AnaptysBio (ANAB) Options Chain

NASDAQ: ANABHealth CareBiotechnology: Pharmaceutical PreparationsUSD

45.95-0.26 (-0.56%)

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

Expiration date

Expiration: Feb 19, 2027
Days to expiration: 131
Share price: $45.95
Put/call ratio (OI): 0.15
Put/call ratio (volume): 0.79
ATM implied volatility: 76.0%
Expected move: ±$20.92
Open interest (C / P): 1.67K / 243

ANAB options summary

The ANAB options chain for the February 19, 2027 expiration lists 14 call and 7 put contracts, with 131 days until expiration. Open interest stands at 1,666 calls and 243 puts, a put/call ratio of 0.15, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $45.00 strike is 76.0%, which implies the market expects a move of about ±$20.92 (45.5%) in AnaptysBio stock by expiration.

The most open interest sits at the $70.00 call (1.47K contracts) and the $35.00 put (155 contracts).

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

ANAB options chain · February 19, 2027

ANAB 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
2	1	104.0%	33.00	20.50	25.00	25.00	0.00	4.90	1.70	116.8%	1	34
1	2	269.8%	42.10	28.50	32.90	30.00	0.20	2.00	2.20	67.0%	30	44
4	4	91.9%	19.80	13.10	17.50	35.00	2.80	3.50	3.40	77.0%	20	155
0	5	87.5%	14.15	9.90	14.50	40.00	—	—	—	—	—	—
0	4	—	19.65	0.00	0.00	45.00	5.50	10.00	6.30	76.0%	—	1
ANAB $45.95
6	1	83.3%	10.97	5.20	10.00	50.00	—	—	—	—	—	—
45	5	82.6%	9.00	3.60	8.40	55.00	11.50	16.00	11.00	70.7%	8	9
7	1	82.2%	6.70	2.50	7.00	60.00	—	—	—	—	—	—
22	22	81.9%	6.90	1.50	6.00	65.00	—	—	—	—	—	—
1,474	1	83.6%	3.30	0.80	5.50	70.00	17.00	21.00	22.59	—	3	0
6	7	87.6%	6.20	0.95	4.80	75.00	—	—	—	—	—	—
0	22	25.0%	5.99	0.00	0.00	80.00	—	—	—	—	—	—
5	1	94.4%	2.01	0.00	4.90	85.00	28.00	32.50	32.60	—	2	0
94	5	95.6%	3.02	0.00	4.30	90.00	—	—	—	—	—	—

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 ANAB put/call ratio?

For the February 19, 2027 expiration, the ANAB put/call ratio based on open interest is 0.15 (243 puts vs 1,666 calls), and 0.79 based on today's volume. A ratio above 1 means more puts than calls.

What is ANAB's implied volatility?

At-the-money implied volatility for ANAB options expiring February 19, 2027 is about 76.0%, an annualized estimate of how much the market expects AnaptysBio stock to move.

How many ANAB option expiration dates are there?

ANAB has 4 listed expiration dates, from Oct 16, 2026 to May 21, 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.