Generac Holdings Inc. (GNRC) Options History
Historical options analytics archive for GNRC with monthly max pain, implied volatility, gamma exposure, and put/call data.
184 months of complete options data available.
GNRC monthly aggregates
Month-by-month rollups derived from the daily snapshot archive for GNRC. 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 |
|---|---|---|---|---|---|---|---|
| 2026-09 | 21 | 49.4% | 34.3% | $200.00 | $1.7M | -$143.9M | 0.83 |
| 2026-08 | 21 | 51.0% | 44.5% | $210.00 | -$696.5K | $26.9M | 1.16 |
| 2026-07 | 22 | 74.1% | 91.6% | $210.00 | $1.9M | -$45.3M | 0.86 |
| 2026-06 | 21 | 55.8% | 73.5% | $250.00 | $4.9M | -$435.9M | 0.61 |
| 2026-05 | 20 | 48.2% | 54.5% | $260.00 | $4.7M | -$470.5M | 0.91 |
| 2026-04 | 21 | 61.2% | 80.1% | $185.00 | $5.4M | -$491.8M | 0.88 |
This archive aggregates GNRC's daily end-of-day options snapshots into monthly summaries, spanning 2011-06 through 2026-09. 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 GNRC 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 (2026-09) shows an average ATM implied volatility near 49.4%, a month-end max-pain strike around $200.00, an average put/call ratio of 0.83.
2026
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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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Frequently asked GNRC history questions
- How much options history is available for GNRC?
- This archive holds 184 months of GNRC options analytics, spanning 2011-06 through 2026-09. Each entry is a monthly rollup of GNRC'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 GNRC archive.
- What data does each monthly GNRC aggregate contain?
- Every monthly row summarizes that month of GNRC 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, 2026-09 recorded an average ATM implied volatility near 49.4%, an average IV rank of 34.3%, a month-end max-pain strike around $200.00, an average put/call ratio of 0.83.
- How is the GNRC options-history archive built and how often does it update?
- The archive is derived from GNRC'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 GNRC's volatility regime shifts around earnings and macro events, and compare current dealer positioning against historical norms.