One-glance verdict
Not enough data
Fair value unavailable
Not enough cash-flow history to value this one with our method.
Fundamentals snapshot
Amprius Technologies, Inc.
AMPX · NYQ · Industrials · Electrical Equipment & Parts
Current price
$9.52
52-week range
$7.02 - $24.23
Market cap
$1.39B
Balance sheet
Healthy
-1,438.88x Concerning
Net cash $68.14M. Interest coverage shows how many times profit covers the interest bill.
What stands out
1 Reward
2 Risks
1 rewards · 2 risks
- Reward Revenue grew 49.6% last year.
- Risk Return on equity was -36.1% last year — the company lost money on shareholders' equity.
- Risk Insider ownership is only 1.2% (peer median: 13.6%).
What this company does
Amprius Technologies, Inc.
Amprius Technologies makes special lithium-ion batteries that use silicon anodes, primarily for electric airplanes and drones. Their money comes from selling these advanced batteries to companies building these aircraft. This matters because their unique battery technology could allow these flying machines to go further and stay in the air longer.
How the company got here
Amprius Technologies was founded in 2008, emerging from research at Stanford University focused on silicon nanowire anodes for lithium-ion batteries. [4] The company's early work centered on improving battery performance by using silicon, which has a much higher energy capacity than the graphite typically used in batteries. [4] A key challenge with silicon is that it expands significantly when charged, which can cause it to break down. [4] Amprius developed a way to structure silicon at the nanoscale to overcome this issue, leading to batteries with higher energy density (meaning they can store more energy for their size and weight). [4] The company secured early funding, including from Google Ventures, and began initial commercial production in 2012. [4] To scale up, Amprius established manufacturing operations in China around 2014-2016. [4] In 2022, Amprius became a publicly traded company through a merger with a special purpose acquisition company (SPAC), which provided capital for expanding its U.S. manufacturing capabilities. [2, 4] More recently, in 2024, the company announced plans for a large-scale factory in Brighton, Colorado, and has been expanding its manufacturing partnerships. [2, 5]
What it actually does
Amprius Technologies develops and manufactures advanced lithium-ion batteries that use a proprietary silicon anode technology. [7] These batteries are designed to store more energy in a smaller and lighter package compared to traditional lithium-ion batteries that use graphite anodes. [4, 12] This means devices powered by Amprius batteries can potentially run longer, travel farther, or carry more, depending on the application. [12, 15] The company's batteries are particularly suited for applications where weight and energy storage capacity are critical, such as in aviation and other mobility sectors. [2, 11] Amprius offers its batteries under product platforms like SiCore and SiMaxx. [7]
Amprius Technologies, Inc. - Battery Cells
Amprius Technologies operates as a single business line focused on developing and manufacturing its specialized lithium-ion battery cells. [2] The company's core offering revolves around its proprietary silicon anode technology, which allows its batteries to achieve significantly higher energy density compared to conventional batteries. [4, 11] These high-performance batteries are primarily targeted at demanding applications where maximizing energy storage within weight and space constraints is crucial. [2] This includes sectors like aviation, unmanned aerial systems (drones), defense applications, and certain types of electric vehicles where extended range or payload capacity is a key requirement. [2, 6, 11] The company sells its battery cells to original equipment manufacturers (OEMs) and system integrators who then incorporate them into their products. [2]
What management is betting on now
Amprius's current strategy focuses on scaling up production of its high-energy-density silicon anode batteries to meet growing demand in specialized markets. [2, 9] The company is expanding its manufacturing capabilities through a combination of in-house production, global manufacturing partnerships, and a planned large-scale U.S. factory. [2, 9] Management aims to broaden its product offerings beyond its flagship ultra-high-energy cells to include more cost-balanced options, allowing Amprius to address a wider range of customer needs. [2] A key priority is converting customer evaluations and technical qualifications into sustained production orders, solidifying its position in performance-critical niches like aerospace and defense. [2] The company is also leveraging its U.S.-based manufacturing partnerships to strengthen its domestic supply chain, aligning with national security requirements. [12]
Price history
How the share price has moved
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Earnings history
Last 8 quarters — what happened
Click any quarter to read the call summary and what the numbers say.
