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Side-by-side financial comparison of AtriCure, Inc. (ATRC) and PLUG POWER INC (PLUG). Click either name above to swap in a different company.

PLUG POWER INC is the larger business by last-quarter revenue ($225.2M vs $140.5M, roughly 1.6× AtriCure, Inc.). On growth, PLUG POWER INC posted the faster year-over-year revenue change (17.6% vs 13.1%). AtriCure, Inc. produced more free cash flow last quarter ($18.4M vs $-153.0M). Over the past eight quarters, PLUG POWER INC's revenue compounded faster (36.8% CAGR vs 13.6%).

AtriCure, Inc. is a global medical device company specializing in the research, development, and manufacturing of innovative surgical tools and therapeutic solutions for treating atrial fibrillation and associated cardiac conditions. Its core customers include hospitals, cardiac surgery centers, and healthcare providers across North America, Europe, and the Asia Pacific region, with products designed to support safer, more effective minimally invasive cardiac procedures.

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.

ATRC vs PLUG — Head-to-Head

Bigger by revenue
PLUG
PLUG
1.6× larger
PLUG
$225.2M
$140.5M
ATRC
Growing faster (revenue YoY)
PLUG
PLUG
+4.6% gap
PLUG
17.6%
13.1%
ATRC
More free cash flow
ATRC
ATRC
$171.5M more FCF
ATRC
$18.4M
$-153.0M
PLUG
Faster 2-yr revenue CAGR
PLUG
PLUG
Annualised
PLUG
36.8%
13.6%
ATRC

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ATRC
ATRC
PLUG
PLUG
Revenue
$140.5M
$225.2M
Net Profit
$-846.0M
Gross Margin
75.0%
2.4%
Operating Margin
1.8%
-338.9%
Net Margin
-375.6%
Revenue YoY
13.1%
17.6%
Net Profit YoY
36.7%
EPS (diluted)
$0.04
$-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
ATRC
ATRC
PLUG
PLUG
Q4 25
$140.5M
$225.2M
Q3 25
$134.3M
$177.1M
Q2 25
$136.1M
$174.0M
Q1 25
$123.6M
$133.7M
Q4 24
$124.3M
$191.5M
Q3 24
$115.9M
$173.7M
Q2 24
$116.3M
$143.3M
Q1 24
$108.9M
$120.3M
Net Profit
ATRC
ATRC
PLUG
PLUG
Q4 25
$-846.0M
Q3 25
$-267.0K
$-361.9M
Q2 25
$-6.2M
$-227.1M
Q1 25
$-6.7M
$-196.7M
Q4 24
$-1.3B
Q3 24
$-7.9M
$-211.2M
Q2 24
$-8.0M
$-262.3M
Q1 24
$-13.3M
$-295.8M
Gross Margin
ATRC
ATRC
PLUG
PLUG
Q4 25
75.0%
2.4%
Q3 25
75.5%
-67.9%
Q2 25
74.5%
-30.7%
Q1 25
74.9%
-55.3%
Q4 24
74.5%
-122.5%
Q3 24
74.9%
-57.6%
Q2 24
74.7%
-91.6%
Q1 24
74.7%
-132.3%
Operating Margin
ATRC
ATRC
PLUG
PLUG
Q4 25
1.8%
-338.9%
Q3 25
0.2%
-197.0%
Q2 25
-4.5%
-101.7%
Q1 25
-4.8%
-133.5%
Q4 24
-11.7%
-678.7%
Q3 24
-6.4%
-124.4%
Q2 24
-6.2%
-170.7%
Q1 24
-10.0%
-215.7%
Net Margin
ATRC
ATRC
PLUG
PLUG
Q4 25
-375.6%
Q3 25
-0.2%
-204.4%
Q2 25
-4.5%
-130.5%
Q1 25
-5.5%
-147.1%
Q4 24
-697.5%
Q3 24
-6.8%
-121.5%
Q2 24
-6.9%
-183.0%
Q1 24
-12.2%
-245.9%
EPS (diluted)
ATRC
ATRC
PLUG
PLUG
Q4 25
$0.04
$-0.70
Q3 25
$-0.01
$-0.31
Q2 25
$-0.13
$-0.20
Q1 25
$-0.14
$-0.21
Q4 24
$-0.33
$-1.61
Q3 24
$-0.17
$-0.25
Q2 24
$-0.17
$-0.36
Q1 24
$-0.28
$-0.46

