Glaukos (GKOS) logo

Glaukos (GKOS) stock

Eye treatments , market cap $14B

After-hours
$234.02
+0.42%

Close $233.04 -2.33%

As of 6:57 PM ET after-hours, delayed 15+ min · Live for Pro members

Quality Score
16
Excellent
In its industry
#4of 85

GKOS's Quality Score rose 2 points on Tue, Nov 3, to 16.

See GKOS's 14 chart checksSee it live, free until Thursday morning. No account. No card. Then keep going with a free account.

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Why is GKOS up?

Up 34% on Oct 29, and still 32% over its Oct 28 close.

  • Its Oct 28 results: record net sales were $211.0M, up 58%; U.S. Glaucoma record net sales were $118.6M, up 47%. It rose 34% on Oct 29.

Sources: Price history, Oct 29, 2026; Company release, Oct 28, 2026

1 more reason, free with an account →2 more reasons why GKOS rose on Oct 29, from its filings, with how the business stands, the timeline, and its peers, for Pro members.

Key facts on GKOS

Key facts on GKOS
SalesUp 22% a year for 3 years vs 5% for its peers
Latest filing8-K, Oct 28 Reported its quarterly results
1 more reason behind GKOS's 16, free with an account →6 more reasons behind GKOS's 16, for Pro members.

GKOS in the news

Thu Oct 29Glaukos Announces Third Quarter 2026 Financial Results SEC filing 4:10 PM ET · Business Wire and 13 more GKOS closed +33.6% that day.

What's next

Tue Nov 10: Stifel Healthcare Conference 2026Investor conference · date confirmed.

3 more dates ahead: conferences, for Pro members.

GKOS catalysts

Coming up

After its last 4 reports it closed +18.6% on average, higher 4 of 4 times.

32 past catalysts since 2018, with sizes and sources, for Pro members.Get in free →

Why GKOS scores 16

Excellentfor quality, not price, 6 of 14 chart checks firingWhat the Quality Score means

Well above its recent run. GKOS scores 16 today, against a median of 9.5 over its last 20 recorded sessions.

  • +6Chart checks 6 of 14 firing right now, one point each
  • +4Long-term trend above a rising 200-⁠day average, near its 52-⁠week high, at a multi-⁠year high
  • Run-up adds
  • Size adds
  • Profit subtractsRead on the last four quarters against the four before, or the last full year where no quarters are filed.
  • Growth addsSales and margins against a year earlier: up to +3 for fast growth and widening margins, down to -2 when both shrink.
  • Cash flow subtracts-1 when free cash flow over the last four quarters is negative.
  • Persistence adds
  • News adds

No effect today: Dilution, Volatility, and Insider trades.

What every line is worth, and the reason behind it, on GKOS and every other stock.Get in free →

Price, score, chart checks, and the industry rank are from a snapshot taken at 6:57 PM ET, at least 15 minutes behind. How we rank stocks.

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

Alert me when GKOS's Quality Score turns up

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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 GKOS 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.

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    Every stock a box, colored by its Quality Score.

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GKOS has 6 of 14 chart checks firing

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

GKOS RSI today: 77.5, above 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.

  • RSI 1477.5

    70 or above.

  • MACD (12, 26, 9)Above signal

    Crossed above its signal line 22 sessions ago.

  • The price is 32.9% above it.

  • The price is 63.4% above it.

  • 50/200 crossGolden cross

    The 50-day crossed above the 200-day on Dec 19, 2025.

  • ADX 1433.0

    25 or more, with +DI above -DI.

  • Support$175.04

    Swing low from Aug 18, 24.9% below the price.

  • Resistance$248.75

    No swing high over the price in the last year. This is the 52-week high, 6.7% above.

  • From Oct 30, 6.7% above the price.

  • From Nov 7, 2025, 65.3% below the price.

  • No triangle, channel, or wedge in the last year.

  • The bands run from $130.41 to $239.23.

  • Volume7.5x

    Against its 20-day average, for the time of day.

The deep dive on GKOS

10 more findings on GKOS, each with its source, for Pro membersGet in free →

How GKOS ranks in Medical Devices

GKOS is #4 of 85 by Quality Score.

How GKOS ranks in Medical Devices
4Glaukos (GKOS) logoGKOSGlaukos16

Share count against a year before: GKOS +2.8%, HAE -5.7%.

