C Open Interest
Citigroup Inc (C) had 1.11M open option contracts as of Nov 4, 2026: 436.5K calls and 676.71K puts. Open interest was little changed over the past four weeks. The put/call open interest ratio is 1.55, so puts outnumber calls.
Open Interest by Strike
Showing results for C, 2026-11-06(w), calls & puts
Open Interest Stats
Showing results for C, 2026-11-06(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 C, 2026-11-06(w), calls & puts
C 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 C have?
Citigroup had 1.11M open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 1.12M contracts.
Is C open interest rising or falling?
Open interest was little changed over the past four weeks. It was 1.12M contracts on Oct 7, 2026. See the C open interest history for a longer view.
What is the C put/call open interest ratio?
The Citigroup put/call open interest ratio was 1.55 as of Nov 4, 2026. Four weeks earlier it was 1.37.
What is Citigroup Inc?
Citigroup is a global financial powerhouse that orchestrates the movement of over $6 trillion in daily transaction volume, serving as the essential connective tissue for the world's most complex multinational corporations.