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Side-by-side financial comparison of Energy Vault Holdings, Inc. (NRGV) and REPLIGEN CORP (RGEN). Click either name above to swap in a different company.

REPLIGEN CORP is the larger business by last-quarter revenue ($197.9M vs $153.3M, roughly 1.3× Energy Vault Holdings, Inc.). REPLIGEN CORP runs the higher net margin — 6.7% vs -13.5%, a 20.2% gap on every dollar of revenue. On growth, Energy Vault Holdings, Inc. posted the faster year-over-year revenue change (231.8% vs 13.6%). Over the past eight quarters, Energy Vault Holdings, Inc.'s revenue compounded faster (344.5% CAGR vs 14.4%).

Energy Vault is a global energy storage company specializing in gravity and kinetic energy based, long-duration energy storage products. Energy Vault's primary product is a gravity battery to store energy by stacking heavy blocks made of composite material into a structure, capturing potential energy in the elevation gain of the blocks. When demand for electricity is high, these blocks are lowered with the motors functioning as generators and delivering electricity to the grid.

Repligen Corporation is a global life sciences company devoted to the development and commercialization of innovative bioprocessing technologies and systems that enable efficiencies in the process of manufacturing biological drugs.2025 The company is based in Waltham, Massachusetts,2014 and was incorporated in Delaware in 1981. A public company, Repligen is listed on the NASDAQ exchange under the symbol RGEN. As of 2025, Repligen employs over 1,900 employees globally and serves primarily biop...

NRGV vs RGEN — Head-to-Head

Bigger by revenue
RGEN
RGEN
1.3× larger
RGEN
$197.9M
$153.3M
NRGV
Growing faster (revenue YoY)
NRGV
NRGV
+218.2% gap
NRGV
231.8%
13.6%
RGEN
Higher net margin
RGEN
RGEN
20.2% more per $
RGEN
6.7%
-13.5%
NRGV
Faster 2-yr revenue CAGR
NRGV
NRGV
Annualised
NRGV
344.5%
14.4%
RGEN

Income Statement — Q2 FY2026 vs Q4 FY2025

Metric
NRGV
NRGV
RGEN
RGEN
Revenue
$153.3M
$197.9M
Net Profit
$-20.7M
$13.3M
Gross Margin
20.6%
52.5%
Operating Margin
74.3%
9.0%
Net Margin
-13.5%
6.7%
Revenue YoY
231.8%
13.6%
Net Profit YoY
66.5%
143.9%
EPS (diluted)
$-0.13
$0.24

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
NRGV
NRGV
RGEN
RGEN
Q2 26
$153.3M
Q4 25
$197.9M
Q3 25
$33.3M
$188.8M
Q2 25
$8.5M
$182.4M
Q1 25
$8.5M
$169.2M
Q4 24
$33.5M
$174.1M
Q3 24
$1.2M
$154.9M
Q2 24
$3.8M
$154.1M
Net Profit
NRGV
NRGV
RGEN
RGEN
Q2 26
$-20.7M
Q4 25
$13.3M
Q3 25
$-26.8M
$14.9M
Q2 25
$-34.9M
$14.9M
Q1 25
$-21.1M
$5.8M
Q4 24
$-61.8M
$-30.3M
Q3 24
$-26.6M
$-654.0K
Q2 24
$-26.2M
$3.3M
Gross Margin
NRGV
NRGV
RGEN
RGEN
Q2 26
20.6%
Q4 25
52.5%
Q3 25
27.0%
53.2%
Q2 25
29.6%
50.0%
Q1 25
57.1%
53.6%
Q4 24
7.7%
26.1%
Q3 24
40.3%
50.0%
Q2 24
27.8%
49.8%
Operating Margin
NRGV
NRGV
RGEN
RGEN
Q2 26
74.3%
Q4 25
9.0%
Q3 25
-52.8%
8.9%
Q2 25
-330.7%
7.6%
Q1 25
-244.8%
3.9%
Q4 24
-150.6%
-17.7%
Q3 24
-2258.1%
-5.1%
Q2 24
-739.7%
1.0%
Net Margin
NRGV
NRGV
RGEN
RGEN
Q2 26
-13.5%
Q4 25
6.7%
Q3 25
-80.5%
7.9%
Q2 25
-410.3%
8.2%
Q1 25
-247.7%
3.4%
Q4 24
-184.7%
-17.4%
Q3 24
-2217.9%
-0.4%
Q2 24
-694.6%
2.2%
EPS (diluted)
NRGV
NRGV
RGEN
RGEN
Q2 26
$-0.13
Q4 25
$0.24
Q3 25
$-0.16
$0.26
Q2 25
$-0.22
$0.26
Q1 25
$-0.14
$0.10
Q4 24
$-0.41
$-0.55
Q3 24
$-0.18
$-0.01
Q2 24
$-0.18
$0.06

