Fiserv Inc. options tape
Read from CBOE's delayed chain on 23 September 2026, with Fiserv Inc. at $46.18: open interest within 90 days was 38,525 call and 46,207 put contracts, a put/call ratio of 1.2; the day's volume was 5,076 calls and 8,732 puts (1.72). The most call open interest sits at the $55.00 strike (8,714 contracts) and the most put open interest at $40.00 (11,925). The at-the-money straddle for 25 September 2026, 2 days out, was priced at 3.2% of spot. For 16 October 2026, implied volatility was 39.4% at the put 5% below spot and 40.1% at the call 5% above, -0.7 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $55.00 | 8,714 |
| Puts | $40.00 | 11,925 |
The strike with the most open interest on each side, across expiries within 90 days.
Strikes where the day's volume was at least twice the open interest
| Contract | Volume | Open interest before | Premium traded |
|---|---|---|---|
| 20 November 2026 put at $60.00 | 200 | 5 | $276,000 |
| 30 October 2026 call at $48.00 | 515 | 142 | $119,738 |
Volume of at least 200 contracts and at least twice the open interest, with at least $25,000 of premium at the mid; contracts expiring the same day are left out. Premium is mid price times volume times 100.
Open interest built since 22 September 2026
| Contract | Open interest now | Change |
|---|---|---|
| 25 September 2026 call at $48.00 | 789 | +502 |
| 16 October 2026 call at $50.00 | 1,127 | +281 |
Contracts whose open interest rose by 250 or more against the previous day's snapshot.
Source
CBOE delayed quotes for FISV, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
The same record on your computer
GreekSoup is also a free program for your own computer. It reads these same filings for the names you follow, refreshed as they land, with no account. One pasted line installs it.