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Side-by-side financial comparison of AAR CORP (AIR) and Knife River Corp (KNF). Click either name above to swap in a different company.

AAR CORP is the larger business by last-quarter revenue ($795.3M vs $755.1M, roughly 1.1× Knife River Corp). AAR CORP runs the higher net margin — 4.4% vs 4.2%, a 0.1% gap on every dollar of revenue. On growth, AAR CORP posted the faster year-over-year revenue change (15.9% vs 14.9%). Knife River Corp produced more free cash flow last quarter ($138.2M vs $6.2M).

AAR Corp. is an American provider of aircraft maintenance services to commercial and government customers worldwide. The company is headquartered in Wood Dale, Illinois, a Chicago suburb. The company employs about 6,000 people, operating in about 30 different countries. John Holmes is the current CEO.

Columbia River Knife & Tool, Inc. (CRKT) is an American knife company established in 1994, and currently based in Tualatin, Oregon, United States. The company's president and sales executive is Rod Bremer and the finance executive is Peggy Bremer.

AIR vs KNF — Head-to-Head

Bigger by revenue
AIR
AIR
1.1× larger
AIR
$795.3M
$755.1M
KNF
Growing faster (revenue YoY)
AIR
AIR
+1.0% gap
AIR
15.9%
14.9%
KNF
Higher net margin
AIR
AIR
0.1% more per $
AIR
4.4%
4.2%
KNF
More free cash flow
KNF
KNF
$132.0M more FCF
KNF
$138.2M
$6.2M
AIR

Income Statement — Q2 FY2026 vs Q4 FY2025

Metric
AIR
AIR
KNF
KNF
Revenue
$795.3M
$755.1M
Net Profit
$34.6M
$32.0M
Gross Margin
19.7%
19.2%
Operating Margin
6.0%
8.6%
Net Margin
4.4%
4.2%
Revenue YoY
15.9%
14.9%
Net Profit YoY
213.1%
37.6%
EPS (diluted)
$0.90
$0.56

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
AIR
AIR
KNF
KNF
Q4 25
$795.3M
$755.1M
Q3 25
$739.6M
$1.2B
Q2 25
$833.8M
Q1 25
$353.5M
Q4 24
$657.2M
Q3 24
$1.1B
Q2 24
$806.9M
Q1 24
$329.6M
Net Profit
AIR
AIR
KNF
KNF
Q4 25
$34.6M
$32.0M
Q3 25
$34.4M
$143.2M
Q2 25
$50.6M
Q1 25
$-68.7M
Q4 24
$23.3M
Q3 24
$148.1M
Q2 24
$77.9M
Q1 24
$-47.6M
Gross Margin
AIR
AIR
KNF
KNF
Q4 25
19.7%
19.2%
Q3 25
18.1%
23.6%
Q2 25
18.9%
Q1 25
-2.7%
Q4 24
17.4%
Q3 24
24.7%
Q2 24
21.8%
Q1 24
2.0%
Operating Margin
AIR
AIR
KNF
KNF
Q4 25
6.0%
8.6%
Q3 25
6.4%
17.9%
Q2 25
10.6%
Q1 25
-23.4%
Q4 24
6.7%
Q3 24
18.9%
Q2 24
14.5%
Q1 24
-16.3%
Net Margin
AIR
AIR
KNF
KNF
Q4 25
4.4%
4.2%
Q3 25
4.7%
11.9%
Q2 25
6.1%
Q1 25
-19.4%
Q4 24
3.5%
Q3 24
13.4%
Q2 24
9.7%
Q1 24
-14.5%
EPS (diluted)
AIR
AIR
KNF
KNF
Q4 25
$0.90
$0.56
Q3 25
$0.95
$2.52
Q2 25
$0.89
Q1 25
$-1.21
Q4 24
$0.42
Q3 24
$2.60
Q2 24
$1.37
Q1 24
$-0.84