More in Medical Devices

When does GKOS report earnings, and what happens after?

Expected to report Tue Feb 16, after the close (in 105 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 GKOS reported on Oct 28, 2026

The quarter

Sales of $211.0M, 58% more than a year ago; a profit of $0.03 a share, from a loss of $0.28.

“Our third quarter record results reflect a sustained growth acceleration in our business with the strong performance driven by growing iDose® TR adoption and utilization, along with our broader Interventional Glaucoma, or IG, initiatives globally, as well as growing contributions of Epioxa®.”

The quarter that ended Sep 30, from the company's press release

The press releaseThe filing on EDGAR

Where the sales came from

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

The outlook

The outlook the company gave, by period
MeasureFigure
FY 2026
Net sales$775M to $785Mraised

Figures as filed (SEC filing, Oct 28)

1 more outlook line, for Pro members.

The numbers

Market value
$14B
today
Sales
$613M
up 41.5% on the year
Free cash flow
-$12.2M
last 12 months

Sales grew 18% a year over 5 years, fiscal 2020 to 2025.

Its share count grew 5.1% a year over 5 years.

3 more figures, for Pro members.

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

The whole report on GKOS: 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 28, 2026After close+16.3%+33.6%open
Jul 29, 2026After close+11.5%+4.2%+5.7%
Apr 29, 2026After close+21.0%+22.8%+15.7%

GKOS closed higher after 4 of its last 4 reports.

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

GKOS sales and profit by year

Sales and profit by year

Sales grew in five of the last seven years, to $507M in 2025. It made a profit in one of the eight years.

Insiders trading GKOS

GKOS insider trades

4 insiders sold $15.2M across 9 filings in the last 6 months. No open-⁠market buys on record. The newest:

SellTomas Navratil$1.4MChief Development Officerat $180.25 on Aug 28, filed Sep 1
All 9 insider filings on GKOS from the last six months, for Pro members.Get in free →

All GKOS insider trades

GKOS trades by Congress and the executive branch

3 trades disclosed in the last six months. The newest:

SellDonald Trump$50K to $100KPresident (R)traded Jul 29, disclosed Sep 22(55 days later)
All 3 trades on GKOS disclosed by Congress and the executive branch, for Pro members.Get in free →

See what Congress is buying across the market

GKOS's officers and directors

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

3 more officers and directors file at GKOS. Each page above names the rest.

See insider trades by person

Which ETFs hold GKOS?

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

About Glaukos

Glaukos Corp is an ophthalmic pharmaceutical and medical technology company focused on developing novel, dropless therapies and commercializing associated products for the treatment of glaucoma, corneal disorders, and retinal diseases. It has commenced commercialization activities for iDose TR, a first-of-its-kind, long-duration, intracameral procedural pharmaceutical implant designed to continuously deliver glaucoma drug therapy inside the eye for extended periods of time. The company also offer commercially a proprietary bio-activated pharmaceutical therapy for the treatment of a rare corneal disorder, keratoconus. The company has three primary commercialized micro-scale surgical device products designed to treat glaucoma: the iStent, the iStent inject W, and the iStent infinite.

1,094 employeesAliso Viejo, CAglaukos.com

GKOS's score card

Glaukos (GKOS): Quality Score 16, Excellent, #4 of 85 in Medical Devices, 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 move GKOS's score: 5 things
  • 2 more filings explained, a plain line each
  • Real-⁠time prices, no delay
BreakawayAug 22Donald Trump bought GKOS$1K to $15K, disclosed Aug 22

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See GKOS's 14 chart checks

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Straight Answers

As of Nov 3, 2026: GKOS's Quality Score is 16 (Excellent), #4 of 85 in Medical Devices. Insiders sold $15.2M in the last 6 months (Form 4).

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

GKOS scores 16 today, which Breakaway calls Excellent. It is #4 of 85 in Medical Devices by Quality Score, with 6 of 14 chart checks firing. Up 34% on Oct 29, and still 32% over its Oct 28 close. 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 GKOS's Quality Score?

GKOS scores 16 today, which Breakaway calls Excellent (15 to 19). That is #4 of 85 in Medical Devices 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 GKOS's 16.

Are insiders buying GKOS?

4 insiders sold $15.2M across 9 filings in the last 6 months. No open-⁠market buys on record. The newest is Tomas Navratil, Chief Development Officer, who sold $1.4M on Aug 28. 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.

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