Annexon, Inc. (ANNX) Options History
Historical options analytics archive for ANNX with monthly max pain, implied volatility, gamma exposure, and put/call data.
57 months of complete options data available.
ANNX monthly aggregates
Month-by-month rollups derived from the daily snapshot archive for ANNX. 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 | 145.3% | 40.3% | $4.00 | $51.2K | -$5.4M | 28.83 |
| 2026-05 | 20 | 123.0% | 34.0% | $4.00 | $32.3K | -$4.4M | 1.70 |
| 2026-04 | 21 | 135.9% | 34.5% | $6.00 | $43.8K | -$5.1M | 0.86 |
| 2026-03 | 22 | 106.1% | 21.5% | $4.00 | $32.6K | -$5.2M | 1.35 |
| 2026-02 | 19 | 117.5% | 26.8% | $3.00 | $40.2K | -$5.3M | 0.35 |
| 2026-01 | 20 | 105.4% | 25.2% | $6.00 | $39.0K | -$6.0M | 0.16 |
This archive aggregates ANNX's daily end-of-day options snapshots into monthly summaries, spanning 2021-10 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 ANNX 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 145.3%, a month-end max-pain strike around $4.00, an average put/call ratio of 28.83.
2026
Jan | Feb | Mar | Apr | May | Jun
2025
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec
2024
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec
2023
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec
2022
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec
2021
Frequently asked ANNX history questions
- How much options history is available for ANNX?
- This archive holds 57 months of ANNX options analytics, spanning 2021-10 through 2026-06. Each entry is a monthly rollup of ANNX'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 ANNX archive.
- What data does each monthly ANNX aggregate contain?
- Every monthly row summarizes that month of ANNX 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 145.3%, an average IV rank of 40.3%, a month-end max-pain strike around $4.00, an average put/call ratio of 28.83.
- How is the ANNX options-history archive built and how often does it update?
- The archive is derived from ANNX'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 ANNX's volatility regime shifts around earnings and macro events, and compare current dealer positioning against historical norms.