Contract OI history
Back to SOFIJan 21, 2028 EXPIRATION
SOFI $13.00 Put
SOFI280121P00013000
Latest saved OI4,004Oct 23, 2026
Last change-10vs 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 | 4,004 | -10 |
| Oct 21, 2026 | 4,014 | +193 |
| Oct 16, 2026 | 3,821 | -29 |
| Oct 15, 2026 | 3,850 | -11 |
| Oct 14, 2026 | 3,861 | 0 |
| Oct 13, 2026 | 3,861 | +132 |
| Oct 09, 2026 | 3,729 | No prior observation |