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| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| Yes | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 206d | Yanncll | S&P 500 (SPX) Opens Up or Down on March 31? | SellUp>99¢ | $1,036 | −$1 −0.1% | — |
| 206d | wtde | S&P 500 (SPX) Opens Up or Down on March 31? | SellUp>99¢ | $5,994 | −$6 −0.1% | — |
| 207d |  lemondeounada | S&P 500 (SPX) Opens Up or Down on March 31? | SellUp>99¢ | $5,170 | −$5 −0.1% | — |
| 207d | elysiian | S&P 500 (SPX) Opens Up or Down on March 31? | SellUp>99¢ | $1,613 | −$2 −0.1% | — |
| 207d | Uneven-Banjo | S&P 500 (SPX) Opens Up or Down on March 31? | SellUp>99¢ | $1,390 | −$3 −0.2% | — |
| 207d | RME123 | S&P 500 (SPX) Opens Up or Down on March 31? | BuyUp>99¢ | $1,717 | +$2 +0.1% | 4 |
| 207d |  Cristiano77 | S&P 500 (SPX) Opens Up or Down on March 31? | SellUp>99¢ | $1,920 | −$4 −0.2% | — |
| 207d |  VdeVolsa2 fills | S&P 500 (SPX) Opens Up or Down on March 31? | BuyUp96¢ → 100¢ | $4,422 | +$191 +4.3% | 5 |
| 207d |  BettingQuant | S&P 500 (SPX) Opens Up or Down on March 31? | SellUp99¢ → 100¢ | $1,013 | −$12 −1.2% | — |
| 207d | Yanncll | S&P 500 (SPX) Opens Up or Down on March 31? | BuyUp99¢ → 100¢ | $1,030 | +$7 +0.7% | 4 |
| 207d | Xgs3 fills | S&P 500 (SPX) Opens Up or Down on March 31? | BuyUp97¢ → 100¢ | $9,491 | +$327 +3.4% | 5 |
| 207d | DegenEriccro | S&P 500 (SPX) Opens Up or Down on March 31? | BuyUp99¢ → 100¢ | $1,692 | +$19 +1.1% | 4 |
| 207d | Uneven-Banjo | S&P 500 (SPX) Opens Up or Down on March 31? | BuyUp95¢ → 100¢ | $1,017 | +$52 +5.1% | 5 |
| 207d | sdhyky | S&P 500 (SPX) Opens Up or Down on March 31? | BuyUp91¢ → 100¢ | $3,270 | +$323 +9.9% | 6 |
| 207d | lemondeounada | S&P 500 (SPX) Opens Up or Down on March 31? | BuyUp94¢ → 100¢ | $5,582 | +$341 +6.1% | 6 |
| 207d | Cristiano77 | S&P 500 (SPX) Opens Up or Down on March 31? | BuyUp90¢ → 100¢ | $1,731 | +$193 +11% | 7 |
| 207d | Whytepyro | S&P 500 (SPX) Opens Up or Down on March 31? | BuyUp91¢ → 100¢ | $3,103 | +$307 +9.9% | 6 |
| 207d | 0xe617…f251 | S&P 500 (SPX) Opens Up or Down on March 31? | SellUp81¢ → 100¢ | $1,355 | −$327 −24% | — |
| 207d | 0xe617…f251 | S&P 500 (SPX) Opens Up or Down on March 31? | BuyUp89¢ → 100¢ | $1,500 | +$182 +12% | 7 |
| 207d | sdhyky | S&P 500 (SPX) Opens Up or Down on March 31? | BuyDown48¢ → 0¢ | $3,187 | −$3,187 −100% | 12 |
PatientGambler1,977 shares
azahed1,246 sharesThis market will resolve to "Up" if the official S&P 500 Index open price for S&P 500 (SPX) on March 31 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 31 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%.