S&P 500 (SPY) closes above … on July 20?

Platform comparison

Market context

The S&P 500 ETF (SPY) closed at $742.09 on 20 July 2026, well below any plausible threshold that would trigger a “YES” outcome for the market asking if it closes above a specific level. With the crowd-implied probability at 0% YES, the market reflects the certainty that the settlement condition was not met, as the actual close failed to exceed the blanked threshold implied by the contract’s design.

Historically, SPY has shown resilience in mid-July, often consolidating gains before summer volatility eases, but it has rarely surged past $760 without a major catalyst. The 52-week range sits between $591.05 and $760.40, meaning the July 20 close of $742.09 remains within normal bounds but far from the upper bound needed to flip a high-threshold contract [4]. Past years show that even strong July sessions rarely breach the annual high without Fed intervention or earnings surprises, making a 0% probability consistent with technical and seasonal patterns.

Traders should monitor upcoming Federal Reserve announcements and Q2 earnings releases from major index constituents, as these are the primary catalysts that could shift SPY’s trajectory toward the $760 ceiling. Recent market commentary from CNBC notes that SPY’s +0.54% move on the day reflects cautious optimism, yet the lack of breakout momentum suggests limited upside before the settlement window closes [2]. On Polymarket, this contract settles via USDC on Polygon using conditional tokens, meaning the 0% YES price is final once the July 20 close is verified on-chain.

Sources: 1 · 2 · 3 · 4

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi UK, which mirrors the Polymarket order book directly.

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

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 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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.