S&P 500 (SPY) closes above … on July 22?

Platform comparison

Market context

Polymarket is currently pricing **0% YES**, even though SPY itself is trading around **$747–$750** today, which leaves the contract dependent on the exact threshold set in the market rather than the headline index level[1][2][4]. On Polymarket, users are not buying the S&P 500 directly; they are holding **USDC** positions on **Polygon**, with settlement handled through **conditional tokens** when the oracle resolves the closing value at the market’s specified time[4].

That 0% reading should be treated against the backdrop of how SPY has traded this year: the ETF reached a closing high of **757.62** on 2 June 2026, while its 52-week high sits at **760.40**, showing that nearby closing levels have been reachable but not routine[6]. Recent quotes around **747.41–749.81** also imply the contract’s outcome depends heavily on where the exact strike sits, because a small gap can flip a close from comfortably above to safely below[1][2][5].

For traders, the main drivers are the day’s cash equity session, any late-session reversal in index-heavy names, and the final printed SPY close used for settlement, not intraday highs or pre-market moves[4]. SPY’s reported support and resistance band of roughly **$742.15 to $754.41** suggests the market is close enough to those levels that a modest afternoon move could matter, especially if macro headlines, Fed commentary, or a broad risk-off move hits before the close[5].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews S&P 500 (SPY) closes above … on July 22? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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 Kalshi UK. 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.

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.