PTC Therapeutics (PTCT) Options Chain

NASDAQ: PTCTHealthcareBiotechnologyUSD

64.70+2.14 (+3.42%)

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

Expiration date

Expiration: Jan 21, 2028
Days to expiration: 468
Share price: $64.70
Put/call ratio (OI): 0.03
Put/call ratio (volume): 0.12
ATM implied volatility: 56.0%
Expected move: ±$41.05
Open interest (C / P): 9.77K / 251

PTCT options summary

The PTCT options chain for the January 21, 2028 expiration lists 21 call and 15 put contracts, with 468 days until expiration. Open interest stands at 9,772 calls and 251 puts, a put/call ratio of 0.03, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $65.00 strike is 56.0%, which implies the market expects a move of about ±$41.05 (63.4%) in PTC Therapeutics stock by expiration.

The most open interest sits at the $70.00 call (8.11K contracts) and the $75.00 put (66 contracts).

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

PTCT options chain · January 21, 2028

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
630	68	79.2%	37.60	36.50	41.00	30.00	0.65	3.50	3.50	62.1%	1	4
212	2	75.4%	33.50	33.10	37.00	35.00	—	—	—	—	—	—
23	1	70.5%	29.40	29.00	33.50	40.00	—	—	—	—	—	—
0	2	—	36.52	0.00	0.00	45.00	—	—	—	—	—	—
49	2	68.2%	24.00	23.00	28.00	50.00	4.00	9.00	5.20	60.2%	2	2
10	4	66.2%	24.70	20.50	25.00	55.00	—	—	—	—	—	—
60	3	64.6%	19.90	18.00	22.50	60.00	0.00	0.00	10.95	1.6%	4	0
PTCT $64.70
23	5	61.9%	17.69	15.50	19.80	65.00	12.30	17.00	15.10	50.1%	2	18
8,112	2	61.8%	15.20	13.50	18.30	70.00	15.00	20.00	17.50	57.6%	2	29
46	3	60.8%	14.80	12.00	16.20	75.00	18.50	23.00	18.90	56.0%	7	66
83	2	61.7%	13.60	10.50	15.50	80.00	19.50	23.30	21.10	44.6%	2	39
35	1	60.7%	10.00	9.00	14.00	85.00	25.00	29.50	26.56	52.9%	2	25
168	2	61.0%	9.00	8.00	13.00	90.00	23.50	28.50	24.87	34.2%	4	18
87	3	58.5%	11.90	6.50	11.10	95.00	32.50	37.50	33.90	52.8%	2	23
99	229	55.8%	7.80	6.60	7.80	100.00	37.50	42.00	41.00	54.0%	—	3
0	3	12.5%	11.40	0.00	0.00	105.00	37.00	41.50	31.40	31.8%	2	6
99	1	67.7%	12.70	7.00	11.00	110.00	—	—	—	—	—	—
0	11	12.5%	9.60	0.00	0.00	115.00	49.50	54.00	50.10	49.3%	10	14
7	2	66.5%	11.22	5.70	9.10	120.00	53.50	58.50	54.20	49.1%	—	1
7	1	66.7%	9.13	4.80	9.00	125.00	—	—	—	—	—	—
22	1	56.6%	6.62	1.50	6.50	130.00	63.50	68.00	65.58	50.3%	2	3

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 January 21, 2028 expiration, the PTCT put/call ratio based on open interest is 0.03 (251 puts vs 9,772 calls), and 0.12 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 January 21, 2028 is about 56.0%, 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.