Arrowhead Pharmaceuticals (ARWR) Options Chain

NASDAQ: ARWRHealth CareBiotechnology: Pharmaceutical PreparationsUSD

62.75+2.01 (+3.31%)

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

Expiration date

Expiration: Nov 20, 2026
Days to expiration: 40
Share price: $62.75
Put/call ratio (OI): 0.72
Put/call ratio (volume): 1.24
ATM implied volatility: 52.3%
Expected move: ±$10.86
Open interest (C / P): 3.96K / 2.85K

ARWR options summary

The ARWR options chain for the November 20, 2026 expiration lists 12 call and 12 put contracts, with 40 days until expiration. Open interest stands at 3,958 calls and 2,849 puts, a put/call ratio of 0.72, which is fairly balanced between calls and puts. At-the-money implied volatility near the $62.50 strike is 52.3%, which implies the market expects a move of about ±$10.86 (17.3%) in Arrowhead Pharmaceuticals stock by expiration.

The most open interest sits at the $80.00 call (1.52K contracts) and the $60.00 put (1.05K contracts).

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

ARWR options chain · November 20, 2026

ARWR 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
1	—	66.1%	18.50	13.80	17.90	47.50	—	—	—	—	—	—
—	—	—	—	—	—	50.00	0.00	2.75	0.83	74.5%	4	114
—	—	—	—	—	—	55.00	0.85	2.30	1.45	56.1%	36	54
—	—	—	—	—	—	57.50	1.00	3.50	2.20	54.6%	130	34
133	21	57.3%	6.20	4.30	8.10	60.00	1.60	4.90	4.51	54.8%	47	1,051
—	—	—	—	—	—	62.50	2.20	6.30	2.20	52.3%	3	46
ARWR $62.75
1,148	7	54.7%	3.56	1.55	5.70	65.00	3.80	7.30	6.80	50.8%	1	654
19	4	55.3%	2.55	1.40	4.20	67.50	5.10	9.10	7.95	74.3%	1	8
797	17	55.3%	2.30	0.80	3.40	70.00	6.90	10.00	10.47	63.9%	1	625
10	3	56.7%	1.60	0.65	2.65	72.50	9.10	13.00	8.90	51.4%	—	3
93	326	55.1%	1.11	0.30	1.95	75.00	11.40	15.10	15.20	52.9%	6	106
1,525	3	58.1%	0.56	0.40	1.00	80.00	15.80	19.60	20.00	51.8%	100	59
2	1	72.6%	0.85	0.00	1.80	85.00	20.60	24.30	24.80	51.6%	229	95
82	10	60.4%	0.12	0.10	0.35	90.00	—	—	—	—	—	—
66	1	94.9%	0.75	0.00	2.20	95.00	—	—	—	—	—	—
82	58	102.3%	0.30	0.00	2.15	100.00	—	—	—	—	—	—

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 ARWR put/call ratio?

For the November 20, 2026 expiration, the ARWR put/call ratio based on open interest is 0.72 (2,849 puts vs 3,958 calls), and 1.24 based on today's volume. A ratio above 1 means more puts than calls.

What is ARWR's implied volatility?

At-the-money implied volatility for ARWR options expiring November 20, 2026 is about 52.3%, an annualized estimate of how much the market expects Arrowhead Pharmaceuticals stock to move.

How many ARWR option expiration dates are there?

ARWR has 8 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

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.