中文
美国众议院监督委员会主席科默宣布启动对预测平台 Kalshi 和 Polymarket 的内幕交易调查，已向两家平台 CEO 发出调查信函，要求6月前回复。
这一行动发生在此前印度对 Polymarket 采取打击措施之后。预测市场作为新兴金融工具，其监管框架仍处于灰色地带。
调查重点包括：是否存在利用未公开信息获利的交易行为；平台是否有足够的监控机制识别和阻止内幕交易；以及预测市场是否应纳入美国商品期货交易委员会（CFTC）的监管范围。
如果调查证实存在系统性内幕交易问题，可能推动美国对预测市场出台更严格的监管规则，影响这一新兴行业的合规成本和发展空间。
English
House Oversight Chairman Comer has launched an investigation into insider trading on prediction market platforms Kalshi and Polymarket, sending letters to both CEOs with a deadline to respond by June.
The move follows India’s recent crackdown on Polymarket. Prediction markets, as an emerging financial instrument, operate in a regulatory gray area.
The probe will examine whether trades exploiting non-public information have occurred, whether platforms have adequate monitoring mechanisms to detect and prevent insider trading, and whether prediction markets should fall under CFTC oversight.
If systemic insider trading is confirmed, it could push the US toward stricter regulation of prediction markets, affecting compliance costs and growth prospects for this nascent industry.