CleanSpark (CLSK) Options Chain

NASDAQ: CLSKFinanceFinance: Consumer ServicesUSD

10.50-0.135 (-1.27%)

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

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 5
Share price: $10.50
Put/call ratio (OI): 0.47
Put/call ratio (volume): 0.41
ATM implied volatility: 73.8%
Expected move: ±$0.9069
Open interest (C / P): 53.01K / 25.10K

CLSK options summary

The CLSK options chain for the October 16, 2026 expiration lists 38 call and 29 put contracts, with 5 days until expiration. Open interest stands at 53,006 calls and 25,104 puts, a put/call ratio of 0.47, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $10.50 strike is 73.8%, which implies the market expects a move of about ±$0.9069 (8.6%) in CleanSpark stock by expiration.

The most open interest sits at the $15.00 call (10.15K contracts) and the $11.00 put (7.68K contracts).

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

CLSK options chain · October 16, 2026

CLSK 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
124	2	1553.1%	9.47	9.25	9.70	1.00	—	—	—	—	—	—
17	2	981.3%	8.55	7.20	8.65	2.00	—	—	—	—	—	—
12	7	745.3%	7.50	7.05	8.25	3.00	—	—	—	—	—	—
6	1	670.3%	6.36	6.15	6.75	4.00	—	—	—	—	—	—
13	4	262.5%	5.60	5.30	5.70	5.00	0.00	0.75	0.05	604.7%	2	0
12	2	334.4%	4.55	4.20	4.60	6.00	0.00	0.56	0.02	439.1%	2	13
5	3	195.3%	3.55	3.30	3.75	7.00	0.00	0.14	0.02	232.8%	4	153
—	—	—	4.19	—	—	7.50	—	—	—	—	—	—
3	4	276.6%	2.54	2.30	3.35	8.00	0.00	0.01	0.01	106.3%	4	39
1	28	194.5%	2.09	1.61	2.20	8.50	—	—	—	—	—	—
14	8	81.3%	1.52	1.18	1.85	9.00	0.02	0.03	0.02	84.4%	65	1,083
2	4	94.5%	1.13	0.63	1.58	9.50	0.03	0.08	0.09	74.2%	162	358
319	33	89.5%	0.71	0.62	0.82	10.00	0.15	0.23	0.19	81.3%	392	1,948
CLSK $10.50
214	351	73.8%	0.41	0.26	0.46	10.50	0.25	0.48	0.42	73.8%	151	768
2,919	1,834	83.6%	0.20	0.20	0.23	11.00	0.64	0.92	0.77	96.9%	146	7,682
3,264	422	85.9%	0.11	0.10	0.12	11.50	1.04	1.20	1.09	87.5%	336	1,658
4,686	787	91.4%	0.06	0.05	0.07	12.00	1.29	1.71	1.63	137.5%	238	5,441
330	110	93.8%	0.03	0.02	0.04	12.50	1.68	2.24	2.03	169.5%	3	550
3,798	45	114.1%	0.03	0.02	0.05	13.00	2.41	2.70	2.62	122.7%	33	4,756
954	8	109.4%	0.02	0.00	0.03	13.50	2.90	3.25	3.08	150.0%	77	427
5,102	22	134.4%	0.02	0.01	0.04	14.00	2.89	3.85	3.63	262.1%	1	104
410	52	134.4%	0.01	0.01	0.02	14.50	3.90	4.25	4.00	179.7%	1	23
10,154	210	146.9%	0.02	0.00	0.03	15.00	4.00	5.20	4.43	207.8%	32	74
609	64	137.5%	0.01	0.00	0.01	15.50	4.25	5.45	4.85	343.0%	1	1
6,307	80	143.8%	0.01	0.00	0.01	16.00	4.85	5.70	3.77	278.9%	1	11
436	3	187.5%	0.01	0.00	0.04	16.50	5.90	6.40	3.60	271.9%	10	0
2,747	1	187.5%	0.01	0.00	0.03	17.00	6.25	6.75	6.45	325.0%	2	3
233	12	341.8%	0.05	0.00	0.51	17.50	—	—	—	—	—	—
1,146	3	206.3%	0.03	0.00	0.03	18.00	7.35	7.80	7.15	264.8%	2	8
43	1	366.4%	0.07	0.00	0.51	18.50	—	—	—	—	—	—
6,179	3	268.8%	0.01	0.00	0.10	19.00	7.70	9.00	8.61	456.3%	2	1
17	1	250.0%	0.01	0.00	0.05	19.50	—	—	—	—	—	—
2,601	1	250.0%	0.01	0.00	0.04	20.00	8.60	10.05	7.71	494.5%	2	2
133	5	360.9%	0.01	0.00	0.26	21.00	9.55	11.05	8.72	517.2%	2	0
124	2	483.6%	0.02	0.00	0.75	22.00	11.25	12.05	10.35	387.5%	4	0
19	2	456.3%	0.01	0.00	0.51	23.00	11.95	12.75	12.59	452.3%	2	0
38	1	419.5%	0.05	0.00	0.29	24.00	12.85	14.45	13.20	419.5%	2	0
15	1	293.8%	0.02	0.00	0.02	25.00	14.00	15.00	13.78	577.3%	1	1

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 CLSK put/call ratio?

For the October 16, 2026 expiration, the CLSK put/call ratio based on open interest is 0.47 (25,104 puts vs 53,006 calls), and 0.41 based on today's volume. A ratio above 1 means more puts than calls.

What is CLSK's implied volatility?

At-the-money implied volatility for CLSK options expiring October 16, 2026 is about 73.8%, an annualized estimate of how much the market expects CleanSpark stock to move.

How many CLSK option expiration dates are there?

CLSK has 12 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.