OPK Options History — September 2015

In September 2015, OPK traded between $8.40 and $11.27. ATM implied volatility averaged 58.2%, placing in the 54.4% IV rank vs the trailing year. The 30-day expected move averaged 17.2%. IV traded below realized volatility by 7.2% (HV 20d: 65.4%). Max pain ranged from $10.00 to $16.00. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 11 of 21 days. Put/call ratio averaged 0.81.

Notable Days

2015-09-02: Highest Volume — 42,417 contracts
2015-09-04: Largest IV spike — 16.7% change
2015-09-01: Highest IV Rank — 71.8%
2015-09-01: Largest Expected Move — 20.5%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$10.02	$8.40	$11.27	$10.78	$8.40
Max Pain	$10.90	$10.00	$16.00	$16.00	$10.00
ATM IV	58.2%	51.3%	68.6%	68.6%	60.8%
Expected Move	17.2%	15.2%	20.5%	20.5%	18.7%
HV 20d	65.4%	49.6%	81.9%	78.9%	54.3%
HV 60d	55.3%	52.9%	58.0%	52.9%	57.4%
IV Rank	54.4%	42.8%	71.8%	71.8%	58.7%
IV Percentile	92.8%	81.3%	98.8%	98.8%	94.8%
Term Structure	0.1%	-8.6%	11.2%	-4.7%	-0.5%
VWIV	58.7%	51.4%	72.2%	72.2%	55.3%
Skew 25d	4.3%	-1.2%	11.2%	3.7%	5.6%
Skew 10d	5.6%	-28.3%	48.0%	11.2%	-20.3%
Call IV 25d	58.7%	50.3%	70.5%	70.5%	60.3%
Put IV 25d	63.0%	55.4%	74.2%	74.2%	65.9%
Bid-Ask Spread %	88.61	82.41	99.88	88.68	93.63
Gamma HHI	0.28	0.18	0.39	0.20	0.38
Net GEX	555.2K	408.0K	725.3K	577.7K	437.4K
Net DEX	116.5M	87.9M	144.1M	121.7M	103.0M
Net VEX	-623.8K	-835.4K	-449.3K	-835.4K	-457.3K
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.81	0.30	2.53	0.83	1.26
Total Volume	24,053.048	2,663	42,417	15,961	15,749
Total OI	547,469.333	480,817	598,562	595,877	501,728

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
2015-09-01	$10.78	$16.00	68.6%	20.5%	78.9%	71.8%	72.2%	3.7%	-4.7%	577.7K	121.7M	-835.4K	0.83	88.68	N/A	N/A	8,743	7,218	341,788	254,089
2015-09-02	$11.27	$16.00	63.5%	19.0%	81.9%	63.3%	69.3%	1.5%	-5.0%	611.2K	122.2M	-812.2K	0.99	90.93	N/A	N/A	21,275	21,142	343,898	254,664
2015-09-03	$10.93	$11.00	54.5%	16.5%	66.2%	48.2%	58.5%	8.6%	-2.7%	592.2K	112.5M	-784.3K	1.03	84.14	N/A	N/A	18,208	18,736	336,082	245,562
2015-09-04	$10.73	$11.00	63.6%	17.0%	66.2%	63.5%	58.6%	-0.4%	-1.9%	616.5K	118.6M	-759.0K	0.42	90.42	N/A	N/A	17,812	7,417	336,454	244,867
2015-09-08	$10.84	$11.00	56.8%	17.2%	66.3%	52.0%	57.7%	7.8%	4.2%	622.5K	121.1M	-731.0K	2.53	86.45	N/A	N/A	5,634	14,232	332,690	242,191
2015-09-09	$10.28	$11.00	56.3%	19.5%	67.7%	51.1%	55.1%	11.2%	11.2%	520.5K	128.5M	-670.3K	0.79	86.58	N/A	N/A	16,750	13,274	336,492	248,946
2015-09-10	$10.56	$11.00	53.0%	15.7%	69.1%	45.7%	57.4%	9.8%	3.2%	489.2K	136.7M	-637.1K	0.66	86.31	N/A	N/A	19,416	12,841	335,033	248,079
2015-09-11	$10.06	$11.00	57.8%	16.8%	70.1%	53.6%	58.3%	-0.1%	0.4%	464.2K	130.2M	-679.0K	0.36	85.97	N/A	N/A	20,893	7,566	336,078	247,827
2015-09-14	$10.03	$11.00	59.6%	17.0%	70.2%	56.7%	58.3%	8.4%	-3.7%	532.5K	135.5M	-629.0K	0.41	82.41	N/A	N/A	20,281	8,273	335,637	245,437
2015-09-15	$10.33	$10.00	58.7%	16.8%	71.1%	55.1%	58.2%	-1.2%	-6.9%	479.4K	136.8M	-598.2K	0.30	85.11	N/A	N/A	2,046	617	334,933	244,015
2015-09-16	$10.21	$10.00	54.6%	15.7%	70.9%	48.4%	55.1%	6.3%	5.3%	580.9K	144.1M	-547.8K	0.90	82.60	N/A	N/A	12,563	11,307	338,227	246,378
2015-09-17	$10.45	$10.00	54.1%	15.6%	71.9%	47.5%	56.3%	-1.2%	-5.1%	535.8K	132.7M	-597.8K	1.02	90.84	N/A	N/A	12,677	12,973	334,477	241,850
2015-09-18	$10.47	$10.00	52.8%	15.2%	71.1%	45.4%	52.9%	0.2%	0.2%	725.3K	119.4M	-686.9K	0.77	83.50	N/A	N/A	13,351	10,337	335,237	241,155
2015-09-21	$9.95	$10.00	54.3%	15.8%	72.7%	47.8%	51.4%	9.2%	1.5%	665.5K	87.9M	-608.2K	0.46	92.38	N/A	N/A	11,928	5,497	284,067	196,750
2015-09-22	$9.69	$10.00	56.4%	17.3%	54.4%	51.3%	58.3%	1.0%	-3.0%	666.2K	92.7M	-574.3K	0.52	89.10	N/A	N/A	11,347	5,877	284,583	196,895
2015-09-23	$9.54	$10.00	51.3%	15.7%	53.5%	42.8%	55.1%	0.3%	8.9%	586.5K	95.3M	-540.5K	0.60	86.65	N/A	N/A	11,746	7,040	285,329	198,088
2015-09-24	$9.85	$10.00	54.3%	16.4%	49.6%	47.9%	52.8%	4.5%	1.6%	620.3K	100.2M	-522.0K	0.41	90.32	N/A	N/A	14,312	5,903	285,390	198,610
2015-09-25	$9.06	$10.00	59.8%	16.9%	56.2%	57.1%	56.3%	5.5%	-8.6%	493.4K	97.1M	-521.2K	1.13	99.88	N/A	N/A	15,777	17,753	288,540	198,850
2015-09-28	$8.62	$10.00	63.6%	19.3%	56.3%	63.5%	68.8%	0.6%	4.2%	408.0K	106.4M	-459.3K	0.59	92.03	N/A	N/A	16,939	10,027	289,300	206,043
2015-09-29	$8.43	$10.00	67.8%	18.6%	54.4%	70.5%	65.8%	8.1%	3.9%	434.6K	104.6M	-449.3K	0.95	92.98	N/A	N/A	10,049	9,588	293,223	207,374
2015-09-30	$8.40	$10.00	60.8%	18.7%	54.3%	58.7%	55.3%	5.6%	-0.5%	437.4K	103.0M	-457.3K	1.26	93.63	N/A	N/A	6,971	8,778	294,271	207,457