SimpleFunctions
Winner-take-all answer·13 source contracts·Kalshi 13·refreshed just now·Closes Mar 31, 2029 · 951d

Will government spending decrease by 1000 before 2026

Leader sits at 9% across 13 bound outcomes, runner-up at 9%. This is a winner-take-all market — the headline is the leader’s price, not an arithmetic mean.

Leader probability

9%

At least 50 billion

runner-up 9¢leader 9¢

Outcomes

13

winner-take-all

Runner-up

At least 100 billion

Spread

0pp

contested

24h volume

$106

thin orderbook

Closes

Mar 31, 2029

951 days

Venue

Kalshi

13 bound

30-day trend

0%50%100%-30d-3w-2w-1wtodayAt least 50 billion: 4% (12 days, 11 points)At least 50 billion: 4% on 2026-08-20At least 100 billion: 6% (12 days, 8 points)At least 100 billion: 6% on 2026-08-22At least 250 billion: 7% (12 days, 3 points)At least 250 billion: 7% on 2026-08-13
At least 50 billion4¢At least 100 billion6¢At least 250 billion7¢
Top 3 candidates by current price · 12d

Bracket family

How the bracket ladder is priced.

Each row is one outcome on the venue. Sorted by 24h volume — the heaviest book is at the top.

Cluster 1

Will government spending decrease

13 contracts$106

Analysis

This market asks whether U.S. federal government spending will fall by $1 trillion in a single fiscal year before the end of 2026—a reduction representing roughly 25% of current annual outlays. The 7% probability reflects skepticism that such a large spending contraction could occur within this timeframe. Current fiscal trajectories, mandatory spending commitments, and political constraints make major cuts unlikely in the near term. The primary driver moving this probability would be either a severe economic shock forcing emergency fiscal consolidation or a major political shift enabling unprecedented spending reductions. Fiscal year 2026 budget resolutions and appropriations decisions throughout late 2025 and early 2026 represent the key decision points that would clarify feasibility of this outcome. Market pricing across different contraction thresholds (50B, 250B, 750B, 1T) shows declining probability as cuts grow larger, consistent with diminishing likelihood of extreme fiscal adjustment.

  • Mandatory spending (Social Security, Medicare, Medicaid, interest) comprises roughly 60-70% of the budget and cannot be cut without legislative action
  • A $1 trillion reduction would require either eliminating entire departments or cutting across-the-board spending by approximately 25%, neither of which has precedent in U.S. fiscal history
  • FY2026 runs October 2025 through September 2026; major budget and appropriations bills must pass by fall 2025 to establish spending parameters
  • The market structure shows traders pricing a $250B cut at 7% but a $1T cut at only 3%, indicating incremental skepticism as the threshold increases
  • Economic conditions, debt ceiling negotiations, and election cycle dynamics in 2025-2026 would need to align to enable this magnitude of contraction

What moved the line

  • Aug 23At least 200 billion5pp16¢ · Kalshi
  • Aug 20At least 100 billion5pp49¢ · Kalshi
  • Aug 22At least 100 billion3pp96¢ · Kalshi
  • Aug 17At least 50 billion3pp58¢ · Kalshi
  • Aug 20At least 750 billion3pp63¢ · Kalshi

Recently closed in general

These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.

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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.

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