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EventAlpha · Daily Intelligence Brief
Tuesday, 8 September 2026 · 8 Sept 2026, 04:16 UTC
Polymarket · 7,758 markets · Synced 8 Sept 2026, 06:00 UTC
Produced by EventAlpha's automated editorial system. AI summaries are built from stored Polymarket market data, not unsourced external knowledge. Review the methodology.
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EventAlpha Daily Brief — 2026-09-08 Israel closes its airspace by September 30? jumped 17.85pp 1. Israel closes its airspace by...? (97%, +15.3pp) https://www.theeventalpha.com/market/israel-closes-its-airspace-by-september-30-701690 2. Will Apple release a foldable iPhone by...? (27%, +15.0pp) https://www.theeventalpha.com/market/will-apple-release-a-foldable-iphone-by-september-15-117966 3. 2026 Women’s US Open Winner (Tennis) (20%, +12.5pp) https://www.theeventalpha.com/market/will-elena-rybakina-win-the-2026-women-s-us-open-088656 Full brief: https://www.theeventalpha.com/daily-brief/2026-09-08 Read-only. Not financial advice.
Continuity
Compared against the brief filed on 2026-09-07.
Markets appearing in today's brief but not in the previous edition.
What moved overnight
Primary discovery only: ≥5pp move, ≥$10K activity, ≥$1K liquidity. Named events and moves first — not category vibes.
1 active outcomes · source-grouped
97%
+15.3pp
September 30
This cleared the participation bar — worth checking before you open Polymarket.
September 30 moved +15.3pp over 24 hours. Sharpest stored-history interval: rose 35.0pp, from 61% to 96%, between 21:00 and 22:00 UTC. Recent activity was materially above current liquidity, supporting a real repricing rather than an isolated thin-market tick.
Ranked #1 of 40 candidates: +15.3pp move, $824K activity.
10 more hydrated outcomes are available from the event analysis.
3 additional outcomes were omitted by the bounded event limit.
6 active outcomes · source-grouped
27%
+15.0pp
September 15
This cleared the participation bar — worth checking before you open Polymarket.
September 15 moved +15.0pp over 24 hours. Sharpest stored-history interval: rose 18.5pp, from 27% to 46%, between 04:00 and 05:00 UTC. Other active outcomes in the same source event also moved during comparable stored coverage, making the event-level repricing worth reviewing.
Ranked #2 of 40 candidates: +15.0pp move, $13K activity, multi-outcome confirmation.
8 active outcomes · source-grouped
20%
+12.5pp
Elena Rybakina
This cleared the participation bar — worth checking before you open Polymarket.
Elena Rybakina moved +12.5pp over 24 hours. Sharpest stored-history interval: rose 7.6pp, from 9% to 17%, between 20:00 and 21:00 UTC. Other active outcomes in the same source event also moved during comparable stored coverage, making the event-level repricing worth reviewing.
Ranked #3 of 40 candidates: +12.5pp move, $55K activity, multi-outcome confirmation.
10 more hydrated outcomes are available from the event analysis.
50 additional outcomes were omitted by the bounded event limit.
22%
-6.5pp
OpenAI announces it has achieved AGI before 2027?
This cleared the participation bar — worth checking before you open Polymarket.
OpenAI announces it has achieved AGI before 2027? moved -6.5pp over 24 hours. Sharpest stored-history interval: fell 5.0pp, from 20% to 15%, between 11:39 and 12:00 UTC. The move was accompanied by substantial recent activity and adequate liquidity.
Ranked #4 of 40 candidates: -6.5pp move, $16K activity.
8 active outcomes · source-grouped
76%
-6.0pp
AfD
This cleared the participation bar — worth checking before you open Polymarket.
AfD moved -6.0pp over 24 hours. Sharpest stored-history interval: rose 4.0pp, from 80% to 84%, between 16:00 and 17:00 UTC. Its direction diverged from another moving outcome in the same source event, making the relative repricing worth checking.
Ranked #5 of 40 candidates: -6.0pp move, $10K activity, multi-outcome confirmation.
Weaker signals
Moves that passed basic credibility gates but not the primary discovery floors. Monitor, do not treat as equal to the overnight shortlist.
10 active outcomes · source-grouped
13%
-38.0pp
↓ 5.90%
Interesting move, but the market looks thin. Treat it as a weaker signal.
