CALX Options History — December 2018

In December 2018, CALX traded between $8.42 and $9.77. ATM implied volatility averaged 42.2%, placing in the 32.1% IV rank vs the trailing year. The 30-day expected move averaged 12.2%. IV traded above realized volatility by 6.8% (HV 20d: 35.4%). Max pain ranged from $7.00 to $10.00. Net GEX was positive for 20 of 20 trading days. Term structure was in contango for 17 of 20 days. Put/call ratio averaged 7.90.

Notable Days

2018-12-28: Highest Volume — 4,324 contracts
2018-12-12: Largest IV spike — 46.3% change
2018-12-28: Highest IV Rank — 49.5%
2018-12-28: Largest Expected Move — 15.8%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$9.21	$8.42	$9.77	$9.72	$9.70
Max Pain	$7.45	$7.00	$10.00	$10.00	$7.00
ATM IV	42.2%	27.1%	55.2%	36.3%	52.7%
Expected Move	12.2%	8.7%	15.8%	10.4%	15.1%
HV 20d	35.4%	24.6%	83.2%	82.8%	43.0%
HV 60d	53.4%	52.3%	55.8%	54.0%	55.8%
IV Rank	32.1%	12.0%	49.5%	24.3%	46.2%
IV Percentile	44.0%	8.7%	73.0%	30.6%	67.1%
Term Structure	17.4%	-1.5%	135.2%	4.3%	3.5%
VWIV	41.4%	33.1%	54.9%	36.2%	53.8%
Skew 25d	5.3%	-9.0%	14.8%	-5.4%	14.8%
Skew 10d	15.1%	-0.9%	33.5%	3.2%	24.0%
Call IV 25d	37.8%	27.5%	46.2%	32.5%	42.1%
Put IV 25d	43.2%	27.1%	59.3%	27.1%	56.9%
Bid-Ask Spread %	87.78	78.23	96.74	89.51	90.10
Gamma HHI	0.36	0.28	0.65	0.37	0.65
Net GEX	16.3K	4.2K	39.5K	23.5K	39.5K
Net DEX	-1.9M	-4.2M	-834.7K	-2.7M	-4.2M
Net VEX	-9.9K	-22.1K	-7.1K	-8.5K	-22.1K
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	7.90	0.00	54.00	0.00	0.31
Total Volume	480.65	7	4,324	26	301
Total OI	7,140.45	6,144	11,502	6,304	11,502

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
2018-12-03	$9.72	$10.00	36.3%	10.4%	82.8%	24.3%	36.2%	-5.4%	4.3%	23.5K	-2.7M	-8.5K	0.00	89.51	26	0	4,928	1,376
2018-12-04	$9.62	$10.00	42.0%	12.0%	83.2%	31.9%	42.0%	-9.0%	-1.5%	22.1K	-2.6M	-8.3K	0.37	92.04	19	7	4,941	1,376
2018-12-05	$9.62	$10.00	41.8%	12.0%	32.7%	31.6%	41.8%	-8.6%	-0.7%	21.8K	-2.6M	-8.3K	0.37	96.74	19	7	4,941	1,376
2018-12-06	$9.77	$7.00	41.7%	11.2%	30.9%	31.5%	40.0%	4.7%	8.9%	22.8K	-2.7M	-8.3K	0.96	78.23	45	43	4,941	1,371
2018-12-07	$9.59	$7.00	41.9%	13.2%	31.0%	31.8%	43.3%	6.5%	15.6%	14.4K	-2.6M	-8.3K	0.65	93.15	69	45	4,981	1,339
2018-12-10	$9.34	$7.00	45.4%	12.0%	27.9%	36.4%	33.1%	9.2%	4.4%	22.3K	-2.2M	-7.6K	6.00	85.20	1	6	4,838	1,349
2018-12-11	$9.30	$7.00	27.1%	11.2%	27.9%	12.0%	38.6%	6.7%	7.2%	19.4K	-2.1M	-7.3K	54.00	83.28	1	54	4,838	1,343
2018-12-12	$9.39	$7.00	39.6%	11.4%	27.2%	28.7%	40.0%	6.0%	8.4%	19.7K	-2.2M	-7.3K	39.00	81.68	1	39	4,838	1,343
2018-12-13	$9.31	$7.00	30.4%	8.7%	26.7%	16.5%	38.1%	6.4%	23.3%	26.4K	-2.0M	-7.5K	25.00	84.91	3	75	4,838	1,319
2018-12-14	$9.27	$7.00	39.3%	11.3%	24.6%	28.2%	39.8%	7.4%	4.0%	19.3K	-2.1M	-7.1K	15.13	82.47	104	1,573	4,836	1,308
2018-12-17	$8.89	$7.00	40.1%	11.5%	27.5%	29.3%	36.0%	1.2%	8.3%	6.1K	-1.0M	-10.9K	0.32	87.59	72	23	4,936	2,860
2018-12-18	$9.07	$7.00	40.2%	11.5%	29.3%	29.5%	39.1%	1.8%	8.5%	4.2K	-1.2M	-11.2K	0.18	83.23	121	22	4,910	2,850
2018-12-19	$8.89	$7.00	40.1%	11.5%	27.6%	29.4%	38.3%	13.9%	7.6%	6.0K	-1.1M	-10.9K	0.36	92.90	87	31	4,970	2,799
2018-12-20	$8.88	$7.00	42.0%	12.0%	27.2%	31.9%	34.7%	2.3%	3.9%	6.2K	-1.1M	-10.9K	0.51	82.63	87	44	4,970	2,781
2018-12-21	$8.68	$7.00	41.6%	11.9%	27.8%	31.3%	39.6%	9.0%	6.6%	10.4K	-853.9K	-10.5K	0.20	87.33	271	53	4,970	2,780
2018-12-24	$8.42	$7.00	52.6%	15.1%	29.1%	46.0%	48.3%	14.2%	135.2%	12.8K	-834.7K	-10.4K	11.01	91.54	142	1,564	4,761	2,680
2018-12-26	$8.66	$7.00	47.1%	13.5%	31.7%	38.6%	43.5%	2.3%	94.2%	11.7K	-880.0K	-10.3K	0.60	91.99	60	36	4,789	2,720
2018-12-27	$8.65	$7.00	46.4%	13.3%	29.1%	37.7%	46.6%	9.9%	-1.4%	11.0K	-904.6K	-10.3K	2.97	91.88	60	178	4,821	2,734
2018-12-28	$9.36	$7.00	55.2%	15.8%	40.9%	49.5%	54.9%	13.1%	6.6%	5.7K	-1.8M	-11.5K	0.05	89.19	4,119	205	4,821	2,735
2018-12-31	$9.70	$7.00	52.7%	15.1%	43.0%	46.2%	53.8%	14.8%	3.5%	39.5K	-4.2M	-22.1K	0.31	90.10	229	72	8,679	2,823