BX Options History — August 2018

In August 2018, BX traded between $34.76 and $36.98. ATM implied volatility averaged 18.0%, placing in the 9.8% IV rank vs the trailing year. The 30-day expected move averaged 5.2%. IV traded above realized volatility by 1.5% (HV 20d: 16.6%). Max pain ranged from $34.00 to $36.00. Net GEX was positive for 23 of 23 trading days. Term structure was in contango for 17 of 23 days. Put/call ratio averaged 0.75.

Notable Days

2018-08-20: Highest Volume — 18,730 contracts
2018-08-13: Largest IV spike — 6.1% change
2018-08-01: Highest IV Rank — 14.0%
2018-08-15: Largest Expected Move — 5.8%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$36.02	$34.76	$36.98	$34.76	$36.97
Max Pain	$34.26	$34.00	$36.00	$36.00	$34.00
ATM IV	18.0%	16.8%	18.9%	18.7%	18.1%
Expected Move	5.2%	4.9%	5.8%	5.1%	5.1%
HV 20d	16.6%	14.1%	19.0%	17.4%	17.1%
HV 60d	18.5%	17.9%	19.5%	18.2%	18.5%
IV Rank	9.8%	5.2%	14.0%	14.0%	9.6%
IV Percentile	16.1%	2.4%	27.4%	24.2%	18.7%
Term Structure	0.3%	-0.6%	1.8%	-0.0%	0.5%
VWIV	19.0%	17.6%	21.1%	18.2%	18.1%
Skew 25d	2.0%	1.6%	2.9%	2.3%	1.8%
Skew 10d	4.3%	3.3%	5.5%	4.2%	4.0%
Call IV 25d	17.7%	15.7%	18.7%	18.5%	17.6%
Put IV 25d	19.7%	18.2%	20.8%	20.8%	19.4%
Bid-Ask Spread %	12.60	6.19	39.83	39.83	9.22
Gamma HHI	0.18	0.15	0.21	0.18	0.19
Net GEX	19.5M	12.3M	25.2M	12.9M	25.2M
Net DEX	-442.9M	-539.7M	-316.3M	-316.3M	-530.9M
Net VEX	-3.3M	-3.4M	-3.1M	-3.3M	-3.2M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.75	0.41	1.26	0.51	1.12
Total Volume	12,670.13	9,078	18,730	15,741	9,301
Total OI	432,821.87	422,962	447,783	429,762	433,682

