Pronóstico: MO-01 Democratic Primary Winner

Platform comparison

Market context

Polymarket prices the **MO-01 Democratic Primary Winner** contract at **66% YES** for the leading side, which means traders are assigning roughly two-thirds odds to the named Democrat prevailing in the district’s 4 August 2026 primary. On Polymarket, the position is held on **Polygon** and settles in **USDC** through conditional tokens, so the price is a live market view rather than a poll average.

The main comparison point is the 2024 MO-01 Democratic fight between **Cori Bush** and **Wesley Bell**, a reminder that this district can move quickly when fundraising, national attention, and turnout dynamics line up. Recent market snapshots have been narrow rather than unanimous: one trading feed showed Bell in the high 60s after a sharp move, while Polymarket’s own page has also shown Bush ahead at times, which is typical of a contested, news-sensitive primary rather than a settled race.[2][3] For traders, that history matters because a market near the mid-60s usually reflects a race that is competitive but has a clearer front-runner than the raw headline noise suggests.[1][2]

The main catalysts now are simple: candidate filings, any final campaign announcements, and the official primary result as reported by Democrat sources, with the market explicitly tied to the nominee rather than any later replacement on the ballot.[1][5] Because resolution can fall back to “Other” if no nominee is confirmed by 3 November 2026, the cleanest trading signals are the primary count itself and any late-breaking changes to the field, not post-primary substitution.

Sources: 1 · 2 · 3 · 4 · 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

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.

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.

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 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.