斯坦福研究称Polymarket五分钟比特币押注市场疑似操纵者获利820万美元

Odaily Planet Daily reports that researchers at Stanford University have found signs of manipulation in Polymarket's five-minute bitcoin betting market. The study analyzed contract data over approximately two months and discovered recurring one-way trading pulses on Binance that briefly affected bitcoin prices seconds before the betting period ended, benefiting traders with aligned positions. The researchers described this pattern as "temporary manipulation to push up spot prices" and pointed out that such contracts have a structural vulnerability, where participants can influence the outcome by trading the underlying asset that determines the win or loss. A Polymarket spokesperson stated that the platform uses multiple independent price oracles to ensure accuracy and plans to transition some markets to settlement methods using longer time windows next year to enhance market integrity. The study estimates that the suspected manipulator profited approximately $8.2 million over two months, mainly from retail losses.