MUB Options History — October 2025

In October 2025, MUB traded between $106.37 and $107.59. ATM implied volatility averaged 4.5%, placing in the 5.7% IV rank vs the trailing year. The 30-day expected move averaged 1.4%. IV traded above realized volatility by 2.5% (HV 20d: 2.0%). Max pain ranged from $106.00 to $106.00. Net GEX was positive for 23 of 23 trading days. Term structure was in contango for 20 of 23 days. Put/call ratio averaged 4.06.

Notable Days

  • 2025-10-03: Highest Volume — 4,116 contracts
  • 2025-10-23: Largest IV spike — 77.7% change
  • 2025-10-23: Highest IV Rank — 17.3%
  • 2025-10-23: Largest Expected Move — 2.4%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$107.09$106.37$107.59$106.39$107.47
Max Pain$106.00$106.00$106.00$106.00$106.00
ATM IV4.5%2.5%8.3%4.7%5.0%
Expected Move1.4%1.2%2.4%1.3%1.4%
HV 20d2.0%1.5%3.9%3.9%1.6%
HV 60d3.1%3.0%3.3%3.3%3.0%
IV Rank5.7%0.0%17.3%5.2%7.3%
IV Percentile16.6%0.0%91.3%17.5%28.2%
Term Structure0.5%-2.9%5.2%0.3%0.3%
VWIV5.7%2.5%13.4%3.9%3.8%
Skew 25d0.9%-0.7%2.3%0.2%0.8%
Skew 10d1.7%-0.7%4.7%0.3%4.7%
Call IV 25d4.1%3.0%5.6%3.7%4.1%
Put IV 25d4.9%3.6%5.7%3.9%5.0%
Bid-Ask Spread %23.419.6790.4211.559.67
Gamma HHI0.210.200.230.200.22
Net GEX24.5M12.4M34.9M16.1M26.8M
Net DEX-127.5M-178.9M-75.5M-80.6M-129.3M
Net VEX-1.3M-1.4M-1.1M-1.4M-1.1M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio4.060.0055.381.140.29
Total Volume251.21734,1164731
Total OI85,977.08779,48791,76287,46380,219

Daily Data (23 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2025-10-01$106.39$106.004.7%1.3%3.9%5.2%3.9%0.2%0.3%16.1M-80.6M-1.4M1.1411.55222551,76735,696
2025-10-02$106.37$106.004.4%1.3%3.9%4.4%4.1%0.6%0.3%15.7M-84.0M-1.4M2.7319.818222451,76635,699
2025-10-03$106.41$106.004.2%1.2%3.3%3.8%0.0%0.3%0.4%13.6M-81.2M-1.4M55.3820.97734,04351,75135,832
2025-10-06$106.48$106.004.3%1.4%2.5%4.1%4.6%0.6%0.6%12.4M-75.5M-1.4M0.0019.9517051,73039,868
2025-10-07$106.55$106.003.9%1.3%2.4%3.0%4.8%0.9%0.5%14.9M-88.9M-1.4M1.0722.34151651,74439,868
2025-10-08$106.57$106.003.2%1.4%2.0%0.8%4.8%2.1%0.6%17.3M-95.1M-1.4M3.5027.452751,74639,884
2025-10-09$106.59$106.002.5%1.4%1.5%0.0%4.8%2.3%0.6%17.6M-103.0M-1.3M0.5024.296351,74739,888
2025-10-10$106.88$106.003.7%1.5%1.7%3.6%5.4%1.2%0.7%23.2M-124.4M-1.4M0.3220.1219651,74739,889
2025-10-13$106.98$106.004.7%1.5%1.6%6.6%7.1%0.7%1.0%23.1M-125.4M-1.3M2.6217.92266851,75539,895
2025-10-14$106.94$106.004.1%1.4%1.6%4.8%5.0%0.8%0.6%24.5M-134.5M-1.3M0.0022.743051,76339,953
2025-10-15$107.07$106.004.8%1.4%1.6%6.9%0.0%0.6%0.6%26.4M-145.0M-1.3M0.9217.57242251,76439,953
2025-10-16$107.40$106.004.9%1.4%1.8%7.2%4.9%1.1%0.4%32.4M-178.9M-1.3M0.9425.13181751,76739,970
2025-10-17$107.40$106.005.0%1.4%1.8%7.3%0.0%1.5%0.4%32.2M-178.2M-1.3M2.2519.325111551,77539,987
2025-10-20$107.50$106.004.7%1.3%1.8%6.5%4.7%0.7%0.5%30.1M-144.6M-1.2M3.0715.45288647,86231,625
2025-10-21$107.56$106.004.6%1.3%1.8%6.2%4.4%0.7%0.5%34.9M-146.8M-1.3M0.1714.296147,87031,680
2025-10-22$107.59$106.004.7%1.3%1.7%6.4%4.9%-0.7%0.4%32.7M-155.5M-1.2M8.9571.381917047,87431,681
2025-10-23$107.53$106.008.3%2.4%1.7%17.3%10.2%-0.3%-2.9%32.2M-154.5M-1.2M0.0915.7953547,87831,851
2025-10-24$107.57$106.004.3%1.2%1.6%5.5%13.4%1.4%0.6%28.4M-146.9M-1.1M4.159.91135447,91931,859
2025-10-27$107.59$106.004.2%1.2%1.6%5.1%10.7%1.2%5.2%30.0M-151.2M-1.1M0.5914.73412447,92031,913
2025-10-28$107.55$106.004.3%1.2%1.6%5.3%2.5%1.3%0.4%27.7M-142.2M-1.1M1.2016.768610347,95131,937
2025-10-29$107.38$106.004.8%1.4%1.7%6.7%4.6%0.9%-0.1%26.0M-134.5M-1.1M3.0090.42175148,08732,000
2025-10-30$107.41$106.005.0%1.4%1.6%7.5%5.4%0.9%-0.4%25.6M-132.7M-1.1M0.4610.81592748,10432,039
2025-10-31$107.47$106.005.0%1.4%1.6%7.3%3.8%0.8%0.3%26.8M-129.3M-1.1M0.299.6724748,15332,066