One of the biggest operators of prediction markets, Kalshi, claims to be moving toward round-the-clock trading on its event futures contracts.  Almost, though.

On Thursday, the new trade hours take effect.  On Monday, a Kalshi employee announced the news on the company's Discord channel.  With the exception of a two-hour window early on Thursday mornings, clients will be able to trade Kalshi's derivatives all day, every day.

"The night owls have been asking… when can we trade overnight? We are super excited to announce our brand new trading hours!,” according to the post. “Starting this Thursday (August 7th, 2025) at 5am ET, Kalshi will be open 24/7 for trading with the exception of routine maintenance. Maintenance will occur weekly from 3am – 5am ET on Thursday mornings.”

Kalshi prohibited trading between 3 and 8 AM Eastern time prior to the update.  However, compared to more conventional markets like stocks and fixed income, its trading hours were far longer.  US stock exchanges are open from 9:30 AM to 4 PM Eastern time.

Might Be a Wise Move  by Kalshi

Kalshi self-certified the change to longer trading hours, and since it submitted relevant paperwork to its federal regulator, the Commodities Futures Trading Commission (CFTC), last month, the change is not shocking.

“This filing is to provide notice that the schedule of maintenance windows announced on the website will be changed, such that maintenance windows will occur, and trading will not be available on Kalshi, during the following times: On a regular basis, from the hours of 3:00 AM ET to 5:00 AM ET on Thursdays,” according to the document.

Aside from the lack of surprise, Kalshi's decision to extend trading hours to almost 24 hours a day may be wise, especially in terms of attracting more business from younger retail traders, who are a very tech-savvy portion of the investing public and have grown up with constant access to cryptocurrency exchanges.

 One of Kalshi's partners is Robinhood Markets, a popular trading and investing app among younger market players, many of whom are already doing business with Kalshi.

Kalshi Handling Court Cases

Due to the operator's growing presence in sports event contracts, which some claim equal to sports betting and for which the prediction markets company lacks regulatory authority in the state, Kalshi is still involved in a number of state-level legal disputes.

Kalshi's plea for a temporary injunction was denied by Maryland District Court Judge Adam Abelson last Friday, citing the company's heavy burden of establishing its field preemption allegations.  Abelson's decision, according to some legal experts, may lead to a confrontation between Kalshi and many states in the US Supreme Court.