FY2024 Q3
$-10.86M
FY2024 Q4
$-9.71M
FY2025 Q1
$-15.04M
FY2025 Q2
$-4.98M
FY2025 Q3
$-9.66M
FY2025 Q4
$-5.85M
FY2026 Q1
$-38.26M
FY2026 Q2
$-4.67M
Revenue
$34.03M
Net income
$-3.15M
Diluted EPS
-0.04
Operating cash flow
$-2.85M
Free cash flow
$-4.67M
Fetching…
Sources
Revenue
$28.54M
Net income
$-5.05M
Diluted EPS
-0.04
Operating cash flow
$-37.27M
Free cash flow
$-38.26M
Fetching…
Sources
Revenue
$25.23M
Net income
$-24.39M
Diluted EPS
-0.19
Operating cash flow
$-3.50M
Free cash flow
$-5.85M
Fetching…
Sources
Revenue
$21.43M
Net income
$-3.89M
Diluted EPS
-0.03
Operating cash flow
$-9.25M
Free cash flow
$-9.66M
Fetching…
Sources
Revenue
$15.07M
Net income
$-6.37M
Diluted EPS
-0.05
Operating cash flow
$-4.26M
Free cash flow
$-4.98M
Fetching…
Sources
Revenue
$11.28M
Net income
$-9.37M
Diluted EPS
-0.08
Operating cash flow
$-14.13M
Free cash flow
$-15.04M
Fetching…
Sources
Revenue
$10.63M
Net income
$-11.42M
Diluted EPS
-0.11
Operating cash flow
$-6.08M
Free cash flow
$-9.71M
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Sources
Revenue
$7.86M
Net income
$-10.85M
Diluted EPS
-0.10
Operating cash flow
$-9.53M
Free cash flow
$-10.86M
Fetching…
Sources
Is it cheap or expensive?
Fair value — vs current price $9.52
We couldn't calculate a fair value right now.
Is it drowning in debt?
Healthy
Net cash $68.1M - more cash than debt. Interest coverage -1438.9x.
Net debt
$-68.14M
Interest coverage
-1,438.88x
Amprius Technologies, Inc.'s profit covers its interest bill about 0.0 times over. which is weaker than most peers shown here and 4 peers sit below 1x, which is the danger zone where profit does not fully cover the interest bill.
Healthy
Worse cushion
Baseline
Better cushion
AMPX
BASELINE
Amprius Technologies, Inc.
Total debt $6.38M Interest coverage -1,438.88x This is the baseline the peer rows are being compared against.
Total debt $541.72M Interest coverage -8.21x Neither company has much profit cushion over interest right now.
Total debt $65.05M Interest coverage -231.78x Neither company has much profit cushion over interest right now.
Total debt $7.43M Interest coverage -4,033.28x Neither company has much profit cushion over interest right now.
Total debt $7.14M Interest coverage -8.85x Neither company has much profit cushion over interest right now.
Total debt $223.90M Interest coverage 2.27x This peer still has a real interest-payment cushion, while AMPX does not.
What you should know
The case for and against AMPX
1 Reward
2 Risks
Rewards
-
Revenue grew 49.6% last year.
Risks
-
Return on equity was -36.1% last year — the company lost money on shareholders' equity.
-
Insider ownership is only 1.2% (peer median: 13.6%).
The numbers
All the key metrics, grouped by purpose
Tap any ? icon to learn what it means.
Valuation
How expensive the stock looks
P/E (TTM)
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Forward P/E
95.20x
P/B
11.07x
P/S
12.73x
EV/EBITDA
-89.93x
PEG ratio
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Profitability
How much profit each dollar creates
Gross margin
22.3%
Operating margin
-12.6%
Net margin
-33.4%
ROE
-36.1%
ROA
-8.6%
Health
Liquidity and balance-sheet strength
Debt / equity
0.05x
Current ratio
7.17x
Quick ratio
6.28x
Total debt
$6.38M
Total cash
$74.52M
Growth
How the business has been compounding
Revenue TTM
$109.23M
Revenue 5Y CAGR
154.9%
EPS TTM
-0.29
EPS 5Y CAGR
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Cash flow
How much cash the business throws off
Operating CF TTM
$-52.87M
Free CF TTM
$-35.53M
FCF margin
-32.5%
Dividend
Shareholder payout
Yield
0.0%
Payout ratio
—
Last ex-div date
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