OPEN Options History — October 2025

In October 2025, OPEN traded between $6.81 and $9.46. ATM implied volatility averaged 145.9%, placing in the 33.1% IV rank vs the trailing year. The 30-day expected move averaged 41.5%. IV traded below realized volatility by 5.0% (HV 20d: 150.9%). Max pain ranged from $5.00 to $7.50. Net GEX was positive for 22 of 23 trading days. Term structure was in contango for 9 of 23 days. Put/call ratio averaged 0.30.

Notable Days

2025-10-03: Highest Volume — 1,385,003 contracts
2025-10-06: Largest IV spike — 19.1% change
2025-10-06: Highest IV Rank — 40.0%
2025-10-08: Largest Expected Move — 47.0%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$7.79	$6.81	$9.46	$7.99	$7.72
Max Pain	$5.63	$5.00	$7.50	$7.00	$6.00
ATM IV	145.9%	133.6%	164.0%	141.4%	141.2%
Expected Move	41.5%	35.4%	47.0%	40.1%	41.1%
HV 20d	150.9%	80.3%	269.7%	269.7%	98.1%
HV 60d	218.4%	195.0%	241.7%	241.6%	195.0%
IV Rank	33.1%	28.5%	40.0%	31.4%	31.4%
IV Percentile	73.6%	66.7%	82.1%	75.0%	69.4%
Term Structure	-0.6%	-10.5%	14.2%	11.5%	-10.5%
VWIV	155.9%	137.6%	171.2%	152.0%	152.2%
Skew 25d	-25.5%	-37.6%	52.4%	-28.8%	-20.6%
Skew 10d	-57.9%	-95.5%	-39.8%	-67.4%	-51.9%
Call IV 25d	166.6%	110.1%	193.3%	167.9%	157.5%
Put IV 25d	141.1%	125.9%	162.5%	139.1%	136.9%
Bid-Ask Spread %	9.59	3.42	18.00	6.63	12.83
Gamma HHI	0.15	0.09	0.42	0.12	0.11
Net GEX	4.4M	-818.8K	10.7M	4.1M	4.0M
Net DEX	-756.7M	-1.19B	-517.1M	-785.1M	-767.4M
Net VEX	-2.4M	-2.6M	-2.2M	-2.5M	-2.4M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.30	0.14	0.56	0.30	0.32
Total Volume	580,348.174	276,911	1,385,003	627,629	400,144
Total OI	3,052,026.522	2,522,982	3,535,682	3,297,283	2,893,035

