ACADIA Pharmaceuticals (ACAD) Options Chain

NASDAQ: ACADHealth CareBiotechnology: Pharmaceutical PreparationsUSD

19.78+0.20 (+1.02%)

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

Expiration date

Expiration: Jan 15, 2027
Days to expiration: 96
Share price: $19.78
Put/call ratio (OI): 0.42
Put/call ratio (volume): 1.24
ATM implied volatility: 57.0%
Expected move: ±$5.78
Open interest (C / P): 2.28K / 967

ACAD options summary

The ACAD options chain for the January 15, 2027 expiration lists 23 call and 19 put contracts, with 96 days until expiration. Open interest stands at 2,276 calls and 967 puts, a put/call ratio of 0.42, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $20.00 strike is 57.0%, which implies the market expects a move of about ±$5.78 (29.2%) in ACADIA Pharmaceuticals stock by expiration.

The most open interest sits at the $35.00 call (405 contracts) and the $20.00 put (363 contracts).

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

ACAD options chain · January 15, 2027

ACAD 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	2	74.3%	8.70	5.20	9.20	13.00	0.00	0.00	0.75	25.0%	2	0
3	3	69.2%	5.54	4.30	8.30	14.00	0.00	0.00	0.90	12.5%	—	0
39	1	422.8%	11.30	13.00	17.10	15.00	0.00	2.25	0.42	82.6%	5	27
1	—	64.2%	7.50	2.80	6.60	16.00	—	—	—	—	—	—
—	—	—	—	—	—	17.00	0.30	1.05	0.80	57.5%	72	143
—	—	—	—	—	—	18.00	0.00	1.85	0.90	68.5%	84	121
1	1	313.2%	8.90	9.60	13.70	19.00	1.00	3.00	1.35	59.7%	29	29
ACAD $19.78
317	1	62.8%	2.30	0.80	2.45	20.00	1.40	3.00	1.80	51.2%	1	363
84	23	50.3%	1.50	1.05	2.05	21.00	1.50	3.30	1.30	63.4%	—	1
189	1	54.8%	1.00	0.70	1.40	22.00	1.50	4.40	1.90	74.3%	8	163
68	5	59.4%	0.80	0.40	1.30	23.00	1.75	5.50	2.45	84.2%	—	3
112	2	56.3%	0.62	0.00	0.95	24.00	2.60	6.60	1.95	93.5%	—	1
270	1	56.7%	0.60	0.00	1.55	25.00	3.50	7.50	5.20	97.2%	1	6
178	117	56.1%	0.60	0.00	1.20	26.00	0.00	0.00	2.70	—	1	0
150	1	61.4%	1.36	0.00	1.25	27.00	1.90	6.00	4.64	—	2	22
0	1	12.5%	5.40	0.00	0.00	28.00	6.30	10.30	4.45	108.0%	2	46
9	1	72.4%	5.57	0.00	1.40	29.00	—	—	—	—	—	—
179	1	81.3%	0.25	0.10	1.60	30.00	8.30	12.30	10.03	117.0%	4	14
0	—	25.0%	4.70	0.00	0.00	31.00	—	—	—	—	—	—
21	1	90.3%	0.27	0.00	1.80	32.00	—	—	—	—	—	—
1	—	160.4%	3.25	1.40	5.20	33.00	—	—	—	—	—	—
0	2	25.0%	3.60	0.00	0.00	34.00	—	—	—	—	—	—
405	5	96.5%	0.19	0.00	1.60	35.00	7.10	10.50	8.50	—	—	16
234	1	112.0%	2.67	0.00	2.15	37.00	12.00	16.30	11.07	—	—	11
7	2	111.0%	0.50	0.00	1.65	40.00	10.30	13.80	13.65	—	2	1

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 ACAD put/call ratio?

For the January 15, 2027 expiration, the ACAD put/call ratio based on open interest is 0.42 (967 puts vs 2,276 calls), and 1.24 based on today's volume. A ratio above 1 means more puts than calls.

What is ACAD's implied volatility?

At-the-money implied volatility for ACAD options expiring January 15, 2027 is about 57.0%, an annualized estimate of how much the market expects ACADIA Pharmaceuticals stock to move.

How many ACAD option expiration dates are there?

ACAD has 5 listed expiration dates, from Oct 16, 2026 to Mar 19, 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.