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kalshi historical data / economics / KXMCDSBIGMAC
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Price of a McDonald's Big Mac this month, tick by tick.
Kalshi series KXMCDSBIGMAC: order book and trades, 2026-10-05 → 2026-10-23.

The order-book and trade history of Kalshi's Price of a McDonald's Big Mac this month series (a new event every month): top of book on every change, the 25-level book on every change in YES terms, every trade with the taker's side, and Kalshi's own ticker, with exchange timestamps to the millisecond. Captured by us from Kalshi's websocket on two independent legs and checked against the exchange's own book snapshots.

19 days2026-10-05 → 2026-10-23 · every day since its first · ~473 kB per day · 9 MB on disk · 11 open markets
pull KXMCDSBIGMAC days →schemapricing

What a KXMCDSBIGMAC day contains

Four parquet files per day, every market of the series in each. Sizes are this series' own averages over its 19 days on disk.

Top of book (every change)kalshi_l1

Best YES bid and ask with sizes and the spread, one row whenever either changed, derived tick by tick from the rebuilt book: not Kalshi's conflated ticker.

~48 kB per KXMCDSBIGMAC day
Order book, 25 levels, every changekalshi_l2

The whole ladder after every book event, in YES terms (the NO bids become the asks, at their sizes), 25 levels a side: wide columns bid_px_1 … ask_sz_25, plus the exchange's own hourly snapshots. Each row is self-contained, so you can start reading mid-day.

~366 kB per KXMCDSBIGMAC day
Tradeskalshi_trades

Every trade: YES and NO price, size in contracts, the taker's side, block-trade flag, trade id.

~9 kB per KXMCDSBIGMAC day
Kalshi ticker (~1 s)kalshi_ticker

Kalshi's own ticker feed, about one update a second per market: last price, YES bid/ask with sizes, cumulative volume and open interest in contracts and dollars.

~50 kB per KXMCDSBIGMAC day

KXMCDSBIGMAC markets

The 11 closing nearest to now, from Kalshi's daily market list. Each is a row key (market_ticker) in every table, captured from the day it opens until it settles.

Will the average U.S. price of a McDonald's Big Mac for October 2026 be at least $6.08?: At least $6.08KXMCDSBIGMAC-26NOV02-T6.08closes 2026-11-02 04:59 UTC
Will the average U.S. price of a McDonald's Big Mac for October 2026 be at least $6.09?: At least $6.09KXMCDSBIGMAC-26NOV02-T6.09closes 2026-11-02 04:59 UTC
Will the average U.S. price of a McDonald's Big Mac for October 2026 be at least $6.10?: At least $6.10KXMCDSBIGMAC-26NOV02-T6.10closes 2026-11-02 04:59 UTC
Will the average U.S. price of a McDonald's Big Mac for October 2026 be at least $6.11?: At least $6.11KXMCDSBIGMAC-26NOV02-T6.11closes 2026-11-02 04:59 UTC
Will the average U.S. price of a McDonald's Big Mac for October 2026 be at least $6.12?: At least $6.12KXMCDSBIGMAC-26NOV02-T6.12closes 2026-11-02 04:59 UTC
Will the average U.S. price of a McDonald's Big Mac for October 2026 be at least $6.13?: At least $6.13KXMCDSBIGMAC-26NOV02-T6.13closes 2026-11-02 04:59 UTC
Will the average U.S. price of a McDonald's Big Mac for October 2026 be at least $6.14?: At least $6.14KXMCDSBIGMAC-26NOV02-T6.14closes 2026-11-02 04:59 UTC
Will the average U.S. price of a McDonald's Big Mac for October 2026 be at least $6.15?: At least $6.15KXMCDSBIGMAC-26NOV02-T6.15closes 2026-11-02 04:59 UTC
Will the average U.S. price of a McDonald's Big Mac for October 2026 be at least $6.16?: At least $6.16KXMCDSBIGMAC-26NOV02-T6.16closes 2026-11-02 04:59 UTC
Will the average U.S. price of a McDonald's Big Mac for October 2026 be at least $6.17?: At least $6.17KXMCDSBIGMAC-26NOV02-T6.17closes 2026-11-02 04:59 UTC
Will the average U.S. price of a McDonald's Big Mac for October 2026 be at least $6.18?: At least $6.18KXMCDSBIGMAC-26NOV02-T6.18closes 2026-11-02 04:59 UTC

Coverage notes for KXMCDSBIGMAC

  • First day on disk: 2026-10-05. The series' first book appeared then. New days are added daily.
  • Trades before 2026-09-27. Kalshi's historical API has no tick-level order book, so earlier KXMCDSBIGMAC trades are in the whole-exchange trades history (from 2021-06-30, one file a day): filter market_ticker to this series' markets, which start with KXMCDSBIGMAC-.
  • Every bundle ships a README with the schemas and, per day, how often the rebuilt book matched the exchange's own snapshots, for your exact range.

Pricing

A month of KXMCDSBIGMAC, every table, is about 14 MB. Bought for Kalshi, Starter ($29/mo) carries top of book, trades and the ticker for every series plus one series of your choice, KXMCDSBIGMAC if you like, at full book depth; L10 ($49/mo) carries every series' book at 10 levels and L25 ($99/mo) the full 25-level book. Each includes 7 days before you join and every day after. Any free account can pull 2026-10-07, any series, up to 1.0 GB.

Starter: KXMCDSBIGMAC at full depth →L10: every series at 10 levelsL25: every series, 25 levelsfree sample day

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