Palo Alto Networks Inc. options tape
Read from CBOE's delayed chain on 23 September 2026, with Palo Alto Networks Inc. at $375.00: open interest within 90 days was 124,498 call and 107,741 put contracts, a put/call ratio of 0.87; the day's volume was 23,594 calls and 14,513 puts (0.62). The most call open interest sits at the $400.00 strike (7,770 contracts) and the most put open interest at $300.00 (8,568). The at-the-money straddle for 25 September 2026, 2 days out, was priced at 4.0% of spot. For 16 October 2026, implied volatility was 51.4% at the put 5% below spot and 50.6% at the call 5% above, +0.8 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $400.00 | 7,770 |
| Puts | $300.00 | 8,568 |
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 |
|---|---|---|---|
| 18 December 2026 call at $380.00 | 3,331 | 378 | $13.0 million |
| 18 December 2026 call at $440.00 | 3,485 | 310 | $6.8 million |
| 18 December 2026 put at $310.00 | 3,355 | 611 | $4.3 million |
| 25 September 2026 call at $370.00 | 2,394 | 308 | $2.3 million |
| 2 October 2026 call at $400.00 | 1,215 | 600 | $574,088 |
| 25 September 2026 put at $340.00 | 1,437 | 416 | $47,421 |
| 2 October 2026 call at $440.00 | 308 | 112 | $26,334 |
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 $372.50 | 754 | +700 |
| 25 September 2026 call at $400.00 | 1,756 | +563 |
| 25 September 2026 call at $392.50 | 433 | +377 |
| 25 September 2026 call at $380.00 | 802 | +376 |
| 16 October 2026 put at $360.00 | 1,217 | +344 |
| 25 September 2026 call at $390.00 | 484 | +258 |
Contracts whose open interest rose by 250 or more against the previous day's snapshot.
Source
CBOE delayed quotes for PANW, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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