COR Options History — September 2025

In September 2025, COR traded between $288.48 and $311.50. ATM implied volatility averaged 24.6%, placing in the 32.4% IV rank vs the trailing year. The 30-day expected move averaged 7.0%. IV traded below realized volatility by 1.7% (HV 20d: 26.2%). Max pain ranged from $280.00 to $300.00. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 15 of 21 days. Put/call ratio averaged 1.28.

Notable Days

  • 2025-09-10: Highest Volume — 4,193 contracts
  • 2025-09-25: Largest IV spike — 8.8% change
  • 2025-09-25: Highest IV Rank — 40.4%
  • 2025-09-25: Largest Expected Move — 7.7%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$297.69$288.48$311.50$295.42$311.50
Max Pain$292.38$280.00$300.00$280.00$300.00
ATM IV24.6%23.3%27.0%23.8%24.8%
Expected Move7.0%6.6%7.7%6.8%7.1%
HV 20d26.2%19.2%30.2%30.2%29.1%
HV 60d22.7%21.1%25.5%21.7%25.2%
IV Rank32.4%28.0%40.4%29.7%33.3%
IV Percentile67.5%56.0%77.8%64.7%67.9%
Term Structure0.6%-1.5%1.9%-1.5%1.9%
VWIV24.3%21.9%27.1%23.7%25.5%
Skew 25d3.2%2.1%4.4%2.9%3.4%
Skew 10d8.0%2.0%12.7%7.3%12.7%
Call IV 25d22.8%21.2%24.5%22.4%23.2%
Put IV 25d26.0%24.9%28.6%25.3%26.7%
Bid-Ask Spread %83.6678.1093.0691.1185.45
Gamma HHI0.210.160.250.210.24
Net GEX9.3M4.7M14.1M7.2M12.2M
Net DEX-375.6M-466.1M-292.1M-363.4M-451.1M
Net VEX-1.1M-1.2M-1.0M-1.1M-1.1M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.280.055.450.170.24
Total Volume662.6671354,193200589
Total OI41,982.66736,41346,67041,88238,236

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-09-02$295.42$280.0023.8%6.8%30.2%29.7%23.7%2.9%-1.5%7.2M-363.4M-1.1M0.1791.11N/AN/A1712922,05719,825
2025-09-03$294.80$280.0024.9%7.1%30.1%33.6%26.0%4.4%-1.2%6.9M-350.1M-1.1M0.4393.06N/AN/A1476322,11219,837
2025-09-04$292.50$290.0025.2%6.8%29.0%34.5%23.4%2.1%1.0%6.2M-339.2M-1.1M1.2878.51N/AN/A10913922,13319,862
2025-09-05$291.54$290.0023.4%6.6%26.8%28.5%23.0%2.9%0.3%6.0M-331.6M-1.1M1.9486.01N/AN/A509722,13119,881
2025-09-08$296.75$290.0023.4%6.6%25.3%28.7%21.9%3.0%1.2%8.3M-369.1M-1.0M0.7579.92N/AN/A775822,15319,958
2025-09-09$298.51$290.0024.1%6.6%24.6%30.8%22.8%2.9%0.7%8.9M-384.6M-1.0M1.8778.10N/AN/A8415722,17219,941
2025-09-10$296.35$300.0023.5%6.7%24.6%28.8%23.5%3.4%1.1%8.3M-368.8M-1.0M0.0578.29N/AN/A4,00918422,22320,042
2025-09-11$302.72$300.0023.3%6.7%25.6%28.3%24.5%4.1%1.3%14.1M-451.3M-1.2M5.1382.67N/AN/A3071,57526,04820,195
2025-09-12$302.94$300.0023.3%6.7%24.1%28.0%25.0%2.2%1.3%14.0M-466.1M-1.1M0.5382.51N/AN/A1256626,08320,466
2025-09-15$293.00$300.0024.9%7.1%26.7%33.4%24.0%3.2%0.1%8.7M-366.4M-1.2M0.1082.60N/AN/A1922026,05920,501
2025-09-16$290.06$290.0025.9%7.4%26.7%37.0%24.9%3.5%-0.7%5.6M-326.3M-1.2M0.4082.20N/AN/A1365426,07920,511
2025-09-17$288.48$290.0024.0%6.9%26.5%30.5%24.2%2.4%1.1%4.7M-315.7M-1.1M0.9181.61N/AN/A1059626,12120,488
2025-09-18$290.34$290.0023.9%6.8%23.5%30.1%23.8%2.7%1.2%4.9M-339.0M-1.1M5.4581.65N/AN/A13674126,17820,492
2025-09-19$291.37$290.0024.7%7.1%23.5%32.9%24.2%2.2%1.5%11.1M-357.8M-1.1M0.1484.07N/AN/A88312726,18519,905
2025-09-22$289.48$290.0024.5%7.0%19.2%32.1%22.0%3.7%-0.5%9.2M-292.1M-1.1M0.0688.92N/AN/A5413120,71815,695
2025-09-23$302.34$290.0025.5%7.3%24.0%35.6%23.4%2.5%1.4%11.6M-385.0M-1.1M0.4282.33N/AN/A35514821,11615,697
2025-09-24$308.98$290.0024.8%7.1%25.0%33.1%23.5%4.3%-0.1%12.0M-430.1M-1.1M0.1682.38N/AN/A3846221,20215,765
2025-09-25$298.82$290.0027.0%7.7%28.1%40.4%27.0%4.1%-0.4%11.3M-359.6M-1.2M2.8686.63N/AN/A21762021,64015,785
2025-09-26$306.58$300.0025.7%7.4%29.4%36.3%27.1%4.2%0.9%11.4M-408.1M-1.2M3.3983.58N/AN/A18964021,70016,254
2025-09-29$309.00$300.0025.4%7.3%29.4%35.0%26.6%3.6%1.4%11.9M-432.5M-1.1M0.5985.23N/AN/A1287521,80516,385
2025-09-30$311.50$300.0024.8%7.1%29.1%33.3%25.5%3.4%1.9%12.2M-451.1M-1.1M0.2485.45N/AN/A47511421,79816,438