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Side-by-side financial comparison of A. O. Smith (AOS) and Delta Air Lines (DAL), based on the latest 10-Q / 10-K filings. Click either name above to swap in a different company.

Delta Air Lines is the larger business by last-quarter revenue ($16.0B vs $912.5M, roughly 17.5× A. O. Smith). On growth, Delta Air Lines posted the faster year-over-year revenue change (14.0% vs 0.0%). Over the past eight quarters, Delta Air Lines's revenue compounded faster (-2.0% CAGR vs -3.4%).

A. O. Smith Corporation is an American manufacturer of both residential and commercial water heaters and boilers, and the largest manufacturer and marketer of water heaters in North America. It also supplies water treatment and purification products in the Asian market. The company has 27 locations worldwide, including five manufacturing facilities in North America, as well as plants in Bengaluru in India, Nanjing in China and Veldhoven in The Netherlands.

Delta Air Lines, Inc. is a major airline in the United States headquartered in Atlanta, Georgia, operating nine hubs, with Hartsfield–Jackson Atlanta International Airport being its largest in terms of total passengers and number of departures. With its regional subsidiaries and contractors operating under the brand name Delta Connection, Delta has over 5,400 flights daily and serves 325 destinations in 52 countries on six continents.

AOS vs DAL — Head-to-Head

Bigger by revenue
DAL
DAL
17.5× larger
DAL
$16.0B
$912.5M
AOS
Growing faster (revenue YoY)
DAL
DAL
+14.0% gap
DAL
14.0%
0.0%
AOS
Faster 2-yr revenue CAGR
DAL
DAL
Annualised
DAL
-2.0%
-3.4%
AOS

Income Statement — Q4 2025 vs Q1 2026

Metric
AOS
AOS
DAL
DAL
Revenue
$912.5M
$16.0B
Net Profit
$125.4M
Gross Margin
38.4%
Operating Margin
17.9%
9.2%
Net Margin
13.7%
Revenue YoY
0.0%
14.0%
Net Profit YoY
14.3%
EPS (diluted)
$0.89
$1.85

Green = leading value per metric. Periods may differ when fiscal calendars don't align — see 8-quarter trend below.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history — bar widths are scaled to the larger of the two companies so you can eyeball the size gap and growth trajectory without doing math. Quarters aligned by calendar period (report date) so offset fiscal years line up.

Revenue
AOS
AOS
DAL
DAL
Q1 26
$16.0B
Q4 25
$912.5M
$16.0B
Q3 25
$942.5M
$16.7B
Q2 25
$1.0B
$16.6B
Q1 25
$963.9M
$14.0B
Q4 24
$912.4M
$15.6B
Q3 24
$902.6M
$15.7B
Q2 24
$1.0B
$16.7B
Net Profit
AOS
AOS
DAL
DAL
Q1 26
Q4 25
$125.4M
$1.2B
Q3 25
$132.0M
$1.4B
Q2 25
$152.2M
$2.1B
Q1 25
$136.6M
$240.0M
Q4 24
$109.7M
$843.0M
Q3 24
$120.1M
$1.3B
Q2 24
$156.2M
$1.3B
Gross Margin
AOS
AOS
DAL
DAL
Q1 26
Q4 25
38.4%
Q3 25
38.7%
Q2 25
39.3%
Q1 25
38.9%
Q4 24
37.1%
Q3 24
37.4%
Q2 24
38.7%
Operating Margin
AOS
AOS
DAL
DAL
Q1 26
9.2%
Q4 25
17.9%
9.2%
Q3 25
18.6%
10.1%
Q2 25
20.4%
12.6%
Q1 25
19.1%
4.1%
Q4 24
10.1%
11.0%
Q3 24
19.5%
8.9%
Q2 24
21.9%
13.6%
Net Margin
AOS
AOS
DAL
DAL
Q1 26
Q4 25
13.7%
7.6%
Q3 25
14.0%
8.5%
Q2 25
15.0%
12.8%
Q1 25
14.2%
1.7%
Q4 24
12.0%
5.4%
Q3 24
13.3%
8.1%
Q2 24
15.2%
7.8%
EPS (diluted)
AOS
AOS
DAL
DAL
Q1 26
$1.85
Q4 25
$0.89
$1.85
Q3 25
$0.94
$2.17
Q2 25
$1.07
$3.27
Q1 25
$0.95
$0.37
Q4 24
$0.75
$1.29
Q3 24
$0.82
$1.97
Q2 24
$1.06
$2.01

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest filing — the kind of financial-strength check premium terminals charge for.

Metric
AOS
AOS
DAL
DAL
Cash + ST InvestmentsLiquidity on hand
$193.2M
$4.3B
Total DebtLower is stronger
$155.0M
$12.5B
Stockholders' EquityBook value
$1.9B
$20.9B
Total Assets
$3.1B
$81.3B
Debt / EquityLower = less leverage
0.08×
0.60×

8-quarter trend — quarters aligned by calendar period so offset fiscal years match up.

