S&P 500 (SPX) Opens Up or Down on May 4?
Probability
44¢
1h
+0.0pp
24h
+5.5pp
24h Vol
$346.33
Liquidity
$832.69
Resolution & Risk
HIGH risk- End date
- May 4, 2026
- UMA status
- n/a
- Resolution source
- Market type
- Binary
- Market expires May 4, 2026 — dispute window active.
- Wide spread (11.0¢) — liquidity risk on entry/exit.
Probability (last 7 days)
+0.0pp 7dWhy did it move?
Structured · 3 factors- 01Price move
Up 6pp over 24h
Now 44¢; flat in the last hour.
- 02Active signal
Resolution-risk signal firing
Expires in 47h. Spread is extremely wide.
- 03Spread cost
Wide spread — 11.0¢
Bid-ask spread is wide enough that intraday moves overstate any tradeable edge. Most of the headline pp move would be eaten by spread on a market order.
What to track next
- Verify the resolution source on this page — exchange feed, official release, news consensus — before treating any move as new information.
- Set an alert for resolution status changes — expiry is in 47 hours.
Verification actions only — never trade recommendations.
Each factor is grounded in a single named metric you can verify on this page — probability, volume, liquidity, signal, resolution state. No predictions, no prose hallucinations.
Resolution & Risk
HIGH risk- End date
- May 4, 2026
- UMA status
- n/a
- Resolution source
- Market type
- Binary
- Market expires May 4, 2026 — dispute window active.
- Wide spread (11.0¢) — liquidity risk on entry/exit.
Timeline
critical · price · trade flowCritical
- 0s agoResolveHIGH
Market resolves in 46.7h
- 21:15SignalMEDIUM
Resolution risk
Expires in 47h. Spread is extremely wide.
Price movement
+5.5pp over the last 24h, now 44¢.
Active signals
Recent Trades
No recent trades visible from the Data API for this market. That usually means liquidity is thin or this market is between event windows.
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Market Description
This market will resolve to "Up" if the official S&P 500 Index open price for S&P 500 (SPX) on May 4 is higher than the official S&P 500 Index closing price for SPX on the most recent prior trading day. This market will resolve to "Down" if the official S&P 500 Index open price for S&P 500 (SPX) on May 4 is lower than the official S&P 500 Index closing price for SPX on the most recent prior trading day. E.g., ordinarily, a market on Monday would refer to the previous Friday for its most recent closing price, unless that Friday were a market holiday, in which case it would refer to Thursday, or the next most recent trading day. If the two prices are exactly equal, this market will resolve 50-50. Note that all figures will be rounded to the nearest cent using standard rounding. If SPX does not trade at all during the regular session, the market will resolve 50-50. If either of the relevant days are shortened (for example, due to a market holiday schedule), the official open/close price published by S&P 500 Index for that shortened session will still be used for resolution. If the previous trading day has no official closing price (for example, due to a trading halt into the market close, system issue, delisting, or other disruption), the market will use the last valid on-exchange trade price of the regular session as the effective closing price. The resolution source for this market is the Wall Street Journal, specifically the Open/Close values published by the WSJ under "Historical Prices". US: https://www.wsj.com/market-data/stocks EMEA: https://www.wsj.com/market-data/stocks/emea ASIA: https://www.wsj.com/market-data/stocks/asia
Alerts
In-app banners fire as soon as a rule is satisfied. Email, Telegram, and Discord delivery are coming soon — every existing rule will keep working without changes.