GS Options History — October 2018

In October 2018, GS traded between $211.39 and $227.85. ATM implied volatility averaged 25.5%, placing in the 56.6% IV rank vs the trailing year. The 30-day expected move averaged 7.5%. IV traded above realized volatility by 4.0% (HV 20d: 21.5%). Max pain ranged from $225.00 to $230.00. Net GEX was positive for 8 of 23 trading days. Term structure was in contango for 5 of 23 days. Put/call ratio averaged 0.68.

Notable Days

2018-10-17: Highest Volume — 70,778 contracts
2018-10-10: Largest IV spike — 20.0% change
2018-10-11: Highest IV Rank — 91.4%
2018-10-29: Largest Expected Move — 9.9%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$220.89	$211.39	$227.85	$225.25	$226.84
Max Pain	$227.17	$225.00	$230.00	$230.00	$225.00
ATM IV	25.5%	21.3%	32.2%	21.3%	25.6%
Expected Move	7.5%	6.3%	9.9%	6.3%	8.0%
HV 20d	21.5%	16.4%	31.0%	16.4%	31.0%
HV 60d	18.2%	15.6%	22.7%	16.7%	22.7%
IV Rank	56.6%	34.4%	91.4%	34.4%	57.1%
IV Percentile	84.2%	63.1%	98.8%	63.1%	86.9%
Term Structure	-0.6%	-1.6%	0.4%	0.2%	-0.5%
VWIV	26.4%	22.2%	35.2%	22.3%	29.0%
Skew 25d	3.5%	1.6%	5.8%	1.7%	4.8%
Skew 10d	6.5%	0.9%	11.5%	2.9%	8.3%
Call IV 25d	24.1%	20.4%	31.3%	20.7%	23.7%
Put IV 25d	27.7%	22.4%	34.9%	22.4%	28.5%
Bid-Ask Spread %	8.73	4.83	20.94	5.66	7.10
Gamma HHI	0.07	0.06	0.12	0.07	0.06
Net GEX	-3.3M	-36.7M	47.6M	-5.9M	13.5M
Net DEX	471.8M	-233.9M	1.13B	392.3M	-126.8M
Net VEX	-7.9M	-8.7M	-7.3M	-8.2M	-7.8M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.68	0.37	0.95	0.43	0.86
Total Volume	38,387	23,372	70,778	31,375	43,838
Total OI	326,888.87	274,932	375,084	322,826	290,744

