FTSE 100 (UKX) Up or Down on September 28? Odds & Prediction Markets

Name: FTSE 100 (UKX) Up or Down on September 28?
Start: 2026-09-25T12:01:00.000Z
End: 2026-09-28T20:00:00.000Z

Description

This market will resolve to "Up" if the official FTSE 100 Index closing price for FTSE 100 (UKX) on Monday, September 28, 2026 is higher than the official FTSE 100 Index closing price for UKX on the most recent prior trading day. This market will resolve to "Down" if the official FTSE 100 Index closing price for FTSE 100 (UKX) on Monday, September 28, 2026 is lower than the official FTSE 100 Index closing price for UKX 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. Note that all figures will be rounded to the nearest cent using standard rounding. If UKX does not trade at all during the regular session, the market will resolve 50-50. If either of the relevant days are shortened (for example, due to a market holiday schedule), the official closing price published by FTSE 100 Index for that shortened session will still be used for resolution. If either of the relevant days have no official closing price (for example, due to a trading halt into the market close, system issue, delisting, or other disruption), the market will use the last valid on-exchange trade price of the regular session as the effective closing price. The resolution source for this market is the Wall Street Journal, specifically the Close values published by the WSJ under "Historical Prices". US: https://www.wsj.com/market-data/stocks EMEA: https://www.wsj.com/market-data/stocks/emea ASIA: https://www.wsj.com/market-data/stocks/asia

Polymarket

This market will resolve to "Up" if the official FTSE 100 Index closing price for FTSE 100 (UKX) on Monday, September 28, 2026 is higher than the official FTSE 100 Index closing price for UKX on the most recent prior trading day. This market will resolve to "Down" if the official FTSE 100 Index closing price for FTSE 100 (UKX) on Monday, September 28, 2026 is lower than the official FTSE 100 Index closing price for UKX 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. Note that all figures will be rounded to the nearest cent using standard rounding. If UKX does not trade at all during the regular session, the market will resolve 50-50. If either of the relevant days are shortened (for example, due to a market holiday schedule), the official closing price published by FTSE 100 Index for that shortened session will still be used for resolution. If either of the relevant days have no official closing price (for example, due to a trading halt into the market close, system issue, delisting, or other disruption), the market will use the last valid on-exchange trade price of the regular session as the effective closing price. The resolution source for this market is the Wall Street Journal, specifically the Close values published by the WSJ under "Historical Prices". US: https://www.wsj.com/market-data/stocks EMEA: https://www.wsj.com/market-data/stocks/emea ASIA: https://www.wsj.com/market-data/stocks/asia

Frequently asked questions

On Polymarket, the dashboard for the FTSE 100 direction market tracks the current odds of the index closing up or down on September 28. You can view the probability assigned to each outcome, as well as the trading volume over the past 24 hours, which is currently $15. The total volume traded on this market to date is $15. This provides a real-time view of how traders are assessing the likely direction of the FTSE 100, and how much capital is backing each possibility.

Currently, prediction market participants are indicating a strong expectation for an upward movement in the FTSE 100. This contrasts with some recent analyst reports, which present a more mixed outlook, with forecasts ranging from moderate gains to potential declines. While analyst opinions are valuable, this market represents a collective forecast based on individuals putting their capital at risk, potentially offering a different perspective on the likely outcome. It’s important to remember that both sources rely on interpreting the same underlying economic data.

This market resolves around Sep 28, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the official closing value of the FTSE 100 index on September 28. If the index closes higher than its opening value, the 'Up' outcome will prevail; conversely, if it closes lower, the 'Down' outcome will be considered the result. Traders will then be able to claim their winnings or adjust their positions based on the verified outcome.

Several key economic indicators and global events could significantly influence this market. Unexpected announcements regarding interest rate decisions from the Bank of England, major shifts in global economic growth forecasts, or geopolitical events could all trigger substantial price movements. Furthermore, company earnings reports from major constituents of the FTSE 100, and any surprising news related to Brexit or international trade agreements, are likely to be closely watched by traders and could impact the direction of this market.

FTSE 100 (UKX) Up or Down on September 28?

Cboe, S&P Dow Jones may explore tokenized options contracts under extended licensing deal

Why a Favorite Wall Street Tax Strategy Is Facing Scrutiny

Oura pulls $15bn stock market listing days after announcement

Market AI Risks Rattle Wall Street

Morgan Stanley Builds Crypto Lab to Test Future of Wall Street

BlueBay RBC: Global Bond Market Selloff is 'Overdone'

European Stocks Erase Gains as Selloff in US Bond Market Resumes

Indian Stocks Are Breaking Long-Held Supports as Selloff Deepens

Treasuries Selloff Stabilizes As Oil Surges

Treasuries Head Into Seasonally Poor October After Selloff

Markets

Details