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Contract OI history

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Dec 18, 2026 EXPIRATION

SYNA $115.00 Put

SYNA261218P00115000

Latest saved OI412Oct 23, 2026
Last change0vs 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. 4122060 2026-10-09: 370 OI2026-10-14: 368 OI2026-10-15: 411 OI2026-10-16: 411 OI2026-10-21: 412 OI2026-10-23: 412 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, 2026Viewing4120
Oct 21, 2026412+1
Oct 16, 20264110
Oct 15, 2026411+43
Oct 14, 2026368-2
Oct 09, 2026370No prior observation