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Side-by-side financial comparison of CENTURY ALUMINUM CO (CENX) and Custom Truck One Source, Inc. (CTOS). Click either name above to swap in a different company.

CENTURY ALUMINUM CO is the larger business by last-quarter revenue ($633.7M vs $422.2M, roughly 1.5× Custom Truck One Source, Inc.). CENTURY ALUMINUM CO runs the higher net margin — 0.3% vs -4.2%, a 4.5% gap on every dollar of revenue. On growth, CENTURY ALUMINUM CO posted the faster year-over-year revenue change (0.4% vs -8.5%). Over the past eight quarters, Custom Truck One Source, Inc.'s revenue compounded faster (14.8% CAGR vs 13.8%).

Century Aluminum Company is a US-based producer of primary aluminum, with aluminum plants in Kentucky, South Carolina and Iceland. It is the largest producer of primary aluminum in the United States. The company is a publicly held corporation listed on the NASDAQ. The headquarters is at One South Wacker in Chicago.

Custom Truck One Source, Inc. is a leading provider of specialized heavy truck and equipment solutions in North America. It offers custom vehicle manufacturing, equipment sales and rentals, aftermarket parts, and maintenance services, serving core infrastructure, utility, construction, and energy industry segments.

CENX vs CTOS — Head-to-Head

Bigger by revenue
CENX
CENX
1.5× larger
CENX
$633.7M
$422.2M
CTOS
Growing faster (revenue YoY)
CENX
CENX
+9.0% gap
CENX
0.4%
-8.5%
CTOS
Higher net margin
CENX
CENX
4.5% more per $
CENX
0.3%
-4.2%
CTOS
Faster 2-yr revenue CAGR
CTOS
CTOS
Annualised
CTOS
14.8%
13.8%
CENX

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
CENX
CENX
CTOS
CTOS
Revenue
$633.7M
$422.2M
Net Profit
$1.8M
$-17.8M
Gross Margin
13.0%
20.3%
Operating Margin
5.2%
2.9%
Net Margin
0.3%
-4.2%
Revenue YoY
0.4%
-8.5%
Net Profit YoY
-96.0%
-333.7%
EPS (diluted)
$0.03
$-0.08

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
CENX
CENX
CTOS
CTOS
Q1 26
$422.2M
Q4 25
$633.7M
$387.3M
Q3 25
$632.2M
$359.9M
Q2 25
$628.1M
$392.2M
Q1 25
$633.9M
$307.1M
Q4 24
$630.9M
$398.3M
Q3 24
$539.1M
$337.5M
Q2 24
$560.8M
$320.6M
Net Profit
CENX
CENX
CTOS
CTOS
Q1 26
$-17.8M
Q4 25
$1.8M
$20.9M
Q3 25
$14.9M
$-5.8M
Q2 25
$-4.6M
$-28.4M
Q1 25
$29.7M
$-17.8M
Q4 24
$45.2M
$27.6M
Q3 24
$47.3M
$-17.4M
Q2 24
$-2.5M
$-24.5M
Gross Margin
CENX
CENX
CTOS
CTOS
Q1 26
20.3%
Q4 25
13.0%
31.8%
Q3 25
12.2%
28.0%
Q2 25
5.8%
26.1%
Q1 25
9.6%
27.9%
Q4 24
10.5%
29.7%
Q3 24
15.2%
27.2%
Q2 24
3.6%
27.8%
Operating Margin
CENX
CENX
CTOS
CTOS
Q1 26
2.9%
Q4 25
5.2%
13.4%
Q3 25
9.2%
9.1%
Q2 25
3.3%
7.1%
Q1 25
7.3%
4.0%
Q4 24
7.8%
16.9%
Q3 24
11.8%
6.8%
Q2 24
1.1%
5.5%
Net Margin
CENX
CENX
CTOS
CTOS
Q1 26
-4.2%
Q4 25
0.3%
5.4%
Q3 25
2.4%
-1.6%
Q2 25
-0.7%
-7.2%
Q1 25
4.7%
-5.8%
Q4 24
7.2%
6.9%
Q3 24
8.8%
-5.2%
Q2 24
-0.4%
-7.6%
EPS (diluted)
CENX
CENX
CTOS
CTOS
Q1 26
$-0.08
Q4 25
$0.03
$0.10
Q3 25
$0.15
$-0.03
Q2 25
$-0.05
$-0.13
Q1 25
$0.29
$-0.08
Q4 24
$0.58
$0.11
Q3 24
$0.46
$-0.07
Q2 24
$-0.03
$-0.10

