Market capitalization is the total value the stock market puts on a company: its share price multiplied by the number of shares outstanding. Each point here is the share count reported in a filing multiplied by the closing price on that filing date, adjusted for later stock splits, so the history moves when a new filing arrives rather than with each day's trading. A larger market cap means investors collectively value the company more highly; by itself it says nothing about profit or debt. Annual points keep the latest observation in each calendar year.
ARMSTRONG WORLD INDUSTRIES INC market cap for the quarter ending 2026-07-23 was $6.69B, a 7.78% decline year-over-year.
ARMSTRONG WORLD INDUSTRIES INC market cap for the quarter ending 2026-06-30 was $6.79B, a 3.60% decline year-over-year.
ARMSTRONG WORLD INDUSTRIES INC market cap for the quarter ending 2026-04-23 was $7.66B, a 27.42% increase year-over-year.
ARMSTRONG WORLD INDUSTRIES INC market cap for the quarter ending 2026-03-31 was $7.02B, a 14.78% increase year-over-year.
ARMSTRONG WORLD INDUSTRIES INC market cap for fiscal 2026 was $6.69B.
ARMSTRONG WORLD INDUSTRIES INC market cap for fiscal 2025 was $8.2B, a 33.17% increase from fiscal 2024.
ARMSTRONG WORLD INDUSTRIES INC market cap for fiscal 2024 was $6.16B, a 42.63% increase from fiscal 2023.
ARMSTRONG WORLD INDUSTRIES INC market cap for fiscal 2023 was $4.32B, a 38.09% increase from fiscal 2022.