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Side-by-side financial comparison of Empire State Realty Trust, Inc. (ESRT) 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 $190.3M, roughly 1.2× Empire State Realty Trust, Inc.). Empire State Realty Trust, Inc. runs the higher net margin — 1.6% vs -375.6%, a 377.2% gap on every dollar of revenue. On growth, PLUG POWER INC posted the faster year-over-year revenue change (17.6% vs 5.7%). Over the past eight quarters, PLUG POWER INC's revenue compounded faster (36.8% CAGR vs 0.2%).

Empire State Realty Trust is a leading real estate investment trust that owns, manages, and operates a portfolio of premium commercial, residential, and retail properties primarily in the New York City metropolitan area, including the iconic Empire State Building. It serves corporate tenants, retail partners, and residential occupants, focusing on sustainable property operations and long-term asset value growth.

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.

ESRT vs PLUG — Head-to-Head

Bigger by revenue
PLUG
PLUG
1.2× larger
PLUG
$225.2M
$190.3M
ESRT
Growing faster (revenue YoY)
PLUG
PLUG
+11.9% gap
PLUG
17.6%
5.7%
ESRT
Higher net margin
ESRT
ESRT
377.2% more per $
ESRT
1.6%
-375.6%
PLUG
Faster 2-yr revenue CAGR
PLUG
PLUG
Annualised
PLUG
36.8%
0.2%
ESRT

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
ESRT
ESRT
PLUG
PLUG
Revenue
$190.3M
$225.2M
Net Profit
$3.0M
$-846.0M
Gross Margin
2.4%
Operating Margin
15.5%
-338.9%
Net Margin
1.6%
-375.6%
Revenue YoY
5.7%
17.6%
Net Profit YoY
-73.7%
36.7%
EPS (diluted)
$0.20
$-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
ESRT
ESRT
PLUG
PLUG
Q1 26
$190.3M
Q4 25
$199.2M
$225.2M
Q3 25
$197.7M
$177.1M
Q2 25
$191.3M
$174.0M
Q1 25
$180.1M
$133.7M
Q4 24
$197.6M
$191.5M
Q3 24
$199.6M
$173.7M
Q2 24
$189.5M
$143.3M
Net Profit
ESRT
ESRT
PLUG
PLUG
Q1 26
$3.0M
Q4 25
$32.2M
$-846.0M
Q3 25
$13.6M
$-361.9M
Q2 25
$11.4M
$-227.1M
Q1 25
$15.8M
$-196.7M
Q4 24
$18.8M
$-1.3B
Q3 24
$22.8M
$-211.2M
Q2 24
$28.6M
$-262.3M
Gross Margin
ESRT
ESRT
PLUG
PLUG
Q1 26
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%
Operating Margin
ESRT
ESRT
PLUG
PLUG
Q1 26
15.5%
Q4 25
17.8%
-338.9%
Q3 25
19.9%
-197.0%
Q2 25
18.4%
-101.7%
Q1 25
14.3%
-133.5%
Q4 24
21.7%
-678.7%
Q3 24
22.7%
-124.4%
Q2 24
20.8%
-170.7%
Net Margin
ESRT
ESRT
PLUG
PLUG
Q1 26
1.6%
Q4 25
16.1%
-375.6%
Q3 25
6.9%
-204.4%
Q2 25
6.0%
-130.5%
Q1 25
8.8%
-147.1%
Q4 24
9.5%
-697.5%
Q3 24
11.4%
-121.5%
Q2 24
15.1%
-183.0%
EPS (diluted)
ESRT
ESRT
PLUG
PLUG
Q1 26
$0.20
Q4 25
$0.11
$-0.70
Q3 25
$0.05
$-0.31
Q2 25
$0.04
$-0.20
Q1 25
$0.05
$-0.21
Q4 24
$0.07
$-1.61
Q3 24
$0.08
$-0.25
Q2 24
$0.10
$-0.36

