Erasca (ERAS) Options Chain

NASDAQ: ERASHealth CareBiotechnology: Pharmaceutical PreparationsUSD

16.03+0.57 (+3.69%)

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

Expiration date

Expiration: Jan 15, 2027
Days to expiration: 96
Share price: $16.03
Put/call ratio (OI): 0.11
Put/call ratio (volume): 30.16
ATM implied volatility: 110.9%
Expected move: ±$9.11
Open interest (C / P): 65.99K / 6.95K

ERAS options summary

The ERAS options chain for the January 15, 2027 expiration lists 12 call and 9 put contracts, with 96 days until expiration. Open interest stands at 65,987 calls and 6,950 puts, a put/call ratio of 0.11, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $15.00 strike is 110.9%, which implies the market expects a move of about ±$9.11 (56.9%) in Erasca stock by expiration.

The most open interest sits at the $35.00 call (25.74K contracts) and the $15.00 put (5.10K contracts).

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

ERAS options chain · January 15, 2027

ERAS 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
1,597	32	558.6%	11.66	11.30	15.20	2.50	—	—	—	—	—	—
0	1	—	12.76	0.00	0.00	5.00	0.00	0.00	0.40	50.0%	12	0
24	3	249.8%	11.15	10.20	11.20	7.50	0.00	0.00	0.45	25.0%	398	0
15,194	9	119.6%	5.23	6.80	7.20	10.00	0.50	1.20	0.77	113.1%	6	966
2,125	5	112.3%	5.25	4.90	5.70	12.50	1.40	2.10	2.05	111.5%	23	218
10,684	1	111.6%	4.00	3.80	4.30	15.00	2.85	3.10	2.95	110.1%	3,142	5,097
ERAS $16.03
4,122	12	108.5%	3.05	2.70	3.30	17.50	4.00	4.80	3.40	106.3%	3	159
3,720	24	104.5%	2.18	1.80	2.50	20.00	5.80	6.70	5.00	108.5%	4	299
2,119	8	103.3%	1.40	1.30	1.85	22.50	7.70	8.60	8.80	106.7%	1	199
151	3	104.0%	1.10	0.95	1.45	25.00	8.50	10.50	9.10	77.6%	—	12
514	4	102.3%	0.39	0.40	0.90	30.00	—	—	—	—	—	—
25,737	17	97.5%	0.28	0.10	0.50	35.00	—	—	—	—	—	—

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 ERAS put/call ratio?

For the January 15, 2027 expiration, the ERAS put/call ratio based on open interest is 0.11 (6,950 puts vs 65,987 calls), and 30.16 based on today's volume. A ratio above 1 means more puts than calls.

What is ERAS's implied volatility?

At-the-money implied volatility for ERAS options expiring January 15, 2027 is about 110.9%, an annualized estimate of how much the market expects Erasca stock to move.

How many ERAS option expiration dates are there?

ERAS has 10 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

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.