KalshiCheck availabilityKYC required2% feeVerified resolution dataFairly calibratedData quality warningNo trading activity
Data as of Sep 15, 2026, 4:52 PM UTC · policy pm-quality-3
Current implied probability
Before 2028 0%Leader of 5 outcomes
Market quality
29 / 100
Low quality24h Volume
—
Liquidity
—
Liquidity unknownSpread
8.0 pt
Wide spreadMarket data
Updated 8 minutes ago
Sep 12, 26, 10:00 PM UTCJan 7, 28, 3:00 PM UTC
Trends
0%
0%
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0%
Related Markets
Related questions for context, not a comparison of equivalent contracts.
All Millennium Prize Problems solved before EOY?
Manifold MarketsAll Millennium Prize Problems solved before May 2027?
Manifold MarketsHow many of the 7 Millennium Prize Problems will be solved by EOY 2030?
Manifold MarketsHow many more Millennium Prize Problems will AI solve in 2026?
PolymarketWhich Millennium Prize Problem will AI solve next?
PolymarketOpenAI announces another Millennium Prize solution by which date?
PolymarketRules
If all remaining Millennium Prize Problems are independently resolved before Jan 1, 2028 under the Payout Criterion and each resolution remains qualifying through expiration, then the market resolves to Yes.
Settles via:The Washington PostThe Economistthe Clay Mathematics Institutethe New York TimesBloomberg NewsThe Wall Street Journalthe American Mathematical Societythe International Mathematical UnionThe Guardianthe Associated PressReuters
- For purposes of this Contract, Birch and Swinnerton-Dyer Conjecture, Hodge Conjecture, P versus NP Problem, Riemann Hypothesis, and Yang–Mills Existence and Mass Gap Problem is considered resolved if at least one of the following occurs and has not been retracted, withdrawn, repudiated, or rescinded prior to the Expiration time:
- A peer-reviewed article presenting a complete proof, a complete disproof, or a counterexample establishing the falsity of the conjecture, in the conjecture's original form as specified by the Exchange at Issuance, has been published in one or more Source Agency peer-reviewed journals.
- A recognized authoritative body for the academic field of the conjecture, including but not limited to Annals of Mathematics, the American Mathematical Society, the International Mathematical Union, a national academy of sciences, the Nobel Foundation, or an equivalent governing or recognition body for the relevant academic field, has officially recognized in a written communication that the conjecture, in its original form as specified by the Exchange at Issuance, has been resolved by reference to a specific written work.
- At least two Source Agencies have published reporting describing the conjecture, in its original form as specified by the Exchange at Issuance, as having been proven, disproven, or otherwise resolved by reference to a specific publicly available written work, and no Source Agency has, prior to the Expiration time, published reporting that such written work has been formally retracted by its author(s) or by any publishing journal, has been formally withdrawn or repudiated by its author(s), or contains an identified error that has not been publicly corrected or addressed by the author(s) in a subsequent publication or amendment.
- If all remaining Millennium Prize Problems are independently resolved before Jan 1, 2029 under the Payout Criterion and each resolution remains qualifying through expiration, then the market resolves to Yes.
Open markets
SciencePOLYMARKETWill the US confirm that aliens exist by which date?
- December 31+0.3pt4%
- April 300%
- June 300%
+3 more outcomes
- Total Vol
- $67.6M
- 24h Vol
- $524.6K
KALSHIWill the U.S. confirm that aliens exist?
- Before Jan 20, 202922%
- Before 2028+2.0pt15%
- Before 2027+0.1pt6%
+5 more outcomes
- Total Vol
- $33.8M
- 24h Vol
POLYMARKETAI wins IMO gold medal in 2026?
- No+2.0pt82%
- Yes-2.0pt18%
- Total Vol
- $22K
- 24h Vol
- $4.9K
KALSHIWhen will the next Millennium Prize be awarded?
- Before 2030+8.9pt80%
- Before 203580%
- Before 2029+0.1pt30%
+2 more outcomes
- Total Vol
- $296.9K
KALSHIHow many major Atlantic hurricanes will there be in 2026?
- Above 0-4.0pt35%
- Above 1-2.0pt13%
- Above 2-6.0pt6%
+5 more outcomes
- Total Vol
KALSHIWhen will the Riemann hypothesis be solved?
- Before 2035+1.0pt51%
- Before 203247%
- Before 203030%
+1 more outcomes
- Total Vol
- $137.1K
- 24h Vol
- $2.4K
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- Where will 2026 rank among the hottest years on record?
- When will an AI lab solve another Millennium Prize Problem?
- US grants license for new nuclear reactor before 2027?
- Will 2026 be the hottest year ever?
- What will be the largest source of global primary energy consumption in 2030?
- Hantavirus vaccine in 2026?
- US test scores in Reading in 2026?
- How many 7.0 or above earthquakes in 2026?
Frequently asked questions
- What are the current odds for When will all Millennium Prize Problems be solved??
- Kalshi prices Before 2028 at 0% as of September 15, 2026.
- When does When will all Millennium Prize Problems be solved? resolve?
- When will all Millennium Prize Problems be solved? is scheduled to resolve on January 7, 2028.
- How is When will all Millennium Prize Problems be solved? settled?
- Kalshi settles this market as follows: If all remaining Millennium Prize Problems are independently resolved before Jan 1, 2028 under the Payout Criterion and each resolution remains qualifying through expiration, then the market resolves to Yes.