Kalshi 1st Half Spread (KXMLS1HSPREAD) Data
Every Kalshi “1st Half Spread (KXMLS1HSPREAD)” contract of the day — every trade print and the complete Level-2 book, captured co-located with nanosecond venue and receive timestamps. 82 trading days as day bundles, €1 per day, bought as a guest with instant download.
1st Half Spread (KXMLS1HSPREAD) on Kalshi — activity
Trades and USD turnover summed over every contract of the series across 19 captured days to 2026-10-12, from the recorded tick data — the per-day averages divide by the captured days. Buy share, quoted spread (in contract price cents, 0..1 = 100 ¢), best-bid/ask depth and Level-2 update counts are turnover-weighted over the same window.
One purchase, the whole series for a day
A series-day bundle contains every 1st Half Spread (KXMLS1HSPREAD) contract that was listed on Kalshi on that UTC day — traded or not — 2 contract files on the latest covered day. Each file carries the full raw feed: every trade print with price, size and side, plus Level-2 order-book updates, in the same zstd-compressed schema as our crypto venues. Event contracts quote 0..1; turnover is USD-normalized.
Coverage runs July 2026 – present — 82 trading days, 100 MB compressed in total. A day typically holds 23 contract files (up to 60 on the busiest day, 21.4 MB). Pick individual days in the shop calendar for €1 each; delivery is an instant per-file download or one archive for the whole day.
1st Half Spread (KXMLS1HSPREAD) — development since capture
4,042 trades and $62.6K of USD turnover over 20 captured days since 2026-09-22 — record day 2026-10-11 with $33.4K, biggest single contract KXMLS1HSPREAD-26OCT10MIADCU-MIA2 (MIA vs DCU · 2026-10-10 · spread · MIA 2) (2026-10-11, $13.6K).
| Month | Days | Trades | Turnover (USD) | Avg / day | Contracts traded | L2 updates | vs previous month |
|---|---|---|---|---|---|---|---|
| Oct 2026 (month to date) | 11 | 2,107 | $41.7K | $3.8K | 59 | 516.4K | — |
| Sep 2026 | 9 | 1,935 | $20.9K | $2.3K | 47 | 148.4K | — |
Kalshi 1st Half Spread (KXMLS1HSPREAD) — trades and USD turnover summed per calendar month (UTC) over every contract, from our own daily statistics of the recorded tick data. Days = captured UTC days; a partial month shows no month-over-month change. Contracts traded and L2 (order-book) updates exist for days captured with the extended statistics.
MLS markets on other prediction venues
Polymarket, predict.fun also list MLS event markets — the same 30-day statistics side by side, each a day bundle of its own.
| Venue · series | Trades (30d) | Turnover (30d) | Avg spread | Top-1 depth | L2 updates / trade | Days archived | Price / day |
|---|---|---|---|---|---|---|---|
| Kalshi · 1st Half Spread (KXMLS1HSPREAD) (this page) | 4,042 | $62.6K | 9.23 ¢ | $3.3K | 160.4 | 82 | €1 |
| Polymarket · MLS Soccer | 131,869 | $11.4M | 2.33 ¢ | $7.9K | 1807.2 | 415 | €1 |
| predict.fun · MLS Soccer | 3,151 | $186.1K | 3.13 ¢ | $5.2K | 8375.2 | 13 | €1 |
30-day window of the statistics table, per venue's own series; spread in contract-price cents and best-bid/ask depth are turnover-weighted, L2 updates per trade = recorded order-book level updates ÷ trades. "—" = no statistics row in the window. Each venue settles its own contracts on its own rules — the series are comparable in subject, not interchangeable.
