PTC Therapeutics (PTCT) Options Chain
NASDAQ: PTCTHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $64.70
- Put/call ratio (OI)
- 0.95
- Put/call ratio (volume)
- 0.46
- Expected move
- ±$11.68
- Open interest (C / P)
- 335 / 319
PTCT options summary
The PTCT options chain for the November 20, 2026 expiration lists 6 call and 4 put contracts, with 40 days until expiration. Open interest stands at 335 calls and 319 puts, a put/call ratio of 0.95, which is fairly balanced between calls and puts. At-the-money implied volatility near the $65.00 strike is 54.5%, which implies the market expects a move of about ±$11.68 (18.1%) in PTC Therapeutics stock by expiration.
The most open interest sits at the $75.00 call (303 contracts) and the $65.00 put (309 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
PTCT options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 50.00 | 0.00 | 2.75 | 0.60 | |||||
| 10.56 | 9.10 | 12.90 | 55.00 | 0.00 | 2.80 | 1.55 | |||||
| — | — | — | 60.00 | 2.00 | 4.80 | 2.91 | |||||
| 4.00 | 2.50 | 6.60 | 65.00 | 3.30 | 6.50 | 6.20 | |||||
| 2.26 | 0.65 | 4.30 | 70.00 | — | — | — | |||||
| 1.20 | 0.95 | 3.30 | 75.00 | — | — | — | |||||
| 1.17 | 0.00 | 2.80 | 80.00 | — | — | — | |||||
| 0.35 | 0.00 | 2.30 | 95.00 | — | — | — | |||||
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 PTCT put/call ratio?
For the November 20, 2026 expiration, the PTCT put/call ratio based on open interest is 0.95 (319 puts vs 335 calls), and 0.46 based on today's volume. A ratio above 1 means more puts than calls.
What is PTCT's implied volatility?
At-the-money implied volatility for PTCT options expiring November 20, 2026 is about 54.5%, an annualized estimate of how much the market expects PTC Therapeutics stock to move.
How many PTCT option expiration dates are there?
PTCT has 6 listed expiration dates, from Oct 16, 2026 to Jan 21, 2028.
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.