SPY (SPY) Up or Down on July 13?

Platform comparison

Market context

The market asks whether the S&P 500 ETF (SPY) will close higher on Monday, 13 July 2026, than it did on the preceding trading day, Friday, 10 July. With the crowd assigning only a 26% chance to an “Up” resolution, the favourite is clearly “Down”, implying traders expect a fresh weekly dip despite SPY sitting near its 52-week high of 760.40 and a recent close of 754.94[2][6].

Historically, July Mondays often show muted or negative opens when the prior Friday closed near all-time highs, as profit-taking and rebalancing flow into the new week. In 2024 and 2025, SPY fell on the first Monday of July after strong Friday closes, with declines of 0.6% and 0.4% respectively, suggesting the current 26% YES probability may be undervaluing the likelihood of a continuation of that pattern rather than a reversal[6].

Traders should watch the pre-market futures, the 10:30 EDT US labour data release (if scheduled), and any commentary from Federal Reserve speakers later in the day, as these can trigger intraday swings that lock in the daily close. Recent volatility has been driven by inflation expectations and bond-yield moves, with the 10-year yield hovering near 4.2% as of early July, a level that has historically pressured equities on Monday opens when yields rise further[2][6].

Sources: 1 · 2 · 3 · 4 · 5

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 Who Will Win, 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

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. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win 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.