CALX Options History — April 2026

In April 2026, CALX traded between $46.26 and $52.25. ATM implied volatility averaged 60.0%, placing in the 64.6% IV rank vs the trailing year. The 30-day expected move averaged 17.2%. IV traded above realized volatility by 21.8% (HV 20d: 38.2%). Max pain ranged from $47.50 to $47.50. Net GEX was positive for 4 of 14 trading days. Term structure was in contango for 1 of 14 days. Put/call ratio averaged 7.48.

Notable Days

  • 2026-04-01: Highest Volume — 4,502 contracts
  • 2026-04-02: Largest IV spike — 27.8% change
  • 2026-04-21: Highest IV Rank — 100.0%
  • 2026-04-21: Largest Expected Move — 22.0%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$49.11$46.26$52.25$47.52$50.02
Max Pain$47.50$47.50$47.50$47.50$47.50
ATM IV60.0%42.4%76.9%42.4%76.9%
Expected Move17.2%12.2%22.0%12.2%22.0%
HV 20d38.2%35.7%39.7%38.2%39.2%
HV 60d54.1%52.3%55.2%54.4%53.5%
IV Rank64.6%31.6%100.0%31.6%100.0%
IV Percentile90.3%59.1%100.0%59.1%100.0%
Term Structure-9.8%-20.1%15.1%15.1%-20.1%
VWIV61.4%47.3%75.9%47.3%75.9%
Skew 25d9.8%-16.4%39.6%-16.4%-0.5%
Skew 10d12.6%-3.8%29.4%-3.8%29.4%
Call IV 25d59.0%44.1%84.2%47.7%77.3%
Put IV 25d68.8%31.3%83.8%31.3%76.8%
Bid-Ask Spread %44.7926.4568.7226.4532.62
Gamma HHI0.390.160.570.160.48
Net GEX-105.2K-562.4K450.2K39.4K311.9K
Net DEX219.2K-9.5M4.0M-674.0K-7.0M
Net VEX-27.3K-41.6K-4.7K-4.7K-41.4K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio7.480.0096.072.000.07
Total Volume811.42914,5024,502986
Total OI6,432.51,2588,8941,2588,894

Daily Data (14 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2026-04-01$47.52$47.5042.4%12.2%38.2%31.6%47.3%-16.4%15.1%39.4K-674.0K-4.7K2.0026.451,5013,0011,073185
2026-04-02$46.26$47.5054.2%15.5%35.7%48.1%56.0%11.3%-8.5%-101.6K3.2M-27.9K0.6942.3432222,5733,181
2026-04-06$48.25$47.5051.2%14.7%37.4%43.9%60.0%5.4%-9.2%-73.0K2.1M-27.0K2.5044.138202,5803,197
2026-04-07$48.88$47.5049.2%14.1%36.1%41.1%61.5%7.2%-9.8%-57.1K1.1M-28.2K0.1749.881222,5883,197
2026-04-08$50.02$47.5060.1%17.2%36.9%56.4%56.2%23.5%-10.2%13.7K431.8K-28.4K0.4248.211252,6023,199
2026-04-09$49.38$47.5060.5%17.3%37.1%56.9%51.9%4.6%-9.1%-22.4K662.7K-26.9K0.0058.29902,5933,204
2026-04-10$47.71$47.5061.0%17.5%38.9%57.6%54.5%24.8%-12.1%-54.1K2.2M-25.6K96.0750.92151,4412,5983,204
2026-04-13$48.63$47.5066.7%19.1%39.2%65.6%61.6%8.5%-13.3%-547.3K4.0M-27.0K0.2734.512262,6124,618
2026-04-14$49.09$47.5060.9%17.5%39.2%65.3%71.3%11.7%-10.0%-562.4K2.8M-26.2K0.3063.01117352,6254,623
2026-04-15$49.06$47.5064.5%18.5%38.5%71.0%70.0%39.6%-12.0%-454.5K2.5M-28.0K2.2544.51492,6684,651
2026-04-16$49.64$47.5059.4%17.0%38.8%79.0%60.3%26.2%-6.9%-381.0K2.4M-25.5K0.0068.72102,6704,660
2026-04-17$50.79$47.5068.8%19.7%39.7%97.8%67.5%-14.6%-14.5%-34.2K-1.2M-24.0K0.0127.213,642522,6714,654
2026-04-20$52.25$47.5064.7%18.5%39.7%89.6%66.0%6.4%-17.1%450.2K-9.5M-41.6K0.0336.31396105,5663,169
2026-04-21$50.02$47.5076.9%22.0%39.2%100.0%75.9%-0.5%-20.1%311.9K-7.0M-41.4K0.0732.62922645,7013,193