
3 years +108.2%+98.0%+56.4% +87.4%
3 years, per year +27.7%+25.6%+16.1% +23.3%
5 years +53.1%+148.3%+25.6% +67.9%
5 years, per year +8.9%+20.0%+4.7% +10.9%
10 years +49.4%+251.8%+109.6% +261.1%
10 years, per year +4.1%+13.4%+7.7% +13.7%

Risk

MeasureARMKIRMUNFSPY
Volatility, 1Y 26.6%33.3%34.6% 12.7%
Downside volatility, 1Y 23.4%34.4%25.8% 12.7%
Beta vs S&P 500, 1Y 0.631.170.21 1.00
Return / volatility, 1Y 1.440.251.70 0.97
Max drawdown, 5Y -46.4%-40.0%-34.9% -25.4%
From 52-week high -11.0%-13.4%-16.8% -1.2%
52-week high $62.39$133.06$301.48 $779.14
52-week low $36.04$78.86$150.02 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleARMKIRMUNF
P/E now vs peer median 38.2xmedian 21.2x 82.0xmedian 21.2x 44.0xmedian 21.2x
P/S now vs peer median 0.7xmedian 0.9x 4.5xmedian 0.9x 2.0xmedian 0.9x
EV/EBITDA now vs peer median 14.6xmedian 11.9x 20.3xmedian 11.9x —median 11.9x
P/FCF now vs peer median 33.8xmedian 13.7x -69.9xmedian 13.7x 57.8xmedian 13.7x
P/B now vs peer median 4.3xmedian 2.4x -26.8xmedian 2.4x 2.0xmedian 2.4x
PEG now vs peer median -3.26median 1.00 31.37median 1.00 —median 1.00

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsARMKIRMUNF
Revenue $19.85B $7.56B –
Gross profit $1.69B $4.10B –
Operating income $870.70M $1.42B –
Net income $382.71M $434.46M $109.49M
Free cash flow $432.81M -$490.92M –
EPS (diluted) $1.43 $1.40 –
Cash & equivalents $499.43M $204.79M $192.12M
Total debt $6.13B $17.35B –
Shares (diluted) 268.54M 299.85M 18.22M
Enterprise value $12.65B $33.83B $4.53B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricARMKIRMUNF
P/E 38.2x 82.0x 44.0x
P/FCF 33.8x -69.9x 57.8x
P/Operating cash flow 16.1x 20.7x 22.1x
P/S 0.7x 4.5x 2.0x
P/B 4.3x -26.8x 2.0x
P/Tangible book 9.9x -13.6x 2.0x
EV/EBITDA 14.6x 20.3x –
EV/EBIT 23.3x 36.3x –
EV/Revenue 1.0x 6.8x –
EV/FCF 46.8x -104.8x –
EV/Operating cash flow 22.2x 31.1x 22.1x
PEG (3Y EPS CAGR) -3.26 31.37 –

Growth

14 metrics
MetricARMKIRMUNF
Revenue growth (1Y) 11.0% 17.4% –
Revenue CAGR (3Y) 13.3% 13.0% –
Gross profit growth (1Y) 10.6% 13.5% –
Gross profit CAGR (3Y) 25.2% 11.1% –
Operating income growth (1Y) 9.8% 35.4% –
Operating income CAGR (3Y) 30.2% 12.8% –
Net income growth (1Y) 5.8% 867.3% -26.2%
Net income CAGR (3Y) -11.1% 4.1% 1.8%
EPS growth (1Y) 4.6% 897.5% –
EPS CAGR (3Y) -11.7% 2.6% –
Operating cash flow growth (1Y) 18.7% 31.7% -30.9%
Operating cash flow CAGR (3Y) 68.3% 17.2% -1.6%
Free cash flow growth (1Y) 54.2% 50.3% –
Free cash flow CAGR (3Y) 77.8% -60.8% –

Profitability

14 metrics
MetricARMKIRMUNF
Gross margin 8.5% 54.2% –
EBITDA margin 7.0% 33.6% –
Operating margin 4.4% 18.8% –
Pretax margin 2.6% 6.7% –
Net margin 1.9% 5.5% –
FCF margin 2.2% -6.5% –
Operating cash flow margin 4.6% 21.9% –
Return on equity 11.5% – –
Return on assets 2.8% 2.0% –
Return on invested capital 6.8% 7.6% –
Return on capital employed 8.0% 7.5% –
Asset turnover 1.4x 0.3x –
Cash conversion (OCF / net income) 2.4x 3.8x 1.9x
Stock comp / revenue 0.3% 1.8% –

