GKOS

Glaukos Corporation
NYSEUSDEQUITY Healthcare DELAYED
Last price
161.59
▼ 2.42 (1.48%)
MARKET · —

Price

1D — H — L — Range — Vol —
Drag pan · Pinch zoom · Hold crosshair · pick a tool then drag to draw
Open
164.00
Prev close
164.01
Day high
164.00
Day low
160.58
Volume
664.41K
Market cap
$9.53B
P/E (TTM)
—
52W range
73.16 – 191.62

Day trading desk

Current session · delayed
Gap from prior close
+0.15%
Prior close 163.75
VWAP
161.84
-0.16% from price
Relative volume
1.35×
Normal
Session range
3.75%
160.30 – 166.31
Position in range
21%
Near session low
ATR (14D)
6.49
4.02% of price
Prior day high
168.08
PDH
Prior day low
163.01
PDL
Bid / ask spread
—
Quote not published
Session volume
1.07M
Avg 792.63K

VWAP and the session figures are computed from the delayed intraday series on this page, so they lag the live tape and will not match a broker's real-time VWAP exactly. Turn on Prior day H/L/C, Opening range and Volume profile in the chart's Studies menu to see these levels drawn on price.

Trailing performance

Price return · vs SPY
Returnvs SPY
1W
+3.44% +1.5%
1M
-9.06% -10.2%
3M
+8.87% +4.3%
6M
+40.55% +22.4%
YTD
+45.26% +31.0%
1Y
+94.12% +77.7%
3Y
+115.24% +33.0%
5Y
— —

Price return only. Dividends are not reinvested, so total return on a dividend payer will be higher than shown.

Unusual options activity

Account required
Nothing crossed the thresholds in the expiries we scanned.
That is the normal state — most contracts trade well inside their existing open interest.
Free account required

Contracts trading at or above their open interest, ranked by notional and where the print landed.

Free account

5 more panels on GKOS open with an account.

Options chains and analytics, valuation ratios, insider filings, analyst targets and ownership. No card, no trial, nothing to cancel.

Insider net activity

6m · Form 4 rollup
Net shares
-211
Net selling
Buy transactions
24
173.79K shares
Sell transactions
17
174.00K shares
Net transactions
+41
Buys less sells
Sell : buy shares
1.0 : 1
Mixed
Insider-held shares
2.11M
Total on file
Bought 173.79KSold 174.00K

Insider transactions

Account required
DateInsiderAction SharesValueHeld
Sep 25, 26
NAVRATIL TOMAS
Officer
SELL 1.61K $249.16K Direct
Aug 28, 26
NAVRATIL TOMAS
Officer
SELL 13.74K $2.48M Direct
Aug 19, 26
KLIMAN GILBERT H.
Director
SELL 2.50K $475.00K Direct
Aug 19, 26
KLIMAN GILBERT H.
Director
CONVERSION 2.50K $64.42K Direct
Aug 11, 26
GILLIAM JOSEPH E.
President
SELL 60.00K $10.78M Direct
Aug 11, 26
GILLIAM JOSEPH E.
President
CONVERSION 60.00K $3.18M Direct
Aug 7, 26
THURMAN ALEX R.
Chief Financial Officer
SELL 20.00K $3.60M Direct
Aug 7, 26
THURMAN ALEX R.
Chief Financial Officer
CONVERSION 20.00K $676.20K Direct
Jul 31, 26
WEN LEANA
Director
SELL 525 $88.01K Direct
Jul 16, 26
THURMAN ALEX R.
Chief Financial Officer
SELL 10.00K $1.60M Direct
Jul 16, 26
THURMAN ALEX R.
Chief Financial Officer
CONVERSION 10.00K $386.80K Direct
Jul 9, 26
THURMAN ALEX R.
Chief Financial Officer
SELL 10.00K $1.55M Direct
Jul 9, 26
THURMAN ALEX R.
Chief Financial Officer
CONVERSION 10.00K $386.80K Direct
Jul 6, 26
THURMAN ALEX R.
Chief Financial Officer
SELL 10.00K $1.50M Direct
What this is, and what it is not

These are SEC Form 4 filings — officers, directors and 10% owners reporting their own trades in the company's stock. Filing is due within two business days of the transaction, so this lags reality by days, and the provider adds its own lag on top.

A sale is not automatically bearish. Executives sell on scheduled 10b5-1 plans, to cover tax on vesting equity, and to diversify. Purchases with cash are generally the more informative signal, and they are far rarer.

