Contract OI history
Back to RIOTDec 18, 2026 EXPIRATION
RIOT $38.00 Call
RIOT261218C00038000
Latest saved OI247Oct 23, 2026
Last change+57vs previous saved observation
Saved market days7Oct 09, 2026 onwards
All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.
| Market date | Open interest | Change vs prior saved day |
|---|---|---|
| Oct 23, 2026Viewing | 247 | +57 |
| Oct 21, 2026 | 190 | -2 |
| Oct 16, 2026 | 192 | -40 |
| Oct 15, 2026 | 232 | 0 |
| Oct 14, 2026 | 232 | 0 |
| Oct 13, 2026 | 232 | 0 |
| Oct 09, 2026 | 232 | No prior observation |