Balance Sheet & Financial Strength

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

Metric
ESRT
ESRT
PLUG
PLUG
Cash + ST InvestmentsLiquidity on hand
$68.8M
$368.5M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.8B
$978.1M
Total Assets
$4.4B
$2.6B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ESRT
ESRT
PLUG
PLUG
Q1 26
$68.8M
Q4 25
$132.7M
$368.5M
Q3 25
$154.1M
$165.9M
Q2 25
$94.6M
$140.7M
Q1 25
$187.8M
$295.8M
Q4 24
$385.5M
$205.7M
Q3 24
$421.9M
$93.9M
Q2 24
$535.5M
$62.4M
Total Debt
ESRT
ESRT
PLUG
PLUG
Q1 26
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
$3.9M
Q2 24
$3.7M
Stockholders' Equity
ESRT
ESRT
PLUG
PLUG
Q1 26
$1.8B
Q4 25
$1.1B
$978.1M
Q3 25
$1.0B
$1.4B
Q2 25
$1.0B
$1.7B
Q1 25
$1.0B
$1.9B
Q4 24
$1.0B
$1.7B
Q3 24
$1.0B
$3.0B
Q2 24
$1.0B
$3.0B
Total Assets
ESRT
ESRT
PLUG
PLUG
Q1 26
$4.4B
Q4 25
$4.5B
$2.6B
Q3 25
$4.1B
$3.1B
Q2 25
$4.1B
$3.4B
Q1 25
$4.1B
$3.6B
Q4 24
$4.5B
$3.6B
Q3 24
$4.4B
$4.7B
Q2 24
$4.4B
$4.8B
Debt / Equity
ESRT
ESRT
PLUG
PLUG
Q1 26
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
0.00×
Q2 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
ESRT
ESRT
PLUG
PLUG
Operating Cash FlowLast quarter
$-148.6M
Free Cash FlowOCF − Capex
$-153.0M
FCF MarginFCF / Revenue
-67.9%
Capex IntensityCapex / Revenue
10.0%
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
ESRT
ESRT
PLUG
PLUG
Q1 26
Q4 25
$249.1M
$-148.6M
Q3 25
$105.3M
$-89.8M
Q2 25
$26.7M
$-191.8M
Q1 25
$83.1M
$-105.6M
Q4 24
$260.9M
$-131.2M
Q3 24
$102.8M
$-174.9M
Q2 24
$37.1M
$-254.7M
Free Cash Flow
ESRT
ESRT
PLUG
PLUG
Q1 26
Q4 25
$50.6M
$-153.0M
Q3 25
$72.8M
$-117.5M
Q2 25
$-55.1M
$-230.4M
Q1 25
$41.1M
$-146.0M
Q4 24
$88.0M
$-165.2M
Q3 24
$-65.1M
$-234.2M
Q2 24
$19.5M
$-356.0M
FCF Margin
ESRT
ESRT
PLUG
PLUG
Q1 26
Q4 25
25.4%
-67.9%
Q3 25
36.8%
-66.4%
Q2 25
-28.8%
-132.5%
Q1 25
22.8%
-109.2%
Q4 24
44.5%
-86.3%
Q3 24
-32.6%
-134.8%
Q2 24
10.3%
-248.4%
Capex Intensity
ESRT
ESRT
PLUG
PLUG
Q1 26
10.0%
Q4 25
99.6%
1.9%
Q3 25
16.5%
15.6%
Q2 25
42.8%
22.2%
Q1 25
23.4%
30.3%
Q4 24
87.5%
17.7%
Q3 24
84.1%
34.1%
Q2 24
9.3%
70.7%
Cash Conversion
ESRT
ESRT
PLUG
PLUG
Q1 26
Q4 25
7.74×
Q3 25
7.72×
Q2 25
2.35×
Q1 25
5.27×
Q4 24
13.88×
Q3 24
4.51×
Q2 24
1.30×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ESRT
ESRT

Rental revenue (1)$166.1M87%
Observatory revenue$18.5M10%
Other revenue and fees$4.1M2%
Lease termination fees$1.4M1%
Third-party management and other fees$277.0K0%

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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