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Side-by-side financial comparison of AAON, INC. (AAON) and SPIRE INC (SR). Click either name above to swap in a different company.

SPIRE INC is the larger business by last-quarter revenue ($762.2M vs $424.2M, roughly 1.8× AAON, INC.). SPIRE INC runs the higher net margin — 12.5% vs 7.6%, a 4.9% gap on every dollar of revenue. On growth, AAON, INC. posted the faster year-over-year revenue change (42.5% vs 13.9%). Over the past eight quarters, AAON, INC.'s revenue compounded faster (27.2% CAGR vs -17.8%).

AAON, Inc. manufactures heating, ventilation, and air conditioning equipment for commercial and industrial indoor environments. AAON is headquartered in Tulsa, Oklahoma and has manufacturing facilities in Longview, TX, Parkville, MO, and Redmond, OR. AAON employs approximately 4,000 people worldwide and has annual sales in excess of $880 million.

Spire Inc. is a regional public utility holding company based in St. Louis, Missouri, providing natural gas service through its regulated core utility operations while engaging in non-regulated activities that provide business opportunities. Its primary subsidiary Laclede Gas Company is the largest natural gas distribution utility in Missouri, serving approximately 631,000 residential, commercial and industrial customers in the City of St. Louis and ten counties in eastern Missouri. Its corpo...

AAON vs SR — Head-to-Head

Bigger by revenue
SR
SR
1.8× larger
SR
$762.2M
$424.2M
AAON
Growing faster (revenue YoY)
AAON
AAON
+28.6% gap
AAON
42.5%
13.9%
SR
Higher net margin
SR
SR
4.9% more per $
SR
12.5%
7.6%
AAON
Faster 2-yr revenue CAGR
AAON
AAON
Annualised
AAON
27.2%
-17.8%
SR

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
AAON
AAON
SR
SR
Revenue
$424.2M
$762.2M
Net Profit
$32.0M
$95.0M
Gross Margin
25.9%
55.1%
Operating Margin
10.4%
22.8%
Net Margin
7.6%
12.5%
Revenue YoY
42.5%
13.9%
Net Profit YoY
29.7%
16.9%
EPS (diluted)
$0.38
$1.54

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
AAON
AAON
SR
SR
Q4 25
$424.2M
$762.2M
Q3 25
$384.2M
$334.1M
Q2 25
$311.6M
$421.9M
Q1 25
$322.1M
$1.1B
Q4 24
$297.7M
$669.1M
Q3 24
$327.3M
$293.8M
Q2 24
$313.6M
$414.1M
Q1 24
$262.1M
$1.1B
Net Profit
AAON
AAON
SR
SR
Q4 25
$32.0M
$95.0M
Q3 25
$30.8M
$-39.8M
Q2 25
$15.5M
$20.9M
Q1 25
$29.3M
$209.3M
Q4 24
$24.7M
$81.3M
Q3 24
$52.6M
$-25.9M
Q2 24
$52.2M
$-12.6M
Q1 24
$39.0M
$204.3M
Gross Margin
AAON
AAON
SR
SR
Q4 25
25.9%
55.1%
Q3 25
27.8%
Q2 25
26.6%
Q1 25
26.8%
Q4 24
26.1%
55.6%
Q3 24
34.9%
Q2 24
36.1%
Q1 24
35.2%
Operating Margin
AAON
AAON
SR
SR
Q4 25
10.4%
22.8%
Q3 25
11.3%
-0.1%
Q2 25
7.6%
16.4%
Q1 25
10.9%
29.1%
Q4 24
9.9%
22.2%
Q3 24
20.0%
6.7%
Q2 24
21.4%
7.4%
Q1 24
17.9%
26.5%
Net Margin
AAON
AAON
SR
SR
Q4 25
7.6%
12.5%
Q3 25
8.0%
-11.9%
Q2 25
5.0%
5.0%
Q1 25
9.1%
19.9%
Q4 24
8.3%
12.2%
Q3 24
16.1%
-8.8%
Q2 24
16.7%
-3.0%
Q1 24
14.9%
18.1%
EPS (diluted)
AAON
AAON
SR
SR
Q4 25
$0.38
$1.54
Q3 25
$0.37
$-0.77
Q2 25
$0.19
$0.29
Q1 25
$0.35
$3.51
Q4 24
$0.31
$1.34
Q3 24
$0.63
$-0.63
Q2 24
$0.62
$-0.28
Q1 24
$0.46
$3.58

