Kalshi Denies Wash Trading After Repeated $5,499 Ether Trades
Key Facts
An analysis of Kalshi's public records found that Ether perpetual trades valued within $2 of $5,499 accounted for $7.7 million, or 57%, of a $13.5 million sample from September 17 through September 20, 2026. Kalshi denied that the pattern showed wash trading.
The pattern extended beyond that sample: recurring target sizes appeared in 43 of 46 one-hour samples CoinDesk examined from June 19 through September 20, 2026. Public data, however, does not identify the traders or by itself establish collusion or wrongdoing.
Kalshi said the trades came from one market maker posting fixed-size orders under a program that pays a monthly amount for maintaining liquidity, with multiple traders taking the other side. The platform also said it mechanically blocks self-matching and found no evidence of collusion or wash trading; those account-level assertions cannot be independently verified through the anonymized public feed.
The market significance is that trading volume measures total turnover, not the risk left open, so repeated orders can lift reported volume without implying equivalent directional pressure on ETHUSD. ETHUSD closed September 22, 2026 at $2,759.13, within a $2,715.91-$2,777.55 range. Any separate regulatory investigation still requires confirmation in an official CFTC statement.