SimpleFunctions

Experience a population decrease of at least 10% between 2025 and 2035

Between 2025 and 2035? is priced at 25¢ on Kalshi. Current book: 18¢ bid, 25¢ ask, 7¢ spread. This page tracks a standalone prediction-market contract.

Price history

25¢ current

+10¢
20¢
Jun 1, 2026Jun 27, 2026

Contract brief

If any U.S. state experiences a population decrease of at least 10% between 2025 and 2035, then the market resolves to Yes.

Outcome

Between 2025 and 2035?

Rank

Standalone

Leader

Range

Family volume

$0

Identifier

KXPOPCHANGESTATE10-35

Jun 28, 2026, 10:08 AM UTC · 30m ago

Implied probability

25¢
Latest venue quote
Jun 28, 2026, 10:08 AM UTC · 30m ago

Bid

18¢

Ask

25¢

Spread

Reported volume

$3K

Family rank

Standalone

Standalone contract

Closes

Dec 30, 2036

Family volume

$0

Orderbook snapshot

18 / 25¢

Kalshi
7¢ spread
BidSize
18¢5
17¢31
16¢1.0K
15¢243
13¢210
AskSize
25¢1.0K
56¢200
69¢1.3K
70¢400
81¢20

Contract terms

What resolves this market.

YES condition

If any U.S. state experiences a population decrease of at least 10% between 2025 and 2035, then the market resolves to Yes.

Venue

Kalshi

Closes

Dec 30, 2036

Identifier

KXPOPCHANGESTATE10-35

SF Signal
SF Index
21.66
Regime
neutral

Event family

KXPOPCHANGESTATE10-35.

The same race as a probability stack: rank, volume, and where this contract sits against the other outcomes.

Total volume

$0

Outcomes

1

Highest price

Between 2025 and 2035? 18¢

Current share

Indicators

Yield, cliff risk, volatility, and regime.

Regime

neutral

Score

0.5

Full indicator table

43.3%
2.1%
Adj IY
22%
5

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SimpleFunctions context

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.