Kalshi's 15-minute crypto markets, explained

Every 15 minutes, all day, Kalshi opens a new yes/no market on whether Bitcoin (and six other coins) will close above where it started. Here is exactly how those markets work, from the strike to settlement.

What the market is

Each 15-minute window is one question: will the coin's price at the end of the window be above the strike? The strike is set at the start of the window from the coin's live price. If the close is above it, the "Yes" (Up) side settles at $1 and "No" (Down) settles at $0. Below, the reverse. There is no partial credit and no tie: 51¢ and 99¢ both settle to a dollar if the answer is yes.

New windows open every quarter hour, 24 hours a day, weekends included: 96 windows a day per coin. Kalshi runs them on BTC, ETH, SOL, XRP, DOGE, BNB and HYPE.

How the price works

Contracts are priced between 1¢ and 99¢. The price is the market's live estimate of the probability. A Yes contract at 40¢ means the crowd thinks there is roughly a 40% chance the coin closes above the strike. If you think it is more like 60%, you buy at 40¢ and, if you are right, collect $1.

Fees

Kalshi charges a fee per contract that scales with the price, peaking around the middle. On a 50¢ contract it is roughly 1.75¢ per contract per side. That sounds small until you multiply it by 50 trades a day; it is the difference between a good day and a flat one, and it is why disciplined traders (and bots) count the fee before entering.

Why the last two minutes are different

With a minute left, the contract is basically a bet on where the coin is right now. Every small tick moves the price a lot: 60¢ becomes 85¢ becomes 40¢ in seconds. People who click in that minute usually pay the top of the move. Earlier in the window the price still has room to be wrong in your favour, which is where most careful entries happen.

Settlement

At the close, Kalshi checks the reference price against the strike and pays out. Positions settle automatically; you do not need to sell. You can sell early, any time there is a buyer at a price you like, which is how "cash out" works: if your Yes at 55¢ is trading at 90¢ with time left, you can take 90¢ now instead of waiting for $1 or $0.

Trading it by hand vs. with a bot

Most people trade a handful of the 96 windows a day, usually the ones during their waking hours, and pay the most attention in the frantic final minutes. A bot watches every window, on every coin, all night, and can be told exactly which part of the window it is allowed to enter and what it may pay. That is the whole reason DirectionalBot exists: it runs on your own Kalshi account through an API key, with caps you set, and it sits out more windows than it takes.