Dexcom Inc. options tape
Read from CBOE's delayed chain on 23 September 2026, with Dexcom Inc. at $88.99: open interest within 90 days was 14,820 call and 7,712 put contracts, a put/call ratio of 0.52; the day's volume was 38 calls and 21 puts (0.55). The most call open interest sits at the $100.00 strike (2,602 contracts) and the most put open interest at $85.00 (1,663). The at-the-money straddle for 25 September 2026, 2 days out, was priced at 4.1% of spot. For 16 October 2026, implied volatility was 34.9% at the put 5% below spot and 36.0% at the call 5% above, -1.1 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $100.00 | 2,602 |
| Puts | $85.00 | 1,663 |
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 $95.00 | 518 | +304 |
Contracts whose open interest rose by 250 or more against the previous day's snapshot.
Source
CBOE delayed quotes for DXCM, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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