Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
80% | 20% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
80% | 20% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Market context
SPY was trading around the high-740s on 22 July, with intraday quotes ranging from about $745 to $750 and a prior close near $748, so the market is effectively asking whether that late-summer strength can hold into the close and beat the previous session’s finish.[2][3] With the crowd-implied probability at 80% for **YES**, the pricing implies a strong expectation of a modest daily gain rather than a sharp move.
That level should be read against SPY’s recent run-up: the ETF’s last reported closing price in the historical data was $732.97 on 24 June 2026, while its June peak reached $757.62, above the current level but not by much.[5] In other words, the market is leaning on a continuation-of-trend view, not on a one-day breakout from an unusually depressed base, which makes the probability more plausible if broad US equity momentum and large-cap earnings sentiment stay intact.[4][5]
For a trader, the immediate catalyst is the close itself: whether SPY can finish above the most recent prior trading day’s close after intraday volatility and any late-session hedging flow. The main dependency is any last-minute macro or headline shock, but in the absence of a fresh scheduled political catalyst, the crowd appears to be leaning mainly on price action and the recent strength in the ETF rather than on campaign-style event risk.[1][2][3]
Methodology
This page tracks SPY (SPY) Up or Down on July 22? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.
Resolution & payout
Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.
Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.
FAQ
- What resolution source is used for elections?
- Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.
- Can prediction markets influence election outcomes?
- Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.
- Which platform has the deepest political liquidity?
- Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.
- How fast do political markets react to news?
- High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.
- Are political prediction markets legal in my country?
- It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.
Trade SPY (SPY) Up or Down on July 22? on Trump Prediction
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