CFTC reviews unusual trading activity on Kalshi’s Ether perpetuals

The Commodity Futures Trading Commission is taking a closer look at Kalshi’s Ether perpetual futures contracts after analysts flagged a striking pattern: a massive share of reported trading volume consisted of repetitive, fixed-size orders clustering tightly around the same price levels. The review puts one of the more ambitious crypto derivatives launches of 2026 under federal scrutiny before it has even found its footing.

Kalshi launched its Ether perpetual futures, traded under the ticker KXETHPERP, on June 4, 2026, one day after the platform rolled out Bitcoin perpetuals. Within the first two weeks, those Ether contracts generated more than $5.5B in cumulative volume.

What the data shows

Public analyses of Kalshi’s Ether perpetual data found that between 47% and 63% of notional volume on various days in September consisted of trades fixed almost exclusively at values between $5,499 and $5,500, later shifting to roughly $5,425.

The volume-to-open-interest ratios observed during the same period ranged from 61x to 174x. A ratio of 174x means the contracts were, in effect, being turned over 174 times relative to the amount of outstanding positions. Approximately 120,000 trades were flagged in the analyses underpinning these findings.

The CFTC, which holds regulatory oversight over Kalshi as a designated contract market, is reviewing the activity. No formal enforcement action has been announced as of the latest available reporting.

Kalshi’s explanation

Kalshi pushed back on the more alarming interpretations of the data. The company attributed the repetitive fixed-size orders to a single market maker operating under a liquidity provision program. That market maker was, according to Kalshi, using automated systems that execute in standardized increments, which naturally produces uniform trade sizes when viewed in aggregate.

The company also pointed to a temporary fee reduction it filed with the CFTC on September 16, bringing rates to 0.003% for eligible self-clearing participants.

On the question of wash trading, Kalshi said its rulebook explicitly prohibits self-trading and that the trades involved a legitimate variety of counterparties on the taking side.

Similar fixed-size patterns were observed in Kalshi’s Bitcoin perpetual data, though the Ether contracts have drawn the bulk of scrutiny.

Why this matters for crypto derivatives

Kalshi occupying CFTC-regulated territory is a significant development in U.S. crypto market structure. For years, American traders who wanted perpetual futures had no domestic regulated venue offering them. Kalshi’s perpetuals changed that, making it one of the first U.S.-licensed platforms to offer the product.

The platform also reported more than 350,000 cumulative traders by late September 2026. Kalshi filed for additional perpetual contracts as of September 2026, expanding its asset offerings while this review is still open.

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