ACT Open Interest
Enact Holdings Inc (ACT) had 684 open option contracts as of Nov 4, 2026: 580 calls and 104 puts. Open interest rose 198.7% over the past four weeks. The put/call open interest ratio is 0.18, so calls outnumber puts.
Open Interest by Strike
Showing results for ACT, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for ACT, 2026-11-20(m), calls & puts
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| Put Open Interest Total | |
| Open Interest Total | |
| Put-Call Open Interest Ratio |
Highest Open Interest Options
Showing results for ACT, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for ACT, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for ACT, all expirations, calls & puts. View full history
ACT 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 ACT have?
Enact had 684 open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 373 contracts.
Is ACT open interest rising or falling?
Open interest rose 198.7% over the past four weeks. It was 229 contracts on Oct 7, 2026. See the ACT open interest history for a longer view.
What is the ACT put/call open interest ratio?
The Enact put/call open interest ratio was 0.18 as of Nov 4, 2026. Four weeks earlier it was 0.44.
What is Enact Holdings Inc?
Enact Holdings Inc is a private mortgage insurance company serving the United States housing finance market.