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, decisively above the $725 threshold that currently holds a 0% YES probability in the prediction market [2]. This outcome reflects a market that has already priced in the settlement, with the crowd assigning a 98% probability to the $720 outcome and 96% to $730, confirming the index’s resilience through mid-year volatility [4].

Historically, SPY has demonstrated strong July performance, with the 52-week average at $678.40 and an all-time high of $757.62 reached in early June 2026 [5]. The current close sits just 1.9% below that peak, suggesting the 0% YES probability for the $725 outcome is not a forecast of failure but a reflection of the event’s certainty—traders are effectively betting on higher strike prices, not lower ones.

Key catalysts for future book depth include the USDC and SEPA on-ramp schedules, which directly influence deposit velocity and fee structures for retail participants. Recent announcements from Klarna regarding reduced withdrawal friction on UK rails have already boosted liquidity in similar equity-linked markets, as lower friction correlates with deeper order books and tighter spreads [1]. Traders should monitor the next Fed interest rate decision and any updates on digital asset custody rules, as these will shape funding flows into prediction markets tied to major indices.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares S&P 500 (SPY) closes above … on July 20? with a focus on payment rails and deposit friction. Polymarket accepts USDC on Polygon only; Kalshi only ACH/Plaid (US only); Betfair card/SEPA in EU/UK; Manifold no deposit. Polymarket Klarna UK additionally offers Klarna and SOFORT as fiat on-ramps to USDC. Live odds reflect the Polymarket order book.

Resolution & payout

Settlement path determines payout latency. Polymarket settles on-chain (USDC, minutes). Broker frontends like Polymarket Klarna UK add Klarna/SOFORT as fiat withdrawal options with T+1 processing. Kalshi: USD via ACH (T+1 to T+3). Betfair: local currency via card/SEPA (T+1 to T+5).

FAQ

How does Klarna deposit work on Polymarket Klarna UK?

You enter the deposit amount in EUR/GBP, choose Klarna as the method, run through Klarna's standard authentication (Pay Later or Direct Bank Transfer), and Polymarket Klarna UK converts internally to USDC for the Polymarket order book. Processing: typically under 30 minutes.

What does SOFORT cost as a deposit method?

Polymarket Klarna UK charges no fees for SOFORT. The only cost is the internal FX spread (typically <1%) on EUR→USDC conversion. SOFORT itself has no end-user fees — the platform absorbs acquirer costs.

Can I deposit with a credit card?

Yes, Visa and Mastercard. Credit card deposits carry a ~2.5% acquirer surcharge (standard for card payments). Apple Pay and Google Pay run on the same card rails — same surcharge.

What's the minimum deposit?

10 EUR / 10 USD equivalent. No upper limit, but deposits over $1,500 lifetime volume trigger a quick KYC flow (typically 5-10 minutes).

Are payment details protected?

Yes. Card and bank details are never stored by Polymarket Klarna UK — they pass directly through PCI-DSS compliant payment service providers (Adyen, Stripe). Polymarket Klarna UK retains only transaction IDs and Klarna reference numbers for reconciliation.