1st Half Spread (KXMLS1HSPREAD) — activity by weekday and hour
Sundays carry the most turnover, about $24.7K per day. Contracts listed to settle 00:00–00:59 UTC take 54 % of the turnover of the most traded contracts.
| Weekday (UTC) | Avg turnover / day | USD | Avg trades | Days |
|---|---|---|---|---|
| Monday | $53.77 | 8.33 | 3 | |
| Tuesday | $9.13 | 2 | 3 | |
| Wednesday | $787.63 | 82.67 | 3 | |
| Thursday | $503.63 | 71.33 | 3 | |
| Friday | $442.93 | 45.33 | 3 | |
| Saturday | $3.9K | 249.5 | 2 | |
| Sunday | $24.7K | 1.5K | 2 |
Kalshi 1st Half Spread (KXMLS1HSPREAD) — average USD turnover and trades per weekday over the captured days of the last 30, from our own daily statistics; weekdays without a captured day show —.
| Settles (UTC) | Turnover | USD | Share | Trades | Contracts |
|---|---|---|---|---|---|
| 00:00–00:59 | $66.1K | 53.7 % | 2,965 | 47 | |
| 01:00–01:59 | $16.6K | 13.4 % | 1,137 | 18 | |
| 02:00–02:59 | $3.7K | 3.0 % | 381 | 11 | |
| 03:00–03:59 | $16.9K | 13.7 % | 1,827 | 13 | |
| 18:00–18:59 | $523.18 | 0.4 % | 61 | 2 | |
| 19:00–19:59 | $2.0K | 1.6 % | 151 | 4 | |
| 20:00–20:59 | $80.74 | 0.1 % | 6 | 2 | |
| 21:00–21:59 | $16.1K | 13.1 % | 296 | 1 | |
| 22:00–22:59 | $1.2K | 1.0 % | 164 | 2 |
Kalshi 1st Half Spread (KXMLS1HSPREAD) — USD turnover and trades of the most traded contracts per day, grouped by the UTC hour in which the contract is listed to settle (the venue's close time), over the newest 30 captured days; from our tick archive.
1st Half Spread (KXMLS1HSPREAD) — last 30 days in the archive
Files, size, contracts traded, trades, USD turnover, buy share, quoted spread, top-of-book depth and order-book updates per UTC day, from the recorded tick data.
| UTC day | Files | Size | Traded | Trades | Turnover | Buy share | Avg spread | Top-1 depth | L2 updates | Notes | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-10-21 | 2 | 2.17 MB | — | ≈ 49 | ≈ $742.7 | — | — | — | — | Buy day → | |
| 2026-10-20 | 2 | 60.4 KB | — | ≈ 49 | ≈ $742.7 | — | — | — | — | Buy day → | |
| 2026-10-19 | 2 | 2.59 KB | — | ≈ 49 | ≈ $742.7 | — | — | — | — | Buy day → | |
| 2026-10-18 | 26 | 6.34 MB | 25 | 1,125 | $11.8K | 60 % | 9.43 ¢ | $257.81 | 237.1K | Buy day → | |
| 2026-10-17 | 30 | 2.93 MB | 17 | 622 | $20.4K | 45 % | 2.79 ¢ | $1.1K | 105.2K | Buy day → | |
| 2026-10-16 | 30 | 294 KB | 1 | 2 | $4.73 | 100 % | 3.22 ¢ | $11.17 | 7.6K | Buy day → | |
| 2026-10-15 | 34 | 21.4 MB | 30 | 2,128 | $27.9K | 59 % | 6.75 ¢ | $9.6K | 833.3K | Buy day → | |
| 2026-10-14 | 30 | 5.76 MB | 23 | 545 | $7.4K | 84 % | 1.83 ¢ | $433.78 | 215.1K | Buy day → | |
| 2026-10-13 | 30 | 561 KB | 0 | 0 | $0 | — | — | — | 16.4K | Buy day → | |
| 2026-10-12 | 2 | 104 KB | 1 | 3 | $65.68 | 0 % | 1.00 ¢ | — | 266 | Buy day → | |
| 2026-10-11 | 26 | 7.17 MB | 24 | 1,393 | $33.4K | 48 % | 11.2 ¢ | $4.6K | 253.4K | Buy day → | |
