Thermo Fisher Scientific Inc. options tape
Read from CBOE's delayed chain on 23 September 2026, with Thermo Fisher Scientific Inc. at $658.76: open interest within 90 days was 12,274 call and 14,684 put contracts, a put/call ratio of 1.2; the day's volume was 2,393 calls and 1,076 puts (0.45). The most call open interest sits at the $700.00 strike (1,491 contracts) and the most put open interest at $540.00 (3,111). The at-the-money straddle for 25 September 2026, 2 days out, was priced at 2.6% of spot. For 16 October 2026, implied volatility was 29.6% at the put 5% below spot and 28.0% at the call 5% above, +1.6 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $700.00 | 1,491 |
| Puts | $540.00 | 3,111 |
The strike with the most open interest on each side, across expiries within 90 days.
Open interest built since 22 September 2026
| Contract | Open interest now | Change |
|---|---|---|
| 16 October 2026 call at $750.00 | 1,168 | +1,167 |
| 16 October 2026 call at $660.00 | 449 | +353 |
| 16 October 2026 call at $670.00 | 371 | +289 |
Contracts whose open interest rose by 250 or more against the previous day's snapshot.
Source
CBOE delayed quotes for TMO, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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