Spread, in depth

Every number on Kalshi's active Bitcoin 15-minute market: the best buy and sell price on each side, the gap between them, and what it means for getting in and out fairly. Live data refreshes every two seconds while this page is open.

CURRENT BOOK

calculating

WINDOW OPENS

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WINDOW CLOSES

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TARGET (STRIKE)

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What each number means

Best buy (ask) — the lowest price a seller is currently offering on that side. Buying a contract costs the ask right now, and each contract costs that many cents.

Best sell (bid) — the highest price a buyer is currently offering. If you hold a contract and sell immediately, this is roughly what you get.

Spread — the gap between those two. It is your round-trip cost: buy at the ask, sell at the bid, and the spread is what you pay for that instant trade. Kalshi contracts settle at $1 or $0, so prices are quoted in cents from 0¢ to 100¢.

Midpoint — halfway between bid and ask. Traders read it as the market's fair current price for that side, and the homepage's crowd-odds display uses this midpoint.

Spread quality — Tight (2¢ or less) usually means you can get in and out near the shown odds. Normal (over 2¢ up to 5¢) is typical for active windows. Wide (over 5¢) means entering or exiting costs noticeably more, especially in the last minutes when market makers pull back.

A quick example

Say the UP side shows best buy 62¢ and best sell 60¢. The spread is 2¢. If you buy one contract for 62¢ and the market settles UP, it pays $1 — you gain 38¢ minus the spread you paid getting in. If you buy at 62¢ and immediately change your mind, selling back at 60¢ returns 60¢, so the 2¢ spread was the cost of that round trip. The narrower the spread, the closer your real entry and exit prices sit to the odds you see on screen.

How this relates to the indicators

It doesn't move them. The Early Entry Compass reads Bitcoin direction, with Kalshi odds as a room-to-run check — never on the spread. The spread is about execution: how fairly you can get filled, not where Bitcoin is heading. A wide spread is a reason to be careful with entries and exits, not a reason to change a prediction.

Estimates, not guarantees. Real-money trading can result in loss. Not affiliated with Kalshi.

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