Allegro MicroSystems (ALGM) logo

Allegro MicroSystems (ALGM) stock

Market cap $6.2B

$31.66
+3.70%

As of 3:39 PM ET, delayed 15+ min · Live for Pro members

Why is ALGM down?

Up 3.7% today, while its chip peers are down 4.1%; no story names it yet.

Fell on Oct 29

Down 7% on Oct 29 while the S&P 500 fell 0.4%.

Sources: Price history, Oct 29, 2026; SEC filing, Oct 29, 2026

−1Long-term trend below a falling 200-day average

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1 more reason, free with an account →2 more reasons why ALGM fell on Oct 29, from its filings, with the timeline and its peers, for Pro members.
Quality Score
6
Average
In its industry
#27of 84

ALGM's Quality Score was unchanged on Fri, Oct 30, at 6.

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Key facts on ALGM

Key facts on ALGM
The companyA $14M profit after losing money the year before
Latest filing8-K, Oct 29 Reported its quarterly results
1 more reason behind ALGM's 6, free with an account →2 more reasons behind ALGM's 6, for Pro members.

ALGM 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”

ALGM closed −7.6% that day.

Reported by TechCrunch · covered by 2 outlets

Get an alert on ALGM's next big story →

The move is what ALGM 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

ALGM catalysts

Coming up

After its last 4 reports it closed -1.3% on average, higher 1 of 4 times.

24 past catalysts since 2020, 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 ALGM 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.

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ALGM 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 ALGM, and all 14 on every stock.Get in free →

ALGM RSI today: 42.5, 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 ALGM

12 more findings on ALGM, each with its source, for Pro membersGet in free →

How ALGM ranks in Semiconductors

ALGM is #27 of 84 by Quality Score.

How ALGM ranks in Semiconductors
27Allegro MicroSystems (ALGM) logoALGMAllegro MicroSystems6

Net income over four quarters: ALGM $14.2M, DIOD $86.1M.

More in Semiconductors

When does ALGM report earnings, and what happens after?

Expected to report Thu Jan 28, before the open (in 87 days). Expected.

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 ALGM reported on Oct 29, 2026

The quarter

The figures are not read from the release yet.

The filing on EDGAR

Where the sales came from

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

The outlook

The outlook the company gave, by period
MeasureFigure
Q3 fiscal 2027
Total net sales$278M to $288M

Figures as filed (SEC filing, Oct 29)

2 more outlook lines, for Pro members.

The numbers

Market value
$6.2B
today
Sales
$946M
up 24.2% on the year
Free cash flow
$87.8M
last 12 months

Sales grew 8.5% a year over 5 years, fiscal 2021 to 2026.

Its share count grew 1% a year over 5 years.

5 more figures, for Pro members.

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

The whole report on ALGM: 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
Oct 29, 2026Before open-5.2%-6.6%open
Jul 30, 2026Before open+0.2%-1.8%-1.0%
May 7, 2026Before open-14.5%-6.7%-10.5%

ALGM closed higher after 1 of its last 4 reports.

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

ALGM sales and profit by year

Sales and profit by year

Sales grew in four of the last six years, to $890M in 2026. It made a profit in five of the seven years.

Insiders trading ALGM

ALGM insider trades

9 insiders sold $3.6M across 9 filings in the last 6 months. No open-⁠market buys on record. The newest:

SellJennie Raubacher$45KDirectorat $45.32 on Aug 17, filed Aug 18
All 9 insider filings on ALGM from the last six months, for Pro members.Get in free →

All ALGM insider trades

ALGM trades by Congress and the executive branch

One trade disclosed in the last six months. The newest:

BuyGilbert Cisneros$1K to $15KHousetraded Sep 29, disclosed Oct 12(13 days later)

See what Congress is buying across the market

ALGM's officers and directors

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

9 more officers and directors file at ALGM. Each page above names the rest.

See insider trades by person

Which ETFs hold ALGM?

In ETFs: ALGM is under 0.1% of FTEC, under 0.1% of VGT, and under 0.1% of VTI, the most of the 24 funds Breakaway covers, by each fund's latest filing, Jun 30 to Aug 31, 2026.

About Allegro MicroSystems

Allegro Microsystems Inc is a designer, developer, fabless manufacturer, and marketer of sensor ICs and application-specific analog power ICs for automotive and industrial markets. Its Sensor IC allows customers to precisely measure motion, speed, position, and current, and Power ICs include high-temperature and high-voltage capable motor drivers, power management, and LED driver ICs. Its products are divided into three categories: SENSE, which includes Current Sensors, Switches, and Latches, and Interface ICs among others; REGULATE, which includes Regulators, ClearPower Modules, and LED Drivers; and DRIVE, which includes BLDC Drivers, Brush DC, and others. Product-wise, the firm derives the majority of its revenue from sales of Magnetic sensors.

4,250 employeesManchester, NHallegromicro.com

What Allegro MicroSystems says it competes with

“The semiconductor industry, particularly the market for high-performance analog mixed-signal semiconductors, is highly competitive.”

From its annual report, SEC filing · May 21, 2026

2 more sentences, what it says it does, and its sales by region, for Pro membersGet in free →

ALGM's score card

Allegro MicroSystems (ALGM): Quality Score 6, Average, #27 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 ALGM's score around: 5 things
  • 2 more filings explained, a plain line each
  • Real-⁠time prices, no delay
BreakawayOct 12Gilbert Cisneros bought ALGM$1K to $15K, disclosed Oct 12

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See ALGM's 14 chart checks

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Straight Answers

As of Nov 2, 2026: ALGM's Quality Score is 6 (Average), #27 of 84 in Semiconductors. Insiders sold $3.6M in the last 6 months (Form 4).

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

ALGM scores 6 today, which Breakaway calls Average. It is #27 of 84 in Semiconductors by Quality Score, with 1 of 14 chart checks firing. Down 7% on Oct 29 while the S&P 500 fell 0.4%. 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 ALGM's Quality Score?

ALGM scores 6 today, which Breakaway calls Average (6 to 10). That is #27 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 ALGM's 6.

Are insiders buying ALGM?

9 insiders sold $3.6M across 9 filings in the last 6 months. No open-⁠market buys on record. The newest is Jennie Raubacher, Director, who sold $45K on Aug 17. 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.

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