KALSHI Mechanics
Event Ticker
A code that groups mutually exclusive Kalshi markets under one event (e.g., CPIYY-26MAR) and links its child YES/NO contracts.
Detailed explanation
An event ticker is a code that binds related markets into a single event group on Kalshi. Under one event ticker, you’ll typically find multiple child markets that resolve on the same underlying outcome, but with different resolutions or thresholds (for example, a CPI release bracket with several YES/NO variants). The sum of the best-ask prices for the child markets is constrained by the platform so that fair value across the set remains anchored near $1.00. This grouping helps traders analyze and exploit spreads within a single event window without mixing unrelated events.
In practice, the event ticker framework supports the structure of mutually exclusive outcomes, such as different bracket levels or alternative resolutions, ensuring each child YES contract and its corresponding NO contract are part of a coherent event family. Kalshi enforces the rule that the combined price of related legs reflects the underlying economics of the event, with settlement determined by the defined resolution rule and source, not by external oracles.
Worked example
Example: An event ticker CPIYY-26MAR has two child contracts: CPIYY-26MAR-T2.5 YES at 42¢ and CPIYY-26MAR-T2.5 NO at 56¢. The sum is 98¢, leaving a 2¢ edge if you buy both legs, before fees.
FAQ
- What is an event ticker used for?
- It bundles related markets under a single event so traders can assess and trade the complete set of child contracts that share the same resolution source.
- How do prices relate within an event ticker?
- Child YES/NO legs have prices that sum toward $1.00 in fair value; arbitrage opportunities arise when the best-ask prices for the set create a guaranteed edge near $1.00.
See Event Ticker on a live Kalshi market
KalshiArb scans every open Kalshi market for arbitrage edges where YES + NO < $1.00. Plug in your Kalshi API key and start receiving alerts in under 5 minutes.
Related terms
- Yes ContractA YES contract is the binary Kalshi market side that pays $1 if the event resolves true, $0 otherwise.
- No ContractThe NO contract is the opposite side of a binary Kalshi market, paying $1 if the event does not occur.
- Yes AskThe ASK price to buy YES on a Kalshi market; the YES side’s best offer.
- No AskThe NO ask is the lowest NO price offered to sell NO contracts.
- Best BidThe highest price investors are willing to pay for a YES or NO side of a Kalshi market.