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Side-by-side financial comparison of AVIS BUDGET GROUP, INC. (CAR) and Iron Mountain (IRM). Click either name above to swap in a different company.

AVIS BUDGET GROUP, INC. is the larger business by last-quarter revenue ($2.7B vs $1.8B, roughly 1.4× Iron Mountain). Iron Mountain runs the higher net margin — 5.1% vs -28.0%, a 33.1% gap on every dollar of revenue. On growth, Iron Mountain posted the faster year-over-year revenue change (16.6% vs -1.7%). Over the past eight quarters, Iron Mountain's revenue compounded faster (11.7% CAGR vs 2.2%).

Avis Budget Group, Inc. is an American car rental agency holding company headquartered in Parsippany, New Jersey. It is the parent company of several brands including Avis Car Rental, Budget Rent a Car, Budget Truck Rental, Payless Car Rental, and Zipcar.

Iron Mountain Inc. is an American enterprise information management services company founded in 1951 and headquartered in Portsmouth, New Hampshire. Its records management, information destruction, and data backup and recovery services are supplied to more than 220,000 customers in 58 countries throughout North America, Europe, Latin America, Africa, Asia, and Oceania.

CAR vs IRM — Head-to-Head

Bigger by revenue
CAR
CAR
1.4× larger
CAR
$2.7B
$1.8B
IRM
Growing faster (revenue YoY)
IRM
IRM
+18.3% gap
IRM
16.6%
-1.7%
CAR
Higher net margin
IRM
IRM
33.1% more per $
IRM
5.1%
-28.0%
CAR
Faster 2-yr revenue CAGR
IRM
IRM
Annualised
IRM
11.7%
2.2%
CAR

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CAR
CAR
IRM
IRM
Revenue
$2.7B
$1.8B
Net Profit
$-747.0M
$93.1M
Gross Margin
Operating Margin
-27.8%
18.5%
Net Margin
-28.0%
5.1%
Revenue YoY
-1.7%
16.6%
Net Profit YoY
61.8%
-11.9%
EPS (diluted)
$-21.11
$0.31

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
CAR
CAR
IRM
IRM
Q4 25
$2.7B
$1.8B
Q3 25
$3.5B
$1.8B
Q2 25
$3.0B
$1.7B
Q1 25
$2.4B
$1.6B
Q4 24
$2.7B
$1.6B
Q3 24
$3.5B
$1.6B
Q2 24
$3.0B
$1.5B
Q1 24
$2.6B
$1.5B
Net Profit
CAR
CAR
IRM
IRM
Q4 25
$-747.0M
$93.1M
Q3 25
$359.0M
$86.2M
Q2 25
$4.0M
$-43.3M
Q1 25
$-505.0M
$16.2M
Q4 24
$-2.0B
$105.7M
Q3 24
$237.0M
$-33.7M
Q2 24
$14.0M
$34.6M
Q1 24
$-114.0M
$77.0M
Operating Margin
CAR
CAR
IRM
IRM
Q4 25
-27.8%
18.5%
Q3 25
13.4%
17.6%
Q2 25
0.5%
15.2%
Q1 25
-27.9%
16.0%
Q4 24
-104.8%
17.9%
Q3 24
9.5%
16.1%
Q2 24
0.9%
15.0%
Q1 24
-5.6%
16.6%
Net Margin
CAR
CAR
IRM
IRM
Q4 25
-28.0%
5.1%
Q3 25
10.2%
4.9%
Q2 25
0.1%
-2.5%
Q1 25
-20.8%
1.0%
Q4 24
-72.3%
6.7%
Q3 24
6.8%
-2.2%
Q2 24
0.5%
2.3%
Q1 24
-4.5%
5.2%
EPS (diluted)
CAR
CAR
IRM
IRM
Q4 25
$-21.11
$0.31
Q3 25
$10.11
$0.28
Q2 25
$0.10
$-0.15
Q1 25
$-14.35
$0.05
Q4 24
$-55.08
$0.35
Q3 24
$6.65
$-0.11
Q2 24
$0.41
$0.12
Q1 24
$-3.21
$0.25

