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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 925 event groups
Ranked within each platform by reported lifetime volume. Polymarket reports dollars; Kalshi reports contracts.

Which companies will officially announce an IPO this year?
K 2.09M 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.
Saved prices; check contract rules.

Will Americans receive tariff stimulus checks?
K 1.51M contracts
Largest IPO by market cap in 2026?
PM $6.62M
What will Trump say during his rally in Kentucky?
K 1.29M contracts
How many 7.0 or above earthquakes in 2026?
PM $1.48M
When will Anthropic officially announce an IPO?
K 1.26M contracts
New pandemic in 2026?
PM $1.24M
Which AI company will have the best coding model at the end of 2026?
K 1.16M contracts
How many large volcano eruptions (VEI ≥4) in 2026?
PM $1.17M
Which companies will the US take a stake in this year?
K 1.10M contracts
10.0 or above earthquake before 2027?
PM $833.2K
Avengers: Doomsday: Cast
K 944.1K contracts
Will any Category 4 hurricane make landfall in the US in before 2027?
PM $350.6K
When will OpenAI officially announce an IPO?
K 510.6K contracts
9.0 or above earthquake before 2027?
PM $332.5K
Will there be an 8 magnitude earthquake in California before 2027?
K 502.2K contracts
5kt meteor strike in 2026?
PM $314.9K
Will 2026 be the hottest year ever?
K 426.7K contracts
Natural Disaster in 2026?
PM $250.2K
Will OpenAI or Anthropic IPO first?
K 420.5K contracts
New COVID variant of concern before 2027?
PM $247.2K
Boeing commercial airplane deliveries in 2026
K 376.3K contracts
Major meteor strike (10kt+) in 2026?
PM $209.4K
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?
Related contracts
Will Stripe acquire any part of Paypal in 2026?
Kalshi: Will Stripe and Advent International (collectively) announce acquisition of PayPal 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
Where will it rain this weekend (Oct 17 - Oct 18)?
K 226.1K contracts
Highest temperature in Cape Town on October 18?
PM $176.2K
Robinhood funded customers in 2026
K 218.8K contracts
When will the Danube River return to normal levels?
PM $150.5K
Where will it rain on Oct 18, 2026?
K 216.1K contracts
Major volcano eruption (VEI ≥6) in 2026?
PM $147.8K
Which companies will release a Fully AI-generated multi-episode scripted series before 2027?
K 192.4K contracts
Will any Category 5 hurricane make landfall in the US in before 2027?
PM $142.8K
Will there be a Trump economic boom?
K 181.3K contracts
When will the Rhine River return to normal levels?
PM $134.0K
When will any company achieve AGI?
K 180.3K contracts
Highest temperature in Wuhan on October 18?
PM $127.6K
American Express cards-in-force in Q3
K 179.7K contracts
1 megaton meteor strike in 2026?
PM $117.5K
Will a hurricane make landfall in Hawaii in 2026?
K 171.3K contracts
What will the peak RONI be for the 2026–27 El Niño?
PM $104.4K
Bank of Russia rate decision in October
PM $95.9K · K 3.4K 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?
Related contracts
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?
Related contracts
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?
Related contracts
Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.
Saved prices; check contract rules.

How many Semi Trucks will Tesla Produce in a quarter in 2026?
K 167.5K contracts
What will Trump say this week?
K 161.3K contracts
Strava IPO Closing Market Cap
PM $91.6K
How many major Atlantic hurricanes will there be in 2026?
K 152.8K contracts