Will the S&P 500 kick off March 2 with a bang or a whimper? This seemingly simple question holds a lot of weight for investors. Here's the breakdown: we're predicting whether the S&P 500 Index (SPX) will open higher or lower on March 2 compared to its closing price on the previous trading day.
But here's where it gets a little tricky:
Up or Down: If the opening price on March 2 is higher than the closing price of the most recent trading day, the market resolves to "Up." If it's lower, it's "Down."
Weekends and Holidays: Think of a Monday market. It compares itself to Friday's closing price, unless Friday was a holiday, in which case it looks back to Thursday, and so on.
- Ties and No Trades: If the opening and closing prices are identical, the market splits 50-50. And if the SPX doesn't trade at all during the regular session, it's also a 50-50 split.
Shortened Days: Even if the market has a shortened session (think holiday schedules), the official open and close prices for that day are still used.
Missing Closing Prices: If the previous day's closing price is unavailable due to technical issues, trading halts, or other disruptions, the last valid trade price of the regular session becomes the official closing price.
And this is the part most people miss: The Wall Street Journal's "Historical Prices" section is the official source for these open and close values. You can find them here:
This market was created on February 27, 2026, at 8:00 AM ET.
Now, here's a thought-provoking question: Does relying solely on open and close prices provide a complete picture of market sentiment, or are we missing crucial intraday movements? Let us know your thoughts in the comments below!
