CDP Open Interest
COPT Defense Properties (CDP) had 198 open option contracts as of Nov 4, 2026: 123 calls and 75 puts. Open interest rose 5.9% over the past four weeks. The put/call open interest ratio is 0.61, so calls outnumber puts.
Open Interest by Strike
Showing results for CDP, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for CDP, 2026-11-20(m), 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 CDP, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for CDP, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for CDP, all expirations, calls & puts. View full history
CDP 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 CDP have?
COPT Defense Properties had 198 open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 191 contracts.
Is CDP open interest rising or falling?
Open interest rose 5.9% over the past four weeks. It was 187 contracts on Oct 7, 2026. See the CDP open interest history for a longer view.
What is the CDP put/call open interest ratio?
The COPT Defense Properties put/call open interest ratio was 0.61 as of Nov 4, 2026. Four weeks earlier it was 1.15.
What is COPT Defense Properties?
COPT Defense Properties is a fully-integrated and self-managed real estate investment trust (REIT) focused on owning, operating and developing properties in locations proximate to, or sometimes containing, key U.S.