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

After hours: 140.99 +0.29%

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 7
Share price: $140.58
Put/call ratio (OI): 1.55
Put/call ratio (volume): 10.33
ATM implied volatility: 73.6%
Expected move: ±$14.33
Open interest (C / P): 12.66K / 19.62K

GRAL options summary

The GRAL options chain for the October 16, 2026 expiration lists 32 call and 32 put contracts, with 7 days until expiration. Open interest stands at 12,659 calls and 19,623 puts, a put/call ratio of 1.55, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $140.00 strike is 73.6%, which implies the market expects a move of about ±$14.33 (10.2%) in GRAIL stock by expiration.

The most open interest sits at the $90.00 call (1.96K contracts) and the $60.00 put (4.96K contracts).

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

GRAL options chain · October 16, 2026

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
11	27	853.1%	132.40	116.00	120.10	22.50	0.00	0.05	0.10	437.5%	122	115
18	62	802.3%	127.45	113.50	117.60	25.00	0.00	0.05	0.10	412.5%	86	94
6	1	716.8%	91.30	108.50	112.60	30.00	0.00	0.10	0.05	396.9%	40	135
27	1	630.8%	97.20	103.50	107.40	35.00	0.00	0.10	0.05	359.4%	10,000	2,282
104	1	587.3%	79.60	98.40	102.60	40.00	0.00	0.05	0.05	303.1%	10	301
29	1	535.8%	92.25	93.50	97.60	45.00	0.00	0.05	0.05	275.0%	3	666
83	21	478.2%	87.25	88.70	92.40	50.00	0.00	0.05	0.03	251.6%	1	839
30	10	438.4%	102.57	83.70	87.40	55.00	0.00	2.15	0.01	389.8%	2,000	2,066
26	5	402.3%	79.35	78.70	82.40	60.00	0.00	0.25	0.05	250.8%	13	4,955
102	77	369.2%	74.92	73.70	77.40	65.00	0.00	1.00	0.01	282.4%	16	317
544	5	168.8%	61.80	68.80	72.40	70.00	0.00	0.75	0.01	245.5%	9	1,324
585	1	153.1%	56.80	63.80	67.40	75.00	0.00	0.75	0.10	223.6%	1	1,366
1,850	500	139.1%	53.19	58.80	62.40	80.00	0.00	1.45	0.06	229.9%	8	361
1,354	5	143.8%	45.60	53.80	57.50	85.00	0.00	0.60	0.10	177.2%	5	844
1,963	2	138.3%	50.08	48.90	52.50	90.00	0.05	0.50	0.20	157.0%	21	1,764
122	8	123.4%	59.50	43.90	47.50	95.00	0.05	1.00	0.21	158.2%	15	240
1,910	1	109.0%	37.83	38.90	42.50	100.00	0.10	0.50	0.35	126.4%	3	243
353	3	104.9%	52.22	34.00	37.60	105.00	0.00	1.45	0.50	132.9%	2	312
379	2	94.0%	29.50	29.00	32.70	110.00	0.05	1.45	0.25	116.6%	85	284
516	21	87.1%	25.54	24.20	27.80	115.00	0.05	1.35	0.68	98.0%	2	106
265	3	83.8%	12.99	19.50	23.20	120.00	0.00	2.80	1.48	100.0%	1	146
196	20	79.8%	15.75	15.00	18.80	125.00	0.20	3.40	1.50	89.4%	3	130
683	36	78.1%	13.78	11.00	14.80	130.00	1.45	3.10	2.43	77.4%	58	284
175	11	75.1%	10.50	7.60	11.00	135.00	1.85	5.90	3.93	77.2%	3	138
134	69	78.6%	6.18	5.10	8.50	140.00	4.10	6.70	6.48	68.7%	11	59
GRAL $140.58
41	76	78.0%	4.90	3.60	5.60	145.00	6.90	10.70	13.50	75.3%	36	69
351	55	90.3%	3.15	2.85	5.00	150.00	10.60	14.30	22.60	78.3%	1	36
142	96	71.4%	2.20	0.20	2.80	155.00	14.70	18.40	18.30	81.9%	1	44
81	6	90.8%	1.39	0.00	3.60	160.00	19.10	22.80	26.20	85.8%	10	49
405	36	89.8%	0.99	0.10	2.15	165.00	23.70	27.30	27.50	88.8%	120	49
56	46	82.1%	1.18	0.05	0.90	170.00	28.30	31.90	31.97	89.1%	5	3
118	21	89.5%	0.45	0.10	0.75	175.00	33.10	36.70	35.50	91.8%	10	2

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 October 16, 2026 expiration, the GRAL put/call ratio based on open interest is 1.55 (19,623 puts vs 12,659 calls), and 10.33 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 October 16, 2026 is about 73.6%, 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.