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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 577 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 $74.12M · K 33.41M contractsWill the US confirm that aliens exist before 2027?
Kalshi: Will the U.S. confirm that aliens exist before 2027?
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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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Which companies will officially announce an IPO this year?
K 2.09M contracts
Pandemic in 2026?
PM $18.62M · K 984.2K contractsHantavirus pandemic in 2026?
Kalshi: Pandemic in 2026?
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Will WHO declare Hantavirus a Public Health Emergency of International Concern this Year?
K 2.02M contracts
Measles cases in U.S. in 2026?
PM $8.13M · K 629.9K 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?
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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?
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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?
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Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.
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Will Americans receive tariff stimulus checks?
K 1.51M contracts
When will Anthropic officially announce an IPO?
K 1.26M contracts
Which company has the best AI model end of October?
PM $5.45M · K 14.77M contractsWill Google have the best AI model at the end of October 2026?
Kalshi: Best AI on Dec 31, 2026? (Gemini)
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Will Anthropic have the best AI model at the end of December 2026?
Kalshi: Best AI on Dec 31, 2026? (Claude)
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Will Anthropic have the best AI model at the end of October 2026?
Kalshi: Best AI on Dec 31, 2026? (Claude)
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Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.
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Top Artist on Spotify U.S. 2026
K 1.18M contracts
Where will 2026 rank among the hottest years on record?
PM $3.79M
Which AI company will have the best coding model at the end of 2026?
K 1.16M contracts
Top artist on Spotify in 2026?
PM $1.73M · K 818.3K contractsWill Bad Bunny be the top artist for 2026?
Kalshi: Who will be the top Spotify artist this year? (Bad Bunny)
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Will Taylor Swift be the top artist for 2026?
Kalshi: Who will be the top Spotify artist this year? (Taylor Swift)
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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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Which companies will the US take a stake in this year?
K 1.10M contracts
Ebola pandemic in 2026?
PM $784.1K
US grants license for new nuclear reactor before 2027?
K 833.8K contracts
FDA approves Retatrutide this year?
PM $595.2K
How many launches will SpaceX have in 2026?
K 741.1K contracts
How many SpaceX Starship launches reach space in 2026?
PM $525.0K
Grand Theft Auto VI: The Album · Features
K 721.6K contracts
Plague pandemic in 2026?
PM $493.1K
When will an AI lab solve another Millennium Prize Problem?
PM $460.4K · K 10.4K contractsWill an AI lab announce another Millennium Prize solution by December 31, 2027?
Kalshi: Will any AI lab solve a Millennium Prize Problem before 2028?
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Will an AI lab announce another Millennium Prize solution by December 31, 2026?
Kalshi: Will any AI lab solve a Millennium Prize Problem before 2027?
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When will Anthropic release Mythos?
K 714.7K contracts
NASA lands on the moon?
K 554.0K contracts
How many SpaceX launches in 2026?
PM $336.4K
Washington aerospace manufacturing employment average in 2026
K 522.7K contracts
When will OpenAI achieve AGI?
PM $331.3K · K 868.2K contractsOpenAI announces it has achieved AGI before 2027?
Kalshi: Will OpenAI announce the creation of AGI? (Before 2027)
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Will a Chinese company have a top ___ AI model by December 31?
PM $278.2K · K 140.2K contractsWill a Chinese company have the best AI model by December 31?
Kalshi: Will a Chinese AI model be #1 this year?
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Best AI in Oct 2026?
K 510.9K contracts
Will Stripe acquire PayPal this year?
PM $187.0K · K 29.8K contractsWill Stripe acquire Paypal in 2026?
Kalshi: Will Stripe and Advent International (collectively) announce acquisition of PayPal before Jan 1, 2027?
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Will Stripe acquire any part of Paypal in 2026?
Kalshi: Will Stripe and Advent International (collectively) announce acquisition of PayPal before Jan 1, 2027?
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When will OpenAI officially announce an IPO?
K 510.8K contracts
OpenAI market share this week
K 508.1K contracts
Hantavirus vaccine in 2026?
PM $142.4K
Google market share this week
K 478.4K 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?
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DeepSeek market share this week
K 450.5K contractsRussia pneumonic plague spreads abroad?
PM $111.9K
Bank of Russia rate decision in October
PM $96.4K · K 4.0K contractsWill the Bank of Russia make no change to the key rate after the October Meeting?
Kalshi: Will the Bank of Russia maintain current rate at the October Board of Directors’ key rate meeting?
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Will the Bank of Russia decrease the key rate after the October Meeting?
Kalshi: Will the Bank of Russia cut 1-25bps at the October Board of Directors’ key rate meeting?
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Will the Bank of Russia increase the key rate after the October Meeting?
Kalshi: Will the Bank of Russia hike 1-25bps at the October Board of Directors’ key rate meeting?
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Which companies will have a top-ranked AI model this year?
K 425.0K contracts
Will OpenAI or Anthropic IPO first?
K 420.6K contractsAnother pneumonic plague case in Russia by...?
PM $94.8K
Will the FDA approve any psychedelic substance for medical use this year?
K 414.1K contracts
Strava IPO Closing Market Cap
PM $91.6K
Lead Bank in Anthropic's IPO?
PM $89.8K · K 41.1K contractsWill Morgan Stanley or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?
Kalshi: Will Morgan Stanley serve as lead-left underwriter on Anthropic's IPO?
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Will Goldman Sachs or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?
Kalshi: Will Goldman Sachs serve as lead-left underwriter on Anthropic's IPO?
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Will Citigroup or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?
Kalshi: Will Citigroup serve as lead-left underwriter on Anthropic's IPO?
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Which countries will report an Ebola case in 2026?
K 386.9K contracts
Boeing commercial airplane deliveries in 2026
K 376.3K contracts
Bank of Mexico rate decision in November
PM $68.8K · K 37.7K contractsNo change in Bank of Mexico’s interest rates after November 2026 meeting?
Kalshi: Will the Bank of Mexico Maintain current rate at the November Bank of Mexico Governing Board meeting?
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Bank of Mexico decreases interest rates by 25 bps after November 2026 meeting?
Kalshi: Will the Bank of Mexico Cut 25bps at the November Bank of Mexico Governing Board meeting?
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Bank of Mexico increases interest rates by 25 bps after November 2026 meeting?
Kalshi: Will the Bank of Mexico Hike 25bps at the November Bank of Mexico Governing Board meeting?
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When will the next Millennium Prize be awarded?
K 332.3K contracts