Series

The common.predictions.kalshi_series table is one row per Kalshi series ticker. It carries the current fee schedule parameters from the series API plus title, category, and tags. Use this table to filter markets and trades by series tags, or to look up the current taker fee multiplier for a series. Historical fee rates in force on a given trade date live on kalshi_trades_enriched and kalshi_series_fee_changes, not here.

Kalshi’s published trade-fee schedule is taker M_taker × 0.07 × C × P × (1 − P) and maker M_maker × 0.0175 × C × P × (1 − P), with each side rounded up to the next $0.0001. fee_multiplier here is the current M_taker. Per-trade fees using the schedule in force on trade_date are on Trades Enriched.

Table Columns

Unique Key: ticker

Column Name	Data Type	Description
project	VARCHAR	Project identifier, always ‘kalshi’.
protocol	VARCHAR	Protocol identifier, always ‘kalshi’.
ticker	VARCHAR	Kalshi series ticker.
fee_type	VARCHAR	Fee formula: quadratic, quadratic_with_maker_fees, quadratic_with_combo_maker_fees, or margin_market_maker_program_fees.
fee_multiplier	FLOAT	Taker multiplier from the series API. Default 1.
last_updated_ts	TIMESTAMP_NTZ(9)	Series last_updated_ts from the API.
title	VARCHAR	Series title.
category	VARCHAR	Series category.
tags	VARIANT	Series topic tags from the API.
product_metadata	VARIANT	Optional product_metadata object from the series API. Sparse.
ingested_at	TIMESTAMP_NTZ(9)	First-seen ingestion timestamp.
updated_at	TIMESTAMP_NTZ(9)	Last payload update timestamp.
_extra_fields	VARIANT	Remaining series API extras.

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Table Columns