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Infiniti Intelligence Hourly Briefing — Oct 15, 2026 · 7:09 PM ET

2 stories in this edition: Polymarket and Kalshi price the Fed's October decision 4 points apart · Colorado St. vs. Texas St. draws $340K in 24 hours, with Texas St. at 85c on Kalshi

Polymarket and Kalshi price the Fed's October decision 4 points apart

Quiet quarter-hour — no significant new platform headline in the last 15 minutes, so this fresh venue-gap analysis leads, in an economics category different from the…

October prices diverge across venues

Polymarket and Kalshi put the likelihood of an unchanged Fed rate in October four percentage points apart in a snapshot taken at 07:46 UTC on 15 October 2026, according to an analysis published on dev.to. The comparison used public API data collected through the prediction_markets tool in canli-mcp, with “probabilities” calculated as bid-ask midpoints rather than independent forecasts.

Polymarket’s unchanged-rate contract showed a 0.75 bid and 0.76 ask, implying 75.5%, versus Kalshi’s 0.71 bid and 0.72 ask, implying 71.5%. For a 25-basis-point increase, Polymarket quoted 0.24/0.25, compared with Kalshi’s 0.26/0.29.

The October event on Polymarket had recorded about $40.5 million in trading, while Kalshi’s had traded about 11.1 million contracts, each paying $1 if its outcome occurs. The four-point difference exceeded the quoted spreads of one to three cents. According to dev.to, differences in fees, trader eligibility and precise resolution terms could help explain why the venues’ prices remained apart.

A second discrepancy within Kalshi

Kalshi’s separate market for the Fed funds rate after the October meeting also differed from its main decision market. A contract for a rate above 4.00% quoted 0.22/0.25, giving a 23.5% midpoint. With the current target range at 3.75% to 4.00%, the analysis treated a move above 4.00% as requiring an increase. Yet hike outcomes in the main market totaled 28%: 27.5% for a 25-basis-point rise and 0.5% for a larger increase.

The threshold contract’s 0.25 best ask was below the 0.26 best bid for the 25-basis-point hike contract. But the threshold market had traded only about 0.37 million contracts, against 11.1 million in the main October event. The dev.to author had not checked the contracts’ exact settlement terms, leaving open whether their rules explain the discrepancy.

Trading activity was also lower in Polymarket’s later-dated markets: about $3.5 million for December and about $0.5 million for January. The analysis cautioned that a single trade could move prices in these smaller markets, making trading volume an important companion to any headline percentage.

What it means for prediction markets

  • Venue attribution matters: The same October hold question produced midpoint prices of 75.5% on Polymarket and 71.5% on Kalshi at the recorded snapshot.
  • A price gap is not automatically an equivalent-contract opportunity: Fees, access restrictions and settlement terms need to be distinguished from differences in trader expectations.
  • Market structure affects interpretation: Kalshi’s thinner threshold market differed from its main decision market, while Polymarket’s December and January markets had substantially less trading than October.
  • These are timestamped prices: The figures reflect bid-ask midpoints before fees and spread costs, not forecasts or necessarily executable prices.
  1. Dev (dev.to)http://dev.to/arhancanli/polymarket-and-kalshi-priced-the-feds-october-decision-4-points-apart-3cln

Colorado St. vs. Texas St. draws $340K in 24 hours, with Texas St. at 85c on Kalshi

DeFi Rate's live board, observed Oct. 15 at 6:21–6:52 PM ET, ranks the matchup 20th overall, with the Texas St. −11.5 spread at 59c and the Over 66.5 at 60c — a matchup…

Colorado St. vs. Texas St. drew $340K in trading over 24 hours and ranked 20th overall on DeFi Rate’s live board, according to the supplied summary of its data. Texas St. was priced at 85c on Kalshi.

Matchup pricing and snapshot timing

The board was observed on Oct. 15 at 6:21–6:52 PM ET, ahead of this report’s Oct. 15, 2026 · 7:09 PM ET publication timestamp. Those prices represent the observation window, rather than a confirmed update at publication.

The summary also put the Texas St. −11.5 spread at 59c and Over 66.5 at 60c. Both were priced below the Texas St. win contract, though they concern different outcomes: winning the matchup, covering the spread and exceeding the total.

The supplied source excerpt does not independently substantiate those matchup figures. It instead lists SEA Seahawks vs DEN Broncos as having traded on 3 venues in the last 24 hours, according to DeFi Rate. The Colorado St.–Texas St. figures therefore rest on the supplied live-board summary.

What it means for prediction markets

  • A clear favorite, but a closer spread market: Texas St.’s 85c win price contrasts with 59c for the −11.5 spread; the contracts measure distinct outcomes.
  • Volume needs context: The $340K figure covers the matchup’s reported 24-hour trading. The supplied summary does not break that total down by contract or venue.
  • Timing matters: The 60c Over 66.5 price and other listed prices belong to the Oct. 15 observation window, not a verified publication-time snapshot.
  1. Defirate (defirate.com)https://defirate.com/odds/

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