COST Options History — January 2025

In January 2025, COST traded between $909.25 and $980.83. ATM implied volatility averaged 19.5%, placing in the 24.6% IV rank vs the trailing year. The 30-day expected move averaged 5.6%. IV traded above realized volatility by 4.1% (HV 20d: 15.4%). Max pain ranged from $850.00 to $940.00. Net GEX was positive for 10 of 20 trading days. Term structure was in contango for 13 of 20 days. Put/call ratio averaged 0.70.

Notable Days

2025-01-10: Highest Volume — 69,544 contracts
2025-01-15: Largest IV drop — 9.4% change
2025-01-13: Highest IV Rank — 35.8%
2025-01-13: Largest Expected Move — 6.0%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$938.56	$909.25	$980.83	$909.25	$980.83
Max Pain	$924.75	$850.00	$940.00	$855.00	$940.00
ATM IV	19.5%	17.9%	21.6%	19.8%	21.6%
Expected Move	5.6%	5.1%	6.0%	5.7%	5.7%
HV 20d	15.4%	13.4%	18.3%	13.7%	15.2%
HV 60d	17.3%	16.5%	18.1%	17.6%	18.0%
IV Rank	24.6%	13.3%	35.8%	28.3%	35.1%
IV Percentile	33.4%	17.5%	50.0%	36.9%	50.0%
Term Structure	1.3%	-0.3%	4.9%	0.9%	4.6%
VWIV	19.7%	18.2%	21.2%	19.8%	20.9%
Skew 25d	1.6%	1.0%	2.1%	1.2%	1.4%
Skew 10d	3.2%	-6.1%	4.8%	4.8%	3.1%
Call IV 25d	18.7%	17.2%	20.3%	19.4%	19.3%
Put IV 25d	20.3%	18.9%	22.3%	20.6%	20.7%
Bid-Ask Spread %	54.00	43.60	62.78	62.25	59.69
Gamma HHI	0.05	0.03	0.17	0.04	0.08
Net GEX	32.9M	-165.0M	288.1M	-165.0M	216.3M
Net DEX	-2.42B	-3.85B	-796.6M	-796.6M	-3.85B
Net VEX	-24.7M	-25.8M	-24.0M	-24.7M	-24.4M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.70	0.29	2.03	1.22	0.49
Total Volume	37,590.75	19,479	69,544	42,041	53,131
Total OI	277,208.45	218,293	328,172	308,393	244,050

Daily Data (20 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
2025-01-02	$909.25	$855.00	19.8%	5.7%	13.7%	28.3%	19.8%	1.2%	0.9%	-165.0M	-796.6M	-24.7M	1.22	62.25	18,945	23,096	138,602	169,791
2025-01-03	$917.30	$850.00	19.6%	5.3%	13.8%	27.2%	18.6%	1.7%	0.9%	-87.3M	-1.68B	-25.3M	0.91	60.74	18,600	16,910	142,673	171,277
2025-01-06	$920.92	$935.00	19.1%	5.6%	14.1%	24.4%	20.0%	1.7%	0.9%	-115.8M	-1.98B	-25.1M	1.04	52.18	17,625	18,358	135,420	169,155
2025-01-07	$920.48	$930.00	20.1%	5.8%	13.4%	30.1%	20.4%	2.1%	0.4%	-124.5M	-1.95B	-25.8M	2.03	55.35	9,763	19,843	140,074	174,596
2025-01-08	$927.29	$930.00	20.0%	5.8%	13.8%	29.7%	20.4%	1.4%	0.2%	-113.2M	-2.49B	-25.6M	0.67	54.25	20,626	13,724	141,841	179,202
2025-01-10	$936.60	$930.00	20.8%	6.0%	14.2%	34.4%	20.9%	1.7%	0.3%	137.4M	-3.47B	-25.7M	0.37	43.60	50,737	18,807	148,810	179,362
2025-01-13	$925.34	$930.00	21.1%	6.0%	14.4%	35.8%	21.2%	2.0%	-0.3%	-39.3M	-2.43B	-25.2M	0.71	45.49	12,153	8,640	134,708	168,271
2025-01-14	$914.13	$930.00	20.8%	5.9%	14.7%	34.4%	20.6%	2.1%	-0.1%	-91.3M	-1.68B	-25.3M	0.76	47.65	15,036	11,454	137,479	170,375
2025-01-15	$924.83	$930.00	18.9%	5.4%	15.5%	21.9%	19.1%	1.8%	0.0%	-25.4M	-2.47B	-25.1M	0.45	48.59	19,436	8,807	139,959	173,478
2025-01-16	$923.29	$930.00	18.8%	5.3%	15.4%	18.7%	19.0%	1.7%	-0.1%	-20.4M	-2.44B	-24.3M	0.65	50.15	12,356	7,972	143,397	175,128
2025-01-17	$939.71	$930.00	18.3%	5.2%	16.9%	16.2%	19.0%	1.5%	-0.0%	175.1M	-3.80B	-24.4M	0.56	50.31	44,241	24,663	144,320	174,683
2025-01-21	$945.06	$930.00	18.6%	5.3%	16.1%	17.8%	19.0%	1.7%	-0.0%	103.8M	-2.00B	-24.3M	0.50	50.34	28,995	14,419	98,654	119,639
2025-01-22	$942.12	$930.00	18.4%	5.3%	15.9%	16.6%	18.7%	1.7%	-0.2%	73.7M	-1.77B	-24.3M	0.62	51.32	13,298	8,222	102,822	123,383
2025-01-23	$942.19	$935.00	18.1%	5.2%	15.9%	14.9%	18.7%	1.5%	-0.1%	71.0M	-1.77B	-24.3M	0.78	55.23	10,958	8,521	106,033	126,854
2025-01-24	$937.94	$935.00	17.9%	5.1%	15.7%	13.3%	18.2%	1.7%	0.3%	-10.3M	-1.47B	-24.4M	0.63	54.28	20,716	12,960	108,258	129,009
2025-01-27	$962.91	$935.00	19.3%	5.5%	18.3%	22.0%	19.9%	1.6%	4.1%	99.6M	-2.81B	-24.0M	0.56	59.21	32,672	18,136	97,425	125,677
2025-01-28	$960.86	$935.00	19.2%	5.6%	18.3%	21.3%	19.6%	1.1%	4.3%	112.8M	-2.75B	-24.3M	0.51	56.26	22,063	11,171	101,669	128,133
2025-01-29	$965.49	$935.00	19.5%	5.6%	16.6%	23.2%	19.9%	1.3%	4.7%	172.5M	-3.09B	-24.2M	0.29	60.35	22,292	6,538	106,239	131,115
2025-01-30	$974.72	$940.00	20.3%	5.6%	15.5%	27.6%	19.9%	1.0%	4.9%	288.1M	-3.73B	-24.2M	0.34	62.78	41,785	14,146	110,413	132,195
2025-01-31	$980.83	$940.00	21.6%	5.7%	15.2%	35.1%	20.9%	1.4%	4.6%	216.3M	-3.85B	-24.4M	0.49	59.69	35,569	17,562	109,783	134,267