Spike detail
Kalshi Seeded demo state
US tariff action on China before May? Ranked explanations, explicit uncertainty, related-market spillover, and an evidence summary that keeps external sources separate from internal runtime context.
Spike timestamp 17 April 2026 at 00:00 UTC
Move +18.2pp
Current price 58%
Evidence quality 5/6 dated
Venue Kalshi
Price path
Spike anchored at 17 April 2026 at 00:00 UTC with the latest seeded window.
6 points · UTC labels
Trace readiness
Evidence summary External evidence 5
Internal context 1
Weak evidence 1
Trust tiers 4
Internal context stays visible but separate. The trace route carries the full provenance chain for each cited source.
Assessment
Mispricing read underreaction Confidence 0.63
61%–69%
Tariff timing still looks slightly underpriced versus the best-dated evidence chain.
Spillover
Related markets Fed emergency cut before June?
−11.4pp Polymarket 23% 17 April 2026 at 00:08 UTC
Rates markets softened as growth-sensitive repricing followed the tariff narrative.
Ranked explanations
1 0.79
Policy briefing leak pointed to an imminent tariff package. Regulatory/Legal Analyst 3 cited items 1 supporting agents
The leak explains urgency, but the final scope of the package is still unclear.
Falsifier A White House denial or a materially delayed timeline would cut against the leak thesis.
2 0.53
Supply-chain lobbying pressure brought forward the market’s expected action window. Supply Chain Specialist 2 cited items 1 supporting agents
Lobbying explains momentum, not necessarily the exact trigger date.
Falsifier If no new supply-chain filing or committee action appears, this explanation loses force.