S&P 500 (SPX) Opens Up or Down on May 13?
2 signals across 1 market · $3,468 tracked · resolves May 13, 2026
This event tracks Polymarket odds on whether the S&P 500 Index (SPX) opens higher or lower on May 13 compared with its previous official close. PolySpotter is monitoring the market for smart money activity, including a recent signal from a serial macro bettor, to help traders see how informed capital is positioning before the open.
Markets (1)
Top trades across all markets
- Serial macro bettor
Serial cross-market trader with 161 resolved bets and positive lifetime P&L is buying SPX Up at 83% in a relatively small daily market.
$1,693Wallet win rate: 73%Score: 4.0 - 73% serial macro bettor
Serial cross-market bettor with a strong 161-market record is buying Up on the SPX open market, though the entry is on a heavy favorite.
$1,775Wallet win rate: 73%Score: 4.0
Top wallets in this event
- 0x9da0e7…523c$3,468 · 1 market · 2 alerts · 73% wins
FAQs
What are the odds the S&P 500 opens up or down on May 13?
The live Polymarket price reflects the market-implied odds that SPX opens above or below its most recent prior closing price. On PolySpotter, you can track those odds alongside smart money alerts for this event.
What does this SPX prediction market resolve on?
The market resolves based on the official S&P 500 Index open price on May 13 versus the official S&P 500 Index close from the most recent prior trading day. If the open is higher, it resolves Up; if lower, it resolves Down.
Is smart money betting on the S&P 500 May 13 open?
PolySpotter has tracked $1,693 in smart money activity across this event, including a recent alert tied to a serial macro bettor. These signals can highlight where experienced or repeat market participants are placing capital.
Why do traders watch SPX open prediction markets?
SPX open markets give a quick read on overnight sentiment, macro news, futures movement, and trader expectations heading into the cash-market open. They can be especially useful around inflation data, Fed commentary, earnings, or major geopolitical headlines.
When does the S&P 500 May 13 open market settle?
This event is scheduled to resolve after the official SPX open data for May 13 is known, with the listed resolution deadline of May 13, 2026 at 20:00 UTC.