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Side-by-side financial comparison of AAON, INC. (AAON) and SL GREEN REALTY CORP (SLG). Click either name above to swap in a different company.

AAON, INC. is the larger business by last-quarter revenue ($424.2M vs $276.5M, roughly 1.5× SL GREEN REALTY CORP). AAON, INC. runs the higher net margin — 7.6% vs -36.5%, a 44.0% gap on every dollar of revenue. On growth, AAON, INC. posted the faster year-over-year revenue change (42.5% vs 12.4%). Over the past eight quarters, AAON, INC.'s revenue compounded faster (27.2% CAGR vs 21.3%).

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.

SL Green Realty Corp. is a real estate investment trust that primarily invests in office buildings and shopping centers in New York City. As of December 31, 2024, the company owned interests in 39 properties comprising 25,297,353 square feet, primarily in Manhattan. It has been referred to as "New York City’s largest office landlord".

AAON vs SLG — Head-to-Head

Bigger by revenue
AAON
AAON
1.5× larger
AAON
$424.2M
$276.5M
SLG
Growing faster (revenue YoY)
AAON
AAON
+30.0% gap
AAON
42.5%
12.4%
SLG
Higher net margin
AAON
AAON
44.0% more per $
AAON
7.6%
-36.5%
SLG
Faster 2-yr revenue CAGR
AAON
AAON
Annualised
AAON
27.2%
21.3%
SLG

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AAON
AAON
SLG
SLG
Revenue
$424.2M
$276.5M
Net Profit
$32.0M
$-100.8M
Gross Margin
25.9%
Operating Margin
10.4%
64.2%
Net Margin
7.6%
-36.5%
Revenue YoY
42.5%
12.4%
Net Profit YoY
29.7%
-870.0%
EPS (diluted)
$0.38
$-1.49

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
SLG
SLG
Q4 25
$424.2M
$276.5M
Q3 25
$384.2M
$244.8M
Q2 25
$311.6M
$241.9M
Q1 25
$322.1M
$239.8M
Q4 24
$297.7M
$245.9M
Q3 24
$327.3M
$229.7M
Q2 24
$313.6M
$222.8M
Q1 24
$262.1M
$187.9M
Net Profit
AAON
AAON
SLG
SLG
Q4 25
$32.0M
$-100.8M
Q3 25
$30.8M
$28.6M
Q2 25
$15.5M
$-7.4M
Q1 25
$29.3M
$-17.3M
Q4 24
$24.7M
$19.1M
Q3 24
$52.6M
$-9.5M
Q2 24
$52.2M
$1.6M
Q1 24
$39.0M
$16.9M
Gross Margin
AAON
AAON
SLG
SLG
Q4 25
25.9%
Q3 25
27.8%
Q2 25
26.6%
Q1 25
26.8%
Q4 24
26.1%
Q3 24
34.9%
Q2 24
36.1%
Q1 24
35.2%
Operating Margin
AAON
AAON
SLG
SLG
Q4 25
10.4%
64.2%
Q3 25
11.3%
85.5%
Q2 25
7.6%
53.4%
Q1 25
10.9%
56.7%
Q4 24
9.9%
59.8%
Q3 24
20.0%
65.1%
Q2 24
21.4%
79.2%
Q1 24
17.9%
Net Margin
AAON
AAON
SLG
SLG
Q4 25
7.6%
-36.5%
Q3 25
8.0%
11.7%
Q2 25
5.0%
-3.0%
Q1 25
9.1%
-7.2%
Q4 24
8.3%
7.8%
Q3 24
16.1%
-4.2%
Q2 24
16.7%
0.7%
Q1 24
14.9%
9.0%
EPS (diluted)
AAON
AAON
SLG
SLG
Q4 25
$0.38
$-1.49
Q3 25
$0.37
$0.34
Q2 25
$0.19
$-0.16
Q1 25
$0.35
$-0.30
Q4 24
$0.31
$0.13
Q3 24
$0.63
$-0.21
Q2 24
$0.62
$-0.04
Q1 24
$0.46
$0.20

Balance Sheet & Financial Strength

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

Metric
AAON
AAON
SLG
SLG
Cash + ST InvestmentsLiquidity on hand
$13.0K
$155.7M
Total DebtLower is stronger
Stockholders' EquityBook value
$895.0M
$3.7B
Total Assets
$1.7B
$11.1B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AAON
AAON
SLG
SLG
Q4 25
$13.0K
$155.7M
Q3 25
$1.0M
$187.0M
Q2 25
$14.0K
$182.9M
Q1 25
$994.0K
$180.1M
Q4 24
$14.0K
$184.3M
Q3 24
$15.0K
$188.2M
Q2 24
$13.0K
$199.5M
Q1 24
$8.4M
$196.0M
Stockholders' Equity
AAON
AAON
SLG
SLG
Q4 25
$895.0M
$3.7B
Q3 25
$863.1M
$3.8B
Q2 25
$832.7M
$3.8B
Q1 25
$815.9M
$3.8B
Q4 24
$824.6M
$4.0B
Q3 24
$796.9M
$3.6B
Q2 24
$740.5M
$3.7B
Q1 24
$784.8M
$3.7B
Total Assets
AAON
AAON
SLG
SLG
Q4 25
$1.7B
$11.1B
Q3 25
$1.5B
$11.1B
Q2 25
$1.4B
$11.3B
Q1 25
$1.3B
$11.4B
Q4 24
$1.2B
$10.5B
Q3 24
$1.0B
$10.2B
Q2 24
$1.0B
$9.5B
Q1 24
$952.9M
$9.8B

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
SLG
SLG
Operating Cash FlowLast quarter
$19.3M
$82.9M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
0.60×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AAON
AAON
SLG
SLG
Q4 25
$19.3M
$82.9M
Q3 25
$12.3M
$-6.8M
Q2 25
$-21.8M
$54.5M
Q1 25
$-9.2M
$6.7M
Q4 24
$845.0K
$129.6M
Q3 24
$63.8M
$16.7M
Q2 24
$35.5M
$79.4M
Q1 24
$92.4M
$-24.7M
Cash Conversion
AAON
AAON
SLG
SLG
Q4 25
0.60×
Q3 25
0.40×
-0.24×
Q2 25
-1.41×
Q1 25
-0.31×
Q4 24
0.03×
6.77×
Q3 24
1.21×
Q2 24
0.68×
50.33×
Q1 24
2.37×
-1.46×

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%

SLG
SLG

Real Estate Segment$223.1M81%
Other$35.9M13%
Debt And Preferred Equity Segment$17.4M6%

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