Finance·Equities

What will S&P 500 (SPX) close at in March?

Finance·Equities

What will S&P 500 (SPX) close at in March?

Ended: Mar 31

Dec 31

Ended: Mar 31

Dec 31

$6,500-$6,600 100.0%

<$6,400 <1%

$6,400-$6,500 <1%

$6,600-$6,700 <1%

$45,016 Vol.

$45,016 Vol.

Mar 31, 2026

<$6,400

$8,731 Vol.

No

$6,400-$6,500

$8,966 Vol.

No

$6,500-$6,600

$10,505 Vol.

Yes

$6,600-$6,700

$6,648 Vol.

No

$6,700-$6,800

$1,221 Vol.

No

$6,800-$6,900

$2,001 Vol.

No

$6,900-$7,000

$1,055 Vol.

No

$7,000-$7,100

$2,608 Vol.

No

$7,100-$7,200

$1,498 Vol.

No

$7,200-$7,300

$404 Vol.

No

>$7,300

$1,379 Vol.

No

$6,500-$6,600 100.0%

<$6,400 <1%

$6,400-$6,500 <1%

$6,600-$6,700 <1%

$45,016 Vol.

$45,016 Vol.

Mar 31, 2026

<$6,400

$8,731 Vol.

No

$6,400-$6,500

$8,966 Vol.

No

$6,500-$6,600

$10,505 Vol.

Yes

$6,600-$6,700

$6,648 Vol.

No

$6,700-$6,800

$1,221 Vol.

No

$6,800-$6,900

$2,001 Vol.

No

$6,900-$7,000

$1,055 Vol.

No

$7,000-$7,100

$2,608 Vol.

No

$7,100-$7,200

$1,498 Vol.

No

$7,200-$7,300

$404 Vol.

No

>$7,300

$1,379 Vol.

No

This market will resolve according to the official closing price for S&P 500 (SPX) on the final trading day of March 2026. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the final trading day of the month is shortened (for example, due to a market-holiday schedule), the official closing price published for that shortened session will still be used for resolution. If no official closing price is published for that session (for example, due to a trading halt into the close, system issue, delisting, or other disruption), the market will use the last valid recorded price in March as the effective closing price. The resolution source for this market is Yahoo Finance, specifically the S&P 500 (SPX) "Close" prices available at https://finance.yahoo.com/quote/%5EGSPC/history, published under "Historical Prices."

Outcome proposed: No

No dispute

Final outcome: No

This market will resolve according to the official closing price for S&P 500 (SPX) on the final trading day of March 2026. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the final trading day of the month is shortened (for example, due to a market-holiday schedule), the official closing price published for that shortened session will still be used for resolution. If no official closing price is published for that session (for example, due to a trading halt into the close, system issue, delisting, or other disruption), the market will use the last valid recorded price in March as the effective closing price. The resolution source for this market is Yahoo Finance, specifically the S&P 500 (SPX) "Close" prices available at https://finance.yahoo.com/quote/%5EGSPC/history, published under "Historical Prices."

Outcome proposed: No

No dispute

Final outcome: No

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Frequently Asked Questions

"What will S&P 500 (SPX) close at in March?" is a prediction market on Polymarket with 11 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "$6,500-$6,600" at 100%, followed by "<$6,400" 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, "What will S&P 500 (SPX) close at in March?" has generated $45K in total trading volume since the market launched on Mar 3, 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 "What will S&P 500 (SPX) close at in March?," browse the 11 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 "What will S&P 500 (SPX) close at in March?" is "$6,500-$6,600" at 100%, meaning the market assigns a 100% chance to that outcome. The next closest outcome is "<$6,400" 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 "What will S&P 500 (SPX) close at in March?" 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.

Yes. You don't need to trade to stay informed. This page serves as a live tracker for "What will S&P 500 (SPX) close at in March?." The outcome probabilities update in real-time as new trades come in. You can bookmark this page and check the comments section to see what other traders are saying. You can also use the time-range filters on the chart to see how the odds have shifted over time. It's a free, real-time window into what the market expects to happen.

Polymarket odds are set by real traders putting real money behind their beliefs, which tends to surface accurate predictions. With $45K traded on “What will S&P 500 (SPX) close at in March?,” these prices aggregate the collective knowledge and conviction of thousands of participants — often outperforming polls, expert forecasts, and traditional surveys. Prediction markets like Polymarket have a strong track record of accuracy, especially as events approach their resolution date. For example, Polymarket has a one month accuracy score of 94%. For the latest stats on Polymarket’s prediction accuracy, visit the accuracy page on Polymarket.

To place your first trade on "What will S&P 500 (SPX) close at in March?," sign up for a free Polymarket account and fund it using crypto, a credit or debit card, or a bank transfer. Once your account is funded, return to this page, select the outcome you want to trade, enter your amount, and click "Trade." If you're new to prediction markets, click the "How it works" link at the top of any Polymarket page for a quick step-by-step walkthrough of how trading works.

On Polymarket, the price of each outcome represents the market's implied probability. A price of 100¢ for "$6,500-$6,600" in the "What will S&P 500 (SPX) close at in March?" market means traders collectively believe there is roughly a 100% chance that "$6,500-$6,600" will be the correct result. If you buy "Yes" shares at 100¢ and the outcome is correct, you receive $1.00 per share — a profit of 0¢ per share. If incorrect, those shares are worth $0.

The "What will S&P 500 (SPX) close at in March?" market has been resolved. The final result has been determined and the market is no longer open for trading. You can still review the historical odds, outcome probabilities, and comments on this page to see how predictions evolved over time.

The "What will S&P 500 (SPX) close at in March?" market was recently created. Be one of the first to share your analysis by posting a comment below, or check back as the market grows to read what other traders think. You can also view the "Activity" tab for a real-time feed of recent trades.

Polymarket is the world's largest prediction market, where you can stay informed and profit from your knowledge of real-world events. Traders buy and sell shares on outcomes for topics ranging from politics and elections to crypto, finance, sports, tech, and culture, including markets like "What will S&P 500 (SPX) close at in March?." Prices reflect real-time, crowd-sourced probabilities backed by financial conviction, often providing faster and more accurate signals than polls, pundits, or traditional surveys.