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| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| Yes | 0% | — | — | — · <1¢ | — | ended |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 219d | RME123 | S&P 500 (SPX) Opens Up or Down on March 18? | SellDown>99¢ | $2,029 | −$2 −0.1% | — |
| 219d | Partial-Cytokine | S&P 500 (SPX) Opens Up or Down on March 18? | SellDown>99¢ | $2,371 | −$2 −0.1% | — |
| 219d |  SpikePrintf | S&P 500 (SPX) Opens Up or Down on March 18? | SellDown>99¢ | $2,292 | −$2 −0.1% | — |
| 219d | Homely-Weeder | S&P 500 (SPX) Opens Up or Down on March 18? | SellDown>99¢ | $2,085 | −$2 −0.1% | — |
| 219d | Acidic-Standpoint | S&P 500 (SPX) Opens Up or Down on March 18? | SellDown>99¢ | $1,127 | −$1 −0.1% | — |
| 219d |  stormy0012345 | S&P 500 (SPX) Opens Up or Down on March 18? | SellDown>99¢ | $1,054 | −$1 −0.1% | — |
| 219d | N3D1 | S&P 500 (SPX) Opens Up or Down on March 18? | SellDown>99¢ | $4,335 | −$4 −0.1% | — |
| 219d |  haerder2 fills | S&P 500 (SPX) Opens Up or Down on March 18? | BuyDown>99¢ | $3,188 | +$3 +0.1% | 4 |
| 219d | olabandola | S&P 500 (SPX) Opens Up or Down on March 18? | BuyDown>99¢ | $3,711 | +$4 +0.1% | 4 |
| 219d |  NotMasterFan | S&P 500 (SPX) Opens Up or Down on March 18? | BuyDown>99¢ | $1,998 | +$2 +0.1% | 4 |
| 219d | RME1233 fills | S&P 500 (SPX) Opens Up or Down on March 18? | BuyDown>99¢ | $7,106 | +$13 +0.2% | 4 |
| 219d | xenonliu | S&P 500 (SPX) Opens Up or Down on March 18? | SellDown>99¢ | $1,497 | −$3 −0.2% | — |
| 219d | Melody-L2 fills | S&P 500 (SPX) Opens Up or Down on March 18? | BuyDown99¢ → 100¢ | $5,756 | +$35 +0.6% | 4 |
| 219d | Homely-Weeder | S&P 500 (SPX) Opens Up or Down on March 18? | BuyDown>99¢ | $1,497 | +$3 +0.2% | 4 |
| 219d | Ill-Fated-Reef | S&P 500 (SPX) Opens Up or Down on March 18? | BuyDown>99¢ | $1,194 | +$5 +0.4% | 4 |
| 219d |  ArmageddonRewardsBilly3 fills | S&P 500 (SPX) Opens Up or Down on March 18? | BuyDown99¢ → 100¢ | $13,446 | +$95 +0.7% | 4 |
| 219d | 0xe617…f251 | S&P 500 (SPX) Opens Up or Down on March 18? | BuyDown99¢ → 100¢ | $3,000 | +$22 +0.7% | 4 |
| 219d | DegenEriccro | S&P 500 (SPX) Opens Up or Down on March 18? | BuyDown99¢ → 100¢ | $3,860 | +$40 +1.0% | 4 |
| 219d | Acidic-Standpoint | S&P 500 (SPX) Opens Up or Down on March 18? | BuyDown99¢ → 100¢ | $1,115 | +$14 +1.2% | 4 |
| 219d | PioZ331 | S&P 500 (SPX) Opens Up or Down on March 18? | BuyDown94¢ → 100¢ | $1,155 | +$80 +6.9% | 6 |
| 219d | sdhyky | S&P 500 (SPX) Opens Up or Down on March 18? | BuyDown89¢ → 100¢ | $1,220 | +$149 +12% | 7 |
| 219d | Assured-Magnet | S&P 500 (SPX) Opens Up or Down on March 18? | BuyUp95¢ → 0¢ | $1,070 | −$1,070 −100% | 5 |
| 220d | Partial-Cytokine | S&P 500 (SPX) Opens Up or Down on March 18? | BuyDown48¢ → 100¢ | $1,024 | +$1,104 +108% | 12 |
This market will resolve to "Up" if the official S&P 500 Index open price for S&P 500 (SPX) on March 18 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 March 18 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: 0¢ for Yes means the market gives it about 0%.