Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
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 S&P 500 tracker (SPY) is currently trading near $752–$754, just below its 52-week high of $760.40 and its all-time closing peak of $757.62 set in early June 2026[1][3][5]. With the market closing above any plausible strike for “July 16” already impossible today (as the day has ended), the 0% YES probability reflects the contract’s settled status rather than a forward-looking odds assessment.
Historically, SPY has rarely closed more than 1% above its intraday peak within a single session; the June 2026 all-time high of $757.62 was followed by a modest pullback, with the index closing June 24 at $732.97[5]. Comparable mid-year peaks in 2024 and 2025 also saw immediate retracements of 2–3% within weeks, suggesting that even if the strike were set lower, the market’s recent failure to sustain levels above $758 makes a “close above” outcome highly improbable[5].
Traders should monitor the Federal Reserve’s July 29–30 policy meeting and upcoming Q2 earnings from mega-cap tech firms, which could drive volatility into late July[1]. However, with SPY already 1.1% below its 52-week high and 3.7% below its 52-week peak, any meaningful upside close on July 16 would require an unprecedented intraday surge exceeding $8–$10, a move not seen in over a year[5]. Cross-platform lines on Kalshi and Polymarket both show 0% implied probability, aligning with analyst consensus that the settlement is effectively determined.
Methodology
This page reviews S&P 500 (SPY) closes above … on July 16? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.
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
- 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.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- 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.
Trade S&P 500 (SPY) closes above … on July 16? on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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