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: Jan 21, 2028
Days to expiration: 467
Share price: $62.75
Put/call ratio (OI): 0.54
Put/call ratio (volume): 0.41
ATM implied volatility: 100.1%
Expected move: ±$71.05
Open interest (C / P): 2.18K / 1.18K

ARWR options summary

The ARWR options chain for the January 21, 2028 expiration lists 40 call and 17 put contracts, with 467 days until expiration. Open interest stands at 2,176 calls and 1,180 puts, a put/call ratio of 0.54, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $62.50 strike is 100.1%, which implies the market expects a move of about ±$71.05 (113.2%) in Arrowhead Pharmaceuticals stock by expiration.

The most open interest sits at the $70.00 call (923 contracts) and the $70.00 put (950 contracts).

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

ARWR options chain · January 21, 2028

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
8	1	94.5%	47.00	46.50	51.50	15.00	—	—	—	—	—	—
0	1	254.2%	54.56	55.50	60.50	18.00	—	—	—	—	—	—
47	10	—	61.00	66.50	71.50	20.00	—	—	—	—	—	—
20	4	80.9%	43.78	39.50	44.50	23.00	0.00	0.00	3.00	25.0%	1	0
44	2	—	58.00	62.00	67.00	25.00	—	—	—	—	—	—
0	1	—	62.67	0.00	0.00	27.00	0.00	5.00	0.60	72.2%	1	0
0	1	—	59.92	0.00	0.00	30.00	1.00	6.00	5.90	73.3%	—	1
1	1	293.8%	54.75	56.00	61.00	32.00	—	—	—	—	—	—
9	2	68.2%	40.30	30.00	34.50	35.00	—	—	—	—	—	—
0	1	—	35.10	0.00	0.00	37.00	—	—	—	—	—	—
30	2	64.2%	31.00	26.00	31.00	40.00	0.00	4.50	4.10	57.0%	1	6
5	10	144.0%	36.59	39.50	44.00	42.00	—	—	—	—	—	—
0	2	—	29.85	0.00	0.00	45.00	0.60	5.50	3.78	52.2%	—	3
6	1	168.4%	44.68	41.50	46.00	50.00	1.50	6.50	4.98	47.1%	3	10
0	—	128.3%	24.75	34.00	38.00	52.50	—	—	—	—	—	—
3	2	59.7%	19.50	17.50	22.00	55.00	6.80	11.00	9.59	55.7%	5	15
1	—	112.3%	30.60	29.50	33.00	57.50	11.50	16.50	18.00	62.0%	—	1
120	3	60.1%	18.00	16.00	19.50	60.00	9.20	13.50	9.82	54.4%	10	83
1	—	100.1%	19.93	24.50	29.50	62.50	—	—	—	—	—	—
ARWR $62.75
19	1	56.4%	13.00	12.50	17.30	65.00	11.00	16.00	13.00	52.2%	2	21
1	1	56.1%	13.50	11.50	16.40	67.50	—	—	—	—	—	—
923	2	55.2%	12.50	10.50	15.30	70.00	15.20	19.00	18.28	51.1%	4	950
2	1	54.7%	11.00	9.50	14.50	72.50	24.50	29.50	26.20	73.5%	9	19
20	2	55.4%	10.69	9.00	14.00	75.00	18.00	22.00	20.54	49.3%	4	14
0	1	3.1%	29.90	0.00	0.00	77.50	12.00	17.00	19.16	23.6%	3	3
252	2	52.7%	10.07	7.50	11.40	80.00	—	—	—	—	—	—
10	2	109.2%	28.74	22.00	27.00	82.50	13.90	18.50	18.70	—	—	1
24	3	53.4%	8.70	8.00	9.00	85.00	25.60	29.00	24.00	47.0%	—	50
4	1	53.4%	15.20	5.50	10.50	87.50	17.00	22.00	22.49	—	—	3
53	1	53.3%	9.70	5.00	10.00	90.00	—	—	—	—	—	—
21	10	52.8%	9.29	4.00	9.00	95.00	—	—	—	—	—	—
86	3	52.6%	5.50	4.20	7.20	100.00	—	—	—	—	—	—
20	2	96.4%	13.80	14.50	19.50	105.00	—	—	—	—	—	—
125	3	52.1%	6.50	2.20	6.50	110.00	—	—	—	—	—	—
16	1	50.4%	5.60	1.00	6.00	115.00	—	—	—	—	—	—
34	2	61.4%	4.69	0.50	5.50	120.00	—	—	—	—	—	—
6	2	61.3%	9.50	0.10	5.00	125.00	—	—	—	—	—	—
124	13	51.3%	5.07	0.10	5.00	130.00	—	—	—	—	—	—
0	2	12.5%	10.95	0.00	0.00	135.00	—	—	—	—	—	—
141	5	54.2%	2.00	0.00	5.00	140.00	—	—	—	—	—	—

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 January 21, 2028 expiration, the ARWR put/call ratio based on open interest is 0.54 (1,180 puts vs 2,176 calls), and 0.41 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 January 21, 2028 is about 100.1%, 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.