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
2018-10-01	$225.25	$230.00	21.3%	6.3%	16.4%	34.4%	22.3%	1.7%	0.2%	-5.9M	392.3M	-8.2M	0.43	5.66	21,955	9,420	171,168	151,658
2018-10-02	$226.04	$230.00	21.5%	6.4%	16.6%	35.7%	22.7%	1.6%	0.3%	5.8M	294.2M	-8.4M	0.39	4.83	22,831	8,862	175,941	153,364
2018-10-03	$227.85	$230.00	21.8%	6.6%	17.0%	37.0%	23.3%	1.6%	0.4%	35.5M	52.3M	-8.6M	0.37	5.84	35,327	12,961	182,630	154,824
2018-10-04	$227.23	$230.00	23.3%	6.7%	16.8%	45.1%	23.2%	2.2%	0.1%	31.0M	141.1M	-8.7M	0.38	8.61	31,059	11,733	186,886	157,409
2018-10-05	$225.06	$230.00	23.8%	6.7%	17.0%	47.5%	23.4%	2.6%	-0.0%	-367.3K	407.4M	-8.4M	0.54	9.50	23,616	12,686	189,500	158,809
2018-10-08	$225.73	$230.00	23.8%	6.7%	16.8%	47.8%	23.9%	2.6%	-0.2%	565.8K	311.7M	-8.2M	0.69	6.18	16,370	11,305	176,054	154,528
2018-10-09	$223.18	$230.00	24.4%	6.8%	17.1%	50.8%	24.1%	2.4%	-0.8%	-16.1M	542.6M	-8.0M	0.67	5.78	18,194	12,131	181,293	158,118
2018-10-10	$216.14	$230.00	29.3%	8.2%	20.1%	76.5%	27.9%	3.3%	-0.6%	-36.7M	1.03B	-7.7M	0.57	12.55	24,498	14,086	184,084	158,354
2018-10-11	$213.77	$230.00	32.2%	8.9%	20.2%	91.4%	30.5%	3.6%	-1.5%	-33.2M	1.13B	-7.6M	0.59	20.94	33,832	19,995	190,136	160,333
2018-10-12	$213.50	$230.00	29.2%	8.1%	20.1%	75.8%	28.2%	3.6%	-1.6%	-26.7M	1.12B	-7.6M	0.70	8.21	22,795	15,865	200,915	161,268
2018-10-15	$216.52	$225.00	27.1%	7.7%	21.0%	65.1%	26.0%	3.4%	-1.4%	-22.7M	829.6M	-7.5M	0.78	8.14	21,316	16,677	187,071	155,447
2018-10-16	$221.63	$225.00	22.3%	6.4%	22.7%	39.9%	22.2%	3.6%	-0.9%	-5.9M	431.6M	-7.6M	0.82	7.97	37,261	30,495	194,204	160,508
2018-10-17	$227.11	$225.00	22.2%	6.4%	21.5%	39.3%	22.4%	3.7%	-1.0%	47.6M	-233.9M	-7.7M	0.60	6.31	44,113	26,665	199,614	163,339
2018-10-18	$224.88	$225.00	23.4%	6.8%	21.5%	45.6%	24.1%	3.8%	-0.8%	20.5M	101.0M	-7.9M	0.73	7.87	25,159	18,298	202,644	168,421
2018-10-19	$227.07	$225.00	22.9%	6.7%	21.8%	42.9%	23.4%	4.0%	-1.2%	38.1M	-171.5M	-7.9M	0.95	8.39	21,145	19,998	204,474	170,610
2018-10-22	$222.40	$225.00	23.5%	7.0%	22.5%	46.0%	24.2%	3.8%	0.2%	-8.5M	341.1M	-7.7M	0.73	5.94	16,584	12,066	136,915	138,017
2018-10-23	$218.95	$225.00	24.7%	7.5%	23.0%	52.2%	26.3%	3.9%	-0.1%	-17.4M	572.9M	-7.7M	0.95	8.53	16,667	15,849	142,321	141,190
2018-10-24	$211.39	$225.00	27.5%	8.5%	25.4%	67.2%	29.6%	4.5%	-0.3%	-30.1M	978.5M	-7.3M	0.76	11.04	16,247	12,273	145,811	144,708
2018-10-25	$214.68	$225.00	27.0%	8.3%	26.3%	64.2%	29.3%	4.4%	-0.2%	-21.6M	746.8M	-7.5M	0.63	6.93	17,320	10,988	149,231	144,757
2018-10-26	$213.60	$225.00	30.4%	9.3%	25.9%	82.0%	32.3%	5.1%	-1.0%	-14.8M	760.2M	-7.5M	0.80	11.98	18,301	14,567	152,280	146,518
2018-10-29	$212.60	$225.00	31.1%	9.9%	25.8%	85.7%	35.2%	5.8%	-1.3%	-19.4M	778.7M	-7.4M	0.84	13.51	13,127	11,054	140,543	143,268
2018-10-30	$219.14	$225.00	28.5%	9.1%	28.3%	72.2%	32.5%	5.2%	-0.8%	-9.1M	417.1M	-7.7M	0.94	8.92	12,059	11,313	142,371	146,166
2018-10-31	$226.84	$225.00	25.6%	8.0%	31.0%	57.1%	29.0%	4.8%	-0.5%	13.5M	-126.8M	-7.8M	0.86	7.10	23,597	20,241	143,334	147,410