CALX Options History — January 2026

In January 2026, CALX traded between $44.37 and $59.34. ATM implied volatility averaged 47.8%, placing in the 39.0% IV rank vs the trailing year. The 30-day expected move averaged 13.8%. IV traded above realized volatility by 11.0% (HV 20d: 36.8%). Max pain ranged from $40.00 to $55.00. Net GEX was positive for 17 of 20 trading days. Term structure was in contango for 6 of 20 days. Put/call ratio averaged 3.34.

Notable Days

2026-01-29: Highest Volume — 2,228 contracts
2026-01-07: Largest IV spike — 185.1% change
2026-01-28: Highest IV Rank — 60.8%
2026-01-28: Largest Expected Move — 18.1%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$53.90	$44.37	$59.34	$53.55	$44.37
Max Pain	$49.75	$40.00	$55.00	$50.00	$52.50
ATM IV	47.8%	19.9%	63.2%	38.2%	40.0%
Expected Move	13.8%	10.3%	18.1%	11.0%	11.5%
HV 20d	36.8%	25.3%	68.5%	25.3%	68.5%
HV 60d	40.3%	37.1%	47.4%	37.2%	47.4%
IV Rank	39.0%	0.0%	60.8%	24.4%	28.1%
IV Percentile	71.0%	0.0%	96.4%	49.6%	56.3%
Term Structure	-2.6%	-13.5%	19.5%	19.5%	6.1%
VWIV	47.7%	27.3%	72.0%	27.3%	38.4%
Skew 25d	5.8%	-10.1%	18.8%	-6.9%	12.1%
Skew 10d	-0.6%	-13.0%	9.8%	-5.2%	9.8%
Call IV 25d	44.8%	32.7%	64.3%	42.8%	32.7%
Put IV 25d	50.5%	35.4%	73.5%	35.9%	44.8%
Bid-Ask Spread %	97.74	81.35	113.21	109.31	100.42
Gamma HHI	0.20	0.15	0.45	0.17	0.21
Net GEX	62.8K	-286.0K	228.2K	109.8K	-23.8K
Net DEX	-1.0M	-4.6M	7.9M	-1.9M	2.3M
Net VEX	-7.7K	-13.1K	-4.9K	-6.1K	-6.5K
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	3.34	0.00	19.33	19.33	3.88
Total Volume	388.45	6	2,228	61	1,639
Total OI	1,608.9	978	3,757	1,359	2,158

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
2026-01-02	$53.55	$50.00	38.2%	11.0%	25.3%	24.4%	27.3%	-6.9%	19.5%	109.8K	-1.9M	-6.1K	19.33	109.31	3	58	1,160	199
2026-01-05	$54.32	$40.00	38.8%	13.2%	25.3%	25.2%	45.1%	5.9%	-2.0%	106.7K	-1.9M	-6.1K	0.13	96.73	23	3	1,164	258
2026-01-06	$54.47	$40.00	19.9%	11.4%	25.3%	0.0%	0.0%	13.7%	4.1%	70.0K	-1.8M	-4.9K	0.00	104.19	6	0	1,176	261
2026-01-07	$53.02	$40.00	56.7%	12.3%	26.0%	51.6%	40.9%	-6.7%	3.0%	104.7K	-1.7M	-5.9K	0.00	101.49	283	1	1,180	261
2026-01-08	$51.50	$40.00	58.6%	13.9%	27.1%	54.3%	36.3%	-10.1%	-0.7%	87.5K	-1.1M	-6.3K	0.30	109.71	20	6	1,219	292
2026-01-09	$51.74	$50.00	50.2%	13.3%	26.8%	42.5%	0.0%	9.4%	-1.9%	81.0K	-978.5K	-6.1K	0.07	105.08	14	1	1,219	288
2026-01-12	$53.08	$50.00	51.2%	13.0%	28.8%	43.9%	46.3%	18.8%	-5.9%	98.0K	-1.2M	-5.5K	0.04	93.92	120	5	1,229	287
2026-01-13	$54.03	$52.50	35.8%	13.7%	26.2%	22.3%	0.0%	-0.7%	-7.4%	100.9K	-1.8M	-6.6K	2.28	110.57	25	57	1,284	290
2026-01-14	$54.65	$52.50	47.7%	13.7%	26.3%	38.9%	0.0%	3.3%	-9.2%	78.9K	-1.9M	-6.3K	1.33	113.21	3	4	1,290	292
2026-01-15	$59.34	$52.50	51.6%	14.8%	39.2%	44.5%	47.6%	14.6%	-8.4%	228.2K	-4.6M	-6.6K	0.34	97.80	462	158	1,288	294
2026-01-16	$58.10	$52.50	45.2%	13.0%	39.0%	35.5%	47.6%	6.2%	4.2%	181.2K	-3.7M	-8.1K	0.22	93.57	91	20	1,402	312
2026-01-20	$57.01	$52.50	58.2%	16.7%	39.6%	53.7%	55.3%	10.0%	-9.3%	72.2K	-2.1M	-8.0K	10.13	96.81	15	152	806	172
2026-01-21	$56.57	$52.50	51.9%	14.9%	39.2%	44.9%	51.1%	7.5%	-13.5%	57.7K	-1.3M	-9.0K	0.25	92.45	20	5	813	324
2026-01-22	$56.10	$52.50	49.7%	14.3%	39.0%	41.9%	47.8%	7.0%	-3.6%	54.5K	-1.5M	-8.9K	0.05	99.24	21	1	823	329
2026-01-23	$54.45	$52.50	51.2%	14.7%	40.4%	43.9%	51.7%	6.8%	-7.4%	55.8K	-898.9K	-8.5K	0.90	84.25	145	131	840	330
2026-01-26	$56.08	$52.50	53.8%	15.4%	41.4%	47.5%	58.7%	18.5%	-5.7%	48.0K	-1.2M	-9.7K	0.81	85.25	27	22	944	458
2026-01-27	$56.02	$52.50	58.4%	16.7%	41.3%	54.0%	63.2%	2.6%	-4.3%	51.4K	-1.3M	-10.0K	11.39	81.35	71	809	987	473
2026-01-28	$53.33	$55.00	63.2%	18.1%	44.7%	60.8%	72.0%	9.3%	-12.5%	-20.5K	467.5K	-13.1K	3.34	90.07	258	862	1,050	1,269
2026-01-29	$46.27	$52.50	35.9%	10.3%	67.4%	22.5%	33.3%	-5.7%	2.8%	-286.0K	7.9M	-12.4K	12.03	89.28	171	2,057	1,243	2,514
2026-01-30	$44.37	$52.50	40.0%	11.5%	68.5%	28.1%	38.4%	12.1%	6.1%	-23.8K	2.3M	-6.5K	3.88	100.42	336	1,303	1,289	869