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Gemini Predictions: research and trade Gemini event contracts

Gemini Predictions is an event-contract venue covering crypto, economic releases, sports and other defined outcomes. The public board supports research before sign-in; execution and positions use Gemini’s own prediction product and contract rules.

3.5/ 5Editorial ratingEditorial assessment
Open Gemini Predictionsgemini.com
Available on
Web
Availability: public

Screenshots and interface

Product preview1 / 1

The market board presents Gemini’s event-contract offering.

What is Gemini Predictions?

Browse categories or search a question, compare YES/NO or multi-outcome quotes, then inspect the price chart and surrounding news context. Grouped events help compare related contracts. Read the precise event definition and observation time before treating prices as comparable across venues. A missing quote is not evidence of a zero-probability outcome.

The signed-in experience adds account-based trading and portfolio management, while Create Combo provides a separate combination workflow subject to its available quote and terms. These event contracts are distinct from Gemini spot-crypto products and from Polymarket: account eligibility, available order types and the applicable member fee schedule require their own checks.

Who it is for

  • Gemini users exploring event contracts.
  • Researchers comparing crypto and macro outcomes.
  • Traders comparing another venue’s prices after matching the rules.

Markets and platform rules

  • Discovery and related events

    Browse categories, search a specific question and compare grouped related contracts.

  • Quotes, charts and context

    Inspect YES/NO and multi-outcome prices, the price path and news information displayed with the market.

  • Create Combo

    Open the combination workflow and review the combo’s own available quote and contract terms.

  • Account portfolio

    Manage positions through the signed-in exchange account.

  • Maker/taker disclosure

    Use the published formula and the applicable member schedule to distinguish maker and taker costs.

Market participation workflows

Research a threshold

Read the event definition and observation time, then compare its chart with the current order quote.

Compare venue prices

Match the exact contract and settlement rules before comparing Gemini’s quote with another exchange.

Estimate the fee basis

Use the lower of the YES or NO prices, the contract count and your applicable maker/taker rate, rather than applying a percentage to the full stake.

Pricing and total cost

The published formula is min(P, 1−P) × number of contracts × applicable fee rate. The notice lists maker rate 0 and taker rate 0.05, with some member-specific schedules differing. The taker rate is not a flat 5% charge on the full stake.

Access and participation

  1. Browse the public prediction board.
  2. Open the exact event and read its rules.
  3. Sign in and complete the prediction product’s account requirements.
  4. Review funding and available order types.
  5. Check the final price, number of contracts and fee.
  6. Track the resulting position in the exchange account.

Useful links

What to check

  • Missing quotes should not be read as zero-probability outcomes.
  • Event contracts are separate from Gemini spot-crypto products.
  • A combo depends on its own available quote and terms.
  • Member-specific fees can differ from the general notice.

A closer look

Ratings & reviews

Editorial rating
3.5/ 5
0 user reviews
PredictionToolkit editorial

Our take on Gemini Predictions

Editorial rating: 3.5/5. Gemini supplies defined event contracts and a maker/taker formula that can be examined before comparing venues. The public board is only the starting point: a user's eligibility and member-specific fees, as well as an absent quote, still have to be resolved separately.

Assessment criteria
Task usefulness, documented scope, setup clarity, and access and cost transparency.
Assessment date
Documentation reviewed

Documentation-based assessment. How we rate

User reviews 0

The main score switches to user ratings after 5 published reviews.

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Frequently asked questions about Gemini Predictions

Is the fee just 5% of my purchase?

No. The published model uses the lower of the YES or NO prices, multiplied by the number of contracts and the applicable fee rate. It is not a flat percentage of the full purchase stake.

Can I browse before signing in?

Yes. The public board shows markets for research before account-based execution.

Are these Polymarket contracts?

No. Gemini Predictions offers its own event contracts rather than a Polymarket frontend.

Can I compare related outcomes?

Yes. The board groups related event contracts and provides search. Check the precise question and rules for each.