OPK Options History — May 2016

In May 2016, OPK traded between $9.54 and $10.64. ATM implied volatility averaged 49.6%, placing in the 30.1% IV rank vs the trailing year. The 30-day expected move averaged 13.9%. IV traded above realized volatility by 12.4% (HV 20d: 37.2%). Max pain ranged from $10.50 to $15.00. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 10 of 21 days. Put/call ratio averaged 0.82.

Notable Days

2016-05-05: Highest Volume — 15,138 contracts
2016-05-27: Largest IV spike — 40.9% change
2016-05-27: Highest IV Rank — 49.5%
2016-05-04: Largest Expected Move — 16.3%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$10.11	$9.54	$10.64	$10.46	$10.64
Max Pain	$14.36	$10.50	$15.00	$10.50	$15.00
ATM IV	49.6%	42.3%	59.5%	46.2%	43.2%
Expected Move	13.9%	10.6%	16.3%	15.4%	11.7%
HV 20d	37.2%	24.1%	44.1%	24.1%	43.2%
HV 60d	43.9%	42.5%	46.6%	45.6%	42.8%
IV Rank	30.1%	15.7%	49.5%	23.4%	17.5%
IV Percentile	38.6%	13.1%	75.0%	25.0%	14.3%
Term Structure	2.8%	-6.5%	57.1%	10.2%	57.1%
VWIV	50.5%	39.3%	60.8%	52.9%	40.1%
Skew 25d	6.8%	-6.2%	56.7%	4.5%	1.3%
Skew 10d	14.4%	-7.8%	29.8%	-7.8%	11.5%
Call IV 25d	47.5%	38.9%	59.1%	43.6%	43.0%
Put IV 25d	54.4%	44.3%	101.7%	48.1%	44.3%
Bid-Ask Spread %	79.82	23.86	101.81	93.09	23.86
Gamma HHI	0.22	0.17	0.29	0.18	0.28
Net GEX	988.0K	718.0K	1.4M	958.2K	1.4M
Net DEX	65.6M	54.0M	73.6M	59.7M	59.4M
Net VEX	-553.3K	-616.8K	-512.2K	-611.1K	-526.1K
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.82	0.51	1.75	1.04	0.62
Total Volume	10,013.81	5,695	15,138	10,063	5,695
Total OI	434,544.429	424,906	442,195	424,906	429,321

Daily Data (21 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
2016-05-02	$10.46	$10.50	46.2%	15.4%	24.1%	23.4%	52.9%	4.5%	10.2%	958.2K	59.7M	-611.1K	1.04	93.09	N/A	N/A	4,928	5,135	255,900	169,006
2016-05-03	$10.38	$10.50	51.1%	14.7%	24.1%	33.0%	53.2%	6.6%	-4.9%	991.2K	61.1M	-598.9K	0.93	97.75	N/A	N/A	6,152	5,706	257,642	169,391
2016-05-04	$9.82	$10.50	48.1%	16.3%	28.4%	27.0%	51.1%	4.8%	-1.7%	795.0K	71.3M	-547.6K	1.04	101.81	N/A	N/A	5,902	6,148	259,208	170,225
2016-05-05	$9.76	$15.00	50.0%	15.0%	28.3%	30.8%	52.5%	-6.2%	-0.6%	771.2K	68.1M	-567.5K	0.59	82.60	N/A	N/A	9,528	5,610	260,205	170,908
2016-05-06	$9.72	$15.00	50.5%	15.4%	28.0%	31.8%	58.1%	3.2%	1.1%	796.4K	70.0M	-560.7K	1.03	79.60	N/A	N/A	4,391	4,535	265,271	171,156
2016-05-09	$10.22	$15.00	56.2%	15.9%	34.1%	42.9%	60.8%	6.8%	-1.0%	995.1K	57.6M	-611.7K	0.71	72.31	N/A	N/A	7,672	5,478	264,596	169,861
2016-05-10	$10.39	$15.00	50.9%	14.4%	34.8%	32.5%	59.8%	-4.4%	-2.2%	1.2M	54.0M	-616.8K	0.97	78.57	N/A	N/A	6,356	6,185	268,485	170,288
2016-05-11	$9.95	$15.00	48.8%	14.7%	37.0%	28.5%	60.5%	6.7%	3.0%	1.0M	64.8M	-560.5K	1.12	75.52	N/A	N/A	5,266	5,890	269,425	170,272
2016-05-12	$9.54	$15.00	56.8%	15.7%	39.2%	44.1%	55.5%	2.9%	-5.1%	718.0K	72.7M	-520.1K	0.83	76.37	N/A	N/A	5,742	4,742	269,247	170,747
2016-05-13	$9.75	$15.00	53.1%	14.4%	40.4%	37.0%	53.6%	9.9%	-6.5%	865.1K	70.5M	-551.3K	0.59	76.25	N/A	N/A	5,908	3,498	269,714	171,255
2016-05-16	$9.95	$15.00	52.3%	14.9%	40.5%	35.4%	52.3%	5.0%	1.2%	934.9K	71.3M	-520.0K	0.51	77.96	N/A	N/A	5,981	3,060	267,536	170,722
2016-05-17	$10.01	$15.00	51.6%	15.0%	40.6%	34.0%	52.5%	4.5%	4.9%	974.9K	68.5M	-538.2K	0.56	84.77	N/A	N/A	5,060	2,852	268,711	170,899
2016-05-18	$9.98	$15.00	50.2%	14.4%	40.3%	31.1%	52.5%	5.1%	1.3%	1.0M	69.2M	-535.2K	1.75	71.95	N/A	N/A	4,680	8,207	269,035	171,089
2016-05-19	$9.81	$15.00	48.0%	13.7%	39.4%	26.9%	47.5%	7.6%	-1.1%	971.9K	73.6M	-512.2K	0.73	74.76	N/A	N/A	6,770	4,913	269,431	172,673
2016-05-20	$10.15	$15.00	47.6%	13.1%	42.0%	26.1%	45.8%	4.9%	5.9%	890.0K	67.6M	-531.6K	0.77	76.01	N/A	N/A	6,970	5,373	268,908	173,287
2016-05-23	$10.05	$15.00	49.4%	13.0%	41.9%	29.6%	44.8%	2.0%	0.3%	927.2K	69.9M	-523.3K	1.11	80.24	N/A	N/A	4,312	4,798	258,080	169,819
2016-05-24	$10.42	$15.00	43.6%	12.0%	44.1%	18.2%	42.7%	7.1%	-1.9%	1.1M	64.6M	-531.5K	0.53	85.49	N/A	N/A	4,693	2,475	259,127	170,352
2016-05-25	$10.53	$15.00	42.6%	10.9%	43.5%	16.4%	39.3%	9.1%	6.6%	1.1M	59.9M	-552.0K	0.53	86.82	N/A	N/A	4,889	2,583	259,549	170,747
2016-05-26	$10.45	$15.00	42.3%	10.8%	43.4%	15.7%	42.0%	5.4%	-3.9%	1.2M	57.1M	-574.4K	0.67	89.61	N/A	N/A	3,650	2,445	260,474	170,952
2016-05-27	$10.41	$15.00	59.5%	10.6%	43.4%	49.5%	43.5%	56.7%	-4.5%	1.2M	65.6M	-528.1K	0.60	90.98	N/A	N/A	3,830	2,282	260,897	171,022
2016-05-31	$10.64	$15.00	43.2%	11.7%	43.2%	17.5%	40.1%	1.3%	57.1%	1.4M	59.4M	-526.1K	0.62	23.86	N/A	N/A	3,518	2,177	259,004	170,317