Balance Sheet & Financial Strength

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

Metric
CENX
CENX
CTOS
CTOS
Cash + ST InvestmentsLiquidity on hand
$134.2M
$6.3M
Total DebtLower is stronger
$25.9M
Stockholders' EquityBook value
$805.6M
$809.1M
Total Assets
$2.3B
$3.4B
Debt / EquityLower = less leverage
0.03×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CENX
CENX
CTOS
CTOS
Q1 26
$6.3M
Q4 25
$134.2M
$6.3M
Q3 25
$151.4M
$13.1M
Q2 25
$40.7M
$5.3M
Q1 25
$44.9M
$5.4M
Q4 24
$32.9M
$3.8M
Q3 24
$8.4M
Q2 24
$41.3M
$8.1M
Total Debt
CENX
CENX
CTOS
CTOS
Q1 26
$25.9M
Q4 25
$1.6B
Q3 25
$1.6B
Q2 25
$1.6B
Q1 25
$1.6B
Q4 24
$1.5B
Q3 24
$1.6B
Q2 24
$1.5B
Stockholders' Equity
CENX
CENX
CTOS
CTOS
Q1 26
$809.1M
Q4 25
$805.6M
$809.1M
Q3 25
$741.8M
$784.7M
Q2 25
$724.4M
$790.1M
Q1 25
$726.3M
$813.4M
Q4 24
$694.4M
$861.3M
Q3 24
$628.5M
$837.5M
Q2 24
$601.5M
$856.7M
Total Assets
CENX
CENX
CTOS
CTOS
Q1 26
$3.4B
Q4 25
$2.3B
$3.4B
Q3 25
$2.1B
$3.5B
Q2 25
$1.9B
$3.6B
Q1 25
$2.0B
$3.5B
Q4 24
$1.9B
$3.5B
Q3 24
$2.1B
$3.6B
Q2 24
$1.8B
$3.5B
Debt / Equity
CENX
CENX
CTOS
CTOS
Q1 26
0.03×
Q4 25
2.03×
Q3 25
2.10×
Q2 25
2.04×
Q1 25
1.97×
Q4 24
1.77×
Q3 24
1.87×
Q2 24
1.79×

Cash Flow & Capital Efficiency

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

Metric
CENX
CENX
CTOS
CTOS
Operating Cash FlowLast quarter
$102.8M
Free Cash FlowOCF − Capex
$67.7M
FCF MarginFCF / Revenue
10.7%
Capex IntensityCapex / Revenue
5.5%
Cash ConversionOCF / Net Profit
57.11×
TTM Free Cash FlowTrailing 4 quarters
$84.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CENX
CENX
CTOS
CTOS
Q1 26
Q4 25
$102.8M
$47.3M
Q3 25
$2.0M
$81.5M
Q2 25
$7.9M
$125.7M
Q1 25
$72.3M
$55.6M
Q4 24
$-41.4M
$82.1M
Q3 24
$20.1M
$16.5M
Q2 24
$11.5M
$37.8M
Free Cash Flow
CENX
CENX
CTOS
CTOS
Q1 26
Q4 25
$67.7M
Q3 25
$-18.1M
Q2 25
$-15.9M
Q1 25
$51.1M
Q4 24
$-54.6M
Q3 24
$-2.4M
Q2 24
$-5.4M
FCF Margin
CENX
CENX
CTOS
CTOS
Q1 26
Q4 25
10.7%
Q3 25
-2.9%
Q2 25
-2.5%
Q1 25
8.1%
Q4 24
-8.7%
Q3 24
-0.4%
Q2 24
-1.0%
Capex Intensity
CENX
CENX
CTOS
CTOS
Q1 26
Q4 25
5.5%
Q3 25
3.2%
Q2 25
3.8%
Q1 25
3.3%
Q4 24
2.1%
Q3 24
4.2%
Q2 24
3.0%
Cash Conversion
CENX
CENX
CTOS
CTOS
Q1 26
Q4 25
57.11×
2.27×
Q3 25
0.13×
Q2 25
Q1 25
2.43×
Q4 24
-0.92×
2.98×
Q3 24
0.42×
Q2 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

CENX
CENX

Aluminum$566.3M89%
Alumina$67.4M11%

CTOS
CTOS

Equipment sales$273.9M65%
Rental revenue$116.3M28%
Parts sales and services$32.1M8%

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