September 19, 2026

Two September Expiries at Opposite Poles: A Polymarket Analysis of a Pinned Oil Book and a 0.7% ETH Barrier

Eleven days left in the month, and Polymarket's September-dated board has separated into two clean groups: the questions that are effectively answered, and the questions that need a violent move to become answerable. Both groups still trade real size, which is the part most people find confusing.

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Below is a snapshot-based look at three books as of September 19, 2026 β€” one commodity touch market pinned at the ceiling, one crypto barrier pressed against the floor, and one long-dated political book that refuses to leave the 1% neighbourhood. This is research framing, not a trade recommendation.

The pinned book: WTI's $95 touch market at 100%

The WTI $95 September market shows "Yes" at 100.0% and "No" at 0.1%, after a +16.0% move over 24 hours and +17.
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