69% — CA-40 Primary Winners
Leader: Young Kim at 69% · Polymarket 69% · 6 contracts · $120 volume · medium confidence
Updated 2026-05-29 23:53:36 UTC

Tracks the leading outcome in a winner-take-all prediction market set with 6 outcomes.

Why this matters:
CA-40 is a Southern California congressional district where the primary winner is expected to be Ken Calvert with 76% probability, ahead of Young Kim at 72%. This represents the market's assessment of who will receive the most votes in the Republican primary. The high probability reflects Calvert's incumbent status and established donor network, though the close runner-up pricing indicates genuine uncertainty about whether challengers could consolidate support. Primary participation rates, late-breaking endorsements, and turnout patterns in specific precincts will likely determine the outcome. The primary election will resolve this market directly on the election date, at which point vote totals will establish the winner.

Key factors:
- Ken Calvert is the incumbent representative, typically providing structural advantages in candidate recognition and campaign infrastructure
- Young Kim's 72¢ price indicates meaningful market uncertainty despite trailing by 4 cents, suggesting competitive dynamics in polling or fundraising data
- Combined probability of Esther Kim Varet (37¢) and Joe Kerr (39¢) exceeds either individual frontrunner, indicating fragmentation among non-incumbent candidates
- Zero trading volume on top contracts in the past 24 hours suggests limited new information or market activity, with positions potentially set ahead of the primary
- Lisa Ramirez's 4¢ price indicates minimal market confidence in a come-from-behind victory despite being a candidate on the ballot

Contracts:
- CA-40 Primary Winners: Young Kim — 69¢ Polymarket $0 (weight 0%)
- CA-40 Primary Winners: Ken Calvert — 63¢ Polymarket $120 (weight 100%)
- CA-40 Primary Winners: Esther Kim Varet — 59¢ Polymarket $0 (weight 0%)
- CA-40 Primary Winners: Joe Kerr — 27¢ Polymarket $0 (weight 0%)
- CA-40 Primary Winners: Nina Linh — 4¢ Polymarket $0 (weight 0%)
- CA-40 Primary Winners: Lisa Ramirez — 3¢ Polymarket $0 (weight 0%)

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## Methodology

SimpleFunctions aggregates live YES-side prices from Kalshi and Polymarket contracts bound to this question. For binary topics the headline is the liquidity-weighted mid-price (weight = log(1 + 24h volume) × freshness, where freshness is 1.0 if updated <24h, 0.7 if <7d, 0.4 otherwise). For multi-outcome (winner-take-all) topics the headline is the current leader's price — disjoint outcomes are never arithmetically averaged. Snapshots refresh every 5 minutes during market hours.

## SF Signal

- SF Index, regime, and 30d Brier calibration are computed separately and surfaced at https://simplefunctions.dev/admin/calibration.
- No SimpleFunctions index / regime / calibration signal is bound to this topic yet — the headline above is market-derived only.

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*Last verified: 2026-05-29T23:20:08.999Z*

By SimpleFunctions — https://simplefunctions.dev/

Cite as: "69% per prediction markets (SimpleFunctions, May 2026)"
Canonical: https://simplefunctions.dev/answer/ca40-primary-winners
Full data: https://simplefunctions.dev/api/public/query?q=CA-40%20Primary%20Winners
Provider: SimpleFunctions — https://simplefunctions.dev