Banco de Chile (BCH) Options History
Historical options analytics archive for BCH with monthly max pain, implied volatility, gamma exposure, and put/call data.
45 months of complete options data available.
BCH monthly aggregates
Month-by-month rollups derived from the daily snapshot archive for BCH. Volatility and put/call columns are averages across trading days within the month; max pain is the month's final-session value. The month-end exposures are the assumed dealer book at 100% of open interest (GEX in dollars of delta per 1% move) and the put-minus-call delta balance (DEX, dollars of the underlying), each of the month's final session: a final session without a stored exposure is a gap naming its date, never an earlier day's value. Assumes dealers are long the calls and short the puts, a share p of open interest each - here 100% of open interest (the GEX page sets the share). A date without a stored exposure is a gap; a value marked * is partial, averaged over fewer days, or may include contracts expiring that day or of an unreadable expiration: its reason is printed beside it.
| Month | Days | Avg ATM IV | Avg IV Rank | End Max Pain | End GEX (assumed) | End DEX (put-minus-call balance) | Avg P/C |
|---|---|---|---|---|---|---|---|
| 2026-09 | 21 | 34.4% | 30.2% | $40.00 | $63.8K | -$417.9K | 0.18 |
| 2026-08 | 21 | 45.6% | 11.5% | $40.00 | $14.5K | -$286.9K | 0.00 |
| 2026-07 | 22 | 43.5% | 12.5% | $35.00 | $11.1K | -$281.3K | 0.01 |
| 2026-06 | 21 | 48.8% | 32.9% | $35.00 | $11.3K | -$215.4K | 0.03 |
| 2026-05 | 20 | 53.8% | 57.9% | $35.00 | $12.0K | -$162.7K | 0.25 |
| 2026-04 | 21 | 50.6% | 46.1% | $35.00 | $10.5K | -$132.0K | 0.02 |
This archive aggregates BCH's daily end-of-day options snapshots into monthly summaries, spanning 2023-01 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 the assumed dealer book's GEX, the put-minus-call delta balance and the max-pain strike are taken at the month's final trading day. The result is a long-horizon view of how BCH option pricing, volatility regime, and the assumed book's gamma 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 34.4%, a month-end max-pain strike around $40.00, an average put/call ratio of 0.18.
2026
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep
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
Frequently asked BCH history questions
- How much options history is available for BCH?
- This archive holds 45 months of BCH options analytics, spanning 2023-01 through 2026-09. Each entry is a monthly rollup of BCH'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 BCH archive.
- What data does each monthly BCH aggregate contain?
- Every monthly row summarizes that month of BCH option activity: time-averaged ATM implied volatility and IV rank, the month-end max-pain strike, the month-end GEX of the assumed dealer book and the put-minus-call delta balance (DEX), the average put/call ratio, and total call and put volume. For example, 2026-09 recorded an average ATM implied volatility near 34.4%, an average IV rank of 30.2%, a month-end max-pain strike around $40.00, an average put/call ratio of 0.18.
- How is the BCH options-history archive built and how often does it update?
- The archive is derived from BCH's daily end-of-day options snapshots, which capture spot, the full listed chain, implied volatility, and the open interest the exposures are built from 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 BCH's volatility regime shifts around earnings and macro events, and compare the assumed book's current GEX against its history.