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| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| Yes | 0% | −57 pts | — | — · <1¢ | — | ended |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 238d |  BettingQuant3 fills | S&P 500 (SPX) Opens Up or Down on February 20? | SellDown98¢ → 100¢ | $4,765 | −$97 −2.0% | — |
| 239d | reuben-11 | S&P 500 (SPX) Opens Up or Down on February 20? | SellDown>99¢ | $3,247 | −$3 −0.1% | — |
| 239d | wabawhje | S&P 500 (SPX) Opens Up or Down on February 20? | SellDown>99¢ | $1,167 | −$1 −0.1% | — |
| 239d |  OraculumNobius2 fills | S&P 500 (SPX) Opens Up or Down on February 20? | BuyDown>99¢ | $10,999 | +$11 +0.1% | 4 |
| 239d | reuben-11 | S&P 500 (SPX) Opens Up or Down on February 20? | BuyDown>99¢ | $3,247 | +$3 +0.1% | 4 |
| 239d |  ArmageddonRewardsBilly | S&P 500 (SPX) Opens Up or Down on February 20? | BuyDown>99¢ | $3,244 | +$7 +0.2% | 4 |
| 239d | DegenEriccro2 fills | S&P 500 (SPX) Opens Up or Down on February 20? | BuyDown>99¢ | $3,118 | +$14 +0.4% | 4 |
| 239d | Powerless-Diving | S&P 500 (SPX) Opens Up or Down on February 20? | BuyDown99¢ → 100¢ | $3,209 | +$37 +1.2% | 4 |
| 239d | BettingQuant2 fills | S&P 500 (SPX) Opens Up or Down on February 20? | BuyDown92¢ → 100¢ | $3,217 | +$278 +8.6% | 6 |
| 239d |  budu100 | S&P 500 (SPX) Opens Up or Down on February 20? | BuyUp81¢ → 0¢ | $1,074 | −$1,074 −100% | 9 |
flywheelpoly1,642 sharesThis market will resolve to "Up" if the official S&P 500 Index open price for S&P 500 (SPX) on February 20 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 February 20 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%.