S&P 500 (SPX) Up or Down on June 29?
A prediction market on Polymarket. Up is trading at 100.0¢, implying a 100% probability. 24-hour volume is $185.4K. Resolves Jun 29, 2026.
- 24-hour volume
- $185.4K
- Total volume
- $191.1K
- Liquidity
- $70.9K
- Resolves
- Jun 29, 2026
- Event
- S&P 500 (SPX) Up or Down on June 29?
- Hosted on
- Polymarket
- Resolution source
- link
About this market
This market will resolve to "Up" if the official S&P 500 Index closing price for S&P 500 (SPX) on Monday, June 29, 2026 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 closing price for S&P 500 (SPX) on Monday, June 29, 2026 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 specified closing 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 closing price published by S&P 500 Index for that shortened session will still be used for resolution. If either of the relevant days have 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 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
Frequently asked questions
What is this prediction market about?
This is a Polymarket prediction market asking: "S&P 500 (SPX) Up or Down on June 29?". Traders buy "Up" tokens if they think the event will occur, or "Down" tokens if they think it will not. Each token's price (in cents on the dollar) represents the market's consensus probability of that outcome.
What is the current probability?
The market currently prices "Up" at 100.0¢, which implies a 100% probability. "Down" trades at 0.1¢. The probability updates in real time as traders buy and sell.
When does this market resolve?
This market is scheduled to resolve on Jun 29, 2026. After resolution, the winning side's tokens redeem at $1 each (in USDC) and the losing side at $0.
How is the outcome decided?
Resolution is determined by the source specified by the market (https://www.wsj.com/market-data/stocks). Polymarket uses UMA's optimistic oracle to finalize outcomes — a proposed result is submitted, and anyone may dispute it within a challenge window before settlement.
What does buying YES or NO actually mean?
"Up" and "Down" are outcome tokens on the Polygon blockchain. Each one pays out $1 in USDC if its outcome resolves true, otherwise $0. If you buy "Up" at 100.0¢ and the outcome resolves "Up", you receive $1 per token; if it resolves "Down", your "Up" tokens are worth nothing.
How much trading activity is there?
Over the last 24 hours, $185.4K has been traded on this market. Total volume since the market opened is $191.1K. Current order-book liquidity is $70.9K — the amount that can be filled at or near the mid-price without significant slippage.
Where is this market hosted?
On Polymarket, the largest prediction-market platform in the world. Polymarket runs on the Polygon blockchain and uses USDC as collateral.
Is Polymarket available everywhere?
No. Polymarket is geographically restricted. Trading is blocked in some jurisdictions, including the United States. Polymarket detects your location and prevents deposits and trades where the service is unavailable. Always verify access from your country before depositing funds.
Can I see the live order book and top holders?
Yes. Spreadiction surfaces the live CLOB order book, top holders by USD value, recent whale trades and derived analytics for every active Polymarket market. Use the navigation: Markets, Whales, Signals, Alpha, Scanner.
Is anything on this page investment advice?
No. Spreadiction is an analytics tool. Nothing on this page is investment, financial, legal or tax advice. Prediction markets carry substantial risk of loss. See the full disclaimer for details.
Trade this market
Trading happens on Polymarket. You will need a Polygon wallet with USDC. Polymarket is geographically restricted — verify access from your jurisdiction before depositing.
Open on Polymarket →