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 Vol	Put Vol	Call OI	Put OI
2025-10-01	$7.99	$7.00	141.4%	40.1%	269.7%	31.4%	152.0%	-28.8%	11.5%	4.1M	-785.1M	-2.5M	0.30	6.63	482,432	145,197	2,135,967	1,161,316
2025-10-02	$8.04	$7.00	135.5%	36.6%	265.4%	29.2%	138.7%	-29.1%	14.1%	2.8M	-771.8M	-2.4M	0.23	5.79	542,323	127,397	2,202,910	1,171,353
2025-10-03	$8.25	$7.50	137.7%	35.4%	263.3%	30.0%	137.6%	-27.8%	14.2%	4.1M	-853.6M	-2.4M	0.44	6.90	959,542	425,461	2,270,518	1,185,303
2025-10-06	$9.46	$5.00	164.0%	46.6%	264.1%	40.0%	168.6%	52.4%	-4.3%	6.7M	-1.19B	-2.6M	0.27	7.43	854,876	228,801	1,971,278	1,015,924
2025-10-07	$9.21	$5.00	154.6%	44.5%	264.6%	36.4%	161.5%	-35.3%	2.0%	9.2M	-1.14B	-2.6M	0.35	3.72	470,956	164,519	2,117,068	1,054,411
2025-10-08	$8.55	$5.00	163.3%	47.0%	265.0%	39.7%	171.2%	-37.0%	-1.6%	6.7M	-964.5M	-2.6M	0.31	3.42	522,966	164,564	2,200,538	1,097,176
2025-10-09	$8.27	$5.00	159.6%	43.0%	140.9%	38.3%	162.6%	-37.6%	-3.2%	5.3M	-853.8M	-2.5M	0.33	4.06	457,280	150,827	2,318,712	1,133,471
2025-10-10	$7.71	$5.00	145.1%	41.7%	133.7%	32.8%	158.1%	-31.4%	0.7%	3.8M	-648.9M	-2.4M	0.56	10.62	753,335	424,779	2,372,538	1,163,144
2025-10-13	$7.30	$5.00	141.3%	38.8%	133.7%	31.4%	151.4%	-35.1%	-6.1%	2.1M	-605.9M	-2.3M	0.31	7.38	322,359	100,092	2,055,977	1,056,570
2025-10-14	$7.58	$5.00	147.0%	42.8%	134.2%	33.6%	160.4%	-34.6%	2.5%	3.2M	-700.7M	-2.4M	0.23	10.12	384,925	88,811	2,137,724	1,089,546
2025-10-15	$7.41	$5.00	149.4%	41.2%	124.8%	34.4%	161.8%	-33.3%	-5.6%	2.6M	-646.5M	-2.4M	0.47	7.20	351,709	166,908	2,219,775	1,102,329
2025-10-16	$7.08	$5.00	151.6%	41.5%	125.2%	35.3%	158.7%	-35.5%	-9.9%	713.3K	-539.8M	-2.2M	0.34	6.75	253,681	85,187	2,222,000	1,111,360
2025-10-17	$7.04	$5.50	141.1%	40.0%	124.3%	31.3%	152.3%	-20.2%	3.7%	-818.8K	-517.1M	-2.2M	0.46	7.04	281,861	129,543	2,259,900	1,119,323
2025-10-20	$7.38	$5.50	133.6%	38.0%	120.7%	28.5%	145.8%	-27.8%	-3.1%	3.5M	-648.4M	-2.3M	0.18	6.65	248,459	45,630	1,781,035	741,947
2025-10-21	$6.96	$5.50	135.5%	38.8%	103.4%	29.2%	148.0%	-30.9%	-7.4%	3.1M	-566.2M	-2.2M	0.23	10.67	225,959	50,952	1,863,724	758,413
2025-10-22	$6.81	$5.50	139.7%	40.0%	87.8%	30.8%	153.1%	-29.4%	-0.7%	2.9M	-549.6M	-2.2M	0.31	13.99	409,914	128,333	1,899,423	769,089
2025-10-23	$7.08	$5.50	140.4%	40.5%	80.3%	31.1%	150.0%	-25.0%	-7.6%	4.7M	-628.3M	-2.3M	0.20	10.45	263,139	53,510	1,985,246	794,304
2025-10-24	$8.07	$5.50	158.5%	45.9%	94.4%	37.9%	168.3%	-31.4%	-7.6%	10.7M	-915.8M	-2.5M	0.22	10.50	867,897	188,487	1,999,586	801,028
2025-10-27	$8.29	$6.00	145.1%	43.4%	92.9%	32.8%	156.1%	-25.5%	4.5%	6.4M	-886.9M	-2.5M	0.22	18.00	333,598	74,732	1,902,436	715,361
2025-10-28	$7.97	$6.00	146.6%	43.7%	93.4%	33.4%	158.4%	-23.5%	-3.1%	6.5M	-833.1M	-2.5M	0.19	17.17	261,620	50,484	1,989,213	738,857
2025-10-29	$7.70	$6.00	143.7%	43.4%	94.2%	32.3%	162.6%	-19.9%	-0.2%	5.5M	-751.8M	-2.4M	0.14	17.35	335,209	46,291	2,021,366	752,768
2025-10-30	$7.28	$6.00	139.2%	41.6%	96.1%	30.6%	155.7%	-19.6%	5.2%	3.6M	-640.1M	-2.3M	0.33	15.85	243,171	80,148	2,084,758	758,890
2025-10-31	$7.72	$6.00	141.2%	41.1%	98.1%	31.4%	152.2%	-20.6%	-10.5%	4.0M	-767.4M	-2.4M	0.32	12.83	303,519	96,625	2,119,621	773,414