CALX Options History — October 2025

In October 2025, CALX traded between $57.64 and $69.20. ATM implied volatility averaged 48.9%, placing in the 37.8% IV rank vs the trailing year. The 30-day expected move averaged 14.4%. IV traded above realized volatility by 24.5% (HV 20d: 24.4%). Max pain ranged from $45.00 to $50.00. Net GEX was positive for 23 of 23 trading days. Term structure was in contango for 4 of 23 days. Put/call ratio averaged 0.21.

Notable Days

  • 2025-10-29: Highest Volume — 1,059 contracts
  • 2025-10-13: Largest IV spike — 34.7% change
  • 2025-10-13: Highest IV Rank — 56.1%
  • 2025-10-29: Largest Expected Move — 17.3%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$60.79$57.64$69.20$61.47$69.20
Max Pain$46.30$45.00$50.00$45.00$50.00
ATM IV48.9%35.1%62.4%36.2%40.6%
Expected Move14.4%10.1%17.3%10.4%11.6%
HV 20d24.4%19.6%41.0%25.9%39.9%
HV 60d25.7%24.1%31.4%25.6%31.4%
IV Rank37.8%19.0%56.1%20.5%26.5%
IV Percentile71.0%34.5%92.9%37.7%54.4%
Term Structure-5.4%-14.1%14.2%7.5%0.0%
VWIV48.5%34.9%62.3%51.5%41.6%
Skew 25d4.5%-15.4%27.7%7.4%8.4%
Skew 10d7.4%-16.9%33.4%5.7%2.8%
Call IV 25d46.0%26.1%58.4%31.7%43.9%
Put IV 25d50.5%30.6%67.3%39.2%52.3%
Bid-Ask Spread %93.2369.41104.1378.31102.11
Gamma HHI0.230.130.540.190.54
Net GEX133.7K85.5K365.8K141.1K293.2K
Net DEX-6.1M-12.4M-4.2M-6.4M-12.4M
Net VEX-11.3K-13.7K-10.5K-11.8K-13.7K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.210.001.700.000.08
Total Volume112.17411,0599140
Total OI2,655.1741,3613,5303,2972,560

Daily Data (23 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2025-10-01$61.47$45.0036.2%10.4%25.9%20.5%51.5%7.4%7.5%141.1K-6.4M-11.8K0.0078.31902,0011,296
2025-10-02$61.00$45.0035.1%10.1%22.8%19.0%0.0%-6.8%10.1%126.2K-6.2M-11.3K0.0076.68102,0041,296
2025-10-03$59.78$45.0035.4%10.2%23.9%19.5%34.9%-3.9%14.2%112.7K-5.8M-10.9K0.0069.41702,0031,296
2025-10-06$60.18$50.0042.4%14.1%23.8%29.0%48.2%27.7%-8.9%119.4K-5.8M-11.0K0.7188.5628202,0041,296
2025-10-07$59.02$50.0039.8%13.8%24.6%25.5%36.4%-0.7%-6.8%114.3K-5.5M-10.9K0.1086.19205202,0061,297
2025-10-08$59.87$50.0037.5%13.7%23.8%22.3%47.5%14.9%-7.8%96.8K-5.8M-11.1K0.6183.5718111,9791,316
2025-10-09$59.36$50.0038.6%14.1%23.4%23.8%39.5%-1.4%-5.9%102.1K-5.6M-10.8K0.0479.1918671,9931,316
2025-10-10$57.64$45.0046.3%14.8%23.7%34.3%44.7%22.8%-7.5%117.7K-5.4M-11.5K0.3392.2064212,0791,307
2025-10-13$58.47$45.0062.4%15.5%24.5%56.1%49.7%-0.8%-9.3%127.4K-6.0M-11.0K1.7099.5210172,1431,302
2025-10-14$59.26$45.0057.4%16.0%25.2%49.4%0.0%-15.4%-13.4%135.9K-6.2M-10.8K0.0097.792102,1471,309
2025-10-15$59.81$45.0048.3%13.9%25.4%37.1%51.5%4.1%-6.8%120.8K-6.6M-10.7K0.0299.409222,1501,309
2025-10-16$60.36$45.0056.4%16.2%21.6%48.0%0.0%-5.2%-9.2%134.6K-6.9M-11.2K0.11103.331922,2211,309
2025-10-17$59.74$45.0057.2%16.4%21.7%49.1%53.1%1.9%-8.0%135.7K-6.5M-11.0K0.00101.725002,2111,311
2025-10-20$60.04$45.0053.4%15.3%21.8%44.0%39.7%3.0%-9.7%85.5K-4.3M-10.8K0.01101.5813911,143218
2025-10-21$59.40$45.0052.1%14.9%22.0%42.2%52.7%5.1%-3.7%104.8K-4.3M-11.3K0.00104.132201,274219
2025-10-22$59.30$45.0053.7%15.4%19.6%44.4%54.6%-2.9%-3.8%100.7K-4.2M-10.9K0.0098.168101,268219
2025-10-23$59.84$45.0056.7%16.2%19.9%48.4%54.4%19.0%-13.1%104.6K-4.4M-11.6K0.0095.94501,310219
2025-10-24$61.18$45.0057.3%16.4%21.5%49.2%57.8%-1.2%-6.6%106.7K-4.8M-11.5K0.0098.13101,313219
2025-10-27$61.36$45.0056.4%16.2%21.4%48.0%50.8%-1.3%-4.4%112.4K-5.1M-10.6K0.0498.602511,312219
2025-10-28$61.97$45.0056.2%16.1%21.6%47.8%55.6%10.0%-13.1%108.3K-5.1M-10.8K0.8693.20761,310219
2025-10-29$61.79$45.0060.4%17.3%21.6%53.5%62.3%9.6%-14.1%108.2K-5.3M-10.5K0.0395.351,033261,334222
2025-10-30$68.23$50.0044.0%12.6%41.0%31.1%44.0%9.0%-4.9%365.8K-12.0M-13.7K0.11101.25255282,344246
2025-10-31$69.20$50.0040.6%11.6%39.9%26.5%41.6%8.4%0.0%293.2K-12.4M-13.7K0.08102.11130102,300260