BSY Options History — May 2025

In May 2025, BSY traded between $43.07 and $48.29. ATM implied volatility averaged 29.4%, placing in the 25.4% IV rank vs the trailing year. The 30-day expected move averaged 7.5%. IV traded above realized volatility by 0.2% (HV 20d: 29.2%). Max pain ranged from $45.00 to $45.00. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 12 of 21 days. Put/call ratio averaged 0.20.

Notable Days

  • 2025-05-19: Highest Volume — 20,569 contracts
  • 2025-05-16: Largest IV spike — 46.3% change
  • 2025-05-05: Highest IV Rank — 51.1%
  • 2025-05-01: Largest Expected Move — 11.6%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$46.91$43.07$48.29$43.07$47.95
Max Pain$45.00$45.00$45.00$45.00$45.00
ATM IV29.4%15.8%47.6%40.3%24.1%
Expected Move7.5%4.5%11.6%11.6%6.9%
HV 20d29.2%24.5%41.8%41.8%24.7%
HV 60d34.6%33.3%35.7%33.3%33.6%
IV Rank25.4%2.1%51.1%39.9%19.2%
IV Percentile34.0%0.4%93.7%82.5%5.6%
Term Structure1.4%-9.3%12.9%-9.3%1.7%
VWIV26.5%16.8%40.2%40.2%28.3%
Skew 25d1.5%-7.7%10.2%10.2%2.8%
Skew 10d4.1%-7.0%26.0%22.5%7.0%
Call IV 25d25.1%14.5%35.8%35.6%24.5%
Put IV 25d26.6%14.9%45.8%45.8%27.2%
Bid-Ask Spread %92.4779.93108.7286.7396.24
Gamma HHI0.370.250.450.390.36
Net GEX938.7K179.2K1.7M179.2K1.7M
Net DEX-19.5M-33.0M-3.8M-3.8M-32.3M
Net VEX-138.4K-311.3K-29.9K-29.9K-303.3K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.200.001.000.000.64
Total Volume2,333.571220,569553857
Total OI16,826.9054,46435,5854,46435,585

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-05-01$43.07$45.0040.3%11.6%41.8%39.9%40.2%10.2%-9.3%179.2K-3.8M-29.9K0.0086.73N/AN/A55214,030434
2025-05-02$43.49$45.0036.4%10.4%40.6%33.9%34.4%7.8%-3.4%272.0K-4.2M-30.2K0.0096.54N/AN/A204,544435
2025-05-05$43.97$45.0047.6%7.6%38.8%51.1%25.2%9.5%11.6%373.2K-4.8M-31.6K1.0097.94N/AN/A114,556435
2025-05-06$43.87$45.0047.1%9.1%38.8%50.4%26.9%-0.9%-3.4%312.6K-4.3M-30.1K0.2598.18N/AN/A824,557436
2025-05-07$46.14$45.0034.3%7.7%40.5%30.6%28.5%2.0%1.4%428.7K-6.4M-34.0K0.0093.00N/AN/A2,77664,563437
2025-05-08$47.36$45.0030.8%8.7%27.3%25.2%26.6%7.1%-0.0%812.5K-16.9M-54.8K0.0193.77N/AN/A65357,128431
2025-05-09$46.52$45.0025.0%8.0%27.4%16.3%25.6%4.2%1.3%760.2K-16.2M-60.7K0.7584.30N/AN/A437,755435
2025-05-12$47.58$45.0026.2%6.0%27.5%18.1%21.6%-7.6%-0.2%738.0K-18.3M-58.9K0.01105.43N/AN/A24127,758438
2025-05-13$48.27$45.0034.8%4.6%26.7%31.5%26.6%1.2%11.5%945.0K-19.7M-61.4K0.00105.72N/AN/A407,957437
2025-05-14$47.85$45.0021.6%6.2%26.7%11.1%21.9%-5.8%1.4%801.5K-19.4M-60.2K0.8295.77N/AN/A28237,959437
2025-05-15$48.29$45.0015.8%4.5%26.7%2.1%16.8%1.5%12.9%969.1K-20.9M-61.7K0.00108.72N/AN/A3,30407,970437
2025-05-16$48.07$45.0023.1%6.6%26.9%13.3%23.9%2.6%4.2%648.3K-21.0M-85.4K0.0088.18N/AN/A19011,278437
2025-05-19$48.08$45.0028.3%8.1%25.2%27.8%27.5%-4.5%-1.3%649.0K-17.8M-86.4K0.0383.09N/AN/A19,9166538,850234
2025-05-20$47.94$45.0024.1%6.9%24.8%19.3%25.4%0.9%0.1%1.4M-28.2M-221.3K0.5880.36N/AN/A5,0152,92826,084864
2025-05-21$47.49$45.0027.0%7.7%25.3%25.0%25.8%1.4%-0.0%1.4M-26.2M-262.4K0.0282.97N/AN/A3,9528728,4533,809
2025-05-22$47.69$45.0026.4%7.6%25.1%24.0%25.9%0.7%0.0%1.3M-27.3M-262.3K0.0187.15N/AN/A4,0845626,4083,769
2025-05-23$47.47$45.0028.7%8.2%24.5%28.5%28.1%2.2%-0.5%1.4M-27.2M-266.8K0.0891.08N/AN/A4523729,3723,821
2025-05-27$48.25$45.0024.3%7.0%24.6%19.8%25.7%-7.7%1.9%1.5M-33.0M-305.1K0.0093.09N/AN/A795229,2073,835
2025-05-28$47.79$45.0026.1%7.5%25.1%23.4%26.8%1.8%-0.3%1.5M-29.2M-288.4K0.0379.93N/AN/A4311129,7633,837
2025-05-29$48.03$45.0025.8%7.4%24.6%22.6%25.9%1.8%0.6%1.6M-32.9M-311.3K0.0293.60N/AN/A2,0613330,3603,830
2025-05-30$47.95$45.0024.1%6.9%24.7%19.2%28.3%2.8%1.7%1.7M-32.3M-303.3K0.6496.24N/AN/A52433331,7623,823