July Inflation US - Annual

Platform comparison

Market context

July’s US consumer-price reading for the 12 months to the end of the month is being priced as a **heavy underdog**, with the market assigning only **2%** to a YES outcome. That is a sharp contrast with the recent inflation backdrop: June CPI came in at **3.5% year on year**, down from **4.2%** in May, after a **0.4% monthly decline** driven by weaker gasoline prices, while core CPI held at **2.6%**. Reuters noted that the June print still left inflation “stubbornly” above the Fed’s target even after the drop, which is why consensus in this market is likely anchored much closer to the low-to-mid 3s than anything near 2%.[7][19]

For handicapper purposes, the favourite remains “inflation stays elevated”, and the value debate is really whether the crowd has overpaid for that view after the June drop. The Cleveland Fed’s nowcasting series and July prep notes pointed to headline inflation easing further into July, with some forecasts around the low-to-mid **3%** area, while Truflation’s July forecast also leaned higher than target but not near the market’s threshold for a YES-style collapse.[2][3][9] That leaves a contrarian angle only if one expects an unusually soft monthly CPI print in the July report, because getting the 12-month measure down into the market’s YES band would require a clean continuation of disinflation rather than a one-off energy-led dip.

The main catalyst is the **BLS CPI release for July 2026**, scheduled for **12 August 2026 at 8:30 am ET**, which will settle the market directly.[15][17] Traders will also watch any Fed communication and surrounding rate expectations, because the July Monetary Policy Report showed investors still expecting policy to be around **4%** by year-end 2026, implying inflation data can still move the rate path even if the headline annual print is lower than mid-year levels.[11] The key dependency is the monthly composition: another fall in energy would help, but sticky services inflation would keep the consensus side of the book in control.[8][9]

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

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win 2026 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.