EventAlpha Daily Market Brief - September 30, 2026

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High-trust shortlist

Primary discovery only: ≥5pp move, ≥$10K activity, ≥$1K liquidity. Named events and moves first — not category vibes.

Fresh consensus shiftSignal: Medium

Which companies will have a #1 AI model by December 31?

14 active outcomes · source-grouped

92%

+67.1pp

Google

This cleared the participation bar — worth checking before you open Polymarket.

Google moved +67.1pp over 24 hours. Sharpest stored-history interval: rose 61.3pp, from 30% to 91%, between 20:00 and 21:00 UTC. Recent activity was materially above current liquidity, supporting a real repricing rather than an isolated thin-market tick.

Ranked #1 of 40 candidates: +67.1pp move, $14K activity.

Primary market 24h activity $14KGrouped event 24h activity $15KLiquidity per outcomeUpdated 30 Sept 2026, 23:00 UTCUnexplained repricing

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Compare 14 source-linked outcomes

Google92% · +67.1pp
Moonshot3% · -0.3pp
Z.ai9% · —
DeepSeek6% · —
Meta11% · —
OpenAI18% · —

8 more hydrated outcomes are available from the event analysis.

EventAlpha Daily Brief — 2026-09-30 Google AI model market surged 70pp 1. Which companies will have a #1 AI model by December 31? (92%, +67.1pp) https://www.theeventalpha.com/market/will-google-have-a-1-ai-model-by-december-31-2026-109512 2. Next Prime Minister of Romania? (25%, -9.6pp) https://www.theeventalpha.com/market/will-sorin-grindeanu-be-the-next-prime-minister-of-romania-166671 3. Brazil Presidential Election First Round: 2nd Place (32%, +7.3pp) https://www.theeventalpha.com/market/will-luiz-inacio-lula-da-silva-finish-in-second-place-in-the-first-round-of-the-365854 Full brief: https://www.theeventalpha.com/daily-brief/2026-09-30 Read-only. Not financial advice.

Interesting, but thinner participation

Moves that passed basic credibility gates but not the primary discovery floors. Monitor, do not treat as equal to the overnight shortlist.

Unexplained investigationSignal: Low

Will any AI model reach ___ Overall Arena Score by September 30?

3 active outcomes · source-grouped

98%

+95.5pp

1530

Interesting move, but the market looks thin. Treat it as a weaker signal.

1530 moved +95.5pp over 24 hours. Sharpest stored-history interval: rose 96.3pp, from 1% to 97%, between 20:00 and 21:00 UTC. The move pushed the market toward a resolution extreme.

Ranked #2 of 40 candidates: +95.5pp move, $3K activity.

Primary market 24h activity $3KGrouped event 24h activity $4KLiquidity per outcomeUpdated 30 Sept 2026, 23:00 UTCUnexplained repricing

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Compare 5 source-linked outcomes

153098% · +95.5pp
15403% · +0.9pp
15501% · -0.3pp
1510(resolved)100% · +45.5pp
1520(resolved)100% · —

Unexplained investigationSignal: Low

Will Apple release a new product line before 2027?

57%

+32.0pp

Will Apple release a new product line before 2027?

Interesting move, but the market looks thin. Treat it as a weaker signal.

Will Apple release a new product line before 2027? moved +32.0pp over 24 hours. Stored-history window: rose 32.5pp from 25% to 57%; no single sharp inflection was detected. The structured price path makes the change worth checking.

Ranked #8 of 40 candidates: +32.0pp move, $1K activity.

Primary market 24h activity $1KLiquidity $3KUpdated 30 Sept 2026, 23:00 UTCUnexplained repricing

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Deadline clusterSignal: Medium

Concrete FDV above ___ one day after launch?

7 active outcomes · source-grouped

85%

+29.0pp

$300M

Interesting move, but the market looks thin. Treat it as a weaker signal.

$300M moved +29.0pp over 24 hours. Sharpest stored-history interval: rose 23.0pp, from 44% to 67%, between 10:00 and 11:00 UTC. Other active outcomes in the same source event also moved during comparable stored coverage, making the event-level repricing worth reviewing.

Ranked #9 of 40 candidates: +29.0pp move, $2K activity, multi-outcome confirmation.

Primary market 24h activity $2KGrouped event 24h activity $14KLiquidity per outcomeUpdated 30 Sept 2026, 23:00 UTCUnexplained repricing

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Compare 7 source-linked outcomes

$300M85% · +29.0pp
$50M99% · —
$200M97% · +10.5pp
$100M98% · +1.2pp
$1B2% · -0.8pp
$800M12% · +4.2pp

1 more hydrated outcomes are available from the event analysis.

Deadline clusterSignal: Medium

Gemini 4.0 released by...?

7 active outcomes · source-grouped

73%

+25.5pp

October 15

Interesting move, but the market looks thin. Treat it as a weaker signal.

October 15 moved +25.5pp over 24 hours. Sharpest stored-history interval: rose 42.5pp, from 43% to 86%, 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 #10 of 40 candidates: +25.5pp move, $6K activity, multi-outcome confirmation.

Primary market 24h activity $6KGrouped event 24h activity $243KLiquidity per outcomeUpdated 30 Sept 2026, 23:00 UTCUnexplained repricing

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Compare 11 source-linked outcomes

Gemini 4.0 released by September 30, 2026?1% · -13.4pp
October 3189% · +8.5pp
October 1573% · +25.5pp
November 3097% · +4.0pp
October 542% · —
October 1048% · —

5 more hydrated outcomes are available from the event analysis.

Large moves we would not promote

Exact credibility failures are shown so weak participation is not mistaken for signal.

Noise trapSignal: Low

Trump out as President before 2027?

—

Trump out as President before 2027?

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: $99K activity.

Primary market 24h activity $99KLiquidity $380KUpdated 30 Sept 2026, 23:00 UTCDiscounted noise

Open investigate pack

Google AI model market surged 70pp

High-trust shortlist

Which companies will have a #1 AI model by December 31?

Copy a post-ready shortlist

Yesterday → Today

New Today

Next Prime Minister of Romania?

Brazil Presidential Election First Round: 2nd Place

MLB World Series Champion 2026

U.S. enacts AI safety bill before 2027?

Interesting, but thinner participation

Will any AI model reach ___ Overall Arena Score by September 30?

Will Apple release a new product line before 2027?

Concrete FDV above ___ one day after launch?

Gemini 4.0 released by...?

Large moves we would not promote

Trump out as President before 2027?

Still in Focus

Dropped Out

Strait of Hormuz traffic returns to normal by December 31?