SNDK Options History — October 2025

In October 2025, SNDK traded between $118.59 and $204.19. ATM implied volatility averaged 111.9%, placing in the 77.3% IV rank vs the trailing year. The 30-day expected move averaged 32.0%. IV traded above realized volatility by 15.8% (HV 20d: 96.1%). Max pain ranged from $80.00 to $150.00. Net GEX was positive for 22 of 23 trading days. Term structure was in contango for 3 of 23 days. Put/call ratio averaged 1.01.

Notable Days

2025-10-03: Highest Volume — 71,606 contracts
2025-10-06: Largest IV spike — 13.4% change
2025-10-15: Highest IV Rank — 84.9%
2025-10-29: Largest Expected Move — 36.4%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$149.40	$118.59	$204.19	$121.22	$200.14
Max Pain	$127.17	$80.00	$150.00	$80.00	$150.00
ATM IV	111.9%	89.6%	121.7%	90.7%	110.6%
Expected Move	32.0%	25.4%	36.4%	26.1%	34.4%
HV 20d	96.1%	77.9%	111.8%	94.5%	111.8%
HV 60d	78.8%	70.2%	90.3%	72.7%	89.6%
IV Rank	77.3%	59.7%	84.9%	60.6%	76.2%
IV Percentile	95.7%	89.7%	98.4%	90.9%	90.9%
Term Structure	-3.3%	-9.0%	5.3%	5.3%	-4.0%
VWIV	111.9%	90.2%	129.3%	91.3%	121.1%
Skew 25d	1.4%	-7.5%	11.6%	-5.5%	-7.5%
Skew 10d	1.7%	-48.9%	14.8%	-48.9%	-3.0%
Call IV 25d	111.6%	93.0%	120.9%	100.2%	114.5%
Put IV 25d	113.0%	91.2%	126.2%	94.7%	107.0%
Bid-Ask Spread %	26.37	17.66	36.62	21.46	31.93
Gamma HHI	0.09	0.05	0.18	0.11	0.13
Net GEX	5.0M	-2.8M	11.1M	5.1M	11.1M
Net DEX	-649.2M	-1.04B	-343.3M	-520.3M	-981.1M
Net VEX	-1.2M	-1.7M	-778.1K	-778.1K	-1.7M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	1.01	0.53	2.69	0.61	0.70
Total Volume	29,126.913	10,000	71,606	41,598	26,054
Total OI	140,316.826	89,480	169,818	126,674	158,607

Daily Data (23 trading days)

