Research note · September 21, 2026 · 13:38 UTC
Near even in October: Kalshi names maintain rate; Polymarket names a 25 bp hike
Answer. When checked at 13:38 UTC on September 21, the direct Kalshi October event page displayed 50% for “Fed maintains rate” and 49% for “Hike 25bps.” The direct Polymarket October contract displayed 50% for a 25 bp increase and 49% for no change. Compared with the pool’s September 20, 19:08 UTC direct check, Kalshi’s maintain-rate row rose 5 percentage points and its hike row fell 7; Polymarket’s hike row fell 6 and no change rose 5. The two pages are separate event-contract readings, not a consensus, a futures-implied estimate, or a Federal Reserve forecast.
Both pages moved closer to even
Kalshi’s named maintain-rate row now leads its displayed 25 bp-hike row by 1 point. Its Cut 25bps row was below 1%, and the page indicated two more outcomes. Polymarket’s named 25 bp-increase row leads its no-change row by 1 point; smaller outcomes appear separately. The pool records the displayed rows and does not make a full distribution from hidden or rounded values.
The access gap measures movement, not a cause
These changes are differences between the two recorded pool access times. The direct pages do not provide a separate reliable quote time, so 13:38 UTC is the pool access time. The gap is not a continuous price path, and it does not show why either venue moved, who traded, or whether one development explains both pages.
Rules and method remain distinct
Polymarket’s contract rule defines the outcome by the change in the upper bound of the target federal funds range against the level before the October meeting and names the October FOMC statement as the resolution source. Its adjacent experimental AI-generated narrative is excluded from this observation. Kalshi’s named headings describe a separate event series. The similar percentages do not authorize an average or a cross-venue spread.
“Priced in” is a different asset question
A completed September decision, an October-only contract, and a later asset move are three different questions. For an asset story, name the asset and horizon, then require a time-matched price record and competing explanations. This check has neither, so it does not turn a near-even rate row into a stock, bond, or portfolio call.
CME remains a separate, unfilled comparison
CME FedWatch says it tracks probabilities implied by 30-Day Fed Funds futures. Its direct live October outcome grid was not readable in this check. The pool therefore does not substitute a third-party number or calculate a spread against either event contract.
Next official times
The BEA schedule lists U.S. International Transactions and Investment Position for September 24 at 08:30 ET and Personal Income and Outlays for September 30 at 08:30 ET. The BLS calendar lists August Job Openings and Labor Turnover Survey for September 29 at 10:00 ET. The Federal Reserve October calendar lists minutes of the September 15–16 meeting at 14:00 ET on October 7, the October 27–28 meeting, and the October 28 press conference at 14:30 ET. These are future information times, not explanations of today’s readings.