Balance Sheet & Financial Strength

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

Metric
ATRC
ATRC
PLUG
PLUG
Cash + ST InvestmentsLiquidity on hand
$167.4M
$368.5M
Total DebtLower is stronger
Stockholders' EquityBook value
$491.9M
$978.1M
Total Assets
$654.2M
$2.6B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ATRC
ATRC
PLUG
PLUG
Q4 25
$167.4M
$368.5M
Q3 25
$147.9M
$165.9M
Q2 25
$117.8M
$140.7M
Q1 25
$99.9M
$295.8M
Q4 24
$122.7M
$205.7M
Q3 24
$130.3M
$93.9M
Q2 24
$114.0M
$62.4M
Q1 24
$106.0M
$172.9M
Total Debt
ATRC
ATRC
PLUG
PLUG
Q4 25
Q3 25
$61.9M
Q2 25
$61.9M
Q1 25
$61.9M
Q4 24
Q3 24
$61.9M
$3.9M
Q2 24
$61.9M
$3.7M
Q1 24
$61.9M
$3.8M
Stockholders' Equity
ATRC
ATRC
PLUG
PLUG
Q4 25
$491.9M
$978.1M
Q3 25
$476.5M
$1.4B
Q2 25
$464.5M
$1.7B
Q1 25
$454.6M
$1.9B
Q4 24
$461.0M
$1.7B
Q3 24
$465.0M
$3.0B
Q2 24
$462.1M
$3.0B
Q1 24
$456.3M
$2.9B
Total Assets
ATRC
ATRC
PLUG
PLUG
Q4 25
$654.2M
$2.6B
Q3 25
$635.4M
$3.1B
Q2 25
$608.8M
$3.4B
Q1 25
$591.6M
$3.6B
Q4 24
$609.3M
$3.6B
Q3 24
$615.1M
$4.7B
Q2 24
$597.3M
$4.8B
Q1 24
$591.6M
$4.8B
Debt / Equity
ATRC
ATRC
PLUG
PLUG
Q4 25
Q3 25
0.13×
Q2 25
0.13×
Q1 25
0.14×
Q4 24
Q3 24
0.13×
0.00×
Q2 24
0.13×
0.00×
Q1 24
0.14×
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
ATRC
ATRC
PLUG
PLUG
Operating Cash FlowLast quarter
$20.0M
$-148.6M
Free Cash FlowOCF − Capex
$18.4M
$-153.0M
FCF MarginFCF / Revenue
13.1%
-67.9%
Capex IntensityCapex / Revenue
1.1%
1.9%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$48.3M
$-647.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ATRC
ATRC
PLUG
PLUG
Q4 25
$20.0M
$-148.6M
Q3 25
$26.7M
$-89.8M
Q2 25
$21.6M
$-191.8M
Q1 25
$-11.0M
$-105.6M
Q4 24
$5.8M
$-131.2M
Q3 24
$20.0M
$-174.9M
Q2 24
$7.4M
$-254.7M
Q1 24
$-21.0M
$-167.7M
Free Cash Flow
ATRC
ATRC
PLUG
PLUG
Q4 25
$18.4M
$-153.0M
Q3 25
$24.1M
$-117.5M
Q2 25
$19.0M
$-230.4M
Q1 25
$-13.2M
$-146.0M
Q4 24
$3.1M
$-165.2M
Q3 24
$16.4M
$-234.2M
Q2 24
$5.0M
$-356.0M
Q1 24
$-23.8M
$-260.3M
FCF Margin
ATRC
ATRC
PLUG
PLUG
Q4 25
13.1%
-67.9%
Q3 25
18.0%
-66.4%
Q2 25
13.9%
-132.5%
Q1 25
-10.7%
-109.2%
Q4 24
2.5%
-86.3%
Q3 24
14.1%
-134.8%
Q2 24
4.3%
-248.4%
Q1 24
-21.9%
-216.5%
Capex Intensity
ATRC
ATRC
PLUG
PLUG
Q4 25
1.1%
1.9%
Q3 25
1.9%
15.6%
Q2 25
2.0%
22.2%
Q1 25
1.8%
30.3%
Q4 24
2.2%
17.7%
Q3 24
3.1%
34.1%
Q2 24
2.1%
70.7%
Q1 24
2.5%
77.0%

Financial Flow Comparison

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

Revenue Breakdown by Segment

ATRC
ATRC

Appendage Management$45.5M32%
Openheart$38.5M27%
Other$26.2M19%
Pain Management$22.6M16%
Minimally Invasive$7.7M6%

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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