Amphenol Corp. options tape
Read from CBOE's delayed chain on 23 September 2026, with Amphenol Corp. at $82.85: open interest within 90 days was 72,797 call and 111,161 put contracts, a put/call ratio of 1.53; the day's volume was 5,275 calls and 38,183 puts (7.24). The most call open interest sits at the $80.00 strike (11,231 contracts) and the most put open interest at $67.50 (42,374). The at-the-money straddle for 16 October 2026, 23 days out, was priced at 7.9% of spot. For 16 October 2026, implied volatility was 41.1% at the put 5% below spot and 40.4% at the call 5% above, +0.7 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $80.00 | 11,231 |
| Puts | $67.50 | 42,374 |
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 $65.00 | 36,432 | 1,193 | $2.4 million |
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 |
|---|---|---|
| 20 November 2026 call at $80.00 | 7,228 | +2,105 |
| 16 October 2026 call at $90.00 | 5,629 | +1,221 |
| 20 November 2026 call at $95.00 | 2,858 | +990 |
| 16 October 2026 call at $82.50 | 3,060 | +681 |
| 20 November 2026 put at $65.00 | 1,193 | +629 |
| 16 October 2026 call at $80.00 | 2,939 | +483 |
| 18 December 2026 call at $82.50 | 995 | +432 |
| 16 October 2026 put at $75.00 | 2,824 | +427 |
Contracts whose open interest rose by 250 or more against the previous day's snapshot.
Source
CBOE delayed quotes for APH, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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