This does not include congressional or senate trading. That comes from STOCK Act disclosures filed with the Senate eFD system and the House Clerk, which this data source does not carry.

Free account required

Officer and director trades in their own stock, straight from Form 4 filings.

Insider holders

10 reporting
NameRelationShares heldLatest
BURNS THOMAS WILLIAM
Chief Executive Officer 1.77M Stock Gift
FOLEY MARK J
Director 60.27K Stock Award(Grant)
GILLIAM JOSEPH E.
President 72.59K Sale
HOFFMEISTER DAVID F
Director 87.72K Stock Award(Grant)
KLIMAN GILBERT H.
Director 37.41K Sale
NAVRATIL TOMAS
Officer 70.82K Sale
STAPLEY MARC A
Director 39.33K Stock Award(Grant)
THURMAN ALEX R.
Chief Financial Officer 43.91K Sale
TORRES DENICE
Director 24.21K Stock Award(Grant)
WEISNER AIMEE S
Director 52.19K Stock Award(Grant)

Fundamentals

TTM · reported
Market cap$9.53B
Enterprise value$9.35B
Revenue (TTM)$612.84M
Gross profit$484.88M
EBITDA$-37.02M
Net income$-188.05M
EPS (TTM)$-3.26
Free cash flow$15.46M
Total cash$286.23M
Total debt$107.60M
Book value / share$11.60
Shares outstanding58.98M
Float56.83M
Short % of float8.55%
Dividend yield0.00%
Beta (5Y)0.70

Valuation & profitability ratios

Account required
Trailing P/E—
Forward P/E308.64
PEG ratio—
Price / sales—
Price / book13.94
EV / revenue15.25
EV / EBITDA-252.48
Gross margin79.12%
Operating margin-8.49%
Profit margin-30.69%
Return on equity-25.98%
Return on assets-5.18%
Debt / equity15.77
Current ratio5.04
Free account required

Fourteen ratios including P/E, PEG, EV/EBITDA, margins and return on equity.

Financial statements

As reported · 5 years · 5 quarters
Blank means not reported, not zero
Line item2025202420232022YoY
Total revenue $507.44M$383.48M$314.71M$282.86M +32.3%
Operating revenue $507.44M$383.48M$314.71M$282.86M +32.3%
Cost of revenue $224.68M$94.03M$75.58M$68.98M +139.0%
Gross profit $282.76M$289.45M$239.14M$213.88M -2.3%
Research & development $150.61M$136.43M$138.77M$123.27M +10.4%
Selling, general & admin $331.75M$261.17M$224.07M$192.93M +27.0%
Total operating expense $482.36M$397.59M$362.84M$316.20M +21.3%
Operating income -$199.60M-$108.14M-$123.70M-$102.31M -84.6%
Net interest income $6.08M$1.06M-$4.47M-$11.35M +470.8%
Pre-tax income -$193.04M-$145.60M-$133.73M-$98.43M -32.6%
Tax provision -$5.35M$771.00K$934.00K$766.00K -794.0%
Net income -$187.69M-$146.37M-$134.66M-$99.19M -28.2%
Net income to common -$187.69M-$146.37M-$134.66M-$99.19M -28.2%
Basic EPS -3.28-2.77-2.78-2.09 -18.4%
Diluted EPS -3.28-2.77-2.78-2.09 -18.4%
EBIT -$188.41M-$135.56M-$120.09M-$84.71M -39.0%
EBITDA -$146.06M-$95.64M-$82.12M-$48.76M -52.7%
Basic shares 57.19M52.76M48.43M47.44M +8.4%
Diluted shares 57.19M52.76M48.43M47.44M +8.4%

Options analytics

Account required
Put / call volume
2.20
Put-heavy session
Put / call open interest
1.80
Positioning, not flow
Max pain
160.00
-1.0% from spot
ATM implied vol
63.4%
Nearest strike to spot
Skew (10% OTM)
-1.2%
Calls bid over puts
Call volume
207
Contracts, this expiry
Put volume
456
Contracts, this expiry
Heaviest call OI
160.00
1.17K contracts
Heaviest put OI
140.00
1.27K contracts

Max pain is the strike at which the largest dollar value of open contracts expires worthless. It describes current positioning; it is not a forecast and it moves as open interest changes.

Free account required

Put/call ratios, max pain, implied volatility skew and where open interest is concentrated.

