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Contract OI history

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May 21, 2027 EXPIRATION

QS $4.00 Put

QS270521P00004000

Latest saved OI408Oct 23, 2026
Last change+11vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
QS $4.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4082040 2026-10-09: 93 OI2026-10-13: 109 OI2026-10-14: 109 OI2026-10-15: 196 OI2026-10-16: 197 OI2026-10-21: 397 OI2026-10-23: 408 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

QS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing408+11
Oct 21, 2026397+200
Oct 16, 2026197+1
Oct 15, 2026196+87
Oct 14, 20261090
Oct 13, 2026109+16
Oct 09, 202693No prior observation