SSO Open Interest
ProShares Ultra S&P500 (SSO) had 27.2K open option contracts as of Nov 6, 2026: 17.48K calls and 9.73K puts. Open interest rose 4.1% over the past four weeks, and is SSO's highest level in 12 weeks. The put/call open interest ratio is 0.56, so calls outnumber puts.
Open Interest by Strike
Showing results for SSO, 2026-11-13(w), calls & puts
Open Interest Stats
Showing results for SSO, 2026-11-13(w), calls & puts
| Call Open Interest Total | |
|---|---|
| Put Open Interest Total | |
| Open Interest Total | |
| Put-Call Open Interest Ratio |
Highest Open Interest Options
Showing results for SSO, 2026-11-13(w), calls & puts
Open Interest Total by Expiry
Showing results for SSO, 2026-11-13(w), calls & puts. View all expiries
Open Interest History
Showing daily totals for SSO, all expirations, calls & puts. View full history
SSO Open Interest FAQ
What is open interest?
Open interest is the number of option contracts that are open and not yet closed, exercised, or expired. The Options Clearing Corporation calculates it once a day from the previous day's trades, and it is published before the market opens.
How much open interest does SSO have?
SSO had 27.2K open option contracts as of Nov 6, 2026. Over the past 30 days, open interest averaged 25.14K contracts.
Is SSO open interest rising or falling?
Open interest rose 4.1% over the past four weeks, and is SSO's highest level in 12 weeks. It was 26.14K contracts on Oct 9, 2026. See the SSO open interest history for a longer view.
What is the SSO put/call open interest ratio?
The SSO put/call open interest ratio was 0.56 as of Nov 6, 2026. Four weeks earlier it was 0.55.