CA-21 primary: Who will advance?
Price history — Jim Costa
Last 7 days of market YES price (blue) with the fair-price range (orange).
━ market YES▬ fair range
Market price
98¢
97¢
0¢
0¢
0¢
0¢
Kalshi • Volume: 17.8K contracts • Updated 4h agoCloses: 2027-11-03
Kalshi · Elections
OU's Pick
YES · Jim Costa
at 98¢
Price gap
Kalshi98¢
→OU's fair95¢
−3¢ overpriced · pays 1.0×
Confidence
Moderate
Incumbent Jim Costa is running for reelection in a nonpartisan primary that took place on June 2 2026 and he typically secures a top two spot in this district.
Not financial advice. For informational purposes only. Prediction markets involve risk of loss. AI may contain errors.