Balance Sheet & Financial Strength

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

Metric
NRGV
NRGV
RGEN
RGEN
Cash + ST InvestmentsLiquidity on hand
$58.3M
$767.6M
Total DebtLower is stronger
$38.0M
$542.2M
Stockholders' EquityBook value
$67.5M
$2.1B
Total Assets
$312.9M
$2.9B
Debt / EquityLower = less leverage
0.56×
0.26×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
NRGV
NRGV
RGEN
RGEN
Q2 26
$58.3M
Q4 25
$767.6M
Q3 25
$32.7M
$748.7M
Q2 25
$22.3M
$708.9M
Q1 25
$21.2M
$697.2M
Q4 24
$30.0M
$757.4M
Q3 24
$51.1M
$784.0M
Q2 24
$106.8M
$809.1M
Total Debt
NRGV
NRGV
RGEN
RGEN
Q2 26
$38.0M
Q4 25
$542.2M
Q3 25
$537.9M
Q2 25
Q1 25
Q4 24
$525.6M
Q3 24
Q2 24
Stockholders' Equity
NRGV
NRGV
RGEN
RGEN
Q2 26
$67.5M
Q4 25
$2.1B
Q3 25
$80.5M
$2.1B
Q2 25
$90.3M
$2.1B
Q1 25
$114.9M
$2.0B
Q4 24
$126.3M
$2.0B
Q3 24
$179.1M
$2.0B
Q2 24
$195.6M
$2.0B
Total Assets
NRGV
NRGV
RGEN
RGEN
Q2 26
$312.9M
Q4 25
$2.9B
Q3 25
$281.9M
$2.9B
Q2 25
$248.8M
$2.9B
Q1 25
$217.4M
$2.9B
Q4 24
$183.9M
$2.8B
Q3 24
$252.9M
$2.8B
Q2 24
$255.6M
$2.9B
Debt / Equity
NRGV
NRGV
RGEN
RGEN
Q2 26
0.56×
Q4 25
0.26×
Q3 25
0.26×
Q2 25
Q1 25
Q4 24
0.27×
Q3 24
Q2 24

Cash Flow & Capital Efficiency

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

Metric
NRGV
NRGV
RGEN
RGEN
Operating Cash FlowLast quarter
$25.7M
Free Cash FlowOCF − Capex
$17.6M
FCF MarginFCF / Revenue
8.9%
Capex IntensityCapex / Revenue
4.1%
Cash ConversionOCF / Net Profit
1.93×
TTM Free Cash FlowTrailing 4 quarters
$93.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
NRGV
NRGV
RGEN
RGEN
Q2 26
Q4 25
$25.7M
Q3 25
$-11.7M
$48.1M
Q2 25
$15.4M
$28.6M
Q1 25
$-2.7M
$15.0M
Q4 24
$-34.8M
$39.2M
Q3 24
$-9.2M
$49.3M
Q2 24
$-12.8M
$42.2M
Free Cash Flow
NRGV
NRGV
RGEN
RGEN
Q2 26
Q4 25
$17.6M
Q3 25
$-27.2M
$43.4M
Q2 25
$6.9M
$21.5M
Q1 25
$-9.5M
$11.4M
Q4 24
$-45.4M
$33.6M
Q3 24
$-36.4M
$42.3M
Q2 24
$-25.1M
$37.4M
FCF Margin
NRGV
NRGV
RGEN
RGEN
Q2 26
Q4 25
8.9%
Q3 25
-81.5%
23.0%
Q2 25
81.6%
11.8%
Q1 25
-111.5%
6.8%
Q4 24
-135.5%
19.3%
Q3 24
-3039.9%
27.3%
Q2 24
-665.1%
24.3%
Capex Intensity
NRGV
NRGV
RGEN
RGEN
Q2 26
Q4 25
4.1%
Q3 25
46.4%
2.5%
Q2 25
98.8%
3.9%
Q1 25
79.5%
2.1%
Q4 24
31.5%
3.2%
Q3 24
2273.1%
4.5%
Q2 24
325.8%
3.1%
Cash Conversion
NRGV
NRGV
RGEN
RGEN
Q2 26
Q4 25
1.93×
Q3 25
3.23×
Q2 25
1.92×
Q1 25
2.57×
Q4 24
Q3 24
Q2 24
12.70×

Financial Flow Comparison

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

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