Balance Sheet & Financial Strength

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

Metric
AAON
AAON
SR
SR
Cash + ST InvestmentsLiquidity on hand
$13.0K
$4.1M
Total DebtLower is stronger
Stockholders' EquityBook value
$895.0M
$3.4B
Total Assets
$1.7B
$11.9B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AAON
AAON
SR
SR
Q4 25
$13.0K
$4.1M
Q3 25
$1.0M
$5.7M
Q2 25
$14.0K
$13.1M
Q1 25
$994.0K
$15.2M
Q4 24
$14.0K
$11.5M
Q3 24
$15.0K
$4.5M
Q2 24
$13.0K
$7.4M
Q1 24
$8.4M
$25.6M
Stockholders' Equity
AAON
AAON
SR
SR
Q4 25
$895.0M
$3.4B
Q3 25
$863.1M
$3.4B
Q2 25
$832.7M
$3.5B
Q1 25
$815.9M
$3.5B
Q4 24
$824.6M
$3.3B
Q3 24
$796.9M
$3.2B
Q2 24
$740.5M
$3.3B
Q1 24
$784.8M
$3.4B
Total Assets
AAON
AAON
SR
SR
Q4 25
$1.7B
$11.9B
Q3 25
$1.5B
$11.6B
Q2 25
$1.4B
$11.4B
Q1 25
$1.3B
$11.3B
Q4 24
$1.2B
$11.3B
Q3 24
$1.0B
$10.9B
Q2 24
$1.0B
$10.7B
Q1 24
$952.9M
$10.7B

Cash Flow & Capital Efficiency

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

Metric
AAON
AAON
SR
SR
Operating Cash FlowLast quarter
$19.3M
$81.0M
Free Cash FlowOCF − Capex
$-121.8M
FCF MarginFCF / Revenue
-16.0%
Capex IntensityCapex / Revenue
26.6%
Cash ConversionOCF / Net Profit
0.60×
0.85×
TTM Free Cash FlowTrailing 4 quarters
$-286.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AAON
AAON
SR
SR
Q4 25
$19.3M
$81.0M
Q3 25
$12.3M
$-4.9M
Q2 25
$-21.8M
$129.1M
Q1 25
$-9.2M
$372.7M
Q4 24
$845.0K
$81.1M
Q3 24
$63.8M
$82.9M
Q2 24
$35.5M
$270.1M
Q1 24
$92.4M
$489.4M
Free Cash Flow
AAON
AAON
SR
SR
Q4 25
$-121.8M
Q3 25
$-227.6M
Q2 25
$-91.4M
Q1 25
$154.1M
Q4 24
$-179.5M
Q3 24
$-146.9M
Q2 24
$47.9M
Q1 24
$306.6M
FCF Margin
AAON
AAON
SR
SR
Q4 25
-16.0%
Q3 25
-68.1%
Q2 25
-21.7%
Q1 25
14.7%
Q4 24
-26.8%
Q3 24
-50.0%
Q2 24
11.6%
Q1 24
27.2%
Capex Intensity
AAON
AAON
SR
SR
Q4 25
26.6%
Q3 25
66.7%
Q2 25
52.3%
Q1 25
20.8%
Q4 24
38.9%
Q3 24
78.2%
Q2 24
53.7%
Q1 24
16.2%
Cash Conversion
AAON
AAON
SR
SR
Q4 25
0.60×
0.85×
Q3 25
0.40×
Q2 25
-1.41×
6.18×
Q1 25
-0.31×
1.78×
Q4 24
0.03×
1.00×
Q3 24
1.21×
Q2 24
0.68×
Q1 24
2.37×
2.40×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AAON
AAON

AAON Oklahoma$215.5M51%
Bas X$106.1M25%
AAON Coil Products$102.6M24%

SR
SR

Residential$474.9M62%
Commercial And Industrial$148.4M19%
Gas Marketing$41.1M5%
Midstream$39.0M5%
Transportation$37.1M5%
Offsystem And Other Inventive$19.7M3%
Other Customer Revenue$4.6M1%

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