Nikkei & S&P 500 Predictions

What will the market do next?

Prio is a market prediction app where you can forecast the Nikkei 225 and S&P 500, compare your predictions with the crowd, and track how accurate your market outlook really is.

Instead of only reading market news or checking charts, Prio lets you make your own prediction first and review the result later. See how your forecast compares with the actual market outcome and with other participants.

KEY FEATURES

■ Predict the Nikkei 225 and S&P 500

Choose between two major stock market indexes: the Nikkei 225 and S&P 500.

Make:
• Rise or fall predictions for the next market move
• Price predictions for 1 week ahead
• Price predictions for 1 month ahead

■ Predict while checking the market

View market charts and reference prices before submitting your forecast.

You can update your prediction while the prediction window is still open.

■ See the crowd forecast

After prediction submissions close, aggregated results become available.

For rise/fall predictions, you can see:
• Percentage predicting a rise
• Percentage predicting a fall
• Number of participants

For price predictions, you can see:
• Median prediction
• Average prediction
• Number of votes
• Overall market sentiment

■ Compare your prediction with the actual result

Once the result is available, compare your forecast with what actually happened.

For direction predictions, see whether your call was correct.
For price predictions, review your prediction error.

■ Track your prediction accuracy

Prio keeps a record of your forecasting performance, including:
• Total predictions
• Settled predictions
• Direction prediction accuracy
• Average error for 1-week predictions
• Average error for 1-month predictions

You can also review your past prediction history at any time.

■ Compete in rankings

Compare your forecasting performance with other participants.

Direction rankings are based on prediction accuracy.
Price prediction rankings are based on average error.

You can also see your rank and top percentile when eligible.

■ Start without creating an account

You can participate anonymously without logging in.

If you already have a Prio account, you can sign in and continue using your existing prediction history.

WHO IS PRIO FOR?

Prio is for people who:
• Follow the Nikkei 225 or S&P 500
• Enjoy making stock market predictions
• Want to test their own market outlook
• Want to compare their forecast with the crowd
• Want to track prediction accuracy over time
• Enjoy improving through rankings and repeated forecasts

RESULTS ARE REVEALED AFTER PREDICTIONS CLOSE

Crowd results are published only after the prediction period ends.

This means you can make your own market prediction first, without being influenced by the crowd, and compare your view afterward.

Predict the next move.
Compare with the crowd.
Measure your accuracy.

Try Prio and put your market outlook to the test.

DISCLAIMER

Prio is an informational market prediction and comparison service. It does not provide personalized investment advice, recommend the purchase or sale of any financial product, or guarantee investment performance. All investment decisions are your own responsibility.