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TTM Q1 '26TTM Q4 '25TTM Q3 '25TTM Q2 '25TTM Q1 '25
Revenue by Business
Architectural Specialties$605.2M+18.5%$590.1M+28.4%$575.9M+36.4%$553.3M+41.4%$510.6M+38.9%
Mineral Fiber$1.04B+5.2%$1.03B+4.5%$1.02B+5.8%$1.01B+5.1%$991.5M+5.1%
Gross Profit by Business
Architectural Specialties$233.2M+13.3%$232.7M+26.9%$231.7M+39.7%$224.7M+51.9%$205.8M+51.2%
Mineral Fiber$432.2M+7.2%$427.4M+6.9%$417.8M+5.1%$410.6M+9.3%$403M+11.1%
Unallocated Corporate-$1.3M+18.8%-$1.4M+12.5%-$1.4M+13.8%-$1.6M-3.2%-$1.6M+4.5%
Operating Income by Business
Architectural Specialties$66.7M+6.9%$72.2M+30.6%$73.9M+56.9%$73.8M+70.0%$62.4M+50.7%
Mineral Fiber$363M+10.7%$362M+12.2%$350.2M+11.2%$344.5M+12.1%$327.8M+8.9%
Unallocated Corporate-$3.1M+11.4%-$3.3M+5.7%-$3.3M-3.1%-$3.4M-9.7%-$3.5M-20.7%
Selling General And Administrative Expense by Business
Architectural Specialties$165.9M+16.7%$159.9M+26.1%$156.4M+36.5%$149.6M+41.8%$142.1M+45.5%
Mineral Fiber$183.5M+2.8%$179.1M-1.2%$180.5M+3.9%$175M+2.6%$178.5M+9.2%
Unallocated Corporate$1M0.0%$1M0.0%$1.1M+10.0%$900K-25.0%$1M-9.1%
Total Assets by Business
Architectural Specialties$2.52B+10.0%$2.42B+13.9%$2.41B+24.0%$2.34B+28.9%$2.29B+38.3%
Mineral Fiber$4.37B+1.0%$4.35B0.0%$4.32B-1.4%$4.32B-1.7%$4.33B-1.9%
Unallocated Corporate$771.8M+10.5%$764.3M+11.6%$724.6M+8.6%$706.3M$698.6M
Cost of Goods Sold by Business
Architectural Specialties$372M+22.0%$357.4M+29.4%$344.2M+35.0%$328.6M+39.8%$304.8M+36.9%
Mineral Fiber$610.6M+3.8%$603.3M+2.9%$606.5M+4.0%$597.7M+3.0%$588.5M+2.1%
Unallocated Corporate$1.3M-18.8%$1.4M-12.5%$1.4M-13.8%$1.6M+3.2%$1.6M-4.5%
Segment Expenditure Addition To Long Lived Assets by Business
Architectural Specialties$21.8M+9.5%$22.5M+21.6%$19.7M+34.5%$19.1M+24.8%$19.9M+28.0%
Mineral Fiber$86.2M+28.1%$86.9M+35.1%$70.7M+17.2%$68.1M+11.3%$67.3M+8.5%
Depreciation And Amortization by Business
Architectural Specialties$32.9M+21.4%$33.7M+46.5%$31.8M+58.4%$29.7M+73.2%$27.1M+82.8%
Mineral Fiber$87.9M+8.4%$86.7M+8.1%$85.4M+9.3%$83.5M+8.1%$81.1M+6.2%
Income Loss From Equity Method Investments by Business
Mineral Fiber$113.8M+9.7%$113.2M+8.5%$112M+10.1%$109.3M+10.9%$103.7M+9.9%
Unallocated Corporate-$800K+11.1%-$900K0.0%-$800K-$900K-$900K
Investments In Affiliates Subsidiaries Associates And Joint Ventures by Business
Architectural Specialties$0$0$0
Mineral Fiber$101.3M$105.2M$104.9M
Unallocated Corporate$15.4M$16.2M$17.1M

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Questions, answered.

How does Armstrong World Industries break its business down?
Armstrong World Industries (AWI) reports revenue by business across 3 parts — Architectural Specialties, Mineral Fiber and Unallocated Corporate. Each is extracted from the segment footnotes and tracked over time.
Where does Armstrong World Industries's segment data come from?
Segment breakdowns are pulled from the segment footnotes in Armstrong World Industries's SEC filings (the XBRL dimensional tags), so every line ties back to a reported figure. Switch between quarterly, annual, and TTM, or open any segment for its full history.