KalshiGeopoliticsUpdated 3m ago

When will nuclear fusion be achieved?

As of Oct 7, 2026, 9:06 AM ET, Kalshi priced this market at 49.8% (little changed over 24 hours). It had a bid-ask spread of 6.2 pts.

Market probability
49.8%
Little changed over 24 hours
4833 days until the event deadline
Deadline: December 31, 2039 at 11:59 PM ET

Too little market data to assess this move — treat the probability with caution.

This venue reports too little volume or book data for this market to judge the trading behind the price.

How credible was the move?

Three separate questions — a move can be genuine while the latest price is still settling. Methodology →

Move validity

Is the move backed by real trading and depth?

Insufficient data

This venue reports too little volume or book data for this market to judge the trading behind the price.

Consensus stability

Has the market settled at the new probability?

Stable

The probability has held near its current level over the past several hours.

Contract clarity

Will the rules resolve without ambiguity?

High

The resolution rules are relatively specific, with a named source and a defined deadline.

What this market actually measures

If nuclear fusion is achieved before Jan 1, 2040, then the market resolves to Yes.

This summary shows the opening of the venue's official rules. ProbCast has not yet generated an independent plain-English interpretation for this contract — review the full rules before relying on it.

View full official resolution rules

If nuclear fusion is achieved before Jan 1, 2040, then the market resolves to Yes.

Resolution source: If nuclear fusion is achieved before Jan 1, 2040, then the market resolves to Yes.

What could move this market next?

  • The market's deadline arrivesDecember 31, 2039 at 11:59 PM ET

    The contract must resolve based on what has happened by this date.

Derived from the contract's own mechanics as of Oct 7, 9:09 AM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.

Advanced analysis (experimental)

Research signals — these models are still accumulating the history needed for full validation, and they can disagree with the headline read. Model confidence: low · expected error ±26 pts.

Thin marketLegacy movement classifier: watch

What's happening

medium classifier confidence
Thin market

Thin book and/or wide spread. Small orders can move this price disproportionately, so any single print is noisy and easily overread.

  • Low liquidity score (26)
  • Wide spread (6.2 pts)

Read with caution —Read the latest price with caution; conditions make it an unreliable summary right now.

More details — reliability score, dynamics, durability
Reliability score
2Low
Where the price path tends to go next1081 observed
  • Illiquid / quiet99%

Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.

DurabilityHigh· half-life —
PredictabilityStable

Secondary read: leaning toward Stale price.

A read-only classification of the market environment — how much weight the current price deserves as a read of consensus. It describes conditions, never a trade.

Market data

24h volume

$0

Liquidity

$0

Total volume

$11.7K

Category
Geopolitics
Venue
Kalshi
Open interest
$2.6K
Spread
6.2 pts
Best bid
46.7%
Best ask
52.9%
Resolves
Dec 31, 2039
Resolution
If nuclear fusion is achieved before Jan 1, 2040, then the market resolves to Yes.
Change (pts)1H0.06H0.024H0.07D0.0

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