Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Klarna UK) Pick polygram.ink (preferred broker) |
33% | 67% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
33% | 67% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Market context
The market resolves based on whether the S&P 500 closes higher on Wednesday, 1 July 2026 than it did on the most recent prior trading day, typically the previous Friday. With the index currently trading near 7,515 and showing a modest 0.22% daily gain, the crowd-implied 79% probability of an “Up” outcome reflects confidence in continued short-term momentum.
Historically, early-July sessions have often followed strong June performance, with the S&P 500 rising 14.87% over the past three months. Comparable cases from 2023 and 2024 show that when the index closes above its 50-day average in late June, the next trading day frequently confirms an upward move. The current 52-week high of 7,620.90 remains a key psychological barrier, but the 1.82% five-day gain suggests buyers are still active.
Traders should monitor the Federal Reserve’s upcoming policy statement and any revisions to the June employment report, both scheduled this week. A recent CNBC analysis noted that market volatility has dipped as inflation expectations stabilise, supporting risk assets like equities. Funding flows into prediction markets remain sensitive to deposit rails—particularly Klarna and SEPA—where lower fees and faster withdrawals correlate with deeper books and more accurate pricing. As USDC liquidity expands, on-ramp friction continues to ease, reinforcing the market’s depth and the weight of the 79% YES signal.
Methodology
This page compares S&P 500 (SPX) Up or Down on July 1? 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
- 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.
- Which payment methods are supported?
- Klarna (Pay Now / Pay Later), SOFORT, SEPA bank transfer, credit card (Visa/Mastercard), Apple Pay, Google Pay, and direct USDC deposit on Polygon. Availability depends on your jurisdiction.
- 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.
- How do withdrawals work?
- Identical methods in reverse. SEPA withdrawal: T+1 (standard) or under 10 seconds (SEPA Instant). Klarna withdrawals process via bank-account refund. USDC withdrawal to external wallet: Polygon gas cost (typically $0.01).
- 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.
Trade S&P 500 (SPX) Up or Down on July 1? on Polymarket Klarna UK
Live order book, 0% fees, USDC settlement in seconds.
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