SPY (SPY) Up or Down on July 13?

Platform comparison

Market context

The market bets on whether the S&P 500 ETF (SPY) closes higher on Monday, 13 July 2026, than it did on the previous trading day, with the crowd currently pricing a rise at just 20%. This low implied probability suggests traders expect a daily dip, a stance that diverges notably from the broader analyst consensus which typically leans bullish on daily moves in the absence of negative catalysts.

Historically, single-day declines in SPY during mid-July are uncommon, with the index averaging modest gains over this period in recent years. The current 20% probability for an upside move is significantly lower than the historical frequency of positive daily closes, which usually sits above 50%, indicating a potential mispricing or an expectation of a specific, unannounced negative shock. Traders comparing this to sportsbook-style lines on daily equity moves often see such low odds for a rise as an outlier, suggesting the market is overreacting to recent volatility rather than fundamentals.

Key catalysts to monitor include the release of the US Consumer Price Index (CPI) data scheduled for mid-July, which frequently drives immediate intraday swings, and any Federal Reserve commentary expected around this window. Recent reports from CNBC highlight that SPY is currently trading near its 52-week high of 760.40, with the previous close at 751.71, making the index sensitive to any macroeconomic headlines that could trigger a pullback from these elevated levels [2]. The settlement depends entirely on the closing auction between 3:50 pm and 4:00 pm Eastern, where closing cross trades often finalise the daily direction [1].

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 Best Prediction Markets 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.

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 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.

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.