Coverage dated March 23, 2026

Kalshi and Polymarket rush to ban insider trading as senators move to curb prediction markets

Headline from WFMZ Allentown

NEW YORK (AP) — Kalshi and Polymarket, the two biggest prediction market platforms, rushed to institute new industry guardrails on Monday after two key senators announced legislation that could severely

WFMZ Allentown's own description from its feed. We collect headlines and these descriptions, not full articles; read the original reporting below.

Earlier updates in this story

Read the reports

Reports & sources

11 articles, oldest first.

WFMZ Allentown
Kalshi and Polymarket rush to ban insider trading as senators move to curb prediction markets (opens WFMZ Allentown)
Published Mar 23, 2026
WFMZ Allentown's feed description
NEW YORK (AP) — Kalshi and Polymarket, the two biggest prediction market platforms, rushed to institute new industry guardrails on Monday after two key senators announced legislation that could severely
NBC 5 Dallas-Fort Worth
Kalshi and Polymarket place new bans on insider trading as senators move to curb prediction markets (opens NBC 5 Dallas-Fort Worth)
Published Mar 23, 2026
NBC 5 Dallas-Fort Worth's feed description
Kalshi and Polymarket rushed to institute new guardrails after two senators announced legislation that could severely curtail the industry’s prospects.
The Guardian
Kalshi and Polymarket ban insider trading as senators look to curb prediction markets (opens The Guardian)
Published Mar 23, 2026
The Guardian's feed description
Top prediction market sites usher in new guardrails after senators introduced bill that could limit booming industry

Identical headlines usually mean shared wire copy. They are counted as separate articles but are not independent confirmation.