Kalshi's Spot Bitcoin Perpetual Futures Contract Unleashes Leverage Risks

On August 23, trading YouTuber That Martini Guy tweeted about $84M in crypto longs getting wiped out in a single hour as Bitcoin dipped below $76,000 on its way to $81,000. This surge and subsequent drop highlighted the risks of leverage trading. According to Mansour, CEO of prediction market Kalshi, the launch of spot bitcoin perpetual futures contracts has rewired the market.

Kalshi's live contracts cleared $5.5 billion in their first two weeks after a June 3 debut, Bloomberg reported. The CFTC approved these contracts despite warnings from Benjamin Schiffrin, director of securities policy at Better Markets, that perpetual futures are one of the most dangerous crypto products for retail investors.

The launch of Kalshi's spot bitcoin perpetual futures contract has led to an influx of onshore perpetuals, with annual volume growing from $28 trillion in 2023 to over $90 trillion in 2025. This growth has created concerns about leverage and the risks it poses to retail investors, as seen in a single-hour liquidation event on August 22 where $529 million was liquidated, with $478 million of that being longs.