↓ 5.90% moved -38.0pp over 24 hours. Sharpest stored-history interval: fell 29.0pp, from 51% to 22%, between 07:00 and 08:00 UTC. Other active outcomes in the same source event also moved during comparable stored coverage, making the event-level repricing worth reviewing.
Ranked #6 of 40 candidates: -38.0pp move, $3K activity, multi-outcome confirmation.
Markets carried forward from the previous brief into today's edition.
Included because probability moved +15.3pp with fresh data and high signal quality.
Meaningful move
Included because probability moved +12.5pp with fresh data and high signal quality.
Meaningful move
Included because probability moved +5.3pp with fresh data and medium signal quality.
Meaningful move
Stable consensus — high liquidity but negligible 24h move (0.0pp).
Stable consensus
Stable consensus — high liquidity but negligible 24h move (0.0pp).
Stable consensus
Stable consensus — high liquidity but negligible 24h move (0.0pp).
Stable consensus
Stable consensus — high liquidity but negligible 24h move (0.0pp).
Stable consensus
Stable consensus — high liquidity but negligible 24h move (+0.1pp).
Stable consensus
Markets featured in the previous brief that are not in today's edition.
Resolution watch: market is near-certain or awaiting resolution — not a fresh probability signal.
Resolution watch
Included because probability moved -3.0pp with fresh data and high signal quality.
Meaningful move
Included because probability moved -2.0pp with fresh data and high signal quality.
Meaningful move
Included because probability moved +3.0pp with fresh data and medium signal quality.
Meaningful move
Included as high activity, not a mover. probability changed only +0.3pp.
High activity
Included as high activity, not a mover. probability changed only -0.1pp.
High activity
AI summaries are built from stored Polymarket market data, not unsourced external knowledge.
16 active outcomes · source-grouped
23%
-33.4pp
Alexandru Nazare
Interesting move, but the market looks thin. Treat it as a weaker signal.
Alexandru Nazare moved -33.4pp over 24 hours. Sharpest stored-history interval: fell 15.4pp, from 44% to 29%, between 21:00 and 22:00 UTC. Other active outcomes in the same source event also moved during comparable stored coverage, making the event-level repricing worth reviewing.
Ranked #7 of 40 candidates: -33.4pp move, $6K activity, multi-outcome confirmation.
10 more hydrated outcomes are available from the event analysis.
20 additional outcomes were omitted by the bounded event limit.
5 active outcomes · source-grouped
45%
-26.0pp
$50M
Interesting move, but the market looks thin. Treat it as a weaker signal.
$50M moved -26.0pp over 24 hours. Stored-history window: fell 32.0pp from 77% to 45%; no single sharp inflection was detected. Other active outcomes in the same source event also moved during comparable stored coverage, making the event-level repricing worth reviewing.
Ranked #8 of 40 candidates: -26.0pp move, $636 activity, multi-outcome confirmation.
16 active outcomes · source-grouped
88%
+10.7pp
Cam Schlittler
Interesting move, but the market looks thin. Treat it as a weaker signal.
Cam Schlittler moved +10.7pp over 24 hours. Sharpest stored-history interval: rose 8.0pp, from 79% to 87%, between 03:00 and 04:00 UTC. Its direction diverged from another moving outcome in the same source event, making the relative repricing worth checking.
Ranked #9 of 40 candidates: +10.7pp move, $1K activity, multi-outcome confirmation.
10 more hydrated outcomes are available from the event analysis.
11 additional outcomes were omitted by the bounded event limit.
Probably noise
Exact credibility failures are shown so weak participation is not mistaken for signal.
17%
—
Clarity Act (H.R.3633) signed into law in 2026?
Shown only to explain why EventAlpha would not put this on the overnight shortlist.
Probability or movement data is incomplete.
Failed primary floor: 24h move 0.0pp is below 5pp.
Ranked #39 of 40 candidates: $91K activity.
2 active outcomes · source-grouped
88%
—
Will the Democratic Party control the House after the 2026 Midterm elections?
Shown only to explain why EventAlpha would not put this on the overnight shortlist.
Probability or movement data is incomplete.
Failed primary floor: 24h move 0.0pp is below 5pp.
Ranked #40 of 40 candidates: $84K activity.