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Kaiser Aluminum vs Quanex Building Products: revenue, profit, margins and growth compared

Kaiser Aluminum brought in $3.4B of revenue in fiscal 2025, Quanex Building Products $1.8B in fiscal 2025. Revenue changed by +11.5% at Kaiser Aluminum and +43.8% at Quanex Building Products on the year before, so Quanex Building Products grew faster. Kaiser Aluminum kept 3.3% of its revenue as net profit, Quanex Building Products -13.6%. Free cash flow was -$25.5M at Kaiser Aluminum and $102.3M at Quanex Building Products.

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Side by side, latest fiscal year

KALUNX
Fiscal year endedFY2025 (December 31, 2025)FY2025 (October 31, 2025)
Revenue$3.4B$1.8B
Revenue growth+11.5%+43.8%
Net income$112.5M-$250.8M
Net margin3.3%-13.6%
Free cash flow-$25.5M$102.3M
Free cash flow margin-0.8%5.6%
Earnings per share (diluted)$6.77-$5.43
Cash$7M$76M
Debt$1.1B$692.8M
Price to earnings22.5n/a
Market value$2.5B$906.6M
Dividend yield2.02%1.62%
Rank by revenue in sector#165 of 451 · Industrials#224 of 451 · Industrials

Over the years

Revenue
KALU FY2018: $1.6BKALU FY2019: $1.5BKALU FY2020: $1.2BKALU FY2021: $2.6BKALU FY2022: $3.4BKALU FY2023: $3.1BKALU FY2024: $3BKALU FY2025: $3.4BNX FY2018: $889.8MNX FY2019: $893.8MNX FY2020: $851.6MNX FY2021: $1.1BNX FY2022: $1.2BNX FY2023: $1.1BNX FY2024: $1.3BNX FY2025: $1.8BFY18FY19FY20FY21FY22FY23FY24FY25
KALU $3.4BNX $1.8B
Net income
KALU FY2018: $91.7MKALU FY2019: $62MKALU FY2020: $28.8MKALU FY2021: -$18.5MKALU FY2022: -$29.6MKALU FY2023: $67.8MKALU FY2024: $65.7MKALU FY2025: $112.5MNX FY2018: $26.6MNX FY2019: -$46.7MNX FY2020: $38.5MNX FY2021: $57MNX FY2022: $88.3MNX FY2023: $82.5MNX FY2024: $33.1MNX FY2025: -$250.8MFY18FY19FY20FY21FY22FY23FY24FY25
KALU $112.5MNX -$250.8M
Net margin
KALU FY2018: 5.8%KALU FY2019: 4.1%KALU FY2020: 2.5%KALU FY2021: -0.7%KALU FY2022: -0.9%KALU FY2023: 2.2%KALU FY2024: 2.2%KALU FY2025: 3.3%NX FY2018: 3.0%NX FY2019: -5.2%NX FY2020: 4.5%NX FY2021: 5.3%NX FY2022: 7.2%NX FY2023: 7.3%NX FY2024: 2.6%NX FY2025: -13.6%FY18FY19FY20FY21FY22FY23FY24FY25
KALU 3.3%NX -13.6%
Revenue growth
KALU FY2019: -4.5%KALU FY2020: -22.5%KALU FY2021: +123.6%KALU FY2022: +30.7%KALU FY2023: -9.9%KALU FY2024: -2.0%KALU FY2025: +11.5%NX FY2019: +0.5%NX FY2020: -4.7%NX FY2021: +25.9%NX FY2022: +13.9%NX FY2023: -7.4%NX FY2024: +13.0%NX FY2025: +43.8%FY19FY20FY21FY22FY23FY24FY25
KALU +11.5%NX +43.8%
Free cash flow
KALU FY2018: $76.1MKALU FY2019: $172.1MKALU FY2020: $155MKALU FY2021: $21.4MKALU FY2022: -$205.6MKALU FY2023: $68.7MKALU FY2024: -$13.7MKALU FY2025: -$25.5MNX FY2018: $78.1MNX FY2019: $71.5MNX FY2020: $75.1MNX FY2021: $54.6MNX FY2022: $64.8MNX FY2023: $109.7MNX FY2024: $51.7MNX FY2025: $102.3MFY18FY19FY20FY21FY22FY23FY24FY25
KALU -$25.5MNX $102.3M

Fiscal years as each company reports them; the two may end in different months.

Questions about Kaiser Aluminum and Quanex Building Products

Which is bigger by revenue, Kaiser Aluminum or Quanex Building Products?

Kaiser Aluminum is bigger by revenue: $3.4B in fiscal 2025, against $1.8B for Quanex Building Products in fiscal 2025.

Which keeps more of its revenue as profit, Kaiser Aluminum or Quanex Building Products?

Kaiser Aluminum had a net margin of 3.3% in fiscal 2025; Quanex Building Products had -13.6% in fiscal 2025.

Which grew revenue faster, Kaiser Aluminum or Quanex Building Products?

In their latest fiscal years revenue changed by +11.5% at Kaiser Aluminum and +43.8% at Quanex Building Products.

Where do these numbers come from?

From the annual reports each company files with the SEC (10-K, or 20-F and 40-F for foreign companies), read from their XBRL data. Margins and growth are simple arithmetic on those figures. Nothing here is a recommendation.

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