Date	Price	Max Pain	ATM IV	Exp Move	HV 20d	IV Rank	VWIV	Skew 25d	Term Str	GEX	DEX	VEX	P/C	Spread %	Call Wall	Put Wall	Call Vol	Put Vol	Call OI	Put OI
2025-10-01	$121.22	$80.00	90.7%	26.1%	94.5%	60.6%	91.3%	-5.5%	5.3%	5.1M	-520.3M	-778.1K	0.61	21.46	N/A	N/A	25,912	15,686	64,137	62,537
2025-10-02	$124.25	$80.00	89.6%	25.4%	83.7%	59.7%	90.2%	-2.5%	1.6%	7.7M	-600.1M	-916.3K	0.67	36.62	N/A	N/A	15,335	10,253	74,844	65,643
2025-10-03	$127.62	$85.00	96.7%	27.9%	80.9%	65.3%	97.9%	-1.2%	1.7%	8.8M	-654.2M	-920.0K	0.57	36.07	N/A	N/A	45,536	26,070	77,697	69,871
2025-10-06	$122.64	$130.00	109.7%	31.5%	84.6%	75.5%	110.1%	1.6%	-0.4%	5.8M	-501.9M	-1.2M	0.84	23.31	N/A	N/A	16,598	13,934	85,945	60,941
2025-10-07	$121.56	$125.00	112.9%	30.1%	85.1%	78.0%	105.7%	0.2%	-3.6%	5.8M	-473.6M	-1.2M	1.31	24.50	N/A	N/A	10,156	13,297	88,789	66,022
2025-10-08	$131.00	$125.00	115.7%	30.1%	86.7%	80.2%	105.6%	-0.6%	-6.2%	8.2M	-655.4M	-1.2M	1.10	23.27	N/A	N/A	9,209	10,154	89,264	73,464
2025-10-09	$130.17	$125.00	114.9%	30.1%	77.9%	79.6%	105.1%	-2.8%	-5.2%	7.1M	-623.2M	-1.2M	2.69	21.39	N/A	N/A	4,290	11,561	90,141	74,383
2025-10-10	$118.59	$125.00	114.5%	31.6%	87.9%	79.3%	110.6%	3.3%	-2.8%	2.1M	-343.3M	-1.1M	1.76	27.42	N/A	N/A	8,695	15,297	90,867	75,453
2025-10-13	$131.81	$125.00	115.0%	31.7%	92.8%	79.7%	111.4%	2.8%	-3.1%	5.0M	-595.2M	-1.1M	1.52	28.13	N/A	N/A	10,229	15,530	80,795	63,926
2025-10-14	$127.40	$125.00	115.3%	32.1%	94.7%	79.9%	110.8%	5.1%	-2.7%	4.2M	-533.1M	-1.1M	0.93	21.50	N/A	N/A	5,581	5,189	82,458	67,034
2025-10-15	$143.13	$125.00	121.7%	34.3%	101.1%	84.9%	117.7%	4.0%	-2.0%	8.1M	-825.6M	-1.1M	0.53	26.33	N/A	N/A	14,676	7,779	83,801	69,632
2025-10-16	$144.88	$125.00	119.2%	32.9%	100.7%	83.0%	115.2%	4.9%	-6.4%	7.6M	-871.6M	-1.1M	1.06	28.83	N/A	N/A	11,986	12,674	86,814	74,205
2025-10-17	$141.60	$135.00	114.4%	31.4%	101.6%	79.2%	109.7%	11.6%	-7.9%	-2.8M	-767.2M	-1.2M	1.06	30.32	N/A	N/A	7,854	8,323	86,541	83,277
2025-10-20	$149.32	$135.00	113.5%	32.1%	102.3%	78.5%	112.7%	2.7%	-3.3%	3.3M	-426.9M	-1.1M	0.59	25.92	N/A	N/A	11,886	6,978	48,104	41,376
2025-10-21	$149.07	$135.00	111.9%	31.8%	102.4%	77.2%	110.6%	0.1%	-5.8%	3.0M	-418.5M	-1.2M	1.20	21.59	N/A	N/A	4,548	5,452	52,535	45,832
2025-10-22	$147.97	$135.00	115.7%	33.2%	96.5%	80.2%	114.4%	5.0%	-9.0%	1.3M	-388.1M	-1.2M	0.57	25.90	N/A	N/A	17,783	10,107	53,031	49,870
2025-10-23	$167.32	$135.00	119.9%	34.6%	101.2%	83.5%	120.3%	8.6%	-7.1%	5.6M	-651.5M	-1.2M	1.12	21.29	N/A	N/A	20,090	22,489	58,288	56,153
2025-10-24	$186.47	$140.00	121.1%	35.3%	104.9%	84.5%	123.9%	5.4%	-4.7%	5.2M	-913.0M	-1.3M	0.87	17.66	N/A	N/A	33,309	29,072	64,964	66,947
2025-10-27	$175.01	$145.00	109.3%	32.4%	98.6%	75.2%	115.2%	-5.2%	-3.3%	1.6M	-592.6M	-1.4M	1.33	21.79	N/A	N/A	13,070	17,411	58,417	60,614
2025-10-28	$173.48	$145.00	112.7%	34.9%	98.7%	77.9%	121.1%	5.0%	-2.5%	361.6K	-563.5M	-1.5M	1.13	27.98	N/A	N/A	11,870	13,443	64,430	67,912
2025-10-29	$204.19	$145.00	116.8%	36.4%	109.6%	81.1%	129.3%	4.1%	-3.1%	5.3M	-995.3M	-1.5M	0.53	30.45	N/A	N/A	26,563	14,132	69,231	68,734
2025-10-30	$197.30	$150.00	112.4%	34.7%	111.7%	77.6%	124.2%	-6.6%	-2.4%	5.8M	-1.04B	-1.6M	0.56	32.91	N/A	N/A	21,702	12,156	79,335	74,426
2025-10-31	$200.14	$150.00	110.6%	34.4%	111.8%	76.2%	121.1%	-7.5%	-4.0%	11.1M	-981.1M	-1.7M	0.70	31.93	N/A	N/A	15,294	10,760	80,321	78,286