The Life of a Kalshi Market, From Listing to Settlement
A market is not one thing over its life. Liquidity, spreads and what the price means all change between listing day and the final hour.
Traders talk about a market as if it were a fixed object. It is not. A contract listed three months before its event and the same contract ninety minutes before settlement are different products that happen to share a ticker.
Phase one: listing and discovery
A newly listed market usually has almost nothing in it. A few wide quotes, low volume, a price that moves several cents on small orders.
The price at this stage is barely a forecast. It is one or two people's opinion with nobody yet willing to argue. Reading a freshly listed market as "what the market thinks" overstates it considerably. When a price move means something is the test to apply.
What the phase is good for: if you have a genuine view and the patience to rest orders, this is when the spread is widest and the compensation for providing liquidity is largest. It is also when you are most likely to be the person who is wrong.
Phase two: the long middle
Most of a market's life. Liquidity accumulates slowly. The price drifts on news and stays put otherwise.
Two things characterise this phase. First, staleness: long gaps between trades mean the last trade price can be badly out of date even while the quotes are live. Mid price versus last trade matters most here. Second, the time cost: capital committed now earns nothing until settlement, and for a contract months out that is a genuine drag on any strategy. Capital lockup quantifies it.
This is also the phase where cross-venue gaps look largest and are least reliable, because a gap between two thinly traded quotes is mostly noise. Persistent versus temporary gaps is about separating the two.
Phase three: the approach
Days or hours out, depending on the category. Volume rises sharply, the spread narrows, and the price starts responding to information quickly.
This is when the market is most worth reading. Attention is concentrated, participants who care about the outcome are present, and the price is a genuine aggregate. If you are going to quote a market probability anywhere, quote it from this phase.
It is also when cross-venue comparison is most meaningful, because both sides are liquid at the same time. A gap that survives into this phase is much more interesting than one that appears when one venue has not traded since Tuesday.
Phase four: the endgame
The final stretch. The price converges toward zero or one hundred as the outcome becomes clear. Spreads can stay surprisingly wide at the extremes because the tick size is large relative to the price.
Two traps live here. One: a market at 97 is not free money at a 3% return, because the 3% of the time it is wrong costs you everything, and that arithmetic is not in your favour as often as it feels. Two: the settlement source may be slower than the news. The world can know the answer while the contract has not yet resolved, and the price will sit near but not at the extreme for that whole period.
Settlement
The source publishes, the exchange applies the rule, positions pay out at one dollar or zero. What settlement does to a position you still hold covers the mechanics and the small number of ways it can go sideways.
Next
Kalshi's public API is where all of this becomes data you can work with.
Educational content only. Nothing here is financial advice, a solicitation, or an offer to trade. Prediction markets can move against you and a position can lose its entire value. Where this guide describes a difference between venues it describes a theoretical cross-market edge in observed prices, which is not a profit: fees, spreads, capital lockup, transfer time and differing settlement rules all come out of it first.
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