"Mention markets" have been created for betting on specific words that will be used by public figures such as Federal Reserve Chair Jerome Powell and Donald Trump.

Chris Beam suggests that some "mention markets," such as those betting on whether Donald Trump will use words like "tariff," "Iran," or "ceasefire," could have broader social and geopolitical implications.

The dominance of sports betting on Kalshi and Polymarket is declining as other categories, such as politics and crypto, are growing.