Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Bot UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| $750 | 100% |
| $745 | 100% |
| $740 | 100% |
| $735 | 100% |
| $730 | 100% |
| $780 | 0% |
| $775 | 0% |
| $770 | 0% |
| $765 | 0% |
| $760 | 0% |
| $755 | 0% |
Market context
The market resolves on whether the SPDR S&P 500 ETF Trust (SPY) finishes its trading day above a specific threshold on 16 July 2026. With SPY currently trading near $751.85 and the all-time high closing price recorded at $757.62 in early June, the 0% crowd-implied probability suggests the strike price sits significantly above the current market level, rendering a YES outcome virtually impossible under normal volatility conditions [1][7].
Historically, SPY has demonstrated limited intraday expansion beyond its 52-week high of $760.40, with the average price over the last year sitting at $678.40 [7]. Programmatic traders evaluating this market would note that a 0% probability typically indicates the strike is outside the feasible range of a single-day move, even accounting for the 3.7% buffer to the 52-week peak. Copy-trading bots and conditional order scripts would likely filter this as a non-viable position, as the statistical likelihood of a gap or surge exceeding the required margin is negligible without a catastrophic macro event.
Traders monitoring the settlement window should watch for scheduled Federal Reserve announcements or unexpected earnings releases from major index constituents, though no immediate catalysts currently threaten to alter the trajectory [3]. Recent data confirms SPY closed at $753 with a modest 0.054% gain, reinforcing the stability that keeps the price well below the implied strike [3]. A bot designed to scrape real-time quotes would flag the $751.88 price point against the strike, confirming the mathematical impossibility of a close above the threshold without a multi-percentage-point intraday spike that has not occurred in recent months [5].
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Bot UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Bot UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- 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.
Trade S&P 500 (SPY) closes above … on July 16? on Polymarket Bot UK
Live order book, 0% fees, USDC settlement in seconds.
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