Kalshi analytics: prices, volume and open interest by meeting

Where these figures come from

Kalshi publishes its own market data. Vultax reads it, records when it read it, and republishes it beside the matched Polymarket contract without restating or smoothing it. When a figure is missing from the source it stays missing here: a blank means the venue did not report it, never that the value was zero.

The three contracts on a meeting — an increase, no change, a decrease — are separate markets with their own books and their own spreads. They are read independently and are not normalised to sum to a hundred. If they do not add up, that gap is information about the spreads, and flattening it would delete the only interesting thing in the row.

Volume and open interest answer different questions

Traded volume in the last day tells you how much attention a contract is getting now. Open interest tells you how much money is already committed to an answer. A contract can have large open interest and almost no recent volume, which usually means the market has made up its mind and is waiting for the event; it can have heavy volume and low open interest, which usually means people are trading against each other rather than accumulating a position.

Both are reported by the venue at the meeting level rather than per contract row, so the same volume figure appears beside each of the three contracts for a meeting. That is how the exchange publishes it, and inventing a split would be worse than repeating the number.

What Kalshi coverage means here, precisely

Vultax's Kalshi coverage is the data published on this website and in the public packs behind it: prices, volume, open interest and hourly history for the tracked meetings, plus the cross-venue comparison built on them. The app's own screens — the prediction desk, trader analytics, the activity tape — are built on Polymarket, and they do not currently carry a Kalshi column.

Kalshi is a US-regulated exchange and sets its own eligibility rules. Whether a contract is available to you is a matter for the venue, not for Vultax, and nothing here should be read as making a market available to anyone.

Reading a rate path rather than a single price

Three meetings, three contracts each, is a shape rather than a list. The near meeting is usually priced with conviction and traded heavily; the second carries most of the genuine uncertainty; the third is often quoted by very few participants and moves on almost nothing. Reading them together tells you where the market has an opinion and where it merely has a quote.

The volume and open-interest columns are what let you tell those apart. A far-dated contract with open interest in the millions is a market with real money committed to a view. The same contract with four figures of turnover is two people disagreeing politely, and a five-point move in it means nothing at all.

The comparison with Polymarket in the last column adds a second reading. Where the two venues agree closely on the near meeting and diverge on the far one, that divergence is usually about who is trading rather than about the economics — thin books drift apart because nobody is being paid to keep them together.