| 2026-10-10 | 30 | 3.93 MB | 25 | 381 | $5.9K | 75 % | 2.33 ¢ | $413.28 | 146.2K | Buy day → | |
| 2026-10-09 | 30 | 454 KB | 0 | 0 | $0 | — | — | — | 13.5K | Buy day → | |
| 2026-10-08 | 4 | 7.83 KB | 0 | 0 | $0 | — | — | — | 114 | Buy day → | |
| 2026-10-07 | 2 | 1.06 MB | 2 | 76 | $179.36 | 87 % | 17.1 ¢ | $85.47 | 44.8K | Buy day → | |
| 2026-10-06 | 2 | 138 KB | 1 | 6 | $27.39 | 100 % | 1.96 ¢ | $37.15 | 4.4K | Buy day → | |
| 2026-10-05 | 2 | 44.7 KB | 1 | 19 | $90.02 | 100 % | 1.18 ¢ | $22.38 | 1.4K | Buy day → | |
| 2026-10-02 | 2 | 436 KB | 2 | 132 | $1.3K | 78 % | 2.81 ¢ | $166.8 | 16.4K | Buy day → | |
| 2026-10-01 | 4 | 618 KB | 3 | 97 | $729.96 | 68 % | 5.35 ¢ | $214.03 | 19.6K | Buy day → | |
| 2026-09-30 | 4 | 509 KB | 2 | 143 | $1.8K | 92 % | 1.54 ¢ | $43.5 | 17.4K | Buy day → | |
| 2026-09-29 | 2 | 22.4 KB | 0 | 0 | $0 | — | — | — | 543 | Buy day → | |
| 2026-09-28 | 2 | 76.0 KB | 2 | 3 | $5.62 | 100 % | 6.00 ¢ | — | 1.5K | Buy day → | |
| 2026-09-27 | 28 | 1.71 MB | 26 | 1,521 | $16.0K | 84 % | 10.7 ¢ | $3.0K | 55.1K | Buy day → | |
| 2026-09-26 | 30 | 1.50 MB | 12 | 118 | $1.9K | 90 % | 2.22 ¢ | $122.68 | 42.8K | Buy day → | |
| 2026-09-25 | 30 | 546 KB | 1 | 4 | $52.74 | 100 % | 5.01 ¢ | $23.41 | 14.5K | Buy day → | |
| 2026-09-24 | 2 | 334 KB | 2 | 117 | $780.93 | 78 % | 1.91 ¢ | $77.31 | 12.1K | Buy day → | |
| 2026-09-23 | 2 | 118 KB | 2 | 29 | $399.98 | 100 % | 1.76 ¢ | $45.75 | 3.5K | Buy day → | |
| 2026-09-22 | 2 | 35.4 KB | 0 | 0 | $0 | — | — | — | 1.0K | Buy day → | |
| 2026-09-21 | 2 | 76.8 KB | — | — | — | — | — | — | — | Buy day → | |
| 2026-09-20 | 28 | 2.05 MB | — | — | — | — | — | — | — | Buy day → |
≈ marks an estimate: the average of the last 7 captured days of this series, scaled by that day's contract-file count. Statistics for a day are captured the next morning UTC and replace the estimate; days that predate the capture show —. Traded = contracts with at least one trade that day. Buy share = taker-buy side of USD turnover. Avg spread = quoted bid-ask spread in contract price cents (0..1 = 100 ¢), weighted by turnover across the day’s contracts. Top-1 depth = mean of the best bid and best ask notional in USD, weighted by turnover. L2 updates = order-book level updates recorded across all contracts of the day. Days captured before the extended statistics show —.
Most traded 1st Half Spread (KXMLS1HSPREAD) contracts by day
The ten contracts with the most USD turnover per UTC day — open, high, low, close, VWAP and the outcome implied by the last print; the six previous days fold out below.
The 10 most traded 1st Half Spread (KXMLS1HSPREAD) contracts on 2026-10-18 — 0 closed Yes (≥ 0.97), 9 closed No (≤ 0.03), 1 still open at the last print: 873 trades, $10.7K USD turnover. The busiest contract was KXMLS1HSPREAD-26OCT17ORLDCU-ORL2 with $2.5K turnover.
