ProShares - Large Cap Core Plus (CSM) Options History
Historical options analytics archive for CSM with monthly max pain, implied volatility, gamma exposure, and put/call data.
64 months of complete options data available.
CSM monthly aggregates
Month-by-month rollups derived from the daily snapshot archive for CSM. 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 | 18.2% | 1.3% | - | $0 | $0 | - |
| 2026-05 | 20 | 17.5% | 1.2% | - | $0 | $0 | - |
| 2026-04 | 21 | 78.0% | 18.8% | - | $0 | $0 | - |
| 2026-03 | 22 | 21.2% | 17.0% | - | $0 | $0 | - |
| 2026-02 | 19 | 16.7% | 7.9% | - | $0 | $0 | - |
| 2026-01 | 20 | 16.7% | 7.9% | - | $0 | $0 | - |
This archive aggregates CSM's daily end-of-day options snapshots into monthly summaries, spanning 2010-09 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 CSM 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 18.2%.
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
May | Jun | Jul | Aug | Sep | Oct | Nov | Dec
2012
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct
2011
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec
2010
Frequently asked CSM history questions
- How much options history is available for CSM?
- This archive holds 64 months of CSM options analytics, spanning 2010-09 through 2026-06. Each entry is a monthly rollup of CSM'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 CSM archive.
- What data does each monthly CSM aggregate contain?
- Every monthly row summarizes that month of CSM 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 18.2%, an average IV rank of 1.3%.
- How is the CSM options-history archive built and how often does it update?
- The archive is derived from CSM'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 CSM's volatility regime shifts around earnings and macro events, and compare current dealer positioning against historical norms.