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Side-by-side financial comparison of ARMSTRONG WORLD INDUSTRIES INC (AWI) and PLUG POWER INC (PLUG). Click either name above to swap in a different company.

ARMSTRONG WORLD INDUSTRIES INC is the larger business by last-quarter revenue ($388.3M vs $225.2M, roughly 1.7× PLUG POWER INC). ARMSTRONG WORLD INDUSTRIES INC runs the higher net margin — 16.9% vs -375.6%, a 392.5% gap on every dollar of revenue. On growth, PLUG POWER INC posted the faster year-over-year revenue change (17.6% vs 5.6%). ARMSTRONG WORLD INDUSTRIES INC produced more free cash flow last quarter ($62.2M vs $-153.0M). Over the past eight quarters, PLUG POWER INC's revenue compounded faster (36.8% CAGR vs 9.1%).

Armstrong World Industries, Inc. is an international designer and manufacturer of wall and ceiling building materials based in Lancaster, Pennsylvania. As of 2014, AWI had 3,100 employees and a global manufacturing network of 17 facilities, down from 26, including nine plants dedicated to its WAVE joint venture, in 2012.

Plug Power Inc. is an American company engaged in the development of hydrogen fuel cell and electrolyzer systems that replace conventional batteries in equipment and vehicles powered by electricity. The company is headquartered in Slingerlands, New York, and has facilities in Spokane, Washington, and Rochester, New York.

AWI vs PLUG — Head-to-Head

Bigger by revenue
AWI
AWI
1.7× larger
AWI
$388.3M
$225.2M
PLUG
Growing faster (revenue YoY)
PLUG
PLUG
+12.0% gap
PLUG
17.6%
5.6%
AWI
Higher net margin
AWI
AWI
392.5% more per $
AWI
16.9%
-375.6%
PLUG
More free cash flow
AWI
AWI
$215.2M more FCF
AWI
$62.2M
$-153.0M
PLUG
Faster 2-yr revenue CAGR
PLUG
PLUG
Annualised
PLUG
36.8%
9.1%
AWI

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AWI
AWI
PLUG
PLUG
Revenue
$388.3M
$225.2M
Net Profit
$65.5M
$-846.0M
Gross Margin
39.8%
2.4%
Operating Margin
23.7%
-338.9%
Net Margin
16.9%
-375.6%
Revenue YoY
5.6%
17.6%
Net Profit YoY
5.3%
36.7%
EPS (diluted)
$1.51
$-0.70

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
AWI
AWI
PLUG
PLUG
Q4 25
$388.3M
$225.2M
Q3 25
$425.2M
$177.1M
Q2 25
$424.6M
$174.0M
Q1 25
$382.7M
$133.7M
Q4 24
$367.7M
$191.5M
Q3 24
$386.6M
$173.7M
Q2 24
$365.1M
$143.3M
Q1 24
$326.3M
$120.3M
Net Profit
AWI
AWI
PLUG
PLUG
Q4 25
$65.5M
$-846.0M
Q3 25
$86.3M
$-361.9M
Q2 25
$87.8M
$-227.1M
Q1 25
$69.1M
$-196.7M
Q4 24
$62.2M
$-1.3B
Q3 24
$76.9M
$-211.2M
Q2 24
$65.9M
$-262.3M
Q1 24
$59.9M
$-295.8M
Gross Margin
AWI
AWI
PLUG
PLUG
Q4 25
39.8%
2.4%
Q3 25
42.0%
-67.9%
Q2 25
41.4%
-30.7%
Q1 25
39.2%
-55.3%
Q4 24
39.1%
-122.5%
Q3 24
42.4%
-57.6%
Q2 24
40.9%
-91.6%
Q1 24
38.1%
-132.3%
Operating Margin
AWI
AWI
PLUG
PLUG
Q4 25
23.7%
-338.9%
Q3 25
27.6%
-197.0%
Q2 25
29.0%
-101.7%
Q1 25
25.7%
-133.5%
Q4 24
22.3%
-678.7%
Q3 24
28.8%
-124.4%
Q2 24
26.0%
-170.7%
Q1 24
26.4%
-215.7%
Net Margin
AWI
AWI
PLUG
PLUG
Q4 25
16.9%
-375.6%
Q3 25
20.3%
-204.4%
Q2 25
20.7%
-130.5%
Q1 25
18.1%
-147.1%
Q4 24
16.9%
-697.5%
Q3 24
19.9%
-121.5%
Q2 24
18.0%
-183.0%
Q1 24
18.4%
-245.9%
EPS (diluted)
AWI
AWI
PLUG
PLUG
Q4 25
$1.51
$-0.70
Q3 25
$1.98
$-0.31
Q2 25
$2.01
$-0.20
Q1 25
$1.58
$-0.21
Q4 24
$1.41
$-1.61
Q3 24
$1.75
$-0.25
Q2 24
$1.50
$-0.36
Q1 24
$1.36
$-0.46

