Ambiq Micro (AMBQ) logo

Ambiq Micro (AMBQ) stock

Low power chips , market cap $1.3B

$43.59
-8.75%

As of 2:52 PM ET, delayed 15+ min · Live for Pro members

Why is AMBQ down?

Down 8.8% today, more than its chip peers' 3.6%; no story names it yet.

Down 20% since Oct 28

Down 20% so far from Oct 28 to Nov 2.

  • Ambiq Micro fell 20% so far from Oct 28 to Nov 2. 11 points of it came on Oct 30.

Sources: Price history, Nov 2, 2026

−2Volatility moves 8.6% a day on a $37M loss over four quarters, with no positive free cash flow

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1 more reason, free with an account →4 more reasons why AMBQ is down 20% since Oct 28, from its filings, with how the business stands, the timeline, and its peers, for Pro members.
Quality Score
-2
Poor
In its industry
#65of 84

AMBQ's Quality Score fell 1 point on Mon, Nov 2, to -2.

See AMBQ's 14 chart checksSee it live, free for 24 hours. No account. No card. Then keep going with a free account.

We do the work for you. Every stock is scored and ranked, every 15 seconds while the market is open. Here it's 15 minutes behind. Pro members see it live.

Key facts on AMBQ

Key facts on AMBQ
Holding it backMoves 8.6% a day with no profit behind it
Its scoreDown:Down to Poor for the first time since Apr 2026 Scores before Sep 10, 2026 were rebuilt.
Latest filing10-Q, Aug 11 Filed its quarterly report (10-Q) for the quarter to Jun 30, 2026
1 more reason behind AMBQ's -2, free with an account →4 more reasons behind AMBQ's -2, for Pro members.

AMBQ in the news

TodayNo story names it yet.

Chip stocks fell together

Fri Oct 30: Group

“Nvidia Weighs Credit Backstop for Nscale Data Center as AI Chip Stocks Slide”

AMBQ closed −11.2% that day.

Reported by TechCrunch · covered by 2 outlets

Get an alert on AMBQ's next big story →

The move is what AMBQ did that session, not a claim about why.

What moves chips

Big Tech spending$201.9B+108%in the quarter, Jul to Sepon a year

What Microsoft, Alphabet, Amazon, and Meta together spent on buildings and equipment, data centers included, in their latest quarter, against a year earlier. Capital spending as each reports it, not a count of chips bought.

Each company's quarterly report (10-Q) on SEC EDGAR, Jul to Sep. Change on the same period a year earlier.

TSMC monthly sales and US export rules, for Pro members.

Tested. Our top-⁠scored stocks returned 2.2x the average stock over the next month. How we tested it

AMBQ catalysts

Coming up

After its last 4 reports it closed +12.0% on average, higher 3 of 4 times.

2 past catalysts since 2026, with sizes and sources, for Pro members.Get in free →

Here is what Pro members see.

  • The same page for Pro members, on AMD

    Its Quality Score and rank, the line that drives it, and the live price.

  • The full chart

    A year of candles to start, out to the whole history, with insider trades marked and the Quality Score under the price.

  • Every line of the score

    Price action, the company, and signals, each with its points, on AMBQ and every other stock.

  • CEOs buying their own stock

    Every CEO buy, biggest names first. Sort, filter, save the list, and set optional alerts.

  • Congress trades

    A member's trades, newest first, each with its amount. Sort and filter the whole list.

  • 14 chart checks, read for you

    The ones firing on the stock, each in plain words, its rule a tap away.

  • Earnings, week by week

    Who reports each day, and how each stock took its last four reports.

  • FDA dates, counted down

    Each date in the company's words, its cash against the date, and an optional alert before it.

  • The market map

    Every stock a box, colored by its Quality Score.

  • Themes, ranked live

    Each theme's stocks ranked by Quality Score, live. Here, AI chips.

  • The top 10, every day

    The ten highest Quality Scores at each close, kept day by day, week by week.

  • Optional alerts, your way

    Pick a stock, a score, a price, a filing, or a whole scan. It tells you by push or email.

  • Your watchlist, scored

    Your stocks by Quality Score, today's move, or name.

  • On your phone and your laptop

    The same account and watchlist on both, each laid out for its screen.

  • Prices refresh every 2.5 seconds during market hours.
  • Optional alerts by push, email, or the bell.
  • Add it to your Home Screen and it opens like an app.

AMBQ has 1 of 14 chart checks firing

Volume1 of 3 shown
Tight range1 of 3 shown
Buying1 of 3 shown
The other 10 checks on AMBQ, and all 14 on every stock.Get in free →

AMBQ RSI today: 29.7, below its 50-day and 200-day averages

Not scored

Not in the Quality Score: over 20 years of tests, 2006 to 2026, they added no edge.

The deep dive on AMBQ

5 more findings on AMBQ, each with its source, for Pro membersGet in free →

How AMBQ ranks in Semiconductors

AMBQ is #65 of 84 by Quality Score.

How AMBQ ranks in Semiconductors
65Ambiq Micro (AMBQ) logoAMBQAmbiq Micro-2

More in Semiconductors

When does AMBQ report earnings, and what happens after?

Reports Tue Nov 10, before the open (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.

What AMBQ reported on Aug 11, 2026

The quarter

The figures are not read from the release yet.