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
2018-08-01	$34.76	$36.00	18.7%	5.1%	17.4%	14.0%	18.2%	2.3%	-0.0%	12.9M	-316.3M	-3.3M	0.51	39.83	N/A	N/A	10,397	5,344	285,289	144,473
2018-08-02	$34.76	$36.00	18.6%	5.0%	14.6%	13.5%	18.0%	2.2%	-0.4%	12.3M	-319.7M	-3.3M	0.60	13.73	N/A	N/A	8,415	5,039	285,645	146,690
2018-08-03	$34.93	$36.00	17.7%	4.9%	14.3%	10.5%	17.6%	2.3%	-0.2%	15.4M	-335.3M	-3.3M	0.59	14.50	N/A	N/A	6,706	3,986	285,614	147,074
2018-08-06	$35.33	$34.00	16.8%	5.3%	14.1%	7.3%	19.7%	2.9%	0.8%	15.4M	-372.6M	-3.3M	0.68	8.60	N/A	N/A	8,434	5,738	283,670	146,071
2018-08-07	$35.60	$34.00	16.9%	5.1%	14.4%	6.1%	18.5%	1.7%	0.6%	17.7M	-406.0M	-3.4M	0.91	11.96	N/A	N/A	6,221	5,647	287,025	146,939
2018-08-08	$36.03	$34.00	16.9%	5.0%	14.6%	5.2%	18.0%	1.9%	0.1%	20.9M	-451.3M	-3.4M	0.52	7.59	N/A	N/A	8,637	4,500	288,071	147,784
2018-08-09	$35.74	$34.00	17.5%	5.1%	14.8%	7.5%	19.3%	2.4%	0.6%	19.6M	-423.9M	-3.3M	0.69	12.10	N/A	N/A	6,635	4,608	289,201	148,202
2018-08-10	$35.36	$34.00	17.5%	5.3%	15.1%	7.3%	20.1%	2.0%	0.0%	16.8M	-383.4M	-3.4M	0.90	20.11	N/A	N/A	6,222	5,623	290,038	148,716
2018-08-13	$35.07	$34.00	18.5%	5.4%	15.4%	11.2%	19.2%	2.0%	0.2%	14.7M	-342.2M	-3.3M	1.26	10.35	N/A	N/A	5,227	6,611	287,386	147,652
2018-08-14	$35.94	$34.00	18.1%	5.4%	17.4%	9.7%	19.7%	1.6%	0.6%	19.5M	-432.0M	-3.3M	0.69	11.77	N/A	N/A	9,571	6,620	287,945	149,277
2018-08-15	$35.46	$34.00	18.6%	5.8%	17.1%	11.4%	21.1%	1.8%	1.8%	18.1M	-380.6M	-3.3M	0.51	7.49	N/A	N/A	6,703	3,414	290,887	150,152
2018-08-16	$35.92	$34.00	18.9%	5.6%	16.8%	12.5%	20.4%	1.8%	0.7%	20.9M	-437.4M	-3.4M	0.50	10.00	N/A	N/A	10,259	5,139	293,289	150,277
2018-08-17	$36.24	$34.00	18.3%	5.4%	16.9%	10.2%	19.5%	1.7%	0.9%	22.3M	-480.6M	-3.3M	1.15	6.19	N/A	N/A	6,874	7,916	298,041	149,742
2018-08-20	$36.98	$34.00	17.8%	5.2%	18.3%	8.3%	18.9%	1.7%	0.0%	21.2M	-539.7M	-3.3M	0.41	7.54	N/A	N/A	13,237	5,493	286,170	136,792
2018-08-21	$36.48	$34.00	18.1%	5.2%	19.0%	9.6%	18.4%	2.5%	-0.0%	21.2M	-486.7M	-3.3M	0.83	11.51	N/A	N/A	7,024	5,817	289,501	137,137
2018-08-22	$36.41	$34.00	18.6%	5.3%	19.0%	11.3%	18.8%	2.2%	-0.6%	20.0M	-475.7M	-3.2M	0.69	15.69	N/A	N/A	5,365	3,713	288,956	138,449
2018-08-23	$36.39	$34.00	18.5%	5.3%	19.0%	11.0%	18.9%	1.9%	0.3%	20.3M	-480.7M	-3.2M	0.78	12.41	N/A	N/A	6,113	4,744	289,958	138,731
2018-08-24	$36.74	$34.00	18.5%	5.3%	17.7%	10.9%	18.4%	1.8%	0.1%	23.3M	-513.1M	-3.3M	0.69	9.39	N/A	N/A	5,643	3,894	291,162	138,831
2018-08-27	$36.79	$34.00	17.9%	5.2%	17.2%	8.7%	18.5%	1.7%	0.4%	22.5M	-518.8M	-3.3M	0.61	12.93	N/A	N/A	6,771	4,158	289,280	136,137
2018-08-28	$36.73	$34.00	18.2%	5.3%	17.2%	10.0%	18.8%	2.2%	0.2%	22.7M	-510.9M	-3.2M	0.82	9.06	N/A	N/A	5,844	4,817	289,551	136,677
2018-08-29	$36.97	$34.00	17.8%	5.1%	17.0%	8.4%	19.0%	2.1%	0.7%	23.3M	-534.6M	-3.1M	0.90	6.98	N/A	N/A	8,756	7,845	289,578	137,141
2018-08-30	$36.83	$34.00	18.4%	5.2%	17.1%	10.7%	19.0%	2.1%	-0.1%	23.0M	-514.7M	-3.2M	0.75	20.85	N/A	N/A	7,100	5,292	291,486	140,534
2018-08-31	$36.97	$34.00	18.1%	5.1%	17.1%	9.6%	18.1%	1.8%	0.5%	25.2M	-530.9M	-3.2M	1.12	9.22	N/A	N/A	4,382	4,919	292,620	141,062