| Contract | Settles (UTC) | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | Spread | Top-1 depth | L2 updates | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KXMLS1HSPREAD-26OCT17ORLDCU-ORL2 ORL vs DCU · 2026-10-17 · spread · ORL 2 | 2026-10-18 00:35 | 0.350 | 0.920 | 0.010 | 0.010 | 0.616 | No | 70 | $2.5K | 58 % | 19.8 ¢ | $448.97 | 10.0K | buy file → |
| KXMLS1HSPREAD-26OCT17SJNSH-NSH2 SJ vs NSH · 2026-10-17 · spread · NSH 2 | 2026-10-18 03:35 | 0.140 | 0.180 | 0.010 | 0.010 | 0.111 | No | 191 | $1.7K | 58 % | 5.37 ¢ | $147.41 | 32.4K | buy file → |
| KXMLS1HSPREAD-26OCT17SKCRSL-RSL2 SKC vs RSL · 2026-10-17 · spread · RSL 2 | 2026-10-18 01:35 | 0.120 | 0.740 | 0.010 | 0.010 | 0.185 | No | 102 | $1.7K | 57 % | 13.5 ¢ | $233.55 | 13.9K | buy file → |
| KXMLS1HSPREAD-26OCT17PORCOL-POR2 POR vs COL · 2026-10-17 · spread · POR 2 | 2026-10-18 03:35 | 0.140 | 0.150 | 0.010 | 0.150 | 0.068 | open | 104 | $901.29 | 48 % | 4.50 ¢ | $122.66 | 37.9K | buy file → |
| KXMLS1HSPREAD-26OCT17SEAMTL-SEA2 SEA vs MTL · 2026-10-17 · spread · SEA 2 | 2026-10-18 03:35 | 0.230 | 0.250 | 0.010 | 0.010 | 0.096 | No | 49 | $842.31 | 71 % | 2.13 ¢ | $716.53 | 4.4K | buy file → |
| KXMLS1HSPREAD-26OCT17LAGSD-LAG2 LAG vs SD · 2026-10-17 · spread · LAG 2 | 2026-10-18 03:35 | 0.130 | 0.690 | 0.010 | 0.020 | 0.180 | No | 66 | $695.61 | 70 % | 3.83 ¢ | $232.67 | 28.0K | buy file → |
| KXMLS1HSPREAD-26OCT18CINCLB-CIN2 CIN vs CLB · 2026-10-18 · spread · CIN 2 | 2026-10-18 22:10 | 0.130 | 0.150 | 0.010 | 0.020 | 0.104 | No | 72 | $666.1 | 60 % | 2.28 ¢ | $64.75 | 11.1K | buy file → |
| KXMLS1HSPREAD-26OCT17SEAMTL-MTL2 SEA vs MTL · 2026-10-17 · spread · MTL 2 | 2026-10-18 03:35 | 0.030 | 0.640 | 0.010 | 0.010 | 0.086 | No | 45 | $626.07 | 57 % | 7.46 ¢ | $98.59 | 5.3K | buy file → |
| KXMLS1HSPREAD-26OCT18CINCLB-CLB2 CIN vs CLB · 2026-10-18 · spread · CLB 2 | 2026-10-18 22:10 | 0.100 | 0.230 | 0.010 | 0.010 | 0.107 | No | 92 | $567.32 | 67 % | 3.50 ¢ | $55.33 | 24.2K | buy file → |
| KXMLS1HSPREAD-26OCT17ATLMIA-MIA2 ATL vs MIA · 2026-10-17 · spread · MIA 2 | 2026-10-18 00:35 | 0.120 | 0.240 | 0.010 | 0.010 | 0.065 | No | 82 | $491.15 | 63 % | 9.01 ¢ | $126.33 | 7.9K | buy file → |
Prices quote 0..1 (probability of Yes). Open/high/low/close/VWAP are that UTC day’s trade prints per contract; the implied outcome reads the last print — ≥ 0.97 as Yes, ≤ 0.03 as No, anything between as still open — venues publish the official result. Buy share = taker-buy side of turnover; spread = the contract's turnover-weighted quoted bid-ask spread in cents, top-1 depth = mean best-bid/ask notional per side, L2 updates = order-book level updates recorded for the contract that day. “Settles” is the venue-listed close time of the contract where the venue publishes one (UTC).
