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Market InsightsTuesday, September 8, 20263 min readPolymarketFlow Research

Market Intelligence — Tuesday, September 8, 2026

Today's market overview

Active prediction markets traded $116.4M in the last 24 hours. Here is what moved, where the largest positions sit, and what resolves next.

What moved

Biggest gain

Israel closes its airspace by...? climbed +16.4 points to 96% on $838.0K of 24-hour volume. The market asks: Israel closes its airspace by September 30?

Where the biggest money sits

Positions below are valued at the current price. Amounts are share counts; each winning share redeems for $1, so "at risk" is shares times price. Parked capital priced at 95¢ or higher and identical-size positions spread across every outcome of one event are excluded, because those are market-making rather than directional bets.

  • RN1 holds 216.4K shares of YES on "Barranquilla: Julieta Pareja vs Lucrezia Stefanini" at 50¢ — about $108.2K at risk, paying $216.4K if it resolves that way.
  • 0xad89f899f1524533adfD1e6A07DA692Fcd92fF1 holds 58.3K shares of NO on "Barranquilla: Julieta Pareja vs Lucrezia Stefanini" at 50¢ — about $29.2K at risk, paying $58.3K if it resolves that way.
  • shaoqi767 holds 2.9M shares of YES on "Will the Fed decrease interest rates by 25 bps after the September 2026 meeting?" at 1¢ — about $16.2K at risk, paying $2.9M if it resolves that way.
  • suntori holds 1.1M shares of YES on "Will the Fed decrease interest rates by 25 bps after the September 2026 meeting?" at 1¢ — about $6.0K at risk, paying $1.1M if it resolves that way.
  • Full rankings on the biggest bets page, with wallet history in the whale tracker and new positions in the free alerts feed.

    Resolving in the next seven days

  • Sep 13 — Will Carlos Alcaraz win the 2026 Men's US Open? (currently 56%, $2.3M traded)
  • Sep 14 — Barranquilla: Julieta Pareja vs Lucrezia Stefanini (currently 50%, $2.0M traded)
  • Sep 15 — Genoa: Thiago Seyboth Wild vs Francesco Ferrari (currently 54%, $1.4M traded)
  • Sep 15 — US announces end of Iranian blockade by September 14, 2026? (currently 5%, $1.2M traded)
  • Sep 13 — Will Alexander Zverev win the 2026 Men's US Open? (currently 28%, $997.4K traded)
  • The full 31-day view is on the resolution calendar.

    Where to look next

    Live trackers for the questions that draw the most attention: Fed decision odds for cut, hold or hike at each remaining FOMC meeting, and 2026 midterm odds for control of Congress. Perpetual futures data, including funding rates, is on the Perps screener.

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    *Generated from PolymarketFlow's ingested Polymarket data. Prices are market prices shown for information only, not advice. Trading availability depends on your jurisdiction.*