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Side-by-side financial comparison of Southern Company (SO) and Steel Dynamics (STLD). Click either name above to swap in a different company.

Southern Company is the larger business by last-quarter revenue ($7.0B vs $5.2B, roughly 1.3× Steel Dynamics). Steel Dynamics runs the higher net margin — 7.7% vs 4.9%, a 2.8% gap on every dollar of revenue. On growth, Steel Dynamics posted the faster year-over-year revenue change (17.9% vs 10.1%). Over the past eight quarters, Steel Dynamics's revenue compounded faster (6.0% CAGR vs 2.5%).

Southern Company is an American gas and electric utility holding company based in the Southern United States. It is headquartered in Atlanta, Georgia, with executive offices located in Birmingham, Alabama. As of 2021 it is the second largest utility company in the U.S. in terms of customer base. Through its subsidiaries it serves 9 million gas and electric utility customers in 6 states. Southern Company's regulated regional electric utilities serve a 120,000-square-mile (310,000 km2) territor...

Steel Dynamics, Inc. (SDI) is an American steel producer based in Fort Wayne, Indiana. With a production capacity of 13 million tons of steel, the company is the third largest producer of carbon steel products in the United States. It is among the most profitable American steel companies in terms of profit margins and operating margin per ton. Based on its 2021 revenue, the company ranked 196th on the 2022 edition of the Fortune 500.

SO vs STLD — Head-to-Head

Bigger by revenue
SO
SO
1.3× larger
SO
$7.0B
$5.2B
STLD
Growing faster (revenue YoY)
STLD
STLD
+7.8% gap
STLD
17.9%
10.1%
SO
Higher net margin
STLD
STLD
2.8% more per $
STLD
7.7%
4.9%
SO
Faster 2-yr revenue CAGR
STLD
STLD
Annualised
STLD
6.0%
2.5%
SO

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
SO
SO
STLD
STLD
Revenue
$7.0B
$5.2B
Net Profit
$341.0M
$400.1M
Gross Margin
14.7%
Operating Margin
13.1%
10.3%
Net Margin
4.9%
7.7%
Revenue YoY
10.1%
17.9%
Net Profit YoY
-26.8%
51.3%
EPS (diluted)
$0.38
$2.78

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
SO
SO
STLD
STLD
Q1 26
$5.2B
Q4 25
$7.0B
$4.4B
Q3 25
$7.8B
$4.8B
Q2 25
$7.0B
$4.6B
Q1 25
$7.8B
$4.4B
Q4 24
$6.3B
$3.9B
Q3 24
$7.3B
$4.3B
Q2 24
$6.5B
$4.6B
Net Profit
SO
SO
STLD
STLD
Q1 26
$400.1M
Q4 25
$341.0M
$266.0M
Q3 25
$1.7B
$403.7M
Q2 25
$880.0M
$298.7M
Q1 25
$1.3B
$217.2M
Q4 24
$466.0M
$207.3M
Q3 24
$1.5B
$317.8M
Q2 24
$1.2B
$428.0M
Gross Margin
SO
SO
STLD
STLD
Q1 26
14.7%
Q4 25
12.0%
Q3 25
15.7%
Q2 25
13.5%
Q1 25
11.1%
Q4 24
11.4%
Q3 24
13.9%
Q2 24
16.7%
Operating Margin
SO
SO
STLD
STLD
Q1 26
10.3%
Q4 25
13.1%
7.0%
Q3 25
33.2%
10.5%
Q2 25
25.3%
8.4%
Q1 25
25.9%
6.3%
Q4 24
16.7%
6.1%
Q3 24
32.6%
9.1%
Q2 24
30.0%
12.1%
Net Margin
SO
SO
STLD
STLD
Q1 26
7.7%
Q4 25
4.9%
6.0%
Q3 25
21.9%
8.4%
Q2 25
12.6%
6.5%
Q1 25
16.3%
5.0%
Q4 24
7.3%
5.4%
Q3 24
21.1%
7.3%
Q2 24
18.6%
9.2%
EPS (diluted)
SO
SO
STLD
STLD
Q1 26
$2.78
Q4 25
$0.38
$1.80
Q3 25
$1.54
$2.74
Q2 25
$0.79
$2.01
Q1 25
$1.21
$1.44
Q4 24
$0.48
$1.40
Q3 24
$1.39
$2.05
Q2 24
$1.09
$2.72

