Penumbra (PEN) Options Chain
NYSE: PENHealth CareMedical/Dental InstrumentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 18, 2026
- Days to expiration
- 68
- Share price
- $319.40
- Put/call ratio (OI)
- 2.86
- Put/call ratio (volume)
- 1.20
- Expected move
- ±$0.1379
- Open interest (C / P)
- 883 / 2.52K
PEN options summary
The PEN options chain for the December 18, 2026 expiration lists 27 call and 42 put contracts, with 68 days until expiration. Open interest stands at 883 calls and 2,522 puts, a put/call ratio of 2.86, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $320.00 strike is 0.1%, which implies the market expects a move of about ±$0.1379 (0.0%) in Penumbra stock by expiration.
The most open interest sits at the $350.00 call (532 contracts) and the $300.00 put (574 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
PEN options chain · December 18, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 120.00 | 0.00 | 1.50 | 0.50 | |||||
| — | — | — | 125.00 | 0.00 | 1.50 | 1.50 | |||||
| — | — | — | 135.00 | 0.00 | 2.90 | 2.70 | |||||
| — | — | — | 140.00 | 0.00 | 4.00 | 4.00 | |||||
| — | — | — | 150.00 | 0.00 | 7.00 | 5.00 | |||||
| — | — | — | 160.00 | 3.00 | 20.00 | 2.10 | |||||
| — | — | — | 165.00 | 3.00 | 0.00 | 3.00 | |||||
| — | — | — | 170.00 | 0.00 | 8.50 | 8.20 | |||||
| — | — | — | 175.00 | 3.50 | 0.00 | 4.20 | |||||
| — | — | — | 180.00 | 8.10 | 18.00 | 4.00 | |||||
| — | — | — | 190.00 | 0.00 | 0.00 | 12.84 | |||||
| — | — | — | 195.00 | 0.10 | 20.00 | 10.00 | |||||
| 89.00 | 126.50 | 131.50 | 200.00 | 0.00 | 0.00 | 27.00 | |||||
| — | — | — | 210.00 | 10.10 | 29.90 | 31.90 | |||||
| — | — | — | 220.00 | 0.00 | 0.00 | 25.50 | |||||
| 105.00 | 129.50 | 134.50 | 230.00 | 0.00 | 0.00 | 23.00 | |||||
| 94.38 | 118.00 | 123.00 | 240.00 | 32.10 | 51.80 | 51.00 | |||||
| — | — | — | 250.00 | 25.00 | 0.00 | 59.95 | |||||
| 80.30 | 100.50 | 105.00 | 260.00 | 0.00 | 0.00 | 54.00 | |||||
| — | — | — | 270.00 | 0.00 | 0.00 | 54.10 | |||||
| 79.00 | 62.20 | 72.20 | 280.00 | 0.00 | 0.00 | 64.10 | |||||
| 70.00 | 52.50 | 62.50 | 290.00 | 0.00 | 0.00 | 74.20 | |||||
| 26.50 | 16.00 | 26.00 | 300.00 | 48.10 | 60.00 | 59.00 | |||||
| 20.20 | 6.10 | 18.20 | 310.00 | 0.00 | 0.00 | 96.00 | |||||
| 10.60 | 0.00 | 0.00 | 320.00 | 0.00 | 0.00 | 99.00 | |||||
| 6.10 | 0.00 | 0.00 | 330.00 | 0.00 | 0.00 | 103.40 | |||||
| 3.00 | 0.00 | 0.00 | 340.00 | 0.00 | 0.00 | 111.70 | |||||
| 0.96 | 0.00 | 4.50 | 350.00 | 0.00 | 0.00 | 143.90 | |||||
| 12.20 | 0.00 | 0.00 | 360.00 | 128.10 | 147.90 | 142.00 | |||||
| 10.00 | 0.00 | 0.00 | 370.00 | 0.00 | 0.00 | 148.00 | |||||
| 11.90 | 0.00 | 0.00 | 380.00 | 0.00 | 0.00 | 158.10 | |||||
| 10.50 | 0.00 | 0.00 | 390.00 | 164.10 | 183.90 | 186.00 | |||||
| 17.40 | 0.00 | 0.00 | 400.00 | 168.10 | 187.90 | 186.00 | |||||
| 8.70 | 0.00 | 0.00 | 410.00 | 0.00 | 0.00 | 117.60 | |||||
| 12.30 | 0.00 | 0.00 | 420.00 | 0.00 | 0.00 | 188.00 | |||||
| 17.30 | 0.00 | 0.00 | 430.00 | 0.00 | 0.00 | 198.00 | |||||
| 3.10 | 0.00 | 10.00 | 440.00 | 0.00 | 0.00 | 212.80 | |||||
| 3.50 | 0.00 | 10.00 | 450.00 | 0.00 | 0.00 | 222.70 | |||||
| 1.60 | 0.00 | 0.00 | 460.00 | 0.00 | 0.00 | 228.00 | |||||
| 30.10 | 0.00 | 0.00 | 470.00 | 243.00 | 253.00 | 232.10 | |||||
| 1.60 | 0.00 | 0.00 | 480.00 | 253.00 | 263.00 | 242.00 | |||||
| 4.00 | 0.00 | 0.00 | 490.00 | — | — | — | |||||
| 2.60 | 0.00 | 10.00 | 500.00 | 266.00 | 286.00 | 267.00 | |||||
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 December 18, 2026 expiration, the PEN put/call ratio based on open interest is 2.86 (2,522 puts vs 883 calls), and 1.20 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 December 18, 2026 is about 0.1%, 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.