Krystal Biotech (KRYS) Options Chain
NASDAQ: KRYSHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
Market open · Delayed 15 min · as of Oct 9, 12:04 PM ET
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $330.34
- Put/call ratio (OI)
- 0.40
- Put/call ratio (volume)
- 0.19
- Expected move
- ±$20.06
- Open interest (C / P)
- 1.13K / 447
KRYS options summary
The KRYS options chain for the October 16, 2026 expiration lists 15 call and 11 put contracts, with 7 days until expiration. Open interest stands at 1,127 calls and 447 puts, a put/call ratio of 0.40, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $330.00 strike is 43.8%, which implies the market expects a move of about ±$20.06 (6.1%) in Krystal Biotech stock by expiration.
The most open interest sits at the $350.00 call (528 contracts) and the $320.00 put (210 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
KRYS options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 200.00 | 0.00 | 3.40 | 2.50 | |||||
| 100.00 | 89.20 | 93.10 | 240.00 | — | — | — | |||||
| — | — | — | 280.00 | 0.00 | 3.50 | 1.31 | |||||
| — | — | — | 290.00 | 0.00 | 1.75 | 1.47 | |||||
| 40.52 | 29.00 | 32.90 | 300.00 | 0.00 | 3.70 | 2.15 | |||||
| — | — | — | 310.00 | 0.00 | 4.00 | 3.30 | |||||
| 24.72 | 11.90 | 15.60 | 320.00 | 2.50 | 4.70 | 6.60 | |||||
| 9.03 | 6.20 | 8.20 | 330.00 | 5.70 | 8.90 | 10.80 | |||||
| 4.20 | 2.70 | 4.70 | 340.00 | 11.10 | 14.50 | 19.75 | |||||
| 3.48 | 0.00 | 4.00 | 350.00 | 18.90 | 23.00 | 15.50 | |||||
| 1.98 | 0.00 | 3.70 | 360.00 | — | — | — | |||||
| 4.20 | 0.00 | 3.60 | 370.00 | 38.30 | 41.90 | 26.50 | |||||
| 1.60 | 0.00 | 3.60 | 380.00 | — | — | — | |||||
| 0.29 | 0.00 | 3.50 | 390.00 | — | — | — | |||||
| 0.24 | 0.05 | 0.10 | 400.00 | — | — | — | |||||
| 1.65 | 0.00 | 3.50 | 410.00 | — | — | — | |||||
| 0.83 | 0.00 | 3.50 | 420.00 | — | — | — | |||||
| 3.90 | 0.00 | 3.50 | 430.00 | — | — | — | |||||
| 1.32 | 0.00 | 3.50 | 440.00 | — | — | — | |||||
| — | — | — | 450.00 | 118.20 | 121.60 | 100.50 | |||||
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 KRYS put/call ratio?
For the October 16, 2026 expiration, the KRYS put/call ratio based on open interest is 0.40 (447 puts vs 1,127 calls), and 0.19 based on today's volume. A ratio above 1 means more puts than calls.
What is KRYS's implied volatility?
At-the-money implied volatility for KRYS options expiring October 16, 2026 is about 43.8%, an annualized estimate of how much the market expects Krystal Biotech stock to move.
How many KRYS option expiration dates are there?
KRYS has 6 listed expiration dates, from Oct 16, 2026 to Jun 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.