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: Dec 17, 2027
Days to expiration: 432
Share price: $16.03
Put/call ratio (OI): 1.28
Put/call ratio (volume): 0.82
ATM implied volatility: 75.1%
Expected move: ±$13.10
Open interest (C / P): 1.54K / 1.98K

ERAS options summary

The ERAS options chain for the December 17, 2027 expiration lists 11 call and 7 put contracts, with 432 days until expiration. Open interest stands at 1,542 calls and 1,977 puts, a put/call ratio of 1.28, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $15.00 strike is 75.1%, which implies the market expects a move of about ±$13.10 (81.7%) in Erasca stock by expiration.

The most open interest sits at the $22.50 call (896 contracts) and the $17.50 put (1.94K contracts).

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

ERAS options chain · December 17, 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	2	252.3%	17.44	13.20	17.00	2.50	—	—	—	—	—	—
20	1	80.9%	11.35	9.90	12.80	5.00	—	—	—	—	—	—
239	64	85.5%	8.95	7.60	11.70	7.50	0.05	4.80	2.56	126.1%	—	1
79	16	85.2%	7.19	6.20	10.20	10.00	0.00	0.00	2.64	12.5%	1	0
52	48	82.7%	6.40	5.10	8.70	12.50	0.00	0.00	5.50	6.3%	—	0
—	—	—	—	—	—	15.00	2.15	6.70	5.02	75.1%	100	23
ERAS $16.03
47	1	84.7%	5.19	3.90	6.60	17.50	5.50	7.00	5.90	77.6%	55	1,938
31	6	78.7%	4.40	2.15	6.20	20.00	5.80	9.70	8.30	73.0%	16	2
896	30	78.8%	3.53	1.85	5.40	22.50	—	—	—	—	—	—
77	3	78.4%	3.65	1.55	4.70	25.00	9.40	12.40	11.70	60.8%	—	13
77	38	96.4%	5.65	1.75	5.50	30.00	—	—	—	—	—	—
23	2	86.3%	3.00	0.05	4.70	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 December 17, 2027 expiration, the ERAS put/call ratio based on open interest is 1.28 (1,977 puts vs 1,542 calls), and 0.82 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 December 17, 2027 is about 75.1%, 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.