CNS Open Interest
Cohen & Steers Inc (CNS) had 551 open option contracts as of Nov 4, 2026: 155 calls and 396 puts. Open interest rose 60.2% over the past four weeks. The put/call open interest ratio is 2.55, so puts outnumber calls.
Open Interest by Strike
Showing results for CNS, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for CNS, 2026-11-20(m), calls & puts
| Call Open Interest Total | |
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| Put Open Interest Total | |
| Open Interest Total | |
| Put-Call Open Interest Ratio |
Highest Open Interest Options
Showing results for CNS, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for CNS, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for CNS, all expirations, calls & puts. View full history
CNS 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 CNS have?
Cohen & Steers had 551 open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 459 contracts.
Is CNS open interest rising or falling?
Open interest rose 60.2% over the past four weeks. It was 344 contracts on Oct 7, 2026. See the CNS open interest history for a longer view.
What is the CNS put/call open interest ratio?
The Cohen & Steers put/call open interest ratio was 2.55 as of Nov 4, 2026. Four weeks earlier it was 4.83.
What is Cohen & Steers Inc?
Cohen & Steers is a niche asset manager concentrating on real estate securities.