Pacific Biosciences of California (PACB) Options Chain
NASDAQ: PACBIndustrialsBiotechnology: Laboratory Analytical InstrumentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 18, 2026
- Days to expiration
- 68
- Share price
- $2.33
- Put/call ratio (OI)
- 0.04
- Put/call ratio (volume)
- 0.58
- ATM implied volatility
- 101.4%
- Expected move
- ±$1.02
- Open interest (C / P)
- 90.49K / 3.61K
PACB options summary
The PACB options chain for the December 18, 2026 expiration lists 6 call and 5 put contracts, with 68 days until expiration. Open interest stands at 90,492 calls and 3,610 puts, a put/call ratio of 0.04, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.00 strike is 101.4%, which implies the market expects a move of about ±$1.02 (43.8%) in Pacific Biosciences of California stock by expiration.
The most open interest sits at the $2.00 call (44.44K contracts) and the $2.00 put (3.16K contracts).
Summary generated from market data by MetaCap's automated system. Methodology
PACB options chain · December 18, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 1.90 | 1.30 | 2.20 | 0.50 | 0.00 | 0.00 | 0.05 | |||||
| 1.35 | 0.95 | 1.70 | 1.00 | 0.00 | 0.25 | 0.14 | |||||
| 0.85 | 0.75 | 1.05 | 1.50 | 0.00 | 0.15 | 0.05 | |||||
| 0.51 | 0.50 | 0.65 | 2.00 | 0.15 | 0.30 | 0.25 | |||||
| 0.20 | 0.15 | 0.35 | 3.00 | — | — | — | |||||
| 0.11 | 0.00 | 0.25 | 4.00 | 1.35 | 2.10 | 2.65 | |||||
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 December 18, 2026 expiration, the PACB put/call ratio based on open interest is 0.04 (3,610 puts vs 90,492 calls), and 0.58 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 December 18, 2026 is about 101.4%, 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.