S&P 500 (SPY) closes above … on July 13?

Platform comparison

Market context

The S&P 500 tracking ETF (SPY) will settle on 13 July 2026 based on its closing price. The crowd currently assigns zero probability to a close above the strike level, suggesting either extreme confidence in a lower outcome or insufficient liquidity in the market depth at this particular threshold.

Historical volatility in the S&P 500 rarely produces zero-probability outcomes for any single-day close unless the strike is set far beyond reasonable bounds. During the 2008 financial crisis, the index fell roughly 57% from peak to trough over eighteen months; even in the sharpest single-day declines on record—such as 19 October 1987 (Black Monday, down 22.6%)—traders maintained non-zero odds on various price levels. The current 0% reading warrants scrutiny: it may reflect a strike so distant from consensus fair value that no trader bothers to bid, or it may indicate an error in crowd aggregation. Comparable markets with extreme probability skews often correct sharply once fresh capital enters.

Between now and mid-July 2026, the Federal Reserve's interest-rate trajectory, quarterly earnings releases, and macroeconomic data (inflation, employment, GDP growth) will drive directional conviction. Any unexpected policy shift or recession signal could trigger rapid repricing across all equity strikes. The settlement window closes at 20:00 UTC on 13 July, giving traders the full US market session to position. Value hunters should examine whether the zero probability reflects genuine market consensus or a liquidity gap worth exploiting.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.