KOP Open Interest
Koppers Holdings Inc (KOP) had 783 open option contracts as of Nov 4, 2026: 657 calls and 126 puts. Open interest fell 29.8% over the past four weeks. The put/call open interest ratio is 0.19, so calls outnumber puts.
Open Interest by Strike
Showing results for KOP, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for KOP, 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 KOP, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for KOP, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for KOP, all expirations, calls & puts. View full history
KOP 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 KOP have?
Koppers had 783 open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 954 contracts.
Is KOP open interest rising or falling?
Open interest fell 29.8% over the past four weeks. It was 1.12K contracts on Oct 7, 2026. See the KOP open interest history for a longer view.
What is the KOP put/call open interest ratio?
The Koppers put/call open interest ratio was 0.19 as of Nov 4, 2026. Four weeks earlier it was 0.14.
What is Koppers Holdings Inc?
Koppers Holdings Inc through its subsidiaries, manufactures and sells wood products, wood treatment chemicals, and carbon compounds used in markets such as railroad, aluminum and steel, agriculture, utilities, and residential lumber.