Balance Sheet & Financial Strength

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

Metric
SO
SO
STLD
STLD
Cash + ST InvestmentsLiquidity on hand
$1.6B
$556.5M
Total DebtLower is stronger
$65.6B
$4.2B
Stockholders' EquityBook value
$36.0B
$9.0B
Total Assets
$155.7B
$16.7B
Debt / EquityLower = less leverage
1.82×
0.47×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
SO
SO
STLD
STLD
Q1 26
$556.5M
Q4 25
$1.6B
$769.9M
Q3 25
$3.3B
$770.4M
Q2 25
$1.3B
$497.6M
Q1 25
$2.3B
$1.2B
Q4 24
$1.1B
$737.3M
Q3 24
$1.0B
$1.7B
Q2 24
$1.2B
$1.2B
Total Debt
SO
SO
STLD
STLD
Q1 26
$4.2B
Q4 25
$65.6B
$4.2B
Q3 25
$64.6B
$3.8B
Q2 25
$63.0B
$3.8B
Q1 25
$62.9B
$4.2B
Q4 24
$58.8B
$3.2B
Q3 24
$61.3B
$3.7B
Q2 24
$59.9B
$3.1B
Stockholders' Equity
SO
SO
STLD
STLD
Q1 26
$9.0B
Q4 25
$36.0B
$9.0B
Q3 25
$38.3B
$9.0B
Q2 25
$37.3B
$8.9B
Q1 25
$37.2B
$8.8B
Q4 24
$33.2B
$8.9B
Q3 24
$36.9B
$9.1B
Q2 24
$36.1B
$9.1B
Total Assets
SO
SO
STLD
STLD
Q1 26
$16.7B
Q4 25
$155.7B
$16.4B
Q3 25
$153.2B
$16.0B
Q2 25
$148.9B
$15.5B
Q1 25
$148.1B
$15.9B
Q4 24
$145.2B
$14.9B
Q3 24
$144.0B
$15.7B
Q2 24
$141.9B
$15.1B
Debt / Equity
SO
SO
STLD
STLD
Q1 26
0.47×
Q4 25
1.82×
0.47×
Q3 25
1.69×
0.42×
Q2 25
1.69×
0.43×
Q1 25
1.69×
0.48×
Q4 24
1.77×
0.36×
Q3 24
1.66×
0.41×
Q2 24
1.66×
0.34×

Cash Flow & Capital Efficiency

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

Metric
SO
SO
STLD
STLD
Operating Cash FlowLast quarter
$2.6B
$148.3M
Free Cash FlowOCF − Capex
$-1.7B
FCF MarginFCF / Revenue
-24.2%
Capex IntensityCapex / Revenue
61.4%
Cash ConversionOCF / Net Profit
7.62×
0.37×
TTM Free Cash FlowTrailing 4 quarters
$-2.9B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
SO
SO
STLD
STLD
Q1 26
$148.3M
Q4 25
$2.6B
$272.7M
Q3 25
$3.8B
$722.6M
Q2 25
$2.2B
$301.6M
Q1 25
$1.3B
$152.6M
Q4 24
$2.2B
$346.9M
Q3 24
$3.6B
$759.9M
Q2 24
$2.7B
$382.6M
Free Cash Flow
SO
SO
STLD
STLD
Q1 26
Q4 25
$-1.7B
$84.2M
Q3 25
$559.0M
$556.9M
Q2 25
$-619.0M
$13.3M
Q1 25
$-1.2B
$-152.9M
Q4 24
$-576.0M
$-106.3M
Q3 24
$1.3B
$138.5M
Q2 24
$563.0M
$-36.6M
FCF Margin
SO
SO
STLD
STLD
Q1 26
Q4 25
-24.2%
1.9%
Q3 25
7.1%
11.5%
Q2 25
-8.9%
0.3%
Q1 25
-15.3%
-3.5%
Q4 24
-9.1%
-2.7%
Q3 24
17.9%
3.2%
Q2 24
8.7%
-0.8%
Capex Intensity
SO
SO
STLD
STLD
Q1 26
Q4 25
61.4%
4.3%
Q3 25
41.1%
3.4%
Q2 25
40.2%
6.3%
Q1 25
31.3%
7.0%
Q4 24
43.4%
11.7%
Q3 24
31.8%
14.3%
Q2 24
32.9%
9.0%
Cash Conversion
SO
SO
STLD
STLD
Q1 26
0.37×
Q4 25
7.62×
1.03×
Q3 25
2.21×
1.79×
Q2 25
2.48×
1.01×
Q1 25
0.98×
0.70×
Q4 24
4.66×
1.67×
Q3 24
2.36×
2.39×
Q2 24
2.23×
0.89×

Financial Flow Comparison

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

Revenue Breakdown by Segment

SO
SO

Other$3.9B57%
Retail Electric Commercial$1.6B23%
Natural Gas Distribution Residential$689.0M10%
Natural Gas Distribution Transportation$371.0M5%
Wholesale Non Affiliates$123.0M2%
Natural Gas Distribution Other$76.0M1%
Wholesale Electric Non PPA Revenues$62.0M1%
Wholesale Affiliates$55.0M1%
Retail Electric Other$31.0M0%
Alternative Energy$20.0M0%
Natural Gas Distribution Industrial$15.0M0%

STLD
STLD

Steel$3.5B68%
Metals Recycling$593.2M11%
Other$490.1M9%
Steel Fabrication$355.4M7%
Aluminum$227.4M4%

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