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Side-by-side financial comparison of Esperion Therapeutics, Inc. (ESPR) 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 $168.4M, roughly 1.3× Esperion Therapeutics, Inc.). On growth, Esperion Therapeutics, Inc. posted the faster year-over-year revenue change (143.7% vs 17.6%). Over the past eight quarters, PLUG POWER INC's revenue compounded faster (36.8% CAGR vs 10.6%).

Esperion Therapeutics, Inc. is a publicly traded American pharmaceutical company focused on the development of bempedoic acid, an orally available small molecule designed to lower elevated levels of LDL-C. The company is headquartered in Ann Arbor, Michigan.

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.

ESPR vs PLUG — Head-to-Head

Bigger by revenue
PLUG
PLUG
1.3× larger
PLUG
$225.2M
$168.4M
ESPR
Growing faster (revenue YoY)
ESPR
ESPR
+126.1% gap
ESPR
143.7%
17.6%
PLUG
Faster 2-yr revenue CAGR
PLUG
PLUG
Annualised
PLUG
36.8%
10.6%
ESPR

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ESPR
ESPR
PLUG
PLUG
Revenue
$168.4M
$225.2M
Net Profit
$-846.0M
Gross Margin
2.4%
Operating Margin
50.6%
-338.9%
Net Margin
-375.6%
Revenue YoY
143.7%
17.6%
Net Profit YoY
36.7%
EPS (diluted)
$0.32
$-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
ESPR
ESPR
PLUG
PLUG
Q4 25
$168.4M
$225.2M
Q3 25
$87.3M
$177.1M
Q2 25
$82.4M
$174.0M
Q1 25
$65.0M
$133.7M
Q4 24
$69.1M
$191.5M
Q3 24
$51.6M
$173.7M
Q2 24
$73.8M
$143.3M
Q1 24
$137.7M
$120.3M
Net Profit
ESPR
ESPR
PLUG
PLUG
Q4 25
$-846.0M
Q3 25
$-31.3M
$-361.9M
Q2 25
$-12.7M
$-227.1M
Q1 25
$-40.5M
$-196.7M
Q4 24
$-1.3B
Q3 24
$-29.5M
$-211.2M
Q2 24
$-61.9M
$-262.3M
Q1 24
$61.0M
$-295.8M
Gross Margin
ESPR
ESPR
PLUG
PLUG
Q4 25
2.4%
Q3 25
-67.9%
Q2 25
-30.7%
Q1 25
-55.3%
Q4 24
-122.5%
Q3 24
-57.6%
Q2 24
-91.6%
Q1 24
-132.3%
Operating Margin
ESPR
ESPR
PLUG
PLUG
Q4 25
50.6%
-338.9%
Q3 25
-11.4%
-197.0%
Q2 25
8.6%
-101.7%
Q1 25
-34.0%
-133.5%
Q4 24
-6.4%
-678.7%
Q3 24
-31.0%
-124.4%
Q2 24
3.5%
-170.7%
Q1 24
52.5%
-215.7%
Net Margin
ESPR
ESPR
PLUG
PLUG
Q4 25
-375.6%
Q3 25
-35.9%
-204.4%
Q2 25
-15.4%
-130.5%
Q1 25
-62.2%
-147.1%
Q4 24
-697.5%
Q3 24
-57.2%
-121.5%
Q2 24
-83.9%
-183.0%
Q1 24
44.3%
-245.9%
EPS (diluted)
ESPR
ESPR
PLUG
PLUG
Q4 25
$0.32
$-0.70
Q3 25
$-0.16
$-0.31
Q2 25
$-0.06
$-0.20
Q1 25
$-0.21
$-0.21
Q4 24
$-0.14
$-1.61
Q3 24
$-0.15
$-0.25
Q2 24
$-0.33
$-0.36
Q1 24
$0.34
$-0.46

Balance Sheet & Financial Strength

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

Metric
ESPR
ESPR
PLUG
PLUG
Cash + ST InvestmentsLiquidity on hand
$167.9M
$368.5M
Total DebtLower is stronger
Stockholders' EquityBook value
$-302.0M
$978.1M
Total Assets
$465.9M
$2.6B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ESPR
ESPR
PLUG
PLUG
Q4 25
$167.9M
$368.5M
Q3 25
$92.4M
$165.9M
Q2 25
$86.1M
$140.7M
Q1 25
$114.6M
$295.8M
Q4 24
$144.8M
$205.7M
Q3 24
$144.7M
$93.9M
Q2 24
$189.3M
$62.4M
Q1 24
$226.6M
$172.9M
Total Debt
ESPR
ESPR
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
ESPR
ESPR
PLUG
PLUG
Q4 25
$-302.0M
$978.1M
Q3 25
$-451.4M
$1.4B
Q2 25
$-433.5M
$1.7B
Q1 25
$-426.2M
$1.9B
Q4 24
$-388.7M
$1.7B
Q3 24
$-370.2M
$3.0B
Q2 24
$-344.2M
$3.0B
Q1 24
$-294.3M
$2.9B
Total Assets
ESPR
ESPR
PLUG
PLUG
Q4 25
$465.9M
$2.6B
Q3 25
$364.0M
$3.1B
Q2 25
$347.1M
$3.4B
Q1 25
$324.0M
$3.6B
Q4 24
$343.8M
$3.6B
Q3 24
$314.1M
$4.7B
Q2 24
$352.3M
$4.8B
Q1 24
$373.1M
$4.8B
Debt / Equity
ESPR
ESPR
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
ESPR
ESPR
PLUG
PLUG
Operating Cash FlowLast quarter
$45.2M
$-148.6M
Free Cash FlowOCF − Capex
$-153.0M
FCF MarginFCF / Revenue
-67.9%
Capex IntensityCapex / Revenue
0.0%
1.9%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-647.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ESPR
ESPR
PLUG
PLUG
Q4 25
$45.2M
$-148.6M
Q3 25
$-4.3M
$-89.8M
Q2 25
$-31.4M
$-191.8M
Q1 25
$-22.6M
$-105.6M
Q4 24
$-35.0M
$-131.2M
Q3 24
$-35.3M
$-174.9M
Q2 24
$-7.2M
$-254.7M
Q1 24
$53.8M
$-167.7M
Free Cash Flow
ESPR
ESPR
PLUG
PLUG
Q4 25
$-153.0M
Q3 25
$-117.5M
Q2 25
$-230.4M
Q1 25
$-146.0M
Q4 24
$-165.2M
Q3 24
$-35.5M
$-234.2M
Q2 24
$-7.3M
$-356.0M
Q1 24
$53.8M
$-260.3M
FCF Margin
ESPR
ESPR
PLUG
PLUG
Q4 25
-67.9%
Q3 25
-66.4%
Q2 25
-132.5%
Q1 25
-109.2%
Q4 24
-86.3%
Q3 24
-68.7%
-134.8%
Q2 24
-9.9%
-248.4%
Q1 24
39.0%
-216.5%
Capex Intensity
ESPR
ESPR
PLUG
PLUG
Q4 25
0.0%
1.9%
Q3 25
0.0%
15.6%
Q2 25
0.0%
22.2%
Q1 25
0.0%
30.3%
Q4 24
0.0%
17.7%
Q3 24
0.3%
34.1%
Q2 24
0.1%
70.7%
Q1 24
0.1%
77.0%
Cash Conversion
ESPR
ESPR
PLUG
PLUG
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
0.88×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ESPR
ESPR

Collaboration Revenue$124.7M74%
Products$43.7M26%

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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