2026-10-17 — 10 contracts, 600 trades, $20.3K turnover
The 10 most traded 1st Half Spread (KXMLS1HSPREAD) contracts on 2026-10-17 — 1 closed Yes (≥ 0.97), 2 closed No (≤ 0.03), 7 still open at the last print: 600 trades, $20.3K USD turnover. The busiest contract was KXMLS1HSPREAD-26OCT17MINSTL-STL2 with $16.1K turnover.
| Contract | Settles (UTC) | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | Spread | Top-1 depth | L2 updates | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KXMLS1HSPREAD-26OCT17MINSTL-STL2 MIN vs STL · 2026-10-17 · spread · STL 2 | 2026-10-17 21:36 | 0.100 | 0.990 | 0.090 | 0.990 | 0.777 | Yes | 296 | $16.1K | 34 % | 2.85 ¢ | $1.3K | 18.0K | buy file → |
| KXMLS1HSPREAD-26OCT17ATLMIA-MIA2 ATL vs MIA · 2026-10-17 · spread · MIA 2 | 2026-10-18 00:35 | 0.170 | 0.580 | 0.120 | 0.120 | 0.174 | open | 137 | $1.8K | 98 % | 2.12 ¢ | $53.48 | 3.7K | buy file → |
| KXMLS1HSPREAD-26OCT17PHICLT-PHI2 PHI vs CLT · 2026-10-17 · spread · PHI 2 | 2026-10-17 19:35 | 0.240 | 0.390 | 0.010 | 0.010 | 0.219 | No | 50 | $1.3K | 76 % | 3.15 ¢ | $702.27 | 11.0K | buy file → |
| KXMLS1HSPREAD-26OCT17ORLDCU-ORL2 ORL vs DCU · 2026-10-17 · spread · ORL 2 | 2026-10-18 00:35 | 0.200 | 0.380 | 0.150 | 0.350 | 0.206 | open | 18 | $336.36 | 54 % | 2.37 ¢ | $238.27 | 3.2K | buy file → |
| KXMLS1HSPREAD-26OCT17NYCLAFC-LAFC2 NYC vs LAFC · 2026-10-17 · spread · LAFC 2 | 2026-10-18 00:35 | 0.090 | 0.140 | 0.050 | 0.050 | 0.103 | open | 22 | $239.76 | 90 % | 2.24 ¢ | $33.06 | 3.5K | buy file → |
| KXMLS1HSPREAD-26OCT17NECHI-CHI2 NE vs CHI · 2026-10-17 · spread · CHI 2 | 2026-10-18 00:35 | 0.100 | 0.190 | 0.070 | 0.070 | 0.086 | open | 19 | $202.81 | 92 % | 2.33 ¢ | $39.73 | 16.9K | buy file → |
| KXMLS1HSPREAD-26OCT17PHICLT-CLT2 PHI vs CLT · 2026-10-17 · spread · CLT 2 | 2026-10-17 19:35 | 0.050 | 0.340 | 0.010 | 0.030 | 0.039 | No | 31 | $140.96 | 82 % | 4.92 ¢ | $37.61 | 15.9K | buy file → |
| KXMLS1HSPREAD-26OCT17NYRBTOR-NYRB2 NYRB vs TOR · 2026-10-17 · spread · NYRB 2 | 2026-10-18 00:35 | 0.180 | 0.190 | 0.040 | 0.040 | 0.146 | open | 7 | $125.94 | 30 % | 2.59 ¢ | $115.02 | 4.9K | buy file → |
| KXMLS1HSPREAD-26OCT17ATLMIA-ATL2 ATL vs MIA · 2026-10-17 · spread · ATL 2 | 2026-10-18 00:35 | 0.080 | 0.090 | 0.080 | 0.090 | 0.085 | open | 14 | $72.75 | 100 % | 2.04 ¢ | $59.31 | 2.4K | buy file → |
| KXMLS1HSPREAD-26OCT17NYRBTOR-TOR2 NYRB vs TOR · 2026-10-17 · spread · TOR 2 | 2026-10-18 00:35 | 0.070 | 0.210 | 0.070 | 0.160 | 0.118 | open | 6 | $49.69 | 95 % | 2.38 ¢ | $46.56 | 3.1K | buy file → |
2026-10-16 — 1 contract, 2 trades, $4.73 turnover
The 1 most traded 1st Half Spread (KXMLS1HSPREAD) contracts on 2026-10-16 — 0 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 1 still open at the last print: 2 trades, $4.73 USD turnover. The busiest contract was KXMLS1HSPREAD-26OCT17ATLMIA-MIA2 with $4.73 turnover.
