{"series":{"additional_prohibitions":["Persons who are employed by any of the Source Agencies are not permitted to trade on the Contract.","Persons who hold any material, non-public information on the Underlying are not permitted to trade on the Contract."],"category":"Economics","contract_terms_url":"https://assets.kalshi.com/contract_terms/YOYCPI.pdf","contract_url":"https://assets.kalshi.com/regulatory/product-certifications/YOYCPI.pdf","exchange_index":0,"fee_multiplier":1,"fee_type":"quadratic_with_maker_fees","frequency":"monthly","last_updated_ts":"2026-08-10T17:13:12.594241Z","product_metadata":{"scope":"Calendar"},"settlement_sources":[{"name":"Bureau of Labor Statistics","url":"https://www.bls.gov/cpi/"}],"tags":["Inflation"],"ticker":"KXCPIYOY","title":"Inflation"}}