Financial Health

11 metrics
MetricARMKIRMUNF
Debt / assets 43.9% 79.0% –
Debt / equity 1.8x -13.5x –
Net debt / EBITDA 4.1x 6.7x –
Debt / FCF 14.2x -35.3x –
Liabilities / assets 75.7% 105.8% 22.3%
Equity / assets 24.3% -5.8% 77.7%
Interest coverage – – –
Current ratio 1.3x 0.7x 3.1x
Quick ratio 1.0x 0.6x –
Cash ratio 0.2x 0.1x –
Altman Z-score 2.59 1.76 –

Shareholder Returns

7 metrics
MetricARMKIRMUNF
Dividend yield 0.9% 3.0% 0.6%
Net buyback yield 0.3% – –
Shareholder yield 1.2% 3.0% 0.6%
Payout ratio (earnings) 32.0% 229.5% –
Payout ratio (FCF) 28.3% -203.1% –
Dividend growth (1Y) 12.9% 16.5% –
Dividend CAGR (3Y) 2.3% 11.1% –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusARMKIRMUNF
Forward P/E 25.8xFY2026 49.7xFY2026 31.8xFY2027
EPS, next fiscal year $2.15FY2026 $2.32FY2026 $7.88FY2027
EPS growth, next FY +16.8%FY2026 +9.4%FY2026 -2.7%FY2027
EPS growth, the year after +21.9% +28.0% +12.3%
Revenue, next fiscal year $21.42BFY2026 $8.36BFY2026 $2.79BFY2027
Revenue growth, next FY +15.7%FY2026 +21.1%FY2026 +10.8%FY2027
Revenue growth, the year after -4.7% +2.2% -9.0%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersARMKIRMUNF
Held by institutions 98.9% 86.2% 81.3%
Institutions holding 544 1,161 340
Change in shares held, QoQ +0.0% +1.9% -2.5%
Institutions buying 320 598 162
Institutions selling 157 377 121
Buyers to sellers 2.04 1.59 1.34

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

ARMKIRMUNF
ARMK 1.00 0.19 0.25
IRM 0.19 1.00 0.03
UNF 0.25 0.03 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, ARMK, IRM and UNF?

Iron Mountain (IRM) is the largest by market capitalisation: Aramark (ARMK) $14.63B, Iron Mountain (IRM) $34.31B, Unifirst (UNF) $4.53B.

Which stock is cheaper, ARMK, IRM and UNF?

Aramark (ARMK) trades on the lowest price-to-earnings ratio (Aramark (ARMK) 38.2x, Iron Mountain (IRM) 82.0x, Unifirst (UNF) 44.0x). On next year's consensus earnings, Aramark (ARMK) is cheapest (Aramark (ARMK) 25.8x, Iron Mountain (IRM) 49.7x, Unifirst (UNF) 31.8x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Iron Mountain (IRM) grew revenue fastest over the trailing twelve months: Aramark (ARMK) +11.0%, Iron Mountain (IRM) +17.4%.

Which company is more profitable?

Iron Mountain (IRM) has the highest net margin (Aramark (ARMK) 1.9%, Iron Mountain (IRM) 5.5%). On return on invested capital, Iron Mountain (IRM) leads (Aramark (ARMK) 6.8%, Iron Mountain (IRM) 7.6%).

Which stock has performed better?

Over the past year Unifirst (UNF) returned the most: Aramark (ARMK) +38.4%, Iron Mountain (IRM) +8.3%, Unifirst (UNF) +58.9%. Over five years, Iron Mountain (IRM) compounded fastest (Aramark (ARMK) +8.9%/yr, Iron Mountain (IRM) +20.0%/yr, Unifirst (UNF) +4.7%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Iron Mountain (IRM) has the highest dividend yield: Aramark (ARMK) 0.86%, Iron Mountain (IRM) 2.99%, Unifirst (UNF) 0.58%.

Which stock is riskier?

By one-year price volatility, Aramark (ARMK) has been the steadiest (Aramark (ARMK) 26.6%, Iron Mountain (IRM) 33.3%, Unifirst (UNF) 34.6%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, ARMK, IRM and UNF?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Iron Mountain (IRM) leads on 7. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.