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
CAR
CAR
IRM
IRM
Cash + ST InvestmentsLiquidity on hand
$519.0M
$158.5M
Total DebtLower is stronger
$16.2B
Stockholders' EquityBook value
$-3.1B
$-981.0M
Total Assets
$31.3B
$21.1B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CAR
CAR
IRM
IRM
Q4 25
$519.0M
$158.5M
Q3 25
$564.0M
Q2 25
$541.0M
Q1 25
$516.0M
Q4 24
$534.0M
$155.7M
Q3 24
$602.0M
Q2 24
$511.0M
Q1 24
$522.0M
Total Debt
CAR
CAR
IRM
IRM
Q4 25
$16.2B
Q3 25
$15.5B
Q2 25
$14.8B
Q1 25
$14.2B
Q4 24
$13.0B
Q3 24
$13.2B
Q2 24
$12.8B
Q1 24
$12.6B
Stockholders' Equity
CAR
CAR
IRM
IRM
Q4 25
$-3.1B
$-981.0M
Q3 25
$-2.4B
$-882.0M
Q2 25
$-2.7B
$-767.4M
Q1 25
$-2.8B
$-698.5M
Q4 24
$-2.3B
$-503.1M
Q3 24
$-238.0M
$-259.0M
Q2 24
$-490.0M
$-132.9M
Q1 24
$-515.0M
$18.5M
Total Assets
CAR
CAR
IRM
IRM
Q4 25
$31.3B
$21.1B
Q3 25
$32.5B
$20.6B
Q2 25
$32.4B
$20.2B
Q1 25
$29.0B
$19.4B
Q4 24
$29.0B
$18.7B
Q3 24
$32.7B
$18.5B
Q2 24
$33.9B
$18.0B
Q1 24
$33.5B
$17.8B
Debt / Equity
CAR
CAR
IRM
IRM
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
679.18×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
CAR
CAR
IRM
IRM
Operating Cash FlowLast quarter
$437.0M
$500.0M
Free Cash FlowOCF − Capex
$-16.2M
FCF MarginFCF / Revenue
-0.9%
Capex IntensityCapex / Revenue
28.0%
Cash ConversionOCF / Net Profit
5.37×
TTM Free Cash FlowTrailing 4 quarters
$-931.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CAR
CAR
IRM
IRM
Q4 25
$437.0M
$500.0M
Q3 25
$1.4B
$267.6M
Q2 25
$837.0M
$375.1M
Q1 25
$619.0M
$197.3M
Q4 24
$772.0M
$431.6M
Q3 24
$1.3B
$252.9M
Q2 24
$884.0M
$382.2M
Q1 24
$589.0M
$130.0M
Free Cash Flow
CAR
CAR
IRM
IRM
Q4 25
$-16.2M
Q3 25
$-256.3M
Q2 25
$-181.6M
Q1 25
$-477.5M
Q4 24
$-186.0M
Q3 24
$-143.2M
Q2 24
$-14.6M
Q1 24
$-251.1M
FCF Margin
CAR
CAR
IRM
IRM
Q4 25
-0.9%
Q3 25
-14.6%
Q2 25
-10.6%
Q1 25
-30.0%
Q4 24
-11.8%
Q3 24
-9.2%
Q2 24
-1.0%
Q1 24
-17.0%
Capex Intensity
CAR
CAR
IRM
IRM
Q4 25
28.0%
Q3 25
29.9%
Q2 25
32.5%
Q1 25
42.4%
Q4 24
39.1%
Q3 24
25.4%
Q2 24
25.9%
Q1 24
25.8%
Cash Conversion
CAR
CAR
IRM
IRM
Q4 25
5.37×
Q3 25
3.91×
3.10×
Q2 25
209.25×
Q1 25
12.15×
Q4 24
4.08×
Q3 24
5.37×
Q2 24
63.14×
11.04×
Q1 24
1.69×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

CAR
CAR

Avis$1.5B57%
Budget$979.0M37%
Other Brands$171.0M6%

IRM
IRM

Storage Rental$1.1B58%
Services$781.9M42%

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