Cash + ST Investments
AOS
AOS
DAL
DAL
Q1 26
$4.3B
Q4 25
$193.2M
$4.3B
Q3 25
$172.8M
$3.8B
Q2 25
$177.9M
$3.3B
Q1 25
$200.2M
$3.7B
Q4 24
$276.1M
$3.1B
Q3 24
$255.6M
$4.0B
Q2 24
$233.3M
$4.2B
Total Debt
AOS
AOS
DAL
DAL
Q1 26
$12.5B
Q4 25
$155.0M
$12.5B
Q3 25
$12.8B
Q2 25
$12.8B
Q1 25
$12.9B
Q4 24
$193.2M
$14.0B
Q3 24
$14.4B
Q2 24
$15.0B
Stockholders' Equity
AOS
AOS
DAL
DAL
Q1 26
$20.9B
Q4 25
$1.9B
$20.9B
Q3 25
$1.8B
$18.8B
Q2 25
$1.8B
$17.4B
Q1 25
$1.9B
$15.4B
Q4 24
$1.9B
$15.3B
Q3 24
$1.9B
$13.6B
Q2 24
$1.9B
$12.4B
Total Assets
AOS
AOS
DAL
DAL
Q1 26
$81.3B
Q4 25
$3.1B
$81.3B
Q3 25
$3.2B
$79.6B
Q2 25
$3.2B
$78.4B
Q1 25
$3.3B
$77.3B
Q4 24
$3.2B
$75.4B
Q3 24
$3.2B
$75.4B
Q2 24
$3.2B
$75.2B
Debt / Equity
AOS
AOS
DAL
DAL
Q1 26
0.60×
Q4 25
0.08×
0.60×
Q3 25
0.68×
Q2 25
0.74×
Q1 25
0.83×
Q4 24
0.10×
0.92×
Q3 24
1.05×
Q2 24
1.21×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Net income can be massaged; cash flow is harder to fake.

Metric
AOS
AOS
DAL
DAL
Operating Cash FlowLast quarter
$183.1M
Free Cash FlowOCF − Capex
$165.5M
FCF MarginFCF / Revenue
18.1%
Capex IntensityCapex / Revenue; lower = less reinvestment burden
1.9%
Cash ConversionOCF / Net Profit; >1× = earnings back up with cash
1.46×
TTM Free Cash FlowTrailing 4 quarters
$546.0M

8-quarter trend — quarters aligned by calendar period so offset fiscal years match up.

Operating Cash Flow
AOS
AOS
DAL
DAL
Q1 26
Q4 25
$183.1M
$2.3B
Q3 25
$255.4M
$1.8B
Q2 25
$139.6M
$1.9B
Q1 25
$38.7M
$2.4B
Q4 24
$221.9M
$1.9B
Q3 24
$195.9M
$1.3B
Q2 24
$57.4M
$2.4B
Free Cash Flow
AOS
AOS
DAL
DAL
Q1 26
Q4 25
$165.5M
$1.4B
Q3 25
$240.6M
$687.0M
Q2 25
$122.5M
$648.0M
Q1 25
$17.4M
$1.2B
Q4 24
$191.3M
$583.0M
Q3 24
$163.4M
$-54.0M
Q2 24
$34.5M
$1.1B
FCF Margin
AOS
AOS
DAL
DAL
Q1 26
Q4 25
18.1%
8.5%
Q3 25
25.5%
4.1%
Q2 25
12.1%
3.9%
Q1 25
1.8%
8.2%
Q4 24
21.0%
3.7%
Q3 24
18.1%
-0.3%
Q2 24
3.4%
6.8%
Capex Intensity
AOS
AOS
DAL
DAL
Q1 26
Q4 25
1.9%
5.7%
Q3 25
1.6%
7.0%
Q2 25
1.7%
7.3%
Q1 25
2.2%
8.7%
Q4 24
3.4%
8.4%
Q3 24
3.6%
8.5%
Q2 24
2.2%
7.9%
Cash Conversion
AOS
AOS
DAL
DAL
Q1 26
Q4 25
1.46×
1.86×
Q3 25
1.93×
1.30×
Q2 25
0.92×
0.87×
Q1 25
0.28×
9.91×
Q4 24
2.02×
2.25×
Q3 24
1.63×
1.00×
Q2 24
0.37×
1.88×

Financial Flow Comparison

Sankey diagram of revenue → gross profit → operating profit → net profit for each company. Charts shown full-width and stacked so both segment hierarchies are readable side-by-side on desktop and mobile.

Revenue Breakdown by Segment

AOS
AOS

North America Segment$713.7M78%
Rest Of World$158.3M17%
Other$40.5M4%

DAL
DAL

Passenger Air Traffic$10.8B67%
Product And Service Other Refinery$1.7B10%
Product And Service Other Loyalty Program$1.2B8%
Passenger Loyalty Travel Awards$1.0B6%
Passenger Travel Related Services$506.0M3%
Product And Service Other Ancillary Businesses$380.0M2%
Cargo And Freight$226.0M1%
Product And Service Other Miscellaneous$71.0M0%

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