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S&P 500 (SPX) Opening Price on April 8?

Market icon

S&P 500 (SPX) Opening Price on April 8?

6700–6800 100.0%

6600–6700 <1%

<6600 <1%

6800–6900 <1%

Polymarket

$51,646 Vol.

6700–6800 100.0%

6600–6700 <1%

<6600 <1%

6800–6900 <1%

Polymarket

$51,646 Vol.

<6600

$14,121 Vol.

1%

6600–6700

$17,001 Vol.

1%

6700–6800

$8,918 Vol.

100%

6800–6900

$6,282 Vol.

1%

6900–7000

$1,009 Vol.

<1%

7000+

$4,315 Vol.

<1%

This market will resolve according to the official opening price for the S&P 500 (SPX) on April 8, 2026. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the April 8, 2026 trading day is shortened (for example, due to a market-holiday schedule), the official opening price published for that shortened session will still be used for resolution. If no official opening price is published for that session (for example, due to a delayed open, system issue, or other disruption), the market will use the first valid on-exchange trade price of the regular session as the effective opening price. The resolution source for this market is Yahoo Finance, specifically the S&P 500 (SPX) “Open” prices available at https://finance.yahoo.com/quote/%5EGSPC/history, published under “Historical Prices.”The S&P 500 index opened at 6,754.36 on April 8, 2026—firmly within the 6700–6800 range—driving Polymarket's trader consensus to a 99.9% implied probability on that outcome, backed by real capital reflecting skin-in-the-game certainty from official exchange data. This positioning stems from a sharp 2.5% rally, with pre-market futures surging over 170 points after President Trump's announcement of a two-week Middle East ceasefire, easing oil prices below $93/barrel and igniting broad risk-on sentiment amid reopening Strait of Hormuz hopes. Prior close near 6,617 underscored the breakout. Resolution hinges on final verification, though challenges like rare data revisions remain negligible risks.

This market will resolve according to the official opening price for the S&P 500 (SPX) on April 8, 2026.

If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket.

If the April 8, 2026 trading day is shortened (for example, due to a market-holiday schedule), the official opening price published for that shortened session will still be used for resolution.

If no official opening price is published for that session (for example, due to a delayed open, system issue, or other disruption), the market will use the first valid on-exchange trade price of the regular session as the effective opening price.

The resolution source for this market is Yahoo Finance, specifically the S&P 500 (SPX) “Open” prices available at https://finance.yahoo.com/quote/%5EGSPC/history, published under “Historical Prices.”
Volume
$51,646
End Date
Apr 8, 2026
Market Opened
Apr 7, 2026, 9:03 PM ET
This market will resolve according to the official opening price for the S&P 500 (SPX) on April 8, 2026. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the April 8, 2026 trading day is shortened (for example, due to a market-holiday schedule), the official opening price published for that shortened session will still be used for resolution. If no official opening price is published for that session (for example, due to a delayed open, system issue, or other disruption), the market will use the first valid on-exchange trade price of the regular session as the effective opening price. The resolution source for this market is Yahoo Finance, specifically the S&P 500 (SPX) “Open” prices available at https://finance.yahoo.com/quote/%5EGSPC/history, published under “Historical Prices.”
This market will resolve according to the official opening price for the S&P 500 (SPX) on April 8, 2026. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the April 8, 2026 trading day is shortened (for example, due to a market-holiday schedule), the official opening price published for that shortened session will still be used for resolution. If no official opening price is published for that session (for example, due to a delayed open, system issue, or other disruption), the market will use the first valid on-exchange trade price of the regular session as the effective opening price. The resolution source for this market is Yahoo Finance, specifically the S&P 500 (SPX) “Open” prices available at https://finance.yahoo.com/quote/%5EGSPC/history, published under “Historical Prices.”The S&P 500 index opened at 6,754.36 on April 8, 2026—firmly within the 6700–6800 range—driving Polymarket's trader consensus to a 99.9% implied probability on that outcome, backed by real capital reflecting skin-in-the-game certainty from official exchange data. This positioning stems from a sharp 2.5% rally, with pre-market futures surging over 170 points after President Trump's announcement of a two-week Middle East ceasefire, easing oil prices below $93/barrel and igniting broad risk-on sentiment amid reopening Strait of Hormuz hopes. Prior close near 6,617 underscored the breakout. Resolution hinges on final verification, though challenges like rare data revisions remain negligible risks.

This market will resolve according to the official opening price for the S&P 500 (SPX) on April 8, 2026.

If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket.

If the April 8, 2026 trading day is shortened (for example, due to a market-holiday schedule), the official opening price published for that shortened session will still be used for resolution.

If no official opening price is published for that session (for example, due to a delayed open, system issue, or other disruption), the market will use the first valid on-exchange trade price of the regular session as the effective opening price.

The resolution source for this market is Yahoo Finance, specifically the S&P 500 (SPX) “Open” prices available at https://finance.yahoo.com/quote/%5EGSPC/history, published under “Historical Prices.”
Volume
$51,646
End Date
Apr 8, 2026
Market Opened
Apr 7, 2026, 9:03 PM ET
This market will resolve according to the official opening price for the S&P 500 (SPX) on April 8, 2026. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the April 8, 2026 trading day is shortened (for example, due to a market-holiday schedule), the official opening price published for that shortened session will still be used for resolution. If no official opening price is published for that session (for example, due to a delayed open, system issue, or other disruption), the market will use the first valid on-exchange trade price of the regular session as the effective opening price. The resolution source for this market is Yahoo Finance, specifically the S&P 500 (SPX) “Open” prices available at https://finance.yahoo.com/quote/%5EGSPC/history, published under “Historical Prices.”

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Frequently Asked Questions

"S&P 500 (SPX) Opening Price on April 8?" is a prediction market on Polymarket with 6 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "6700–6800" at 100%, followed by "<6600" at 0%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 100¢ implies that the market collectively assigns a 100% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "S&P 500 (SPX) Opening Price on April 8?" has generated $51.6K in total trading volume since the market launched on Apr 8, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "S&P 500 (SPX) Opening Price on April 8?," browse the 6 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "S&P 500 (SPX) Opening Price on April 8?" is "6700–6800" at 100%, meaning the market assigns a 100% chance to that outcome. The next closest outcome is "<6600" at 0%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "S&P 500 (SPX) Opening Price on April 8?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.