Arista Networks, Inc. options tape
Read from CBOE's delayed chain on 23 September 2026, with Arista Networks, Inc. at $205.50: open interest within 90 days was 76,890 call and 59,391 put contracts, a put/call ratio of 0.77; the day's volume was 9,450 calls and 4,694 puts (0.5). The most call open interest sits at the $220.00 strike (11,809 contracts) and the most put open interest at $175.00 (4,186). The at-the-money straddle for 25 September 2026, 2 days out, was priced at 3.8% of spot. For 16 October 2026, implied volatility was 48.1% at the put 5% below spot and 47.3% at the call 5% above, +0.7 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $220.00 | 11,809 |
| Puts | $175.00 | 4,186 |
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 |
|---|---|---|---|
| 16 October 2026 put at $177.50 | 215 | 0 | $33,863 |
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 $215.00 | 3,827 | +2,867 |
| 16 October 2026 call at $235.00 | 1,016 | +1,016 |
| 16 October 2026 put at $190.00 | 2,519 | +704 |
| 25 September 2026 call at $220.00 | 1,064 | +622 |
| 16 October 2026 call at $250.00 | 1,180 | +453 |
| 16 October 2026 call at $210.00 | 2,845 | +373 |
| 25 September 2026 put at $182.50 | 1,538 | +372 |
| 25 September 2026 put at $177.50 | 458 | +322 |
Contracts whose open interest rose by 250 or more against the previous day's snapshot.
Source
CBOE delayed quotes for ANET, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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