Open interest may be a better indicator of the influence of the prediction market, as it reflects the participants' risk-taking and capital commitment.

Currently, Kalshi and Polymarket together account for nearly 90% of the open interest share.

Of the remaining 10%, Opinion accounts for 8 points, and Predict Fun accounts for 1 point.

As a challenger, Predict Fun introduces the open interest earning feature, not sure if this will become a future industry standard🤔