Oruka Therapeutics (ORKA) Options Chain

NASDAQ: ORKAHealth CareBiotechnology: In Vitro & In Vivo Diagnostic SubstancesUSD

82.11+4.83 (+6.25%)

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

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 68
Share price: $82.11
Put/call ratio (OI): 3.18
Put/call ratio (volume): 4.19
ATM implied volatility: 75.9%
Expected move: ±$26.89
Open interest (C / P): 152 / 484

ORKA options summary

The ORKA options chain for the December 18, 2026 expiration lists 26 call and 15 put contracts, with 68 days until expiration. Open interest stands at 152 calls and 484 puts, a put/call ratio of 3.18, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $80.00 strike is 75.9%, which implies the market expects a move of about ±$26.89 (32.7%) in Oruka Therapeutics stock by expiration.

The most open interest sits at the $40.00 call (60 contracts) and the $75.00 put (335 contracts).

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

ORKA options chain · December 18, 2026

ORKA 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
0	9	—	44.05	0.00	0.00	15.00	—	—	—	—	—	—
0	—	—	31.50	0.00	0.00	17.50	0.00	4.00	2.55	281.1%	—	1
0	4	—	29.60	0.00	0.00	20.00	—	—	—	—	—	—
1	1	—	22.50	49.40	53.50	22.50	0.00	0.00	6.30	50.0%	—	0
4	2	—	17.60	14.50	19.00	25.00	—	—	—	—	—	—
2	1	—	37.10	33.00	37.90	30.00	—	—	—	—	—	—
—	—	—	—	—	—	35.00	0.00	0.00	4.95	50.0%	—	0
60	1	—	38.00	27.50	32.30	40.00	0.00	4.90	2.20	149.7%	70	38
11	2	—	44.95	24.50	29.30	45.00	0.00	4.90	2.00	129.7%	1	3
0	1	—	19.00	0.00	0.00	50.00	0.00	0.00	22.25	25.0%	—	0
5	5	73.0%	42.81	26.00	30.30	55.00	—	—	—	—	—	—
20	1	293.0%	38.50	43.50	48.00	60.00	0.00	0.00	16.30	12.5%	—	0
0	16	—	14.10	0.00	0.00	65.00	15.30	20.00	18.70	205.8%	5	5
8	3	64.4%	17.20	13.50	18.20	70.00	16.50	20.90	22.20	189.7%	13	24
10	1	69.5%	11.74	11.00	15.80	75.00	4.00	8.40	7.60	68.8%	150	335
5	—	84.5%	17.30	11.00	14.80	80.00	6.30	10.50	8.83	67.2%	1	4
ORKA $82.11
2	2	66.0%	6.07	6.00	10.30	85.00	8.70	13.50	9.10	66.4%	—	1
—	—	—	—	—	—	90.00	11.80	16.40	17.50	64.9%	1	67
2	1	64.7%	6.32	2.50	7.00	95.00	37.10	41.50	29.00	219.7%	—	1
0	1	63.3%	0.20	1.50	5.40	100.00	19.00	23.50	15.13	62.6%	2	5
2	1	66.9%	4.20	0.55	5.40	105.00	—	—	—	—	—	—
1	1	69.3%	3.50	0.10	4.90	110.00	—	—	—	—	—	—
3	1	74.9%	2.60	0.00	4.90	115.00	—	—	—	—	—	—
10	2	80.6%	2.50	0.00	4.90	120.00	—	—	—	—	—	—
3	1	86.0%	1.70	0.00	4.90	125.00	—	—	—	—	—	—
1	—	95.7%	1.20	0.00	4.90	135.00	—	—	—	—	—	—
1	1	108.5%	4.65	0.00	4.90	150.00	—	—	—	—	—	—
1	—	119.5%	2.65	0.00	4.90	165.00	—	—	—	—	—	—

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 ORKA put/call ratio?

For the December 18, 2026 expiration, the ORKA put/call ratio based on open interest is 3.18 (484 puts vs 152 calls), and 4.19 based on today's volume. A ratio above 1 means more puts than calls.

What is ORKA's implied volatility?

At-the-money implied volatility for ORKA options expiring December 18, 2026 is about 75.9%, an annualized estimate of how much the market expects Oruka Therapeutics stock to move.

How many ORKA option expiration dates are there?

ORKA has 8 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.