:: Current incumbent: Jim Costa
ActiveYes
83.50%
No
16.50%
- Market Ticker
- HOUSECA21-26-D
- Last Price
- 84¢ (84.00%)
- Yes Bid / Ask
- 83¢ / 84¢
- No Bid / Ask
- 16¢ / 17¢
- Open Interest
- 1.42K
- Volume (24h)
- 0
KalshiActive
Which party will win the House race for CA-21?
- Event Ticker
- HOUSECA21-26
- Category
- Politics
- 24h Volume
- 0
- Expiration
- Nov 3, 2027, 3:00 PM
Probability History
Source: Kalshi candlesticks via OrangeRock proxy
- :: Current incumbent: Jim Costa
Latest: 0.00%
Market Overview
Markets are sorted by active status and volume. History is derived from Kalshi candlestick data per market ticker, aligned to a 60-minute interval.
Markets
Will a Republican win the House race for CA-21?
ActiveYes
15.50%
No
84.50%
- Market Ticker
- HOUSECA21-26-R
- Last Price
- 16¢ (16.00%)
- Yes Bid / Ask
- 14¢ / 17¢
- No Bid / Ask
- 83¢ / 86¢
- Open Interest
- 516
- Volume (24h)
- 0
Rules
If the House member sworn in for CA-21 for the term beginning in 2027 is a member of the Republican Party, then the market resolves to Yes.