SimpleFunctions

Number of U.S. Senate seats won by Democratic Party candidates at least 15 in the 2026 U.S. Senate elections

At least 15 is priced at 87¢ on Kalshi. Current book: 84¢ bid, 88¢ ask, 4¢ spread. This outcome ranks #6 of 13 inside Will the number of U.S. Senate seats won by Democratic Party candidates be at least.

Price history

87¢ current

85¢90¢
Sep 23, 2026Sep 23, 2026

Contract brief

If the number of U.S. Senate seats won by Democratic Party candidates is at least 15 in the 2026 U.S. Senate elections, then the market resolves to Yes.

Outcome

At least 15

Rank

#6 of 13

Leader

At least 12 95¢

Range

3¢-95¢

Family volume

$16K

Identifier

KXDSENATEWON-26NOV03-AL15

Sep 23, 2026, 2:08 PM UTC · 21m ago

Implied probability

87¢
Latest venue quote
Sep 23, 2026, 2:08 PM UTC · 21m ago

Bid

84¢

Ask

88¢

Spread

24h volume

$3K

Family rank

#6 of 13

13 outcomes · Will the number of U.S. Senate seats won by Democratic Party candidates be at least

Closes

Jan 3, 2027

Family volume

$16K

Orderbook snapshot

84 / 88¢

Kalshi
4¢ spread
BidSize
84¢39
83¢808
80¢550
79¢3.1K
77¢50
AskSize
88¢3.2K
93¢285
94¢333
95¢500
96¢500

Contract terms

What resolves this market.

YES condition

If the number of U.S. Senate seats won by Democratic Party candidates is at least 15 in the 2026 U.S. Senate elections, then the market resolves to Yes.

Venue

Kalshi

Closes

Jan 3, 2027

Identifier

KXDSENATEWON-26NOV03-AL15

SF Signal
SF Index
939.40
Regime
neutral

Indicators

Yield, cliff risk, volatility, and regime.

IY (Yes)

68.2%

IY (No)

1878.8%

Adj IY

939%

CRI

5

Overround

6.9%

Regime

neutral

Score

0.5

Full indicator table

68.2%
1878.8%
Adj IY
939%
5
Overround
6.9%

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Index, screen, query, and monitor.

Open index

How we compute these odds

SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.

For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.

Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.