| Contract | Settles (UTC) | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | Spread | Top-1 depth | L2 updates | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KXMLS1HSPREAD-26OCT17ATLMIA-MIA2 ATL vs MIA · 2026-10-17 · spread · MIA 2 | 2026-10-18 00:35 | 0.170 | 0.170 | 0.170 | 0.170 | 0.170 | open | 2 | $4.73 | 100 % | 3.22 ¢ | $11.17 | 370 | buy file → |
2026-10-15 — 10 contracts, 1,530 trades, $24.9K turnover
The 10 most traded 1st Half Spread (KXMLS1HSPREAD) contracts on 2026-10-15 — 4 closed Yes (≥ 0.97), 6 closed No (≤ 0.03): 1,530 trades, $24.9K USD turnover. The busiest contract was KXMLS1HSPREAD-26OCT14MIANYC-MIA2 with $9.8K turnover.
| Contract | Settles (UTC) | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | Spread | Top-1 depth | L2 updates | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KXMLS1HSPREAD-26OCT14MIANYC-MIA2 MIA vs NYC · 2026-10-14 · spread · MIA 2 | 2026-10-15 00:35 | 0.380 | 0.990 | 0.020 | 0.990 | 0.433 | Yes | 532 | $9.8K | 57 % | 10.5 ¢ | $17.0K | 34.5K | buy file → |
| KXMLS1HSPREAD-26OCT14NSHSKC-NSH2 NSH vs SKC · 2026-10-14 · spread · NSH 2 | 2026-10-15 01:35 | 0.340 | 0.990 | 0.280 | 0.990 | 0.707 | Yes | 158 | $5.7K | 56 % | 2.48 ¢ | $11.4K | 20.0K | buy file → |
| KXMLS1HSPREAD-26OCT14LAFCATX-LAFC2 LAFC vs ATX · 2026-10-14 · spread · LAFC 2 | 2026-10-15 03:35 | 0.210 | 0.410 | 0.010 | 0.010 | 0.139 | No | 189 | $1.8K | 84 % | 2.39 ¢ | $381.93 | 60.9K | buy file → |
| KXMLS1HSPREAD-26OCT14MTLATL-ATL2 MTL vs ATL · 2026-10-14 · spread · ATL 2 | 2026-10-15 00:35 | 0.100 | 0.990 | 0.060 | 0.990 | 0.604 | Yes | 82 | $1.7K | 53 % | 11.4 ¢ | $11.2K | 8.2K | buy file → |
| KXMLS1HSPREAD-26OCT14SDHOU-SD2 SD vs HOU · 2026-10-14 · spread · SD 2 | 2026-10-15 03:45 | 0.120 | 0.800 | 0.020 | 0.020 | 0.263 | No | 146 | $1.6K | 54 % | 2.36 ¢ | $165.19 | 35.2K | buy file → |
| KXMLS1HSPREAD-26OCT14LAGPOR-LAG2 LAG vs POR · 2026-10-14 · spread · LAG 2 | 2026-10-15 03:35 | 0.140 | 0.620 | 0.010 | 0.010 | 0.194 | No | 170 | $1.1K | 69 % | 3.02 ¢ | $100.09 | 66.3K | buy file → |
| KXMLS1HSPREAD-26OCT14DCUNYRB-DCU2 DCU vs NYRB · 2026-10-14 · spread · DCU 2 | 2026-10-15 00:35 | 0.220 | 0.990 | 0.020 | 0.990 | 0.432 | Yes | 86 | $1.1K | 64 % | 22.2 ¢ | $13.5K | 16.9K | buy file → |
| KXMLS1HSPREAD-26OCT14COLMIN-COL2 COL vs MIN · 2026-10-14 · spread · COL 2 | 2026-10-15 02:35 | 0.140 | 0.290 | 0.010 | 0.010 | 0.112 | No | 82 | $1.0K | 60 % | 2.60 ¢ | $85.9 | 51.5K | buy file → |
| KXMLS1HSPREAD-26OCT14STLVAN-STL2 STL vs VAN · 2026-10-14 · spread · