The excellence for readers monitoring prediction-market development is what these {dollars} measure. Notional quantity values contracts at their full payout fairly than the worth paid by the combo purchaser. A low-priced contract can subsequently add as a lot notional turnover as a higher-priced one, with out an equal quantity of purchaser spending. Contract turnover additionally doesn’t measure new customers.
What Combo Quantity Measures
Kalshi’s documentation describes combos as customized combos of occasions traded in a single place. Every mixture is its personal market, with costs obtained by way of requests for quotes from different individuals and a most payout of $1 per contract.
Kalshi’s volume-counting discover says a pair of Sure and No positions counts as one contract, fairly than two. The reported turnover is thus a measure of contracts traded, not two separate counts for the opposing sides.
The payout construction additionally concentrates danger for the combo purchaser. Below Kalshi’s guidelines, a mix pays $1 if all its underlying positions settle at $1. If any place settles at zero, your complete combo pays zero; partial settlements can produce a payout between these quantities.

