September CPI monthly gain priced near 0.5 percent

Name: September CPI monthly gain priced near 0.5 percent
Creator: ClearMarket
Published: 2026-10-09T00:00:00.000Z
License: https://creativecommons.org/licenses/by/4.0/

Kalshi ladder

record: CMSIG2026100903 | category: pre-event-pricing | target: CM-EVT-F9NPW9F1V9 | published: 2026-10-09

4-bullet brief | narrative

The prediction market ladder implies a September CPI monthly gain in the 0.5-0.6% range: 59% above 0.5%, but only 21% above 0.6%.
August PCE cooling more than expected has not pulled the ladder's implied CPI print lower; the market still prices a firm monthly gain consistent with above-target inflation.
October 14 CPI is the next live catalyst; the 59%-to-21% drop between the 0.5% and 0.6% strikes marks the distribution's sharp upper tail.
Resolution is via the official CPI release; the named resolution source is not further specified, but the standard resolver is the Bureau of Labor Statistics CPI report.

atomic briefs | structured for retrieval

[01] news_event

significance

surfaced in the daily Exa news-cycle scan; mechanically matched to an active kalshi market

story: The Fed's preferred inflation gauge cooled more than expected in August but remained well above target, keeping price-pressure concerns alive ahead of October 14 CPI.exa_search → Press Room · as_of 2026-10-10T07:47:51+00:00
publisher: Press Room
published_at: 2026-10-09T00:00:00.000Z
source_url: https://fundingconceptpros.com/feds-favored-inflation-gauge-cooled-in-august-but-remained-elevated/

[02] pm_response

interp: Ladder distribution provided; market-implied range read from strike probabilities at 0.5% and 0.6% thresholds.llm_judge_cm_signal_v1

evaluation

News-cycle wires publish on coverage, not editorial selection — the day’s top stories matched to the prediction markets pricing them, so nothing is cherry-picked.

judge_engine: none — deterministic news-cycle scan
judge_verdict: auto_published
judge_confidence: n/a — no judge gate (deterministic publishing)
prompt_template: news_cycle_v1 github · auditable
match_method: entity_slug_match (mechanical)

citation graph

Every wire traces back to the ClearMarket event it is built on, and out to each venue’s own market page — so any figure here can be verified at its source.

internal

cm_event: /events/kxcpi-26sep/

external

venue_a: https://kalshi.com/markets/KXCPI-26SEP-T0.6

programmatic access · four surfaces, same payload

AI grounded search reads embedded JSON-LD in HTML. Developers query REST. Agentic AI clients (Claude Desktop, Cursor) call MCP tools. AI crawlers index via /llms.txt. Same canonical record at every surface.

HTML	browsers, AI grounded search, crawlers (contains embedded JSON-LD `@type: Dataset`)	`https://clearmarket.fyi/signals/sept-cpi-m-m-seen-0-5-0-6-prediction-market-ladder-2026-10-09/`
JSON	REST API for developers	`https://clearmarket.fyi/signals/sept-cpi-m-m-seen-0-5-0-6-prediction-market-ladder-2026-10-09.json`
MCP	agentic AI tool call (Claude Desktop, Cursor, Continue)	`clearmarket.get_signal("sept-cpi-m-m-seen-0-5-0-6-prediction-market-ladder-2026-10-09")`
AGENT	AI crawler discovery index	`/llms.txt`

 PM data: platform APIs (hourly refresh). News context: retrieved with source citations. Editorial judgment: LLM judge with prompt template versioned per wire type. Per-claim provenance inline above; full per-field provenance map at the JSON endpoint under field_provenance.
  raw JSON record · same payload returned by REST endpoint
 {
  "$schema": "https://clearmarket.fyi/schema/signal/v1.json",
  "provenance_version": "0.2.0",
  "record_id": "CMSIG2026100903",
  "published_at": "2026-10-09T00:00:00.000Z",
  "detection": "news_cycle",
  "category_tag": "PRE_EVENT_PRICING",
  "secondary_tags": [],
  "pre_news_classification": "pre_news",
  "target_event_id": "CM-EVT-F9NPW9F1V9",
  "target_event_slug": "kxcpi-26sep",
  "event_question": "September 2026 CPI month-over-month change",
  "bullets": [
    "The prediction market ladder implies a September CPI monthly gain in the 0.5-0.6% range: 59% above 0.5%, but only 21% above 0.6%.",
    "August PCE cooling more than expected has not pulled the ladder's implied CPI print lower; the market still prices a firm monthly gain consistent with above-target inflation.",
    "October 14 CPI is the next live catalyst; the 59%-to-21% drop between the 0.5% and 0.6% strikes marks the distribution's sharp upper tail.",
    "Resolution is via the official CPI release; the named resolution source is not further specified, but the standard resolver is the Bureau of Labor Statistics CPI report."
  ],
  "atomic_claims": [
    {
      "type": "news_event",
      "field_provenance": {
        "story": {
          "tier": "mediated",
          "method": "exa_search",
          "source": "Press Room",
          "source_url": "https://fundingconceptpros.com/feds-favored-inflation-gauge-cooled-in-august-but-remained-elevated/",
          "retrieved_at": "2026-10-10T07:47:51+00:00"
        }
      },
      "significance": {
        "threshold": 5,
        "threshold_unit": "rank",
        "passed": true,
        "reason": "surfaced in the daily Exa news-cycle scan; mechanically matched to an active kalshi market"
      },
      "story": "The Fed's preferred inflation gauge cooled more than expected in August but remained well above target, keeping price-pressure concerns alive ahead of October 14 CPI.",
      "publisher": "Press Room",
      "published_at": "2026-10-09T00:00:00.000Z",
      "source_url": "https://fundingconceptpros.com/feds-favored-inflation-gauge-cooled-in-august-but-remained-elevated/"
    },
    {
      "type": "pm_response",
      "field_provenance": {
        "notes": {
          "tier": "editorial",
          "method": "llm_judge_cm_signal_v1"
        }
      },
      "notes": "Ladder distribution provided; market-implied range read from strike probabilities at 0.5% and 0.6% thresholds."
    }
  ],
  "evaluation": {
    "judge_engine": "none — deterministic news-cycle scan",
    "judge_verdict": "auto_published",
    "judge_confidence": null,
    "prompt_template": "news_cycle_v1"
  },
  "citations": {
    "internal": {
      "cm_event": "/events/kxcpi-26sep/",
      "related": []
    },
    "external": {
      "venue_a": "https://kalshi.com/markets/KXCPI-26SEP-T0.6",
      "venue_b": null,
      "benchmark": null
    }
  },
  "sources": [
    {
      "label": "Press Room: Fed's favored inflation gauge cooled in August but remained elevated |",
      "url": "https://fundingconceptpros.com/feds-favored-inflation-gauge-cooled-in-august-but-remained-elevated/",
      "published_at": "2026-10-09T00:00:00.000Z",
      "retrieved_at": "2026-10-10T07:47:51+00:00"
    }
  ],
  "field_provenance": {
    "pm_data": "kalshi_api",
    "news_context": "exa_search",
    "editorial_judgment": "cm_signal_llm_judge"
  }
}
 
   PROVENANCE PROTOCOL v0.2 · [direct] venue api · [mediated] grounded web fetch + source url · [derived] computed from listed inputs · [editorial] versioned llm judgment · full spec /schema/provenance/v1

record CMSIG2026100903 published 2026-10-09T00:00:00.000Z signature sha256-d3767be44f4… ← underlying event all signals →