This market will resolve to "Up" if the official S&P 500 Index open price for S&P 500 (SPX) on April 21 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 21 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
S&P 500 (SPX) Opens Up or Down on April 21?
Up or Down
Daily
Finance
Rewards Automation 500, 4.5, 50
SPX
Yes Probability
99%
No Probability
1%
Trading Volume
$202.8K
Time Remaining
Resolved
Yes Resolved
$199.9K Volume
99%
99.9¢
0.1¢
About This Market
Resolution Source: www.wsj.com
AI Analysis
The prediction market for the S&P 500 (SPX) opening on April 21 is currently showing a remarkable 99.9% probability that the index will open higher than its previous closing price. With a trading volume of $148K, this market reflects strong investor confidence in bullish momentum for the index, which is crucial for gauging market sentiment and potential investment strategies. Understanding these dynamics can help traders make informed decisions as they navigate the fluctuations of the stock market.