PHLX Oil Service Sector Index (OSX) Options History

Historical options analytics archive for OSX with monthly max pain, implied volatility, gamma exposure, and put/call data.

231 months of complete options data available.

OSX monthly aggregates over the last 6 months: ATM IV, max pain, net GEX, and put/call ratioAverage ATM IVAverage ATM IV40%42%44%46%48%50%25-1226-0126-0226-0326-0426-05MonthIVMonth-End Net GEXMonth-End Net GEX$0$200$400$600$800$1.0K$1.2K$1.4K25-1226-0126-0226-0326-0426-05MonthGEXAverage P/C RatioAverage P/C Ratio-1.00-0.500.000.501.0025-1226-0126-0126-0226-0226-0326-03MonthP/C
Month-by-month aggregates from the OSX daily snapshot archive. IV and P/C are averages across days in the month; max pain and net GEX are end-of-month values.

OSX monthly aggregates

Month-by-month rollups derived from the daily snapshot archive for OSX. Volatility and put/call columns are averages across trading days within the month; max pain, net GEX, and net DEX are the end-of-month values (last trading day of the month).

MonthDaysAvg ATM IVAvg IV RankEnd Max PainEnd Net GEXEnd Net DEXAvg P/C
2026-051942.3%8.3%-$0$0-
2026-042038.8%6.5%-$0$0-
2026-032251.3%15.3%$105.00$1.4K-$9.6K0.00
2026-021938.0%8.1%-$0$0-
2026-012041.5%10.4%-$0$0-
2025-122244.2%12.3%-$0$00.00

2026

Jan | Feb | Mar | Apr | May

2025

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2024

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2023

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2022

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2021

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2020

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2019

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2018

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2017

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2016

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2015

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2014

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2013

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2012

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2011

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2010

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2009

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2008

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2007

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