TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 10, 8:19 PM EST
Kalshi
Candidates compete in the 2026 California congressional primary, with the margin of victory between the leading and second-place finishers determining the outcome across multiple predefined ranges.
The margin of victory is calculated by comparing each candidate's vote performance to the second-place finisher if the candidate finishes first, or to the first-place finisher if the candidate finishes second or lower. For percentage-based margins, the candidate's vote percentage is subtracted from the runner-up's percentage (if winning) or the leader's percentage is subtracted from the candidate's (if losing). For raw vote counts, the same logic applies using total votes received. If a candidate runs under multiple party affiliations or appears multiple times, all votes are combined. A positive margin indicates a win, negative indicates a loss, and zero indicates a tie for first. In uncontested races where a candidate is the only option, the margin is 100 percentage points. No rounding is applied; for example, 5.99999% falls in the 5-10% range while exactly 6% falls in the 10-15% range. The market resolves to Yes if the candidate's calculated margin falls within one of the specified ranges: Connie Chan 0-100%, or Scott Wiener 0-5%, 5-10%, 10-15%, 15-20%, 20-25%, 25-30%, or 30-100%.
Prediction market odds on Kalshi often diverge from traditional polling averages because markets incorporate real-money incentives and continuous price discovery. While polls capture voter sentiment at a single point in time, prediction markets aggregate ongoing trader beliefs about the actual margin outcome. Markets may price in late-breaking campaign developments, fundraising momentum, or endorsements faster than polls update. Comparing Kalshi odds to recent CA-11 primary polling can reveal whether traders expect a tighter or wider margin than surveys suggest, highlighting areas of market conviction or uncertainty.
On Kalshi, CA-11 primary margin of victory is priced as a set of binary outcome contracts, each representing a specific margin range or threshold. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders buy or sell shares at prices between 0 and 100 cents, where the price reflects the implied probability of that margin outcome occurring. As new information emerges—campaign events, debate performances, or voter shifts—traders adjust their positions, moving prices up or down. The contract that resolves to 100 cents at settlement reflects the actual primary margin, while all other contracts expire worthless.
The CA-11 primary margin of victory market resolves on Jun 2, 2027, following the official California primary election. The outcome is determined by the final certified margin between the top two finishers in the CA-11 Democratic primary. Resolution depends on official vote tallies reported by California election authorities. Once results are certified and the margin is confirmed, the contract corresponding to the actual margin range resolves to 100 cents, while all other margin contracts expire at zero.
Key catalysts for CA-11 primary margin movement include candidate debate performances, major endorsements from local or state figures, fundraising announcements, and media coverage shifts. Voter registration trends and early voting data releases can signal changing momentum. Campaign spending surges or candidate gaffes may reshape expectations about the final margin. Polling releases specific to CA-11 often trigger immediate market repricing. Turnout models and demographic shifts in the district also influence trader estimates of whether the race will be competitive or dominated by a frontrunner, directly affecting margin predictions.