Earnings

History & consensus estimates
Reported vs expected · EPS
QuarterEst.ActualSurprise
Jun 2026 -0.21-0.14 +33.5%
Mar 2026 -0.28-0.18 +35.9%
Dec 2025 -0.20-0.28 -43.2%
Sep 2025 -0.26-0.16 +38.9%
Forward consensus
PeriodEPSAnalystsRevenueGrowth
Current quarter -0.09 13 $167.91M +25.7%
Next quarter 0.11 13 $186.98M +30.6%
Current year -0.29 13 $691.01M +36.2%
Next year 0.52 13 $850.24M +23.0%

Analyst targets & ownership

Account required
Mean target$198.69
High target$225.00
Low target$172.00
Implied upside22.96%
Analyst count13
ConsensusSTRONG BUY
Strong buy / Buy3 / 10
Hold1
Sell / Strong sell0 / 0
Held by insiders3.58%
Held by institutions105.07%
Institutions holding498
Free account required

Price targets, consensus spread, insider and institutional ownership.

Moving averages & technicals

Computed from 2Y daily closes
SMA 10
159.49
+1.32% from price
SMA 20
164.52
-0.31% from price
SMA 50
172.20
-4.76% from price
SMA 100
154.25
+4.76% from price
SMA 200
135.28
+21.23% from price
EMA 12
162.54
-0.58% from price
EMA 26
165.70
-2.48% from price
EMA 50
165.14
-2.15% from price
RSI (14)
47.3
Neutral
MACD (12,26,9)
-3.16
Hist 0.51
ATR (14)
6.49
3.96% of price
Realised vol 30D
34.5%
Annualised
Bollinger upper
180.16
20, 2σ
Bollinger lower
148.88
20, 2σ
50 / 200 cross
Golden
172.20 vs 135.28
Trend bias
Above 200
+21.23%

Options chain

Account required
Expiry
Spot 161.59
Calls
StrikeLastBidAskVolOIIV
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
Puts
StrikeLastBidAskVolOIIV
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
Free account required

Every listed expiry, both sides of the book, with volume, open interest and implied volatility.

Risk profile

Daily returns · 1Y window
Beta vs SPY
-0.25
Less volatile than market
Correlation to SPY
-0.06
Largely independent
Realised vol 30D
34.5%
Annualised
Market vol 1Y
13.0%
SPY, annualised
Max drawdown 1Y
-28.4%
Peak to trough
Max drawdown 5Y
-53.7%
Peak to trough
ATR 14
6.49
3.96% of price
Beta (reported)
0.70
5Y monthly, from filing

Short interest

Semi-monthly exchange report · lags by ~2 weeks
Shares short
4.17M
Prior 3.95M
Change vs prior
+5.4%
Shorts adding
% of float
8.55%
Normal
% of shares out
7.06%
Against total outstanding
Days to cover
6.4
Crowded exit
Float
56.83M
Freely tradeable shares

Exchanges publish short interest twice a month with a settlement lag, so this is roughly two weeks behind. Days to cover divides shares short by average daily volume — it estimates how long covering would take, not whether it will happen.

Rating changes

207 on file
DateFirm ActionFromTo
Sep 22, 26 Jefferies MAINTAINED Buy Buy
Aug 20, 26 BTIG MAINTAINED Buy Buy
Jul 30, 26 UBS MAINTAINED Neutral Neutral
Jul 30, 26 HC Wainwright & Co. MAINTAINED Buy Buy
Jul 30, 26 Citigroup MAINTAINED Buy Buy
Jul 30, 26 Piper Sandler MAINTAINED Overweight Overweight
Jul 30, 26 Jefferies MAINTAINED Buy Buy
Jul 30, 26 Stifel MAINTAINED Buy Buy
Jul 30, 26 Truist Securities MAINTAINED Buy Buy
Jul 30, 26 Wells Fargo MAINTAINED Overweight Overweight
Jul 30, 26 Needham MAINTAINED Buy Buy
Jul 30, 26 BTIG MAINTAINED Buy Buy

Dividends & splits

Declared · from the issuer
Forward rate—
Forward yield0.00%
5-year avg yield—
Payout ratio0.00%
Ex-dividend date—
Next pay date—
Last split—
Split date—

PRIVATE STRATEGY · BY QUALIFICATION

The same data. A different seat.

The research you are reading is the input layer for a discretionary options program we run for a small number of qualified investors. Minimum $1,000,000.