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| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| Yes | 100% | +80 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 270d | vvvix4 fills | S&P 500 (SPX) Opens Up or Down on January 26? | SellUp>99¢ | $15,230 | −$20 −0.1% | — |
| 270d | Vital-Mathematics | S&P 500 (SPX) Opens Up or Down on January 26? | BuyUp>99¢ | $1,998 | +$2 +0.1% | 4 |
| 270d | cripes3 | S&P 500 (SPX) Opens Up or Down on January 26? | BuyUp>99¢ | $2,677 | +$3 +0.1% | 4 |
| 270d | MintyOrbitLight | S&P 500 (SPX) Opens Up or Down on January 26? | SellUp>99¢ | $1,198 | −$2 −0.2% | — |
| 271d |  1977S | S&P 500 (SPX) Opens Up or Down on January 26? | SellUp>99¢ | $1,203 | −$1 −0.1% | — |
| 271d | flowknows | S&P 500 (SPX) Opens Up or Down on January 26? | SellUp>99¢ | $3,273 | −$3 −0.1% | — |
| 271d |  monstur | S&P 500 (SPX) Opens Up or Down on January 26? | SellUp>99¢ | $3,274 | −$3 −0.1% | — |
| 271d | weather.fanatic | S&P 500 (SPX) Opens Up or Down on January 26? | SellUp>99¢ | $1,123 | −$1 −0.1% | — |
| 271d |  NotMasterFan | S&P 500 (SPX) Opens Up or Down on January 26? | BuyUp>99¢ | $1,129 | +$1 +0.1% | 4 |
| 271d | SilentHunter | S&P 500 (SPX) Opens Up or Down on January 26? | BuyUp88¢ → 100¢ | $1,270 | +$173 +14% | 7 |
| 271d | monstur | S&P 500 (SPX) Opens Up or Down on January 26? | BuyUp87¢ → 100¢ | $1,680 | +$250 +15% | 7 |
| 271d | Occasional-Tilt | S&P 500 (SPX) Opens Up or Down on January 26? | SellUp83¢ → 100¢ | $2,406 | −$493 −20% | — |
| 271d | Winter-Wonderland | S&P 500 (SPX) Opens Up or Down on January 26? | BuyUp82¢ → 100¢ | $1,767 | +$388 +22% | 9 |
| 271d | flowknows | S&P 500 (SPX) Opens Up or Down on January 26? | BuyUp45¢ → 100¢ | $1,469 | +$1,807 +123% | 12 |
| 271d | flowknows | S&P 500 (SPX) Opens Up or Down on January 26? | SellDown60¢ → 0¢ | $1,469 | +$1,469 +100% | — |
| 271d | 103060active | S&P 500 (SPX) Opens Up or Down on January 26? | SellDown67¢ → 0¢ | $2,814 | +$2,814 +100% | — |
| 271d | T1canwin | S&P 500 (SPX) Opens Up or Down on January 26? | BuyDown85¢ → 0¢ | $1,248 | −$1,248 −100% | 8 |
| 271d | flowknows | S&P 500 (SPX) Opens Up or Down on January 26? | BuyDown82¢ → 0¢ | $2,002 | −$2,002 −100% | 9 |
| 272d | DMPredict | S&P 500 (SPX) Opens Up or Down on January 26? | BuyDown74¢ → 0¢ | $2,212 | −$2,212 −100% | 8 |
| 272d | 103060active | S&P 500 (SPX) Opens Up or Down on January 26? | BuyDown60¢ → 0¢ | $5,000 | −$5,000 −100% | 9 |
| 272d | johndoez | S&P 500 (SPX) Opens Up or Down on January 26? | BuyDown51¢ → 0¢ | $3,570 | −$3,570 −100% | 9 |
| 272d | kinkkukaarlo | S&P 500 (SPX) Opens Up or Down on January 26? | BuyDown51¢ → 0¢ | $1,020 | −$1,020 −100% | 9 |
| 273d | fguytfcvhyrdfji | S&P 500 (SPX) Opens Up or Down on January 26? | BuyUp50¢ → 100¢ | $1,000 | +$1,000 +100% | 9 |
This market will resolve to "Up" if the official S&P 500 Index open price for S&P 500 (SPX) on January 26 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 January 26 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%.