S&P 500 (SPX) Up or Down on August 7?

Platform comparison

Market context

The S&P 500 needs to finish **higher than the previous trading day’s close** to settle “Up”, and the current 99% crowd reading leaves very little room for a late reversal. The benchmark has been choppy into the week: it closed at 7,503.85 on Tuesday and 7,482.71 on Wednesday, after a 5-day run that still sat close to flat overall, with Barchart showing the index down 0.12% across the latest five sessions and MarketWatch listing a 5-day change of -1.53%.[5][2][4]

That probability is easier to read against a backdrop where the tape has recently been near record territory but with softening momentum. The index briefly printed 7,600.50 on 3 August, described by Morningstar as its second-highest close on record, yet the broader August profile has been weaker, with MarketWatch showing a 1-month change of -6.27% and year-to-date performance still negative.[10][4] Comparable late-summer sessions often hinge less on trend and more on one or two data surprises, which matters when a market is already priced as near-certain.

For today’s catalyst set, the key release is the **July nonfarm payrolls and unemployment rate**, due before the open, which can alter rate-cut expectations, Treasury yields, and equity breadth into the close.[9][13] That data risk is especially relevant for a market like this because funding friction affects who can express the view: bank card deposits and quick on-ramp rails such as Klarna can lift participation, while SEPA transfers and USDC withdrawals make it easier for larger balances to recycle in and out, supporting book depth when volatility rises. On a day with a high-implied favourite, depth tends to matter more than direction.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares S&P 500 (SPX) Up or Down on August 7? 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).

UK Frequently Asked Questions

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 UK traders use Klarna to deposit on Polymarket?

Polymarket does not natively accept Klarna. To fund a Polymarket account from the UK, you must first purchase USDC via a crypto exchange (Coinbase UK, Kraken) or Revolut, then transfer to a Polygon-compatible wallet. Some third-party on-ramps (MoonPay, Transak) accept UK debit cards and may support Klarna buy-now-pay-later for crypto purchases.

What payment methods can UK users use for Polymarket?

UK traders typically use: (1) Coinbase UK or Kraken — buy USDC with GBP debit card or bank transfer; (2) Revolut — buy crypto and send to wallet; (3) MoonPay or Transak — Visa/Mastercard UK debit card directly to USDC on Polygon. Standard GBP-to-USDC conversion fees range from 0.5–2.5%.

How long do Polymarket withdrawals take for UK users?

Polymarket withdrawals to your Polygon wallet are instant (on-chain). Converting USDC back to GBP via Coinbase UK or Kraken typically takes 1–3 business days for bank transfer, or near-instant for Revolut. Polygon gas fees are minimal (<$0.01 per transaction).