Why is AMPX down?
Down 63% from its Jun 2, 2026 high.
- Its $74.5M in cash covers about 6 quarters at the past year's pace of $13.2M a quarter.
- Arithmetic on filed figures,
Down 63% from its Jun 2, 2026 high.
AMPX's Quality Score fell 4 points on Fri, Oct 30, to -3. Closed more than 1.5% below its 21-day average (4 chart checks stopped).
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| Holding it back | A $36M loss |
| Latest filing | 8-K, Sep 28 |
TodayWith its group.
Wed Nov 11: Q3 2026 Earnings Conference CallDate confirmed.
After its last 4 reports it closed +3.2% on average, higher 3 of 4 times.
Poorfor quality, not price, 1 of 14 chart checks firingWhat the Quality Score means
AMPX is #10 of 18 by Quality Score among Miscellaneous Electrical Machinery, Equipment & Supplies.
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Net income over four quarters: AMPX -$36.5M, KTOS $30.9M, UMAC -$6.46M, AIRO -$25.4M.
Reports Tue Nov 10, after the close (in 8 days). Confirmed.
What an earnings report is: every 3 months, a company tells everyone how much it sold and earned. We read the figures, the outlook, and how the stock moved after.
The figures are not read from the release yet.
AMPX's results filing gives no sales by line in a table we read.
| Measure | Figure |
|---|---|
| Total revenue | at least $140 million |
Its share count grew 20% a year over 3 years.
| Reported | Gap | Reaction | 5 sessions |
|---|---|---|---|
| Aug 4, 2026 | +14.7% | +8.4% | +11.8% |
| May 6, 2026 | -13.8% | -27.4% | -21.1% |
| Mar 4, 2026 | +7.3% | +18.6% | +48.1% |
Sales grew every year from 2021 to 2025, to $73M. It lost money in each of the five years.
4 insiders sold $6.3M across 14 filings in the last 6 months. No open-market buys on record. The newest:
Officers and directors with a Form 4 in the last 12 months.
In ETFs: AMPX is under 0.1% of VTI, the most of the 24 funds Breakaway covers, by their holdings as filed for Jun 30, 2026.
Amprius Technologies Inc is engaged in the production of silicon anodes for high-energy-density lithium-ion batteries. The company develops, manufactures and markets lithium-ion batteries for mobility applications, including the aviation, electric vehicle (EV) and light electric vehicle (LEV) industries. The company's batteries are used for existing and emerging aviation applications, including unmanned aerial systems, such as drones and high-altitude pseudo satellites. Its silicon anodes are a direct drop-in replacement of the graphite anode in traditional lithium-ion batteries, and its manufacturing processes leverage the manufacturing processes for conventional lithium-ion batteries and the related supply chain.
“We compete directly and indirectly with current battery manufacturers and with an increasing number of companies that are developing new battery technologies and chemistries to address the growing market for electrified mobility Index to Consolidated Financial Statements solutions.”
AMPX scores -3 today, which Breakaway calls Poor. It is #10 of 18 in Miscellaneous Electrical Machinery, Equipment & Supplies by Quality Score, with 1 of 14 chart checks firing. Down 63% from its Jun 2, 2026 high. Shares: 17.8% more than a year ago (to Jun 30). Breakaway does not say whether to buy any stock: the score does not know your situation, and it is not a recommendation to buy or sell anything. Please do your own research.
AMPX scores -3 today, which Breakaway calls Poor (below zero). That is #10 of 18 in Miscellaneous Electrical Machinery, Equipment & Supplies by Quality Score. The score adds up the chart checks, the trend, the company's filed sales, its profits, the news, insider trades, and Congress trades. The section above lists the lines behind AMPX's -3.
4 insiders sold $6.3M across 14 filings in the last 6 months. No open-market buys on record. The newest is Kang Sun, Director, who sold $642K on Aug 21. Every filing, with the scored weight, for Pro members.
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