CALX Options History — March 2026

In March 2026, CALX traded between $49.20 and $54.45. ATM implied volatility averaged 52.4%, placing in the 45.5% IV rank vs the trailing year. The 30-day expected move averaged 14.9%. IV traded above realized volatility by 11.0% (HV 20d: 41.3%). Max pain ranged from $47.50 to $55.00. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 11 of 21 days. Put/call ratio averaged 0.12.

Notable Days

2026-03-25: Highest Volume — 160 contracts
2026-03-16: Largest IV drop — 34.0% change
2026-03-10: Highest IV Rank — 60.6%
2026-03-13: Largest Expected Move — 20.4%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$51.36	$49.20	$54.45	$53.23	$49.20
Max Pain	$48.57	$47.50	$55.00	$55.00	$47.50
ATM IV	52.4%	32.9%	63.1%	50.3%	55.6%
Expected Move	14.9%	9.2%	20.4%	14.4%	15.9%
HV 20d	41.3%	35.4%	50.7%	50.7%	36.7%
HV 60d	53.0%	51.7%	54.0%	51.7%	54.0%
IV Rank	45.5%	18.2%	60.6%	42.6%	50.1%
IV Percentile	80.4%	25.8%	97.2%	79.0%	86.5%
Term Structure	1.1%	-9.8%	15.3%	0.8%	5.5%
VWIV	52.3%	43.4%	59.1%	50.4%	47.9%
Skew 25d	10.7%	-6.6%	49.0%	17.6%	3.5%
Skew 10d	11.4%	-11.5%	34.0%	26.8%	-5.3%
Call IV 25d	45.8%	30.5%	61.7%	47.6%	45.2%
Put IV 25d	56.5%	35.6%	90.7%	65.2%	48.7%
Bid-Ask Spread %	67.59	31.28	106.65	100.21	48.51
Gamma HHI	0.20	0.15	0.26	0.23	0.15
Net GEX	62.3K	50.9K	81.3K	60.5K	56.0K
Net DEX	-750.2K	-1.7M	-153.4K	-741.4K	-1.1M
Net VEX	-6.1K	-7.3K	-4.7K	-7.3K	-5.6K
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.12	0.00	0.67	0.24	0.00
Total Volume	33.238	0	160	67	5
Total OI	1,483.81	1,049	1,784	1,589	1,255

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 Vol	Put Vol	Call OI	Put OI
2026-03-02	$53.23	$55.00	50.3%	14.4%	50.7%	42.6%	50.4%	17.6%	0.8%	60.5K	-741.4K	-7.3K	0.24	100.21	54	13	950	639
2026-03-03	$52.53	$55.00	56.4%	16.2%	47.9%	51.1%	49.9%	7.6%	-7.3%	60.3K	-702.6K	-7.3K	0.00	105.52	17	0	960	651
2026-03-04	$54.45	$55.00	43.0%	12.3%	49.0%	32.4%	48.3%	18.2%	-3.1%	81.3K	-940.0K	-7.0K	0.00	101.98	0	2	952	651
2026-03-05	$52.15	$47.50	47.7%	13.8%	48.5%	39.0%	56.9%	6.3%	-1.2%	62.0K	-620.6K	-6.9K	0.24	94.57	21	5	952	652
2026-03-06	$50.41	$47.50	57.8%	14.5%	50.1%	53.2%	50.2%	8.3%	-1.4%	51.6K	-560.9K	-7.1K	0.00	105.22	0	12	962	656
2026-03-09	$50.85	$47.50	58.7%	16.0%	45.5%	54.3%	48.5%	7.2%	-9.8%	57.3K	-181.0K	-6.0K	0.10	106.65	59	6	962	654
2026-03-10	$51.05	$47.50	63.1%	15.4%	41.5%	60.6%	57.6%	12.2%	-4.6%	53.8K	-401.9K	-6.5K	0.00	106.01	0	1	989	654
2026-03-11	$51.00	$47.50	58.7%	16.8%	41.2%	54.4%	59.0%	3.8%	-8.7%	50.9K	-424.6K	-6.5K	0.00	104.15	8	0	989	655
2026-03-12	$49.98	$47.50	51.3%	0.0%	38.2%	44.0%	0.0%	10.2%	-0.6%	52.7K	-303.9K	-6.1K	0.00	59.17	0	0	997	655
2026-03-13	$50.30	$47.50	49.8%	20.4%	38.1%	42.0%	0.0%	6.2%	2.2%	60.4K	-341.4K	-5.8K	0.00	47.80	2	0	997	655
2026-03-16	$51.27	$47.50	32.9%	9.2%	37.7%	18.2%	0.0%	9.2%	15.3%	71.3K	-153.4K	-4.7K	0.00	55.17	5	0	995	655
2026-03-17	$51.30	$47.50	41.1%	12.1%	37.7%	29.7%	0.0%	0.6%	2.1%	66.9K	-280.1K	-5.2K	0.00	52.28	19	0	992	655
2026-03-18	$51.59	$47.50	49.9%	13.2%	37.7%	42.1%	56.9%	-6.6%	4.3%	74.3K	-289.0K	-5.2K	0.01	40.79	156	1	995	655
2026-03-20	$50.20	$47.50	58.9%	18.2%	35.4%	54.7%	0.0%	29.9%	-6.7%	65.7K	-333.3K	-5.8K	0.00	42.04	30	0	1,132	652
2026-03-23	$52.58	$47.50	57.4%	16.2%	39.3%	52.6%	59.1%	49.0%	-2.0%	59.0K	-1.4M	-5.8K	0.43	41.70	35	15	871	178
2026-03-24	$53.27	$47.50	52.3%	15.2%	38.7%	45.4%	43.4%	11.0%	6.9%	68.5K	-1.7M	-6.2K	0.00	51.02	1	0	901	185
2026-03-25	$52.87	$47.50	53.5%	12.8%	38.6%	47.1%	53.8%	11.5%	13.4%	72.0K	-1.7M	-5.8K	0.01	48.72	159	1	902	185
2026-03-26	$51.00	$47.50	52.2%	15.0%	38.1%	45.3%	55.1%	2.4%	3.5%	73.7K	-1.5M	-6.1K	0.32	38.03	22	7	1,038	186
2026-03-27	$49.98	$47.50	58.4%	16.7%	38.8%	54.0%	50.7%	6.9%	4.0%	58.1K	-1.2M	-6.1K	0.67	38.63	12	8	1,058	185
2026-03-30	$49.25	$47.50	50.6%	14.5%	39.0%	43.1%	48.5%	10.2%	10.8%	53.1K	-994.4K	-5.6K	0.00	31.28	22	0	1,068	185
2026-03-31	$49.20	$47.50	55.6%	15.9%	36.7%	50.1%	47.9%	3.5%	5.5%	56.0K	-1.1M	-5.6K	0.00	48.51	5	0	1,070	185