Balance Sheet & Financial Strength

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

Metric
AIR
AIR
KNF
KNF
Cash + ST InvestmentsLiquidity on hand
$75.6M
$73.8M
Total DebtLower is stronger
$952.7M
$1.2B
Stockholders' EquityBook value
$1.6B
$1.6B
Total Assets
$3.2B
$3.7B
Debt / EquityLower = less leverage
0.61×
0.71×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AIR
AIR
KNF
KNF
Q4 25
$75.6M
$73.8M
Q3 25
$80.0M
$30.7M
Q2 25
$26.6M
Q1 25
$86.1M
Q4 24
$236.8M
Q3 24
$220.4M
Q2 24
$15.5M
Q1 24
$128.4M
Total Debt
AIR
AIR
KNF
KNF
Q4 25
$952.7M
$1.2B
Q3 25
$1.0B
$1.2B
Q2 25
$1.4B
Q1 25
$1.2B
Q4 24
$677.4M
Q3 24
$678.5M
Q2 24
$679.5M
Q1 24
$680.6M
Stockholders' Equity
AIR
AIR
KNF
KNF
Q4 25
$1.6B
$1.6B
Q3 25
$1.2B
$1.6B
Q2 25
$1.5B
Q1 25
$1.4B
Q4 24
$1.5B
Q3 24
$1.4B
Q2 24
$1.3B
Q1 24
$1.2B
Total Assets
AIR
AIR
KNF
KNF
Q4 25
$3.2B
$3.7B
Q3 25
$2.9B
$3.7B
Q2 25
$3.6B
Q1 25
$3.3B
Q4 24
$2.9B
Q3 24
$2.9B
Q2 24
$2.7B
Q1 24
$2.5B
Debt / Equity
AIR
AIR
KNF
KNF
Q4 25
0.61×
0.71×
Q3 25
0.82×
0.74×
Q2 25
0.93×
Q1 25
0.83×
Q4 24
0.46×
Q3 24
0.47×
Q2 24
0.52×
Q1 24
0.56×

Cash Flow & Capital Efficiency

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

Metric
AIR
AIR
KNF
KNF
Operating Cash FlowLast quarter
$13.6M
$195.9M
Free Cash FlowOCF − Capex
$6.2M
$138.2M
FCF MarginFCF / Revenue
0.8%
18.3%
Capex IntensityCapex / Revenue
0.9%
7.6%
Cash ConversionOCF / Net Profit
0.39×
6.12×
TTM Free Cash FlowTrailing 4 quarters
$-69.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AIR
AIR
KNF
KNF
Q4 25
$13.6M
$195.9M
Q3 25
$-44.9M
$250.4M
Q2 25
$-42.6M
Q1 25
$-125.3M
Q4 24
$172.4M
Q3 24
$239.7M
Q2 24
$-46.6M
Q1 24
$-43.2M
Free Cash Flow
AIR
AIR
KNF
KNF
Q4 25
$6.2M
$138.2M
Q3 25
$-53.6M
$188.7M
Q2 25
$-196.2M
Q1 25
$-200.2M
Q4 24
$127.2M
Q3 24
$216.1M
Q2 24
$-106.5M
Q1 24
$-86.9M
FCF Margin
AIR
AIR
KNF
KNF
Q4 25
0.8%
18.3%
Q3 25
-7.2%
15.7%
Q2 25
-23.5%
Q1 25
-56.6%
Q4 24
19.3%
Q3 24
19.6%
Q2 24
-13.2%
Q1 24
-26.4%
Capex Intensity
AIR
AIR
KNF
KNF
Q4 25
0.9%
7.6%
Q3 25
1.2%
5.1%
Q2 25
18.4%
Q1 25
21.2%
Q4 24
6.9%
Q3 24
2.1%
Q2 24
7.4%
Q1 24
13.3%
Cash Conversion
AIR
AIR
KNF
KNF
Q4 25
0.39×
6.12×
Q3 25
-1.31×
1.75×
Q2 25
-0.84×
Q1 25
Q4 24
7.41×
Q3 24
1.62×
Q2 24
-0.60×
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

AIR
AIR

Commercial Customer$268.1M34%
Repair And Engineering$244.5M31%
Integrated Solutions$175.8M22%
Government And Defense Customer$85.5M11%
Expeditionary Services$21.4M3%

KNF
KNF

Services$347.2M46%
Ready Mix Concrete$88.4M12%
Contracting Services Public Sector$80.2M11%
Aggregates$73.9M10%
Energy Services Segment$56.2M7%
Liquid Asphalt$49.1M7%
Other$43.2M6%
Asphalt$22.7M3%

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