Glaukos (GKOS) Options Chain
NYSE: GKOSHealth CareMedical/Dental InstrumentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 17, 2027
- Days to expiration
- 432
- Share price
- $165.69
- Put/call ratio (OI)
- 0.15
- Put/call ratio (volume)
- 0.09
- Expected move
- ±$95.77
- Open interest (C / P)
- 92 / 14
GKOS options summary
The GKOS options chain for the December 17, 2027 expiration lists 12 call and 5 put contracts, with 432 days until expiration. Open interest stands at 92 calls and 14 puts, a put/call ratio of 0.15, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $165.00 strike is 53.1%, which implies the market expects a move of about ±$95.77 (57.8%) in Glaukos stock by expiration.
The most open interest sits at the $165.00 call (20 contracts) and the $125.00 put (7 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
GKOS options chain · December 17, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 100.00 | 3.50 | 8.50 | 5.00 | |||||
| — | — | — | 105.00 | 4.50 | 9.50 | 8.50 | |||||
| 55.35 | 77.50 | 81.50 | 125.00 | 17.00 | 22.00 | 29.30 | |||||
| 50.00 | 71.50 | 75.30 | 135.00 | — | — | — | |||||
| — | — | — | 140.00 | 15.30 | 20.00 | 22.92 | |||||
| 48.50 | 41.50 | 44.90 | 155.00 | 23.80 | 28.00 | 26.00 | |||||
| 25.96 | 35.50 | 40.50 | 165.00 | — | — | — | |||||
| 31.02 | 31.00 | 35.00 | 180.00 | — | — | — | |||||
| 47.70 | 29.50 | 33.10 | 185.00 | — | — | — | |||||
| 25.00 | 27.50 | 32.00 | 190.00 | — | — | — | |||||
| 25.02 | 24.50 | 28.50 | 200.00 | — | — | — | |||||
| 30.00 | 21.50 | 26.00 | 210.00 | — | — | — | |||||
| 23.60 | 33.00 | 37.50 | 220.00 | — | — | — | |||||
| 21.60 | 30.00 | 34.50 | 230.00 | — | — | — | |||||
| 15.50 | 15.00 | 19.50 | 240.00 | — | — | — | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the GKOS put/call ratio?
For the December 17, 2027 expiration, the GKOS put/call ratio based on open interest is 0.15 (14 puts vs 92 calls), and 0.09 based on today's volume. A ratio above 1 means more puts than calls.
What is GKOS's implied volatility?
At-the-money implied volatility for GKOS options expiring December 17, 2027 is about 53.1%, an annualized estimate of how much the market expects Glaukos stock to move.
How many GKOS option expiration dates are there?
GKOS has 6 listed expiration dates, from Oct 16, 2026 to Dec 17, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.