GRAIL (GRAL) Options Chain

NASDAQ: GRALHealth CareMedical SpecialitiesUSD

140.58+7.97 (+6.01%)

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

Expiration date

Expiration: Jan 21, 2028
Days to expiration: 468
Share price: $140.58
Put/call ratio (OI): 0.33
Put/call ratio (volume): 0.20
ATM implied volatility: 78.6%
Expected move: ±$125.16
Open interest (C / P): 4.01K / 1.31K

GRAL options summary

The GRAL options chain for the January 21, 2028 expiration lists 35 call and 29 put contracts, with 468 days until expiration. Open interest stands at 4,015 calls and 1,313 puts, a put/call ratio of 0.33, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $140.00 strike is 78.6%, which implies the market expects a move of about ±$125.16 (89.0%) in GRAIL stock by expiration.

The most open interest sits at the $150.00 call (429 contracts) and the $65.00 put (232 contracts).

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

GRAL options chain · January 21, 2028

GRAL 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
178	1	109.4%	135.00	119.50	124.50	20.00	0.00	4.70	1.00	123.8%	1	212
66	2	110.0%	58.80	117.50	122.50	22.50	0.00	0.00	3.00	25.0%	1	0
65	72	—	51.64	53.50	58.50	25.00	0.00	5.00	2.45	110.7%	1	53
22	1	103.0%	109.50	111.00	116.00	30.00	1.30	2.60	2.20	92.8%	1	43
34	71	101.0%	102.50	107.00	112.00	35.00	1.15	5.00	2.57	94.2%	2	100
131	1	98.4%	99.10	103.00	108.00	40.00	1.30	3.70	3.00	80.9%	1	50
20	1	98.3%	98.00	99.50	104.50	45.00	1.50	6.50	4.22	84.2%	10	24
276	2	95.0%	87.00	95.50	100.50	50.00	2.50	7.50	5.63	82.8%	1	26
127	1	93.9%	90.50	92.00	97.00	55.00	4.00	9.00	5.00	83.2%	5	18
126	1	93.3%	85.00	89.00	93.50	60.00	5.00	10.00	7.50	80.8%	1	130
364	1	92.3%	94.48	85.50	90.50	65.00	6.50	11.50	8.08	80.2%	2	232
295	1	91.9%	105.00	82.50	87.50	70.00	8.50	13.50	20.70	80.8%	2	14
66	25	91.1%	81.50	79.50	84.50	75.00	10.00	15.00	13.30	79.4%	1	36
39	1	90.0%	79.85	76.50	81.50	80.00	12.00	17.00	12.50	79.1%	2	40
209	1	90.1%	73.00	74.00	79.00	85.00	14.00	19.00	16.50	78.6%	1	9
143	4	89.9%	72.60	71.50	76.50	90.00	16.00	21.00	19.00	77.8%	1	39
114	1	89.4%	64.75	69.00	74.00	95.00	18.50	23.50	21.50	78.0%	10	29
229	71	88.8%	63.00	66.50	71.50	100.00	20.50	25.50	23.50	76.7%	1	59
65	10	88.0%	73.00	64.00	69.00	105.00	23.00	28.00	26.00	76.4%	1	8
52	3	87.0%	63.45	61.50	66.50	110.00	25.50	30.50	28.00	75.9%	1	16
11	3	87.0%	62.70	59.50	64.50	115.00	28.00	33.00	31.60	75.3%	2	9
58	3	85.8%	60.45	57.00	62.00	120.00	30.50	35.50	35.00	74.5%	1	20
13	1	85.4%	49.40	55.00	60.00	125.00	33.50	38.50	38.50	74.4%	1	5
325	3	85.0%	56.50	53.00	58.00	130.00	36.00	41.00	40.30	73.3%	1	25
15	3	84.4%	51.00	51.00	56.00	135.00	39.00	44.00	43.10	73.0%	3	4
36	9	84.6%	52.11	49.50	54.50	140.00	42.00	47.00	45.50	72.6%	10	54
GRAL $140.58
54	8	83.9%	44.94	47.50	52.50	145.00	45.00	50.00	48.32	72.1%	—	2
429	9	83.9%	48.34	46.00	51.00	150.00	48.00	53.00	48.50	71.4%	1	53
50	1	82.9%	54.57	44.00	49.00	155.00	—	—	—	—	—	—
28	1	82.7%	38.50	42.50	47.50	160.00	54.50	59.50	56.00	70.6%	—	3
154	1	82.5%	36.64	41.00	46.00	165.00	—	—	—	—	—	—
10	—	82.5%	40.95	38.50	43.50	175.00	—	—	—	—	—	—
80	—	82.3%	35.17	35.00	40.00	190.00	—	—	—	—	—	—
14	14	81.7%	34.85	32.50	37.50	200.00	—	—	—	—	—	—
117	1	81.5%	29.00	30.50	35.50	210.00	—	—	—	—	—	—

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 GRAL put/call ratio?

For the January 21, 2028 expiration, the GRAL put/call ratio based on open interest is 0.33 (1,313 puts vs 4,015 calls), and 0.20 based on today's volume. A ratio above 1 means more puts than calls.

What is GRAL's implied volatility?

At-the-money implied volatility for GRAL options expiring January 21, 2028 is about 78.6%, an annualized estimate of how much the market expects GRAIL stock to move.

How many GRAL option expiration dates are there?

GRAL has 5 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.