The S&P 500 closed March 2026 at 6,528.52, capping a volatile month with a 2.9% surge on March 31—its largest daily gain since last spring—fueled by trader optimism over potential de-escalation in the Iran conflict, easing geopolitical risk premiums after oil surges and rising Treasury yields hammered tech stocks earlier. The index fluctuated between roughly 6,400 and 6,600 amid Middle East tensions, elevated volatility, and shifting rate expectations, with year-to-date declines reflecting broader risk-off sentiment until the late relief rally. Polymarket traders' skin-in-the-game consensus priced in this uncertainty, now resolved; watch Q1 earnings starting this week, April CPI data, and the May FOMC for Q2 directional cues.
Experimental AI-generated summary referencing Polymarket data · Updated$141,205 Vol.
↓ 5700
1%
$141,205 Vol.
↓ 5700
1%
All prices recorded during regular trading hours of the primary exchange for the instrument, as reflected in Yahoo Finance's 1-minute interval ("1m") data, will be considered.
Periods when the market is officially closed (e.g., holidays or maintenance breaks) will not be considered.
All times referenced are local to the primary exchange on which the index trades.
The resolution source for this market is Yahoo Finance — specifically, the 1-minute interval ("1m") chart data for S&P 500 (SPX).
Note: S&P 500 (SPX) is represented by ^GSPC on Yahoo Finance.
Market Opened: Mar 9, 2026, 4:45 PM ET
Resolution Source
https://finance.yahoo.com/quote/%5EGSPC/Resolver
0x65070BE91...All prices recorded during regular trading hours of the primary exchange for the instrument, as reflected in Yahoo Finance's 1-minute interval ("1m") data, will be considered.
Periods when the market is officially closed (e.g., holidays or maintenance breaks) will not be considered.
All times referenced are local to the primary exchange on which the index trades.
The resolution source for this market is Yahoo Finance — specifically, the 1-minute interval ("1m") chart data for S&P 500 (SPX).
Note: S&P 500 (SPX) is represented by ^GSPC on Yahoo Finance.
Resolution Source
https://finance.yahoo.com/quote/%5EGSPC/Resolver
0x65070BE91...The S&P 500 closed March 2026 at 6,528.52, capping a volatile month with a 2.9% surge on March 31—its largest daily gain since last spring—fueled by trader optimism over potential de-escalation in the Iran conflict, easing geopolitical risk premiums after oil surges and rising Treasury yields hammered tech stocks earlier. The index fluctuated between roughly 6,400 and 6,600 amid Middle East tensions, elevated volatility, and shifting rate expectations, with year-to-date declines reflecting broader risk-off sentiment until the late relief rally. Polymarket traders' skin-in-the-game consensus priced in this uncertainty, now resolved; watch Q1 earnings starting this week, April CPI data, and the May FOMC for Q2 directional cues.
Experimental AI-generated summary referencing Polymarket data · Updated


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