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Explore the full Polymarket and Kalshi catalog. A group may contain related contracts with different settlement rules.
Showing 1-48 of 482 event groups
Ranked within each platform by reported lifetime volume. Polymarket reports dollars; Kalshi reports contracts.

Will the U.S. confirm that aliens exist?
PM $74.11M · K 33.40M contractsWill the US confirm that aliens exist before 2027?
Kalshi: Will the U.S. confirm that aliens exist before 2027?
Related contracts
Will the US confirm that aliens exist by October 31?
Kalshi: Will the U.S. confirm that aliens exist before Nov 1, 2026?
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Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.
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More tech layoffs in 2026 than in 2025?
PM $26.0K · K 31.50M contractsNo comparable saved prices

Which company has the best AI model end of October?
PM $5.43M · K 14.73M contractsWill Google have the best AI model at the end of October 2026?
Kalshi: Best AI on Dec 31, 2026? (Gemini)
Related contracts
Will Anthropic have the best AI model at the end of December 2026?
Kalshi: Best AI on Dec 31, 2026? (Claude)
Related contracts
Will Anthropic have the best AI model at the end of October 2026?
Kalshi: Best AI on Dec 31, 2026? (Claude)
Related contracts
Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.
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Which companies will officially announce an IPO this year?
K 2.09M contracts
Will WHO declare Hantavirus a Public Health Emergency of International Concern this Year?
K 2.02M contracts
Will Americans receive tariff stimulus checks?
K 1.51M contracts
When will Anthropic officially announce an IPO?
K 1.26M contracts
Top Artist on Spotify U.S. 2026
K 1.18M contracts
Which AI company will have the best coding model at the end of 2026?
K 1.16M contracts
Which companies will the US take a stake in this year?
K 1.10M contracts
When will OpenAI achieve AGI?
PM $325.4K · K 867.0K contractsOpenAI announces it has achieved AGI before 2027?
Kalshi: Will OpenAI announce the creation of AGI? (Before 2027)
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Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.
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US grants license for new nuclear reactor before 2027?
K 833.7K contracts
Top artist on Spotify in 2026?
PM $1.73M · K 816.5K contractsWill Bad Bunny be the top artist for 2026?
Kalshi: Who will be the top Spotify artist this year? (Bad Bunny)
Related contracts
Will Taylor Swift be the top artist for 2026?
Kalshi: Who will be the top Spotify artist this year? (Taylor Swift)
Related contracts
Will Drake be the top artist for 2026?
Kalshi: Who will be the top Spotify artist this year? (Drake)
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Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.
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How many launches will SpaceX have in 2026?
K 741.1K contracts
Grand Theft Auto VI: The Album · Features
K 714.4K contracts
When will Anthropic release Mythos?
K 713.7K contracts
Measles cases in U.S. in 2026?
PM $8.13M · K 629.5K contractsWill there be at least 5000 measles cases in the U.S. in 2026?
Kalshi: Will there be more than 5000 measles cases in 2026?
Related contracts
Will there be at least 6000 measles cases in the U.S. in 2026?
Kalshi: Will there be more than 6000 measles cases in 2026?
Related contracts
Will there be at least 7000 measles cases in the U.S. in 2026?
Kalshi: Will there be more than 7000 measles cases in 2026?
Related contracts
Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.
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NASA lands on the moon?
K 554.0K contracts
Washington aerospace manufacturing employment average in 2026
K 522.7K contracts
When will OpenAI officially announce an IPO?
K 510.6K contracts
Best AI in Oct 2026?
K 507.9K contracts
Google market share this week
K 464.8K contracts
Tesla Optimus released this year?
PM $132.9K · K 433.3K contractsWill Tesla release Optimus by December 31, 2026?
Kalshi: Tesla Optimus on sale before 2027?
Related contracts
Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.
Saved prices; check contract rules.

OpenAI market share this week
K 431.0K contracts
Which companies will have a top-ranked AI model this year?
K 424.9K contracts
Will OpenAI or Anthropic IPO first?
K 420.5K contracts
Will the FDA approve any psychedelic substance for medical use this year?
K 413.9K contracts
DeepSeek market share this week
K 403.1K contracts
Which countries will report an Ebola case in 2026?
K 386.7K contracts
Boeing commercial airplane deliveries in 2026
K 376.3K contracts
When will the next Millennium Prize be awarded?
K 332.3K contracts
Where will Waymo operate in 2026?
K 271.1K contracts
Best AI this week
K 259.7K contracts
Who will acquire Pinterest this year?
PM $32.0K · K 259.3K contractsWill OpenAI acquire Pinterest in 2026?
Kalshi: Will OpenAI announce acquisition of Pinterest before Jan 1, 2027?
Related contracts
Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.
Saved prices; check contract rules.

When will Starlink officially announce an IPO?
K 242.1K contracts
When will OpenAI release Astra 6.1?
K 238.6K contracts
How many launches will SpaceX have in October?
K 229.2K contracts
Robinhood funded customers in 2026
K 218.8K contracts
Which agencies will Trump eliminate?
K 200.4K contracts
Which AI will be the first to hit 1550 on Text Arena?
K 193.9K contracts
Which companies will release a Fully AI-generated multi-episode scripted series before 2027?
K 192.4K contracts
Will OpenAI increase the cost of ChatGPT?
K 184.8K contracts
Will there be a Trump economic boom?
K 181.3K contracts
When will any company achieve AGI?
K 180.3K contracts
American Express cards-in-force in Q3
K 179.7K contracts
Which country will be the next to send humans to the Moon?
K 171.2K contracts
How many Semi Trucks will Tesla Produce in a quarter in 2026?
K 167.5K contracts