Kalshi's crypto perpetuals product crossed $1 billion in daily trading volume on Monday, a milestone for the platform that launched the offering earlier this year. But the volume number masks a stark reality: Kalshi still holds just 0.0058% of the market's total open interest.
A billion-dollar day
The $1 billion figure marks the first time Kalshi's perpetuals have hit that threshold in a single day. The platform, known primarily for event contracts, has been pushing into crypto derivatives to capture a slice of a market dominated by giants like Binance and Bybit. Monday's volume suggests the push is gaining traction among traders, at least in terms of turnover.
The open interest gap
While $1 billion in daily volume is eye-catching, open interest tells a different story. At 0.0058% of the market's total, Kalshi's position is microscopic. Open interest measures the number of outstanding contracts, and a tiny share means the platform is not yet a meaningful home for longer-term positions. The contrast between high volume and low open interest points to rapid churn — traders piling in and out quickly rather than holding overnight.
Volume vs. depth
The ratio of volume to open interest at Kalshi is unusually high. For context, most established exchanges see daily volume at a multiple of open interest, but rarely by such an extreme factor. The data suggests Kalshi's perpetuals are being used for short-lived swings, not sustained exposure. That could be a feature for day traders, but it also raises questions about liquidity depth and the platform's ability to absorb large orders without slippage.
Kalshi hasn't disclosed plans to expand its perpetuals product or boost liquidity. The volume milestone will likely attract more traders and possibly regulators, given the platform's roots in regulated prediction markets. Whether Kalshi can convert its fleeting volume into lasting open interest is the open question. Monday's data shows it can move money — but not yet keep it.