Balance Sheet & Financial Strength

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

Metric
AWI
AWI
PLUG
PLUG
Cash + ST InvestmentsLiquidity on hand
$112.7M
$368.5M
Total DebtLower is stronger
Stockholders' EquityBook value
$900.7M
$978.1M
Total Assets
$1.9B
$2.6B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AWI
AWI
PLUG
PLUG
Q4 25
$112.7M
$368.5M
Q3 25
$90.1M
$165.9M
Q2 25
$81.1M
$140.7M
Q1 25
$82.8M
$295.8M
Q4 24
$79.3M
$205.7M
Q3 24
$73.7M
$93.9M
Q2 24
$73.6M
$62.4M
Q1 24
$69.6M
$172.9M
Total Debt
AWI
AWI
PLUG
PLUG
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
$3.9M
Q2 24
$3.7M
Q1 24
$3.8M
Stockholders' Equity
AWI
AWI
PLUG
PLUG
Q4 25
$900.7M
$978.1M
Q3 25
$889.2M
$1.4B
Q2 25
$837.8M
$1.7B
Q1 25
$793.4M
$1.9B
Q4 24
$757.1M
$1.7B
Q3 24
$717.0M
$3.0B
Q2 24
$669.0M
$3.0B
Q1 24
$626.8M
$2.9B
Total Assets
AWI
AWI
PLUG
PLUG
Q4 25
$1.9B
$2.6B
Q3 25
$1.9B
$3.1B
Q2 25
$1.9B
$3.4B
Q1 25
$1.9B
$3.6B
Q4 24
$1.8B
$3.6B
Q3 24
$1.8B
$4.7B
Q2 24
$1.8B
$4.8B
Q1 24
$1.7B
$4.8B
Debt / Equity
AWI
AWI
PLUG
PLUG
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
0.00×
Q2 24
0.00×
Q1 24
0.00×

Cash Flow & Capital Efficiency

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

Metric
AWI
AWI
PLUG
PLUG
Operating Cash FlowLast quarter
$110.0M
$-148.6M
Free Cash FlowOCF − Capex
$62.2M
$-153.0M
FCF MarginFCF / Revenue
16.0%
-67.9%
Capex IntensityCapex / Revenue
12.3%
1.9%
Cash ConversionOCF / Net Profit
1.68×
TTM Free Cash FlowTrailing 4 quarters
$246.1M
$-647.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AWI
AWI
PLUG
PLUG
Q4 25
$110.0M
$-148.6M
Q3 25
$122.9M
$-89.8M
Q2 25
$81.6M
$-191.8M
Q1 25
$41.0M
$-105.6M
Q4 24
$86.6M
$-131.2M
Q3 24
$96.5M
$-174.9M
Q2 24
$57.3M
$-254.7M
Q1 24
$26.4M
$-167.7M
Free Cash Flow
AWI
AWI
PLUG
PLUG
Q4 25
$62.2M
$-153.0M
Q3 25
$100.3M
$-117.5M
Q2 25
$61.7M
$-230.4M
Q1 25
$21.9M
$-146.0M
Q4 24
$57.8M
$-165.2M
Q3 24
$77.1M
$-234.2M
Q2 24
$37.4M
$-356.0M
Q1 24
$11.7M
$-260.3M
FCF Margin
AWI
AWI
PLUG
PLUG
Q4 25
16.0%
-67.9%
Q3 25
23.6%
-66.4%
Q2 25
14.5%
-132.5%
Q1 25
5.7%
-109.2%
Q4 24
15.7%
-86.3%
Q3 24
19.9%
-134.8%
Q2 24
10.2%
-248.4%
Q1 24
3.6%
-216.5%
Capex Intensity
AWI
AWI
PLUG
PLUG
Q4 25
12.3%
1.9%
Q3 25
5.3%
15.6%
Q2 25
4.7%
22.2%
Q1 25
5.0%
30.3%
Q4 24
7.8%
17.7%
Q3 24
5.0%
34.1%
Q2 24
5.5%
70.7%
Q1 24
4.5%
77.0%
Cash Conversion
AWI
AWI
PLUG
PLUG
Q4 25
1.68×
Q3 25
1.42×
Q2 25
0.93×
Q1 25
0.59×
Q4 24
1.39×
Q3 24
1.25×
Q2 24
0.87×
Q1 24
0.44×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AWI
AWI

Distributors$183.0M47%
Architectural Specialties$143.7M37%
Home Centers$27.2M7%
Retailers And Other$21.7M6%
Direct Customers$12.7M3%

PLUG
PLUG

Sales Of Equipment And Related Infrastructure$111.6M50%
Services Performed On Fuel Cell Systems And Related Infrastructure$41.5M18%
Power Purchase Agreements$36.1M16%
Sale Of Cryogenic Equipment$20.0M9%
Sales Of Fuel Cell Systems$11.2M5%
Other$4.8M2%

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