# Kalshi KXMLB — World Series Historical Data

> Canonical HTML (full statistics, contract grids, FAQ): https://cryptostruct.com/prediction-markets/kalshi-kxmlb · This document: https://cryptostruct.com/prediction-markets/kalshi-kxmlb.md · Buy: https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb

Every Kalshi “World Series” contract of the day — every trade print and the complete Level-2 book, captured co-located with nanosecond venue and receive timestamps. 223 trading days as day bundles, €1 per day, bought as a guest with instant download.

## Facts

- Venue: Kalshi (`kalshi`) · Category: Sports · Interval: event · Venue ticker: `KXMLB`
- Bundle id (MCP/HTTP `instrument_id` with `kind: "series_day"`): `9000000911` · Series key: `kalshi-kxmlb`
- Price: **€1.00 per bundle day** (every contract file of the series on that UTC day; tax-inclusive)
- Coverage: 223 days from 2026-03-04 to 2026-10-12 · 3.8 GB compressed in total · typically 28 files per day (up to 30)

## How to buy

- Web: https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb — pre-filled days: `https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=<from>..2026-10-12`
- MCP (https://cryptostruct.com/mcp): `get_bundle_coverage {series_key: "kalshi-kxmlb"}` → `create_checkout` with `{instrument_id: 9000000911, date: "<YYYY-MM-DD>", kind: "series_day"}`
- HTTP: `POST https://cryptostruct.com/api/quote` with the same items → guest checkout (https://cryptostruct.com/docs/api.md)
- Delivery: one ZIP per day (`&kind=series_day&zip=1` on the order download route), one resumable tar for multi-day ranges — contract in https://cryptostruct.com/llms.txt

## Last 30 recorded days

| UTC day | Files | Size (zstd) | Trades | Turnover (USD) | Buy |
| --- | --- | --- | --- | --- | --- |
| 2026-10-12 | 4 | 19 MB | 13,989 | $320,054 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-10-12 |
| 2026-10-11 | 5 | 7 MB | 9,455 | $216,450 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-10-11 |
| 2026-10-10 | 5 | 2 MB | 3,170 | $101,049 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-10-10 |
| 2026-10-09 | 5 | 6 MB | 8,828 | $177,487 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-10-09 |
| 2026-10-08 | 8 | 16 MB | 18,405 | $366,128 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-10-08 |
| 2026-10-07 | 8 | 16 MB | 12,607 | $181,901 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-10-07 |
| 2026-10-06 | 8 | 11 MB | 13,354 | $224,620 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-10-06 |
| 2026-10-05 | 8 | 16 MB | 11,534 | $172,708 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-10-05 |
| 2026-10-04 | 8 | 12 MB | 11,968 | $194,455 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-10-04 |
| 2026-10-03 | 8 | 10 MB | 10,964 | $205,177 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-10-03 |
| 2026-10-02 | 9 | 14 MB | 9,707 | $176,522 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-10-02 |
| 2026-10-01 | 12 | 19 MB | 10,875 | $208,289 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-10-01 |
| 2026-09-30 | 12 | 29 MB | 16,516 | $285,295 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-30 |
| 2026-09-29 | 12 | 16 MB | 11,686 | $780,790 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-29 |
| 2026-09-28 | 14 | 8 MB | 7,327 | $153,839 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-28 |
| 2026-09-27 | 14 | 8 MB | 5,252 | $104,829 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-27 |
| 2026-09-26 | 14 | 4 MB | 3,702 | $51,251 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-26 |
| 2026-09-25 | 14 | 6 MB | 5,257 | $82,840 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-25 |
| 2026-09-24 | 16 | 5 MB | 3,528 | $44,059 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-24 |
| 2026-09-23 | 17 | 8 MB | 3,928 | $56,909 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-23 |
| 2026-09-22 | 17 | 8 MB | 3,460 | $43,225 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-22 |
| 2026-09-21 | 22 | 7 MB | 3,838 | $38,950 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-21 |
| 2026-09-20 | 22 | 7 MB | 4,099 | $46,016 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-20 |
| 2026-09-19 | 22 | 8 MB | 4,300 | $41,698 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-19 |
| 2026-09-18 | 30 | 6 MB | 2,427 | $44,156 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-18 |
| 2026-09-17 | 30 | 6 MB | 2,551 | $30,252 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-17 |
| 2026-09-16 | 30 | 8 MB | 3,029 | $61,095 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-16 |
| 2026-09-15 | 30 | 5 MB | 2,575 | $47,284 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-15 |
| 2026-09-14 | 30 | 14 MB | 3,391 | $43,964 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-14 |
| 2026-09-13 | 30 | 27 MB | 3,270 | $35,545 | https://cryptostruct.com/shop/bundles?bundle=kalshi-kxmlb&d=2026-09-13 |

Trades and turnover are our own counts from the recorded feed; "—" = not yet computed. ⚠ marks a day with fewer files than the series typically has.

Terms: https://cryptostruct.com/terms.md · Data license: https://cryptostruct.com/license · Prediction-market hub: https://cryptostruct.com/prediction-markets