The filing on EDGAR

Where the sales came from

AMBQ's results filing gives no sales by line in a table we read.

The outlook

The outlook the company gave, by period
MeasureFigure
Q3 2026
Net sales$36M to $37M

Figures as filed (SEC filing, Aug 11)

The numbers

Market value
$1.3B
today
Sales
$97.9M
up 31.9% on the year

3 more figures, for Pro members.

No analyst estimates on Breakaway: every figure here is filed.

The whole report on AMBQ: every line of its sales, every outlook beside the one it replaced, and the company's words, for Pro members.Get in free →
ReportedGapReaction5
sessions
Aug 11, 2026Before open+2.8%+2.1%+6.2%
May 12, 2026Before open+16.4%+45.3%+56.2%
Mar 5, 2026Before open+6.5%+7.1%+11.7%

AMBQ closed higher after 3 of its last 4 reports.

All 4 reports, and AMBQ's Quality Score going into each

Everyone reporting earnings next week

AMBQ sales and profit by year

Sales and profit by year

Sales fell in 2025, to $72.5M. It lost money in both years.

AMBQ share count over time

Shares: 48.3 times the count a year ago (to Jun 30).

Shares of AMBQ outstanding, as filed
Shares
outstanding
As
of
24.2MAug 7, 2026
21.4MMay 8, 2026
21.3MMar 2, 2026
18.3MNov 3, 2025
Offerings, shelves, and splits of AMBQ, from its filings
From its
filings
Filed
Raised $156M in a sale of shares, about 12% of its market valueJun 25, 2026
Raised $83.1M in a sale of shares, about 6% of its market valueJan 26, 2026
Raised $96M in a sale of shares, about 7% of its market valueJul 31, 2025

Insiders trading AMBQ

AMBQ insider trades

6 insiders sold $22.4M across 27 filings in the last 6 months. No open-⁠market buys on record. The newest:

SellFumihide Esaka$599KChief Executive Officerat $69.77 on Oct 2, filed Oct 6
All 27 insider filings on AMBQ from the last six months, for Pro members.Get in free →

All AMBQ insider trades

AMBQ's officers and directors

Officers and directors with a Form 4 in the last 12 months.

2 more officers and directors file at AMBQ. Each page above names the rest.

See insider trades by person

Which ETFs hold AMBQ?

In ETFs: AMBQ is under 0.1% of VTI, the most of the 24 funds Breakaway covers, by their holdings as filed for Jun 30, 2026.

About Ambiq Micro

Ambiq Micro Inc is a fabless semiconductor company that has developed technology based on a patented Sub-threshold Power Optimized Technology (SPOT) platform that significantly reduces the amount of power consumed by integrated circuits. It is a pioneer and provider of ultra-low power semiconductor solutions designed to address the power consumption challenges of general purpose and AI compute - especially at the edge. The company provides a full-stack solution encompassing tightly integrated hardware and software. Its solutions include a diverse family of systems-on-chip (SoCs) and the software required to enable on-chip AI processing, general compute, sensing, security, storage, wireless connectivity, and developed graphics.

202 employeesAustin, TXambiq.com

AMBQ's score card

Ambiq Micro (AMBQ): Quality Score -2, Poor, #65 of 84 in Semiconductors, with its price, on Breakaway
The picture a link to this page shows when it is shared.

Pro members see every line of every stock's score.

  • What would turn AMBQ's score around: 7 things
  • 4 more filings explained, a plain line each
  • 4 more things pulling AMBQ's score down
BreakawayOct 6Fumihide Esaka sold AMBQ$599K at $69.77, filed Oct 6

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See AMBQ's 14 chart checks

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Straight Answers

As of Nov 2, 2026: AMBQ's Quality Score is -2 (Poor), #65 of 84 in Semiconductors. Insiders sold $22.4M in the last 6 months (Form 4).

Is AMBQ a good stock to buy? What its Quality Score says

AMBQ scores -2 today, which Breakaway calls Poor. It is #65 of 84 in Semiconductors by Quality Score, with 1 of 14 chart checks firing. Down 20% so far from Oct 28 to Nov 2. Shares: 48.3 times the count 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.

What is AMBQ's Quality Score?

AMBQ scores -2 today, which Breakaway calls Poor (below zero). That is #65 of 84 in Semiconductors 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 AMBQ's -2.

Are insiders buying AMBQ?

6 insiders sold $22.4M across 27 filings in the last 6 months. No open-⁠market buys on record. The newest is Fumihide Esaka, Chief Executive Officer, who sold $599K on Oct 2. Every filing, with the scored weight, for Pro members.

Are the prices delayed?

Only on the public pages, which run at least 15 minutes behind. Pro members, and anyone on a guest pass, see real-time prices: the scanner refreshes every 15 seconds, and your watchlist every few seconds, pre-market and after hours included.

The moves after past earnings reports are past behavior, not a forecast.

The price, the score, the chart checks and readings, and the industry rank on this page are delayed at least 15 minutes.

Our top-scored stocks' record: Oct 2021 to Sep 2026, before costs. Recorded live since Sep 9 2026.

Breakaway publishes impersonal securities research and analytical tools: one formula, the same score for everyone. It is not personalized investment advice, and nothing here is a recommendation to buy or sell any security.

Market data from a licensed vendor. The age of every quote is shown on the page.

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