S&P 500 (SPX) Up or Down on July 13?

Platform comparison

Market context

The market hinges on whether the S&P 500 closes higher on Monday, 13 July 2026, than it did on Friday, 10 July, when the index settled at 7,575.39[5][7]. With the crowd assigning only a 5% chance to an upward move, traders are pricing in a continuation of the recent downturn, which has seen the index fall 1.53% over five days and 6.27% in the last month[3].

Historically, such low probabilities for a single-day gain often precede sharp reversals when the index trades near its 52-week high of 7,620.90, as seen in early June[6]. However, the current 52-week low of 7,508.16 and the 0.26% drop on 13 July itself suggest persistent selling pressure, with the index already down 5.11% year-to-date[3][6]. Comparable cases from mid-2024 show that when the SPX is down over 6% in a month, single-day rebounds occur in roughly 30% of sessions, yet the market’s 5% implied probability implies traders expect further weakness rather than a bounce.

Key catalysts include the release of US inflation data and Federal Reserve commentary scheduled for mid-July, which could trigger volatility[3]. Traders should monitor S&P 500 futures, currently trading near 6,754, as a leading indicator of spot direction[1]. Any surprise in corporate earnings from major index constituents like Domino’s Pizza or NXP Semiconductors, both down over 5% recently, could also sway the close[3].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for S&P 500 (SPX) Up or Down on July 13?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

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Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.