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| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| Yes | 100% | +23 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 184d | elysiian | S&P 500 (SPX) Opens Up or Down on April 22? | SellUp>99¢ | $6,103 | −$6 −0.1% | — |
| 184d | silelis | S&P 500 (SPX) Opens Up or Down on April 22? | SellUp>99¢ | $1,389 | −$1 −0.1% | — |
| 184d | Yanncll | S&P 500 (SPX) Opens Up or Down on April 22? | SellUp>99¢ | $1,039 | −$1 −0.1% | — |
| 184d |  Shakeshilly | S&P 500 (SPX) Opens Up or Down on April 22? | SellUp>99¢ | $2,026 | −$2 −0.1% | — |
| 184d | twerk4hv | S&P 500 (SPX) Opens Up or Down on April 22? | SellUp>99¢ | $1,016 | −$1 −0.1% | — |
| 184d |  olegs | S&P 500 (SPX) Opens Up or Down on April 22? | BuyUp>99¢ | $11,759 | +$12 +0.1% | 4 |
| 184d | xenonliu | S&P 500 (SPX) Opens Up or Down on April 22? | BuyUp>99¢ | $5,593 | +$11 +0.2% | 4 |
| 184d |  VdeVolsa | S&P 500 (SPX) Opens Up or Down on April 22? | BuyUp>99¢ | $4,557 | +$14 +0.3% | 4 |
| 184d | e25247f2da2a2462f03c936c379b7ab02 fills | S&P 500 (SPX) Opens Up or Down on April 22? | BuyUp98¢ → 100¢ | $15,868 | +$300 +1.9% | 4 |
| 184d | elysiian2 fills | S&P 500 (SPX) Opens Up or Down on April 22? | BuyUp99¢ → 100¢ | $12,155 | +$135 +1.1% | 4 |
| 184d | 0xe617…f251 | S&P 500 (SPX) Opens Up or Down on April 22? | BuyUp98¢ → 100¢ | $6,989 | +$143 +2.0% | 5 |
| 185d | Whytepyro | S&P 500 (SPX) Opens Up or Down on April 22? | BuyUp95¢ → 100¢ | $1,021 | +$49 +4.8% | 5 |
| 185d | Shakeshilly | S&P 500 (SPX) Opens Up or Down on April 22? | BuyUp82¢ → 100¢ | $1,066 | +$234 +22% | 9 |
| 185d | Xgs | S&P 500 (SPX) Opens Up or Down on April 22? | BuyUp78¢ → 100¢ | $2,253 | +$636 +28% | 10 |
| 185d | sdhyky | S&P 500 (SPX) Opens Up or Down on April 22? | BuyUp73¢ → 100¢ | $1,953 | +$722 +37% | 11 |
This market will resolve to "Up" if the official S&P 500 Index open price for S&P 500 (SPX) on April 22 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 April 22 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
Sources: Polymarket's Gamma API, its CLOB price history and its Data API, read every two minutes. Prices are each outcome's Yes price, which is the market's probability: 100¢ for Yes means the market gives it about 100%.