Repligen Corporation (RGEN) Options History
Historical options analytics archive for RGEN with monthly max pain, implied volatility, gamma exposure, and put/call data.
206 months of complete options data available.
RGEN monthly aggregates
Month-by-month rollups derived from the daily snapshot archive for RGEN. 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).
| Month | Days | Avg ATM IV | Avg IV Rank | End Max Pain | End Net GEX | End Net DEX | Avg P/C |
|---|---|---|---|---|---|---|---|
| 2026-06 | 21 | 51.9% | 4.1% | $130.00 | -$209.0K | -$8.4M | 1.71 |
| 2026-05 | 20 | 75.9% | 24.6% | $105.00 | $154.0K | -$7.3M | 2.88 |
| 2026-04 | 21 | 62.6% | 53.5% | $110.00 | -$56.5K | $16.6M | 2.41 |
| 2026-03 | 22 | 54.9% | 27.5% | $120.00 | -$345.3K | $17.7M | 9.59 |
| 2026-02 | 19 | 56.5% | 29.4% | $135.00 | $309.9K | $5.7M | 1.15 |
| 2026-01 | 20 | 52.1% | 23.9% | $160.00 | -$384.0K | $1.3M | 0.98 |
This archive aggregates RGEN's daily end-of-day options snapshots into monthly summaries, spanning 2008-02 through 2026-06. Each month rolls up the underlying snapshot archive, which provides continuous end-of-day coverage from 2007 to present: implied-volatility levels, IV rank, and the put/call ratio are time-averaged across the month; total call and put volume are summed; and dealer positioning (net gamma and delta exposure) and the max-pain strike are taken at the month's final trading day. The result is a long-horizon view of how RGEN option pricing, volatility regime, and dealer hedging pressure evolved month over month, useful for backtesting strategy assumptions and for studying volatility-regime shifts around earnings and macro events. The most recent aggregated month (2026-06) shows an average ATM implied volatility near 51.9%, a month-end max-pain strike around $130.00, an average put/call ratio of 1.71.
2026
Jan | Feb | Mar | Apr | May | Jun
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
2009
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2008
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Frequently asked RGEN history questions
- How much options history is available for RGEN?
- This archive holds 206 months of RGEN options analytics, spanning 2008-02 through 2026-06. Each entry is a monthly rollup of RGEN's daily end-of-day options snapshot record, which provides continuous coverage from 2007 to present. Use the year-grouped links on this page to jump to any specific month within the RGEN archive.
- What data does each monthly RGEN aggregate contain?
- Every monthly row summarizes that month of RGEN option activity: time-averaged ATM implied volatility and IV rank, the month-end max-pain strike, end-of-month net dealer gamma (GEX) and delta (DEX) exposure, the average put/call ratio, and total call and put volume. For example, 2026-06 recorded an average ATM implied volatility near 51.9%, an average IV rank of 4.1%, a month-end max-pain strike around $130.00, an average put/call ratio of 1.71.
- How is the RGEN options-history archive built and how often does it update?
- The archive is derived from RGEN's daily end-of-day options snapshots, which capture spot, the full listed chain, implied volatility, and dealer-positioning exposures each trading day. Those daily records are rolled up into the monthly summaries shown here and refreshed as new end-of-day data lands. Traders use the long-horizon view to backtest strategy assumptions, study how RGEN's volatility regime shifts around earnings and macro events, and compare current dealer positioning against historical norms.