PTC Therapeutics (PTCT) Options Chain

NASDAQ: PTCTHealth CareBiotechnology: Pharmaceutical PreparationsUSD

64.70+2.14 (+3.42%)

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

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 68
Share price: $64.70
Put/call ratio (OI): 0.99
Put/call ratio (volume): 2.03
ATM implied volatility: 51.2%
Expected move: ±$14.30
Open interest (C / P): 396 / 391

PTCT options summary

The PTCT options chain for the December 18, 2026 expiration lists 18 call and 9 put contracts, with 68 days until expiration. Open interest stands at 396 calls and 391 puts, a put/call ratio of 0.99, which is fairly balanced between calls and puts. At-the-money implied volatility near the $65.00 strike is 51.2%, which implies the market expects a move of about ±$14.30 (22.1%) in PTC Therapeutics stock by expiration.

The most open interest sits at the $85.00 call (319 contracts) and the $75.00 put (300 contracts).

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

PTCT options chain · December 18, 2026

PTCT 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
—	—	—	—	—	—	35.00	0.00	2.20	0.25	111.4%	—	3
1	—	190.4%	42.64	29.80	33.60	40.00	—	—	—	—	—	—
1	—	164.5%	45.60	25.10	28.90	45.00	0.00	1.00	0.90	59.4%	—	2
1	—	147.2%	33.80	21.00	24.70	50.00	0.30	1.45	1.25	53.2%	4	4
1	—	131.1%	29.70	17.00	20.60	55.00	1.20	2.45	2.10	51.6%	31	38
2	2	118.4%	32.50	13.10	17.20	60.00	1.55	5.50	3.90	51.6%	7	14
PTCT $64.70
10	—	51.2%	8.73	3.60	7.60	65.00	4.00	7.80	6.00	51.2%	—	4
28	5	50.4%	3.00	1.60	5.60	70.00	6.70	10.60	9.60	65.8%	18	26
0	—	6.3%	11.20	0.00	0.00	75.00	8.10	11.80	10.80	42.0%	—	300
3	2	54.9%	1.85	0.00	3.50	80.00	—	—	—	—	—	—
319	1	61.1%	3.40	0.00	3.10	85.00	—	—	—	—	—	—
2	1	66.7%	3.42	0.00	2.80	90.00	—	—	—	—	—	—
5	1	67.1%	2.56	0.00	2.00	95.00	—	—	—	—	—	—
2	2	77.2%	1.50	0.00	2.45	100.00	—	—	—	—	—	—
0	1	82.1%	1.13	0.00	2.35	105.00	—	—	—	—	—	—
1	1	87.5%	0.77	0.05	2.30	110.00	—	—	—	—	—	—
1	—	95.8%	5.40	0.00	2.70	115.00	—	—	—	—	—	—
11	14	100.2%	0.15	0.00	2.20	125.00	51.90	55.80	41.70	—	1	0
8	—	78.1%	0.85	0.00	0.45	130.00	—	—	—	—	—	—

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 December 18, 2026 expiration, the PTCT put/call ratio based on open interest is 0.99 (391 puts vs 396 calls), and 2.03 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 December 18, 2026 is about 51.2%, 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.