2026年5月22日 / 美国东部时间下午2:50 / 哥伦比亚广播公司新闻
作者：玛丽·坎宁安
美国众议院监督委员会周五表示，将针对预测市场平台用户涉嫌内幕交易事件，对卡拉希（Kalshi）和波利市场（Polymarket）展开调查。
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该委员会主席、肯塔基州众议员詹姆斯·科默已分别致信卡拉希首席执行官塔雷克·曼苏尔和波利市场首席执行官沙恩·科普兰，要求提供内部文件，以查明两家公司为打击内幕交易所采取的措施。
科默特别要求卡拉希和波利市场提供以下信息：平台如何调查潜在内幕交易，以及针对国内外账户持有人的身份验证流程。
波利市场和卡拉希允许用户对选举、体育赛事、地缘政治动向等未来事件的结果进行投机交易。尽管这两家平台的人气飙升，但此前一系列时机可疑的交易引发了人们对内幕交易的担忧，因此也招致了议员们的审查。
在周五发出的信函中，科默要求曼苏尔和科普兰提供与伊朗战争以及特朗普政府抓捕委内瑞拉前领导人尼古拉斯·马杜罗相关的平台交易活动信息。
根据最近一期《60分钟》的报道，数据分析公司Bubblemaps的调查发现，共有9个波利市场账户通过准确预判冲突中关键节点的时间，总共获利240万美元。
今年4月，联邦检察官指控一名美国特种部队士兵涉嫌利用机密政府信息押注马杜罗下台，这笔交易为其带来了超过40万美元的收益。
blob:https://www.cbsnews.com/06dd926d-294b-4f33-b747-24426c536700
这名38岁的士兵甘农·肯·范·戴克被指控非法使用机密政府信息谋取私利、窃取非公开政府信息、商品欺诈、电信欺诈以及进行非法货币交易。他已提出无罪抗辩。
波利市场的一位发言人周五在给哥伦比亚广播公司新闻的声明中表示，该公司“拥有全面的市场诚信框架”。
卡拉希也强调了其为防范内幕交易所做的努力。该公司发言人伊丽莎白·戴安娜告诉哥伦比亚广播公司新闻，他们已实施了“全面的”防范措施。
近几个月来，两家平台都收紧了相关规定，以防止用户利用机密信息进行交易。
今年4月，卡拉希经公司调查发现三名国会候选人在本选情上进行赌博，随后对三人处以罚款，并将其账户封禁五年。这家预测市场平台现在已禁止国会议员创建账户。
波利市场今年3月实施的一项新规定还禁止那些“拥有可能影响事件结果的权威或影响力职位”的交易员对该事件下注。
编辑：阿兰·谢特
House lawmakers launch insider trading probe into Kalshi and Polymarket
May 22, 2026 / 2:50 PM EDT / CBS News
By Mary Cunningham
The House Oversight Committee said on Friday that it is opening an investigation into Kalshi and Polymaket over alleged incidents of insider trading by users of the prediction markets.
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Rep. James Comer of Kentucky, the panel’s chairman,sent letters to Kalshi CEO Tarek Mansour and Polymarket CEO Shayne Coplan requesting internal documents to determine what the companies are doing to deter insider trading.
Specifically, Comer asked Kalshi and Polymarket to provide information on how they investigate potential insider trading and on the identity verification processes for domestic and international account holders.
Polymarket and Kalshi allow users to speculate on the outcome of future events, such as elections, sports and geopolitical developments. While their popularity has skyrocketed, they’ve also drawn scrutiny from lawmakers after a series of suspiciously timed bets sparked concerns about insider trading.
In his letter on Friday, Comer requested information from Mansour and Coplan on trading activity on their platforms tied to the Iran war and to the Trump administration’s capture of former Venezuelan leader Nicolás Maduro.
According to a recent “60 Minutes” report, an investigation by data analytics firm Bubblemaps found that 9 Polymarket accounts made a total of $2.4 million by correctly guessing the dates of pivotal moments in the conflict.
In April, federal prosecutors charged a U.S. special forces soldier with allegedly using confidential government information to bet on Maduro’s removal from office, a trade that netted more than $400,000.
blob:https://www.cbsnews.com/06dd926d-294b-4f33-b747-24426c536700
The soldier, Gannon Ken Van Dyke, 38, has been charged with unlawful use of confidential government information for personal gain, theft of nonpublic government information, commodities fraud, wire fraud and making an unlawful monetary transaction. He has pleaded not guilty.
In a statement to CBS News on Friday, a Polymarket spokesperson said the company “maintains a comprehensive market integrity framework.”
Kalshi also touted its efforts to prevent insider trading. Spokesperson Elisabeth Diana told CBS News that the company has implemented “comprehensive” safeguards.
In recent months, both platforms have tightened their rules to prevent users from trading on confidential information.
In April, Kalshi fined three congressional candidates and suspended their accounts on the platform for five years after a company investigation found they gambled on their own elections. The prediction market platform now bans members of Congress from creating accounts.
A new rule Polymarket implemented in March also prohibits traders from betting on an event if they “hold a position of authority” or influence that could affect its outcome.
Edited by Alain Sherter
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