Sharpbook
Polymarket· finance· open· settles 2026-12-31

Will S&P 500 (SPX) hit $8,000 (HIGH) in December?

Open on Polymarket ↗Yes last at 57¢

The catch

  • Only the 1-minute candle high price counts, not the index close or intraday trades.
    “This market will resolve to "Yes" if, at any point between market creation and market close on the final day of trading for December 2026, any 1-minute candle for S&P 500 (SPX) shows a final "High" price equal to or above the listed price.” · market rules ↗

Pays out only if

  • The S&P 500 index reaches a high of $8,000 or above on any 1-minute candle.
    “This market will resolve to "Yes" if, at any point between market creation and market close on the final day of trading for December 2026, any 1-minute candle for S&P 500 (SPX) shows a final "High" price equal to or above the listed price.” · market rules ↗
  • Has to happen during December 2026
    “This market will resolve to "Yes" if, at any point between market creation and market close on the final day of trading for December 2026, any 1-minute candle for S&P 500 (SPX) shows a final "High" price equal to or above the listed price.” · market rules ↗
  • Counts as done when: 1-minute candle high price as recorded on Yahoo Finance
    “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.” · market rules ↗
  • Decided by: Yahoo Finance, Wall Street Journal Markets, Google Finance, Market Watch
    “The resolution source for this market is Yahoo Finance — specifically, the 1-minute interval ("1m") chart data for S&P 500 (SPX) available at https://finance.yahoo.com/quote/%5EGSPC/. If, at market close on the final day of trading of December 2026, price data is unavailable from Yahoo Finance for any relevant period, price data from Wall Street Journal Markets, Google Finance, and Market Watch will be used, in that order.” · market rules ↗

Does not count

  • Prices during periods when the market is officially closed (holidays or maintenance breaks)
    “Periods when the market is officially closed (e.g., holidays or maintenance breaks) will not be considered.” · market rules ↗
  • S&P 500 closes above $8,000 but no 1-minute candle high reaches $8,000our reading
  • S&P 500 hits $8,000 in after-hours or pre-market trading outside regular hoursour reading
  • S&P 500 hits $8,000 in January 2027 or laterour reading

Watch out

  • WATCHOne publication decides the outcome
    “The resolution source for this market is Yahoo Finance — specifically, the 1-minute interval ("1m") chart data for S&P 500 (SPX) available at https://finance.yahoo.com/quote/%5EGSPC/. If, at market close on the final day of trading of December 2026, price data is unavailable from Yahoo Finance for any relevant period, price data from Wall Street Journal Markets, Google Finance, and Market Watch will be used, in that order.” · market rules ↗
  • WATCHSome obvious wins don't count
  • WATCHThe venue keeps a right to review the outcome
    “If price data is not available for the relevant period from any of these sources by December 31, 2026, 11:59 PM ET, this market will resolve based on the available data at that time.” · market rules ↗

Read on 2026-09-11. Click a line for the sentence it rests on. Facts and gaps only, not a prediction.

The rules, in plain English

This market resolves to Yes if any 1-minute candle for the S&P 500 shows a high price of $8,000 or above at any point from market creation through the final trading day of December 2026. Otherwise it resolves to No. Only prices recorded during regular trading hours of the primary exchange, as shown in Yahoo Finance's 1-minute interval data, will be considered. Periods when the market is officially closed (holidays or maintenance breaks) will not be considered. All times are local to the primary exchange where the index trades. The resolution source is Yahoo Finance's 1-minute chart data for S&P 500 (SPX). If Yahoo Finance data is unavailable at market close on the final trading day of December 2026, Wall Street Journal Markets, Google Finance, and Market Watch will be used in that order. If no price data is available from any of these sources by December 31, 2026, 11:59 PM ET, the market will resolve based on available data at that time.

What the rules leave open

  • What constitutes the 'final day of trading for December 2026' if the last calendar day is a weekend or holiday
    closest the rules come: “All times referenced are local to the primary exchange on which the index trades.” · market rules ↗