COR Options History — October 2025

In October 2025, COR traded between $304.18 and $341.24. ATM implied volatility averaged 29.4%, placing in the 48.6% IV rank vs the trailing year. The 30-day expected move averaged 8.5%. IV traded above realized volatility by 6.7% (HV 20d: 22.7%). Max pain ranged from $290.00 to $300.00. Net GEX was positive for 23 of 23 trading days. Term structure was in contango for 3 of 23 days. Put/call ratio averaged 1.84.

Notable Days

2025-10-13: Highest Volume — 9,802 contracts
2025-10-13: Largest IV spike — 10.8% change
2025-10-31: Highest IV Rank — 61.2%
2025-10-31: Largest Expected Move — 9.5%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$322.46	$304.18	$341.24	$313.01	$338.12
Max Pain	$297.83	$290.00	$300.00	$300.00	$300.00
ATM IV	29.4%	25.7%	33.2%	26.8%	33.2%
Expected Move	8.5%	7.4%	9.5%	7.7%	9.5%
HV 20d	22.7%	12.8%	30.0%	29.1%	12.8%
HV 60d	25.3%	24.1%	25.6%	25.2%	24.1%
IV Rank	48.6%	36.0%	61.2%	39.7%	61.2%
IV Percentile	84.7%	73.0%	93.7%	76.6%	93.7%
Term Structure	-2.3%	-5.0%	2.2%	0.3%	-5.0%
VWIV	29.5%	25.9%	33.0%	25.9%	33.0%
Skew 25d	4.4%	1.1%	6.9%	4.5%	1.1%
Skew 10d	9.9%	4.1%	20.3%	7.9%	4.1%
Call IV 25d	26.8%	23.4%	32.4%	23.4%	32.4%
Put IV 25d	31.1%	27.5%	34.3%	27.8%	33.5%
Bid-Ask Spread %	80.66	74.73	90.65	88.68	77.38
Gamma HHI	0.25	0.14	0.39	0.24	0.14
Net GEX	9.9M	4.9M	14.4M	12.0M	5.3M
Net DEX	-493.9M	-551.1M	-392.9M	-467.0M	-512.2M
Net VEX	-1.0M	-1.2M	-821.2K	-1.0M	-868.3K
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	1.84	0.05	7.39	1.05	1.04
Total Volume	1,352.739	45	9,802	854	278
Total OI	35,973.348	30,916	41,125	38,335	31,970

