Pronóstico: Fed Decision in September?

Platform comparison

Market context

The Federal Reserve’s September 2026 meeting will determine whether the upper bound of the target federal funds rate shifts, with the market currently pricing a 4% chance of no change. On Polymarket, this contract trades at 4% for the “no change” outcome, reflecting softened expectations for rate cuts after the June FOMC meeting where the Fed held rates steady at 3.5%–3.75%[2]. Traders using USDC on Polygon should note that conditional tokens will resolve based on the basis point change in the upper bound, rounded up to the nearest 25 if outside displayed options[1].

Historically, the Fed has rarely held rates unchanged for more than two consecutive meetings without a clear inflationary or employment trigger. In late 2025, three 25-basis-point cuts occurred in September, October, and December, but 2026 has seen a pause, with the dot plot now suggesting a possible hike rather than a cut[2][6]. The median expectation for the federal funds rate by end-2026 has risen to 3.8%, up from 3.4% in March, implying at least one increase this year[2]. This hawkish shift, confirmed by Kevin Warsh’s inaugural chairmanship, has pushed futures markets to price a hike by October[3].

Key catalysts include the September employment report, inflation data from the CPI and PCE, and any forward guidance from the Fed’s September 2026 meeting. A recent CNBC report notes that the Fed removed language suggesting future cuts and condensed its policy statement, reinforcing a tighter stance[2]. Traders should also monitor the CME FedWatch tool, which now shows nearly 100% probability of unchanged rates after the next meeting, and Bloomberg futures pricing a hike in October[2][3]. The Iran war’s impact on inflation spikes remains a critical dependency for the Fed’s decision path[2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Pronóstico: Fed Decision in September? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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 Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.