Pacific Biosciences of California (PACB) Options Chain

NASDAQ: PACBHealthcareMedical DevicesUSD

2.33+0.03 (+1.30%)

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

Expiration date

Expiration: Jan 21, 2028
Days to expiration: 468
Share price: $2.33
Put/call ratio (OI): 0.11
Put/call ratio (volume): 0.29
ATM implied volatility: 98.5%
Expected move: ±$2.60
Open interest (C / P): 22.29K / 2.50K

PACB options summary

The PACB options chain for the January 21, 2028 expiration lists 8 call and 8 put contracts, with 468 days until expiration. Open interest stands at 22,285 calls and 2,502 puts, a put/call ratio of 0.11, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.00 strike is 98.5%, which implies the market expects a move of about ±$2.60 (111.6%) in Pacific Biosciences of California stock by expiration.

The most open interest sits at the $3.00 call (7.76K contracts) and the $2.00 put (2.00K contracts).

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

PACB options chain · January 21, 2028

PACB 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
501	12	160.2%	1.85	1.75	2.25	0.50	0.00	0.20	0.10	128.9%	20	34
718	4	130.5%	1.72	1.25	2.10	1.00	0.00	1.00	0.18	166.8%	2	208
5,654	6	90.2%	1.28	1.00	1.45	1.50	0.30	0.50	0.40	91.0%	3	158
5,062	12	102.7%	1.14	0.90	1.35	2.00	0.30	1.15	0.75	94.3%	1	1,995
PACB $2.33
7,760	211	114.5%	0.77	0.60	1.35	3.00	1.10	1.50	1.03	80.1%	10	39
701	4	92.4%	0.72	0.30	0.85	4.00	1.70	2.70	1.89	88.1%	20	46
1,609	6	106.8%	0.50	0.35	0.85	5.00	2.60	3.60	2.40	90.6%	10	17
280	1	120.7%	0.50	0.10	1.05	7.00	5.20	6.20	5.51	164.7%	7	5

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 PACB put/call ratio?

For the January 21, 2028 expiration, the PACB put/call ratio based on open interest is 0.11 (2,502 puts vs 22,285 calls), and 0.29 based on today's volume. A ratio above 1 means more puts than calls.

What is PACB's implied volatility?

At-the-money implied volatility for PACB options expiring January 21, 2028 is about 98.5%, an annualized estimate of how much the market expects Pacific Biosciences of California stock to move.

How many PACB option expiration dates are there?

PACB has 7 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.