CALX Options History — February 2026

In February 2026, CALX traded between $46.98 and $55.80. ATM implied volatility averaged 44.8%, placing in the 34.9% IV rank vs the trailing year. The 30-day expected move averaged 12.5%. IV traded below realized volatility by 29.9% (HV 20d: 74.7%). Max pain ranged from $50.00 to $65.00. Net GEX was positive for 12 of 19 trading days. Term structure was in contango for 7 of 19 days. Put/call ratio averaged 0.60.

Notable Days

2026-02-03: Highest Volume — 419 contracts
2026-02-10: Largest IV drop — 25.4% change
2026-02-06: Highest IV Rank — 49.3%
2026-02-24: Largest Expected Move — 14.7%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$52.29	$46.98	$55.80	$46.98	$51.47
Max Pain	$58.95	$50.00	$65.00	$50.00	$55.00
ATM IV	44.8%	36.3%	55.1%	37.3%	42.9%
Expected Move	12.5%	10.7%	14.7%	10.7%	12.3%
HV 20d	74.7%	52.9%	80.4%	72.0%	52.9%
HV 60d	50.6%	48.4%	51.8%	49.1%	51.2%
IV Rank	34.9%	22.9%	49.3%	24.4%	32.3%
IV Percentile	67.0%	41.7%	88.5%	45.6%	61.1%
Term Structure	-1.0%	-8.4%	10.2%	-1.6%	0.2%
VWIV	43.3%	29.0%	52.0%	42.2%	42.3%
Skew 25d	5.8%	-3.7%	17.9%	7.0%	13.6%
Skew 10d	14.1%	-7.7%	30.7%	22.3%	12.3%
Call IV 25d	43.4%	28.9%	53.3%	41.7%	36.4%
Put IV 25d	49.2%	37.0%	60.7%	48.7%	49.9%
Bid-Ask Spread %	98.84	89.63	105.70	96.99	105.70
Gamma HHI	0.22	0.14	0.46	0.46	0.21
Net GEX	6.7K	-201.6K	109.9K	-201.6K	57.5K
Net DEX	-779.0K	-3.2M	2.8M	2.8M	-408.3K
Net VEX	-9.7K	-13.8K	-7.1K	-12.6K	-7.1K
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.60	0.00	3.38	0.01	0.33
Total Volume	95.316	2	419	234	8
Total OI	3,110.421	1,542	3,869	3,662	1,583

Daily Data (19 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
2026-02-02	$46.98	$50.00	37.3%	10.7%	72.0%	24.4%	42.2%	7.0%	-1.6%	-201.6K	2.8M	-12.6K	0.01	96.99	232	2	1,596	2,066
2026-02-03	$47.59	$50.00	42.4%	12.1%	72.0%	31.5%	41.8%	2.1%	2.4%	-156.2K	2.2M	-13.8K	0.01	101.07	414	5	1,803	2,066
2026-02-04	$50.32	$50.00	44.6%	12.8%	75.3%	34.7%	39.9%	6.4%	-2.7%	-112.4K	782.7K	-12.4K	0.00	98.43	65	0	1,527	2,061
2026-02-05	$50.20	$65.00	45.7%	12.5%	74.8%	36.2%	43.2%	2.2%	0.0%	-71.4K	86.5K	-12.2K	1.50	95.48	26	39	1,525	2,061
2026-02-06	$53.17	$65.00	55.1%	11.6%	77.0%	49.3%	39.8%	3.6%	7.6%	-15.4K	-968.0K	-11.7K	0.04	96.44	117	5	1,535	2,087
2026-02-09	$55.80	$65.00	48.6%	11.5%	78.8%	40.2%	39.1%	-3.7%	-5.8%	109.9K	-2.8M	-10.6K	0.07	89.63	206	14	1,543	2,088
2026-02-10	$54.78	$65.00	36.3%	11.7%	78.7%	22.9%	31.1%	2.1%	-0.7%	98.1K	-2.6M	-9.9K	0.06	104.17	35	2	1,501	2,096
2026-02-11	$52.19	$65.00	42.6%	12.2%	80.4%	31.8%	48.0%	1.9%	-8.1%	17.4K	-1.3M	-10.4K	3.38	99.19	8	27	1,522	2,097
2026-02-12	$51.45	$65.00	47.5%	13.6%	80.4%	38.7%	45.2%	0.8%	-1.7%	-45.3K	-224.0K	-11.2K	2.00	103.38	8	16	1,518	2,114
2026-02-13	$52.72	$65.00	45.2%	13.0%	74.6%	35.5%	52.0%	6.2%	-8.4%	37.8K	-1.1M	-8.7K	0.13	101.35	15	2	1,513	2,117
2026-02-17	$52.62	$65.00	48.5%	13.9%	74.4%	40.1%	51.9%	7.6%	-4.3%	-1.5K	-854.6K	-8.7K	0.11	96.85	62	7	1,515	2,119
2026-02-18	$52.71	$65.00	47.3%	13.5%	74.3%	38.4%	46.0%	3.8%	-1.9%	33.7K	-1.2M	-8.1K	0.00	97.01	251	1	1,532	2,127
2026-02-19	$54.90	$55.00	40.4%	11.6%	75.9%	28.8%	43.2%	17.7%	-3.2%	86.1K	-2.8M	-8.1K	1.50	96.81	2	3	1,656	2,128
2026-02-20	$55.67	$55.00	42.0%	12.0%	76.1%	31.0%	42.5%	17.2%	-3.5%	65.1K	-3.2M	-8.3K	0.32	98.23	141	45	1,656	2,131
2026-02-23	$54.27	$55.00	48.7%	14.0%	75.9%	40.4%	51.1%	8.1%	-2.3%	57.0K	-1.1M	-8.1K	0.13	102.59	32	4	924	625
2026-02-24	$53.60	$55.00	51.4%	14.7%	75.1%	44.1%	43.4%	17.9%	1.7%	55.1K	-1.1M	-8.2K	0.17	98.43	6	1	915	627
2026-02-25	$51.53	$55.00	40.4%	11.6%	76.3%	28.7%	50.6%	-3.4%	10.2%	57.9K	-603.6K	-7.2K	1.00	100.07	1	1	921	628
2026-02-26	$51.50	$55.00	44.6%	12.8%	74.4%	34.6%	29.0%	-1.2%	2.5%	55.8K	-539.4K	-7.3K	0.00	96.15	0	8	946	629
2026-02-27	$51.47	$55.00	42.9%	12.3%	52.9%	32.3%	42.3%	13.6%	0.2%	57.5K	-408.3K	-7.1K	0.33	105.70	6	2	946	637