S&P 500 (SPX) Up or Down on August 19?

Closed View on Polymarket ↗ (opens in a new tab)

Current Probability

100.0%

24h Change

+44.5 pp

Signal Score

61/100

Data Confidence

Medium (60)

24h probability rose 44.5pp

Market data

Updated 35 days ago

Last radar sync

2026-08-19 22:28 UTC

Why This Signal Matters

Supporting facts beyond the headline signal reason.

  • Volume baseline unavailable or history insufficient
  • Liquidity depth $37,460
  • Medium data confidence (60)

Probability History

Stored CLOB and sync snapshots with a compact read of recent movement.

No samples yet

Not enough history to chart yet (1d of stored history, 0 point s). Charts fill in after sync backfills CLOB history.

Browse other markets

Current

100.0%

24h Change

+44.5 pp

7d Change

Insufficient 7d price history

Coverage

1d of stored history

0 stored snapshots

Market Snapshot

Incremental context not covered in the hero summary.

1h Change

Unchanged

7d Change

Insufficient 7d price history

24h Volume

$108.2K

Volume vs Baseline

Baseline unavailable

Liquidity

$37.5K

Market Significance

High (78)

Market Status

Closed

End Date

Aug 19, 2026

Attention Score

47

Signal Quality Breakdown

Components behind the hero Signal Score of 61/100.

Probability Momentum 100
Volume Activity 0
Liquidity Quality 87
Persistence 20
Data Confidence Medium (60)

Next Steps

Keep exploring radar picks or open the full market catalog.