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Contract OI history

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Nov 20, 2026 EXPIRATION

SYNA $115.00 Put

SYNA261120P00115000

Latest saved OI292Oct 23, 2026
Last change-21vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SYNA $115.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3131560 2026-10-09: 291 OI2026-10-14: 280 OI2026-10-15: 281 OI2026-10-16: 306 OI2026-10-21: 313 OI2026-10-23: 292 OI Oct 09, 2026Oct 23, 2026

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

SYNA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing292-21
Oct 21, 2026313+7
Oct 16, 2026306+25
Oct 15, 2026281+1
Oct 14, 2026280-11
Oct 09, 2026291No prior observation