Penumbra (PEN) Options Chain
NYSE: PENHealth CareMedical/Dental InstrumentsUSD
At close: Oct 8, 4:00 PM ET · Delayed 15 min
After hours: 317.52 0.00%
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 8
- Share price
- $317.52
- Put/call ratio (OI)
- 2.02
- Put/call ratio (volume)
- 2.90
- Expected move
- ±$7.83
- Open interest (C / P)
- 738 / 1.49K
PEN options summary
The PEN options chain for the October 16, 2026 expiration lists 23 call and 42 put contracts, with 8 days until expiration. Open interest stands at 738 calls and 1,492 puts, a put/call ratio of 2.02, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $320.00 strike is 16.7%, which implies the market expects a move of about ±$7.83 (2.5%) in Penumbra stock by expiration.
The most open interest sits at the $450.00 call (247 contracts) and the $170.00 put (265 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
PEN options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 120.00 | 0.00 | 0.05 | 0.05 | |||||
| — | — | — | 130.00 | 0.00 | 0.10 | 0.10 | |||||
| — | — | — | 140.00 | 0.00 | 0.05 | 0.20 | |||||
| — | — | — | 150.00 | 0.00 | 0.05 | 0.02 | |||||
| — | — | — | 155.00 | 0.00 | 3.00 | 0.25 | |||||
| — | — | — | 160.00 | 0.00 | 0.05 | 0.10 | |||||
| — | — | — | 165.00 | 0.00 | 0.05 | 0.10 | |||||
| — | — | — | 170.00 | 0.00 | 0.05 | 0.05 | |||||
| — | — | — | 175.00 | 0.00 | 0.05 | 0.05 | |||||
| — | — | — | 180.00 | 0.00 | 0.05 | 0.05 | |||||
| — | — | — | 185.00 | 0.00 | 10.00 | 0.10 | |||||
| — | — | — | 190.00 | 0.00 | 0.10 | 0.70 | |||||
| — | — | — | 195.00 | 0.00 | 0.10 | 1.00 | |||||
| — | — | — | 200.00 | 0.00 | 0.10 | 0.05 | |||||
| — | — | — | 210.00 | 0.00 | 0.10 | 0.10 | |||||
| — | — | — | 220.00 | 0.00 | 0.15 | 2.00 | |||||
| — | — | — | 230.00 | 0.00 | 0.00 | 6.10 | |||||
| — | — | — | 240.00 | 0.00 | 0.00 | 11.00 | |||||
| — | — | — | 250.00 | 0.15 | 1.00 | 0.15 | |||||
| 98.60 | 83.10 | 88.10 | 260.00 | 0.00 | 1.00 | 0.50 | |||||
| 68.30 | 62.00 | 71.00 | 270.00 | 0.00 | 1.00 | 8.50 | |||||
| 49.69 | 37.00 | 47.00 | 280.00 | 0.00 | 1.00 | 0.50 | |||||
| — | — | — | 290.00 | 0.30 | 1.25 | 0.70 | |||||
| 39.70 | 33.00 | 43.00 | 300.00 | 0.00 | 1.75 | 1.00 | |||||
| 18.20 | 0.00 | 0.00 | 310.00 | 0.00 | 3.00 | 0.40 | |||||
| 2.60 | 0.45 | 1.00 | 320.00 | 0.00 | 6.00 | 8.10 | |||||
| 0.20 | 0.00 | 0.50 | 330.00 | 6.00 | 0.00 | 13.80 | |||||
| 4.10 | 0.00 | 1.00 | 340.00 | 12.10 | 31.90 | 24.00 | |||||
| 7.00 | 0.00 | 0.00 | 350.00 | 38.10 | 57.90 | 85.90 | |||||
| 7.00 | 0.00 | 0.00 | 360.00 | 48.10 | 66.00 | 95.40 | |||||
| 8.10 | 0.00 | 0.00 | 370.00 | 0.00 | 0.00 | 77.70 | |||||
| 5.00 | 0.00 | 2.50 | 380.00 | 0.00 | 0.00 | 87.10 | |||||
| 3.46 | 0.00 | 2.20 | 390.00 | 0.00 | 0.00 | 97.10 | |||||
| 22.00 | 0.00 | 0.00 | 400.00 | 72.10 | 91.90 | 102.50 | |||||
| 2.55 | 0.00 | 0.00 | 410.00 | 0.00 | 0.00 | 106.00 | |||||
| 14.60 | 0.00 | 0.20 | 420.00 | 0.00 | 0.00 | 116.50 | |||||
| 15.20 | 0.00 | 0.20 | 430.00 | 122.00 | 132.00 | 115.00 | |||||
| 5.00 | 0.00 | 1.00 | 440.00 | 126.00 | 146.00 | 176.80 | |||||
| 0.05 | 0.00 | 0.10 | 450.00 | 136.00 | 156.00 | 194.00 | |||||
| 1.00 | 0.00 | 0.20 | 460.00 | 132.00 | 152.00 | 142.28 | |||||
| 3.10 | 0.00 | 10.00 | 470.00 | 142.00 | 162.00 | 151.10 | |||||
| 1.00 | 0.00 | 0.20 | 480.00 | 166.00 | 186.00 | 220.00 | |||||
| 14.70 | 0.00 | 0.20 | 490.00 | — | — | — | |||||
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 PEN put/call ratio?
For the October 16, 2026 expiration, the PEN put/call ratio based on open interest is 2.02 (1,492 puts vs 738 calls), and 2.90 based on today's volume. A ratio above 1 means more puts than calls.
What is PEN's implied volatility?
At-the-money implied volatility for PEN options expiring October 16, 2026 is about 16.7%, an annualized estimate of how much the market expects Penumbra stock to move.
How many PEN option expiration dates are there?
PEN has 9 listed expiration dates, from Oct 16, 2026 to Dec 17, 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.