Krystal Biotech (KRYS) Options Chain

NASDAQ: KRYSHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD

331.61+4.31 (+1.32%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Mar 19, 2027
Days to expiration: 159
Share price: $331.61
Put/call ratio (OI): 3.42
Put/call ratio (volume): 4.08
ATM implied volatility: 54.1%
Expected move: ±$118.32
Open interest (C / P): 266 / 910

KRYS options summary

The KRYS options chain for the March 19, 2027 expiration lists 27 call and 6 put contracts, with 159 days until expiration. Open interest stands at 266 calls and 910 puts, a put/call ratio of 3.42, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $330.00 strike is 54.1%, which implies the market expects a move of about ±$118.32 (35.7%) in Krystal Biotech stock by expiration.

The most open interest sits at the $480.00 call (68 contracts) and the $290.00 put (850 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

KRYS options chain · March 19, 2027

KRYS calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
3	1	69.2%	155.30	145.70	149.80	190.00	—	—	—	—	—	—
1	1	96.9%	179.80	149.00	153.60	200.00	—	—	—	—	—	—
1	—	112.3%	128.40	139.50	143.10	230.00	—	—	—	—	—	—
2	5	104.1%	84.90	123.50	127.30	250.00	—	—	—	—	—	—
1	—	100.7%	107.40	116.00	119.80	260.00	11.00	14.90	17.30	53.2%	—	1
1	—	57.8%	113.20	81.00	84.60	270.00	0.00	0.00	17.10	6.3%	3	0
2	—	94.8%	70.60	102.00	105.60	280.00	17.50	21.00	31.50	52.2%	—	2
—	—	—	—	—	—	290.00	20.50	24.30	23.00	51.3%	300	850
3	1	55.8%	100.80	62.00	65.60	300.00	24.50	28.10	29.20	50.7%	3	54
4	2	55.0%	61.00	56.00	59.80	310.00	28.50	32.30	33.90	50.1%	—	3
8	1	54.6%	71.90	51.00	54.50	320.00	—	—	—	—	—	—
50	50	54.1%	71.35	46.00	49.60	330.00	—	—	—	—	—	—
KRYS $331.61
1	2	53.4%	55.78	41.00	45.00	340.00	—	—	—	—	—	—
0	1	1.6%	52.30	0.00	0.00	350.00	—	—	—	—	—	—
2	—	52.7%	50.50	33.00	37.00	360.00	—	—	—	—	—	—
2	1	52.1%	29.78	29.00	33.40	370.00	—	—	—	—	—	—
15	1	51.8%	56.10	26.00	30.00	380.00	—	—	—	—	—	—
18	1	50.9%	31.30	20.00	24.10	400.00	—	—	—	—	—	—
1	—	50.6%	40.20	17.50	21.60	410.00	—	—	—	—	—	—
16	1	52.2%	12.70	9.50	13.70	450.00	—	—	—	—	—	—
0	1	12.5%	15.00	0.00	0.00	460.00	—	—	—	—	—	—
20	1	69.8%	29.20	21.40	25.30	470.00	—	—	—	—	—	—
68	—	63.9%	14.50	15.50	19.60	480.00	—	—	—	—	—	—
3	1	52.3%	17.50	4.70	9.00	490.00	—	—	—	—	—	—
11	1	52.2%	16.80	3.80	8.00	500.00	—	—	—	—	—	—
5	2	52.3%	16.90	2.30	6.50	520.00	—	—	—	—	—	—
27	1	65.8%	5.10	10.00	14.00	540.00	—	—	—	—	—	—
1	—	64.7%	3.80	7.90	11.50	560.00	—	—	—	—	—	—

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 KRYS put/call ratio?

For the March 19, 2027 expiration, the KRYS put/call ratio based on open interest is 3.42 (910 puts vs 266 calls), and 4.08 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 March 19, 2027 is about 54.1%, 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.