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Sources: Kalshi has probed and flagged 400+ suspicious trades YTD, more than 2x the number it investigated in all of 2025; Polymarket has seen a similar uptick (Anirban Sen/Reuters)
Anirban Sen / Reuters: Sources: Kalshi has probed and flagged 400+ suspicious trades YTD, more than 2x the number it investigated in all of 2025; Polymarket has seen a similar uptick — Top prediction
Anirban Sen / Reuters: Sources: Kalshi has probed and flagged 400+ suspicious trades YTD, more than 2x the number it investigated in all of 2025; Polymarket has seen a similar uptick — Top prediction market platforms Kalshi and Polymarket have witnessed a surge in suspicious trades this year …
Source: Techmeme | 2026-05-16