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SPY (SPY) Up or Down on October 27?

No live price for this market yet.

Up 44 points today.

Decided by Pyth 1-minute candles, by October 27, 2026.

Research, not advice. Prices from Polymarket’s international site, not available in the US.

The short version

This market asks: sPY (SPY) Up or Down on October 27?

Possible results

UpThe result is “Up”.>99%
What has to happen
The Close price for S&P 500 (SPY) on October 27, 2026 is higher than the Close price for S&P 500 (SPY) on the most recent prior trading day.
DownThe result is “Down”.<1%
What has to happen
The Close price for S&P 500 (SPY) on October 27, 2026 is lower than the Close price for S&P 500 (SPY) on the most recent prior trading day.

Why the price is where it is

We haven’t found an official source explaining this yet.

The one trap

If the two specified closing prices are exactly equal, this market will resolve 50-50.

See all fine print

If S&P 500 (SPY) does not trade at all during the regular session, the market will resolve 50-50.

Price chart

Up >99%Down <1%

-Yes chance

View on Polymarket

Show details for experienced traders

The details

Rule note: only the close countsSettled by Pyth 1m candle

Fine-print risk

Low (5/100)

Market-Close Snapshot

Pro adds the exact price, today’s change in points, buyers vs sellers in dollars, the price chart and every recorded move. See Pro

Official source: settlement runs on Pyth 1-minute candles (pyth.network). Updates continuously (oracle / index feed). No recorded moves for this market yet.
Fine print: Intraday touches do not count. Only the exact closing snapshot at the cutoff timestamp settles this contract. Deadline: Tue, Oct 27, 2026, 9:30 AM ET. Polymarket relies on a "consensus of credible reporting" as of market close (4:00 PM ET regular session, after-hours excluded) and UMA oracle adjudication if share-count methodologies (basic vs. diluted, share classes) conflict.

Source named: Pyth 1m candle (not a tracked official feed, no release history)

Standardized read of public order book, official-source and contract-rule data, identical for every viewer. It describes the data and is not a recommendation. The venue’s published rules control settlement.

Show 3 smaller price or trading-volume entries

Contract moved -0.0 points in 15m (99.7¢ → 99.7¢); last-hour volume 3.1× hourly average; contract does not name an official .gov resolution source; spread 0.5¢; depth ±5¢ $1.6k bid / $10 ask.
1h ago
Contract moved +0.1 points in 15m (99.6¢ → 99.7¢); last-hour volume 6.1× hourly average; contract does not name an official .gov resolution source; spread 0.5¢; depth ±5¢ $592 bid / $539 ask.
2h ago
Contract moved +1.3 points in 15m (98.1¢ → 99.4¢); last-hour volume 6.2× hourly average; contract does not name an official .gov resolution source; spread 0.6¢; depth ±5¢ $589 bid / $50 ask.
2h ago

Full rules text on file (Polymarket)

This market will resolve to "Up" if the Close price for S&P 500 (SPY) on October 27, 2026 is higher than the Close price for S&P 500 (SPY) on the most recent prior trading day. This market will resolve to "Down" if the Close price for S&P 500 (SPY) on October 27, 2026 is lower than the Close price for S&P 500 (SPY) on the most recent prior trading day. E.g., ordinarily, a market on Monday would refer to the previous Friday for its most recent closing price, unless that Friday were a market holiday, in which case it would refer to Thursday, or the next most recent trading day. If the two specified closing prices are exactly equal, this market will resolve 50-50. Closing prices will be used exactly as published by Pyth, without rounding. If S&P 500 (SPY) does not trade at all during the regular session, the market will resolve 50-50. For a standard full trading session, the closing price refers to the Pyth "Close" value of the 1-minute candle corresponding to the final minute of regular trading hours on the primary exchange. If either of the relevant days has no valid Pyth Close value for the 1-minute candle corresponding to the end of regular trading hours on the primary exchange, the market will use the last valid Pyth price achieved during the regular trading hours of the primary exchange as the effective closing price. If no valid Pyth price exists for that trading day due to a system outage, data failure, or other technical disruption, the official closing price published by the primary exchange on which the listed security trades will be used to determine the closing price for that day. Only prices achieved during the regular trading hours of the primary exchange on which the listed security trades (typically 9:30 AM – 4:00 PM ET) will be considered. In the event of a stock split, reverse stock split, or similar corporate action affecting the listed security during the listed time frame, this market will resolve based on split-adjusted prices as displayed on Pyth. The resolution source for this market will be Pyth, specifically the "Close" values for the relevant 1-minute candle available at https://pythdata.app/explore/Equity.US.SPY%2FUSD. Historical 1-minute candles may be accessed by appending a Unix timestamp (seconds) to the Pyth chart URL using the "t=" parameter. Any timestamp within the listed market time frame may be used to view the relevant candle data (e.g., https://pythdata.app/explore/Equity.US.SPY%2FUSD?t=1773432000).

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