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	$313.01	$300.00	26.8%	7.7%	29.1%	39.7%	25.9%	4.5%	0.3%	12.0M	-467.0M	-1.0M	1.05	88.68	N/A	N/A	417	437	21,840	16,495
2025-10-02	$308.79	$300.00	25.7%	7.4%	29.4%	36.0%	26.7%	2.9%	2.2%	12.0M	-437.8M	-1.1M	0.55	88.25	N/A	N/A	300	164	22,138	16,777
2025-10-03	$304.18	$300.00	27.3%	7.8%	30.0%	41.5%	27.6%	3.6%	0.1%	11.3M	-392.9M	-1.2M	1.30	90.65	N/A	N/A	60	78	22,156	16,901
2025-10-06	$305.02	$290.00	28.0%	8.0%	29.5%	43.7%	27.1%	4.7%	-1.1%	11.4M	-395.4M	-1.1M	0.05	78.52	N/A	N/A	1,597	75	22,156	16,913
2025-10-07	$307.81	$290.00	27.4%	8.2%	29.6%	41.7%	27.3%	4.1%	-2.5%	14.0M	-438.0M	-1.2M	0.46	78.90	N/A	N/A	54	25	23,706	16,955
2025-10-08	$310.28	$290.00	27.6%	8.0%	29.5%	42.6%	28.1%	5.7%	-1.0%	14.0M	-462.1M	-1.1M	0.55	78.62	N/A	N/A	29	16	23,737	16,966
2025-10-09	$313.65	$290.00	28.1%	8.4%	28.8%	44.1%	31.3%	6.5%	-3.2%	14.4M	-490.0M	-1.1M	7.39	81.04	N/A	N/A	41	303	23,745	16,978
2025-10-10	$317.98	$290.00	27.9%	8.6%	29.1%	43.4%	29.1%	4.0%	-1.8%	13.9M	-517.4M	-1.1M	0.44	76.12	N/A	N/A	149	66	23,745	17,247
2025-10-13	$317.70	$300.00	30.9%	8.5%	25.9%	53.5%	30.4%	3.3%	-2.2%	14.2M	-523.8M	-1.1M	5.35	78.58	N/A	N/A	1,544	8,258	23,828	17,297
2025-10-14	$317.23	$300.00	32.3%	8.8%	25.5%	58.1%	29.3%	4.7%	-2.6%	11.4M	-490.8M	-1.1M	0.34	80.02	N/A	N/A	292	99	22,354	18,302
2025-10-15	$319.93	$300.00	30.7%	8.8%	25.2%	52.7%	30.7%	3.7%	-2.6%	10.8M	-495.7M	-1.1M	7.25	74.73	N/A	N/A	981	7,110	22,222	18,482
2025-10-16	$320.76	$300.00	29.7%	8.5%	25.2%	49.6%	30.5%	4.5%	-3.1%	11.0M	-519.8M	-982.2K	0.12	75.45	N/A	N/A	897	107	22,474	11,533
2025-10-17	$325.05	$300.00	27.7%	7.9%	25.4%	42.9%	28.7%	4.5%	-1.4%	9.5M	-551.1M	-934.0K	0.81	79.21	N/A	N/A	214	173	22,521	11,529
2025-10-20	$327.81	$300.00	27.9%	8.0%	25.0%	43.3%	28.1%	5.5%	-2.7%	9.5M	-520.3M	-910.9K	0.06	78.76	N/A	N/A	1,704	96	20,933	10,500
2025-10-21	$327.95	$300.00	28.6%	8.2%	20.8%	45.8%	29.2%	4.9%	-3.3%	8.0M	-505.0M	-948.1K	5.55	80.79	N/A	N/A	202	1,122	20,366	10,550
2025-10-22	$331.50	$300.00	30.7%	8.8%	19.9%	52.9%	29.6%	6.9%	-3.5%	6.8M	-550.5M	-960.7K	0.29	84.68	N/A	N/A	248	72	21,476	11,655
2025-10-23	$329.64	$300.00	29.7%	8.5%	14.9%	49.4%	29.5%	5.5%	-2.9%	6.7M	-490.1M	-932.7K	0.67	84.54	N/A	N/A	103	69	19,850	11,681
2025-10-24	$332.73	$300.00	29.9%	8.6%	12.9%	50.3%	29.6%	6.0%	-3.4%	6.6M	-506.5M	-904.3K	0.73	83.62	N/A	N/A	217	158	19,885	11,826
2025-10-27	$335.56	$300.00	30.3%	8.7%	12.9%	51.6%	30.3%	4.8%	-3.1%	6.4M	-523.2M	-852.2K	4.56	77.78	N/A	N/A	84	383	19,911	11,918
2025-10-28	$336.98	$300.00	30.7%	8.8%	12.8%	52.7%	29.9%	4.9%	-2.7%	6.0M	-525.5M	-852.3K	1.39	78.74	N/A	N/A	155	215	19,887	12,107
2025-10-29	$333.67	$300.00	33.1%	9.5%	13.7%	60.9%	32.8%	1.5%	-4.2%	6.1M	-512.7M	-850.6K	0.05	83.26	N/A	N/A	1,975	92	19,866	12,275
2025-10-30	$341.24	$300.00	32.6%	9.4%	13.8%	59.3%	33.0%	2.3%	-2.8%	4.9M	-531.0M	-821.2K	2.34	76.94	N/A	N/A	136	318	19,390	12,344
2025-10-31	$338.12	$300.00	33.2%	9.5%	12.8%	61.2%	33.0%	1.1%	-5.0%	5.3M	-512.2M	-868.3K	1.04	77.38	N/A	N/A	136	142	19,429	12,541