Amprius Technologies (AMPX) Stock Fundamentals, Analysis & Risk Signals

Health score, price, valuation, risk signals, and key metrics at a glance.

Amprius Technologies

NYSE•Industrials•Electrical Equipment & Parts

$9.10-0.06(-0.01%)Pre-market

Market Cap

$1.36B

P/S

12.5x

P/B

10.8x

Amprius Technologies, Inc. develops, manufactures, and markets lithium-ion batteries for mobility applications. The company provides silicon anode lithium-ion batteries under the SiCore and SiMaxx product platforms. Its batteries are primarily used for existing and emerging aviation applications, including unmanned aerial systems, such as drones and high-altitude pseudo satellites. The company was founded in 2008 and is headquartered in Fremont, California.

How this company scores

AverageMetricSide Score: 51/100

Strongest: Growth (18/25); weakest: Cash & Earnings Quality (8/25).

Profitability10/25

Growth18/25

Balance Sheet & Red Flags15/25

Cash & Earnings Quality8/25

Strengths

Growing revenueInterest easily coveredCash-backed earningsConsistent growth

Valuation vs. 5-year range

Today's multiple positioned against its own trailing range — a visual premium/discount check.

P/S · 12.5x5y range 7.0x – 143.1x

Currently below its 15-quarter median.

P/B · 10.8x5y range 1.9x – 18.4x

Currently above its 16-quarter median.

Watch items

Data-driven signals worth keeping an eye on across the last 8 quarters

High Risk

Margin Pressure

Red Flag

The company posted negative operating margins in recent quarters — core operations are unprofitable.

Earnings Quality

Red Flag

Free cash flow has been negative in 8 of the last 8 quarters — earnings are not translating to cash.

Price & Volume

Market Cap $1.36B

Metrics at a Glance

as of June 2026

Revenue & Profit

Revenue, EBITDA, operating income, net income, EPS, and shares

TTM Revenue: $109.23M
Q. Revenue: $34.03M
TTM EBITDA: $-37.23M
TTM Op. Income: $-41.15M
Q. Op. Income: $-4.30M
TTM Net Income: $-36.48M
Q. Net Income: $-3.15M
EPS: $-0.04
Shares Out.: $143.47M

$109.23M in TTM revenue grew 143.6% YoY, reaching $34.03M last quarter. TTM EBITDA of $-37.23M and TTM operating income of $-41.15M show growth is flowing through to the bottom line. However, net income is negative at $36.48M — growth is not yet reaching the bottom line. Across the last 8 quarters, TTM revenue has risen for 7 consecutive quarters — an improving trend.

Margins

Gross, EBITDA, operating, and net margin trends

Gross Margin: 27.3%
EBITDA Margin: -10.4%
Op. Margin: -12.6%
Net Margin: -9.3%

Op. margin of -12.6% is up 32.6% YoY — cost efficiency is improving. Net margin at -9.3% and gross margin of 27.3% show how much of each revenue dollar survives to profit. Across the last 8 quarters, operating margin has risen for 2 consecutive quarters — an improving trend.

Price Ratios

P/E, P/S, P/B, EV/EBITDA, FCF yield, and earnings yield

P/E Ratio: N/A
P/S Ratio: 12.5x
P/B Ratio: 10.8x

P/S of 12.5x and P/B of 10.8x. P/S is high, meaning growth expectations are priced in.

Assets & Liabilities

Total assets, cash, debt, book value, and leverage

Total Assets: $149.18M
Cash: $74.52M
Long-Term Debt: N/A
Book Value: $125.64M
D/E Ratio: N/A
Debt/EBITDA: N/A

Cash Flow

Operating cash flow, free cash flow, FCF margin, and earnings quality

Op. Cash Flow: $-2.85M
TTM Free Cash Flow: $-58.44M
FCF Margin: -53.5%
FCF / Net Income: 1.6

TTM FCF of $-58.44M on $-2.85M in operating cash flow. The FCF / Net Income ratio of 1.6x means free cash flow covers net income — earnings are backed by cash. Over the past year, free cash flow is down 75% — an improving trend.