S&P 500 (SPX) Opens Up or Down on March 23?

Prediction market · Polymarket

Overview

This market will resolve to "Up" if the official S&P 500 Index open price for S&P 500 (SPX) on March 23 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 23 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

Ticker

spx-opens-up-or-down-on-march-23-2026

Volume

103.9K

24h volume

68.2K

1w volume

103.9K

Open interest

19.9K

Liquidity

8.3K

Liquidity CLOB

8.3K

Start

Mar 20, 2026

End

Mar 23, 2026

Status

Active

Access

Restricted

Created

Mar 23, 2026

Resolution source

https://www.wsj.com/market-data/stocks

Event ID

289455

Slug

spx-opens-up-or-down-on-march-23-2026

Markets

1

Tags

SPXDailyUp or DownHide From NewIndiciesFinance
Raw event data
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  "slug": "spx-opens-up-or-down-on-march-23-2026",
  "title": "S&P 500 (SPX) Opens Up or Down on March 23?",
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