Kalshi has told the Commodity Futures Trading Commission it plans to shut down its Volume Incentive Program on October 13, 2026. The Kalshi Volume Incentive Program wasn’t supposed to end until October 2027. That’s a cancellation almost exactly a year ahead of schedule, and it lands days after reporters and analysts started asking hard questions about Kalshi’s ether perpetual futures market.
What the Volume Incentive Program Actually Did
Kalshi filed the program with the CFTC back in February 2023 and launched it that March. The idea was simple. Pay traders a slice of a fixed reward pool based on how much they traded on the central limit order book, mostly on contracts priced between 3 cents and 97 cents.
More volume meant a bigger payout at the end of each term, which could run up to 31 days. Kalshi framed it as a way to keep its order books liquid and its prices efficient. For years, that’s roughly how it worked, with little outside scrutiny.
Why the Program Is Disappearing Now
The timing is hard to ignore. In late September, an analyst who goes by Beni flagged something odd in Kalshi’s ether perpetual market. Trades sized at exactly $5,500 made up somewhere between 48% and 58% of that market’s notional volume on several days between September 16 and September 20.
On one of those days, the contract showed roughly $539 million in 24-hour volume against only about $3.1 million in open interest. That gap, a volume-to-open-interest ratio reported as high as 174x, is the kind of pattern regulators associate with wash trading: trades that move volume numbers without reflecting real economic risk.
The Wall Street Journal reported the CFTC was examining the activity. Kalshi pushed back hard. In a September 22 blog post, the company said self-trading is mechanically blocked on its platform and that prearranged trades between the same parties are banned and monitored. Kalshi attributed the repeated $5,500 size to its market-maker arrangements, where a liquidity provider keeps a fixed-size order resting on the book and different traders simply keep hitting it. We’ve covered a similar dispute over Kalshi’s market mechanics before, when a wash-trading bot question made a Mamdani-related market go quiet, and the pattern of “is this real volume or program-driven volume” keeps resurfacing across Kalshi’s newer products, as detailed in our look at that earlier wash-trading mystery.
A spokesperson told reporters Kalshi had not been contacted by the CFTC and didn’t believe a formal examination was underway. The CFTC itself has not confirmed or denied looking into the matter publicly.
The CFTC Already Warned Exchanges About This
This isn’t the first time the CFTC has raised a flag on incentive programs like Kalshi’s. In August, the agency’s Division of Market Oversight issued a staff advisory on exactly this type of reward structure. The CFTC’s Advisory 26-23 warned that steep volume tiers and threshold-based bonuses “can encourage participants to trade solely to reach volume targets,” which raises the risk of wash trades and other abusive patterns.
The advisory told exchanges that had already filed incentive programs to review them for compliance and submit any needed amendments by September 14, 2026. The CFTC also noted a rising share of incentive-program filings from event-contract platforms were coming in procedurally or substantively deficient. Kalshi’s self-certification to end the Volume Incentive Program came two weeks after that deadline, on September 28. We touched on how the agency’s broader oversight apparatus for these platforms works in our explainer on the CFTC’s Innovation Advisory Committee, which gives useful background on how seriously the agency now treats prediction-market plumbing.
Kalshi’s own filing gives no stated reason for the early termination. It simply cites a house rule letting the exchange end incentive programs “as the Exchange determines in its sole discretion.” No connection to the wash-trading allegations is mentioned anywhere in the paperwork.
What This Means for Traders
Kalshi has said a replacement incentive structure is coming, built around more flexible rewards rather than straight volume tiers. For everyday users, that likely means less emphasis on raw trade count and more emphasis on genuinely useful behavior, like keeping tight quotes on illiquid markets.
For active traders who were leaning on volume rebates as part of their edge, the math changes starting October 13. Any strategy built around hitting volume thresholds for a payout needs a second look before that date.
Kalshi’s growth numbers make the stakes clear. The exchange reported $52.98 billion in monthly volume as of late September, an all-time high. Whether that volume is as organic as it looks is now a live question for regulators, journalists, and anyone deciding how much weight to put on Kalshi’s reported trading activity.
The Bigger Picture
None of this proves wash trading happened. Kalshi’s explanation, that fixed-size market-maker quotes naturally produce repeated trade sizes, is plausible on its own. The problem is that Kalshi’s public API doesn’t identify which accounts are on each side of a trade, so outside observers can’t independently check Kalshi’s claim that hundreds of distinct traders were involved rather than a smaller, coordinated group.
Ending the Volume Incentive Program early doesn’t resolve that uncertainty. It does remove one obvious incentive structure that critics pointed to as a possible driver of artificial volume, right as the CFTC’s own August advisory put every exchange on notice that this exact pattern was on its radar.
