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Will Microsoft be the largest company in the world by market cap on June 30?
24h Vol
$549.1K
Liquidity
$245.2K
Spread
0%
6/30/2026
View marketFinance
Polymarket market
Track live probability, outcome prices, volume, liquidity, and resolution details for SPY (SPY) Up or Down on June 8?. The market currently shows a live probability of 45%, $3.5K in 24h volume, and $7.7K in liquidity.
Probability
45%
24h Volume
$3.5K
Liquidity
$7.7K
This market asks whether SPY, the SPDR S&P 500 ETF, will finish June 8, 2026 above or below its prior trading day’s close. Because SPY is one of the most widely watched stock-market proxies in the U.S., even a one-day move can reflect shifting sentiment around equities, rates, inflation, or broader risk appetite. The contract uses the official pricing rule in the market description rather than a rough estimate, so the exact closing prints matter.
The outcome is tied to the close price for SPY on June 8, 2026 compared with the most recent previous trading day’s close. If June 8 closes higher, the market resolves to Up; if it closes lower, it resolves to Down; and if the two closes are exactly equal, the market resolves 50-50. The deadline shown on the page is June 8, 2026 at 20:00 UTC, which corresponds to the end of the U.S. regular session used for the close.
This contract captures a very simple but uncertain question: will the S&P 500 ETF end the day with a gain or a loss versus the last session? Traders, investors, and market watchers care because the answer depends on whatever happens between now and that close, including macroeconomic headlines, Federal Reserve expectations, earnings sentiment, or a broad risk-on/risk-off move. The market is pricing disagreement over whether the index proxy will finish modestly higher or lower on that specific date.
Any fresh development that changes the tone of U.S. equity trading can move this market quickly, especially major economic releases, central-bank commentary, or an abrupt swing in futures before the close. Because the contract is only about one day’s finish, intraday reversals matter: SPY can trade up for much of the session and still resolve Down if it loses ground by the closing print. Liquidity and the current bid-ask spread also suggest the market may react sharply to new information as June 8 approaches.
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24h Vol
$549.1K
Liquidity
$245.2K
Spread
0%
6/30/2026
View marketThe current market price implies roughly a 45% chance for the leading outcome, based on live Polymarket pricing. That number is not a prediction from PredictionNinja and it is not a guarantee; it is the current crowd-priced view of the market and can change quickly when new information appears.
Readers should check the exact settlement rule: the market uses the Pyth Close for the 1-minute candle at the end of regular trading hours on the primary exchange, with fallback rules if that candle is missing. If there is no regular-session trading at all, the contract resolves 50-50, and if the two specified closes are equal, it also resolves 50-50. The important thing to verify before resolution is not just where SPY traded during the day, but what the official close and the prior trading day’s close were under the market’s published rules.
Track live probability, outcome prices, volume, liquidity, and resolution details for SPY (SPY) Up or Down on June 8?. The market currently shows a live probability of 45%, $3.5K in 24h volume, and $7.7K in liquidity.
Track live finance prediction markets focused on interest rates, inflation, stock market events, central bank decisions, and global financial forecasting trends.
Up
44.5%
Down
55.5%
This market is currently listed with an end date of Jun 8, 2026. Market timelines can change if the underlying event is postponed, rescheduled, or resolved early.
This market will resolve to "Up" if the Close price for S&P 500 (SPY) on June 8, 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 June 8, 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).
Probability signal
The market is priced near the middle, which usually means traders are still weighing competing outcomes.
Liquidity context
Liquidity is present but not especially deep, so spreads and order-book movement still matter.
Spread
The bid-ask spread is wider, so the headline probability may be less precise than it looks.
Recent movement
The 24h move is notable, so recent news or market activity may have changed trader expectations.
The current displayed probability is 45%, based on the latest normalized Polymarket data available to PredictionNinja.
The rules and resolution criteria are pulled from the market description provided by Polymarket when available.
Prediction markets can move whenever traders react to new information, liquidity changes, injuries, announcements, news, or other event-specific developments.
No. PredictionNinja displays market data and context for research only. It is not financial, legal, betting, or investment advice.

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