Amprius Technologies Inc. Common Stock (AMPX)

FairStock Score: 23/100 — RISKY

Key Financials

AI Analysis

AI-generated, general educational analysis — not personal investment advice.

I look for businesses that earn good returns on capital and sell at a margin of safety. Amprius does not yet qualify on either count. It makes silicon-anode lithium-ion batteries for drones and aviation, a promising niche, but filed results show fiscal Q2 2026 revenue of $34.0M and net income of -$3.2M; fiscal Q1 2026 revenue was $28.5M with a -$5.0M net loss. Revenue is scaling—FY2025 was $71.9M versus $23.6M in FY2024 and $8.8M in FY2023—but the company still lost $44.0M in FY2025 after $44.7M in FY2024. FairStock's calculations at the 2026-10-26 close of $8.35 show a negative P/E of -28.79, P/B of 9.71, ROE of -36.07%, ROCE of -8.55%, and FCF yield of -4.8% on -$58.4M trailing FCF. The balance sheet looks lightly levered with D/E of 0.05 and Altman Z-Score 29.37, but cash burn is real. I see no proven moat in the figures; the technology may be differentiated, but losses in each of the last four years and no Peter Lynch category mean there is no earnings record to value. The Piotroski F-Score of 6/9 and narrowing quarterly loss are encouraging, but price is high against book and cash flow. This is a speculative growth story, not a Graham bargain.

In plain English: Amprius Technologies makes advanced batteries mainly for drones and aircraft. Sales are growing fast, but the company still loses money and uses cash. At $8.35 on 2026-10-26, the stock looks expensive compared with current profits and the company's net assets, even though debt is low.

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Data as of 2026-10-26 close · note generated 2026-10-28 · model deepseek-flash

Sources (SEC EDGAR): fiscal Q2 2026 10-Q (period ended 2026-06-30) · fiscal Q1 2026 10-Q (period ended 2026-03-31) · fiscal Q3 2025 10-Q (period ended 2025-09-30) · fiscal Q2 2025 10-Q (period ended 2025-06-30) · FY2025 10-K (period ended 2025-12-31) · FY2024 10-K (period ended 2024-12-31) · FY2023 10-K (period ended 2023-12-31)

Fundamentals from company filings and market-data providers; prices are end-of-day, not real-time. AI-generated analysis is general and educational — not personal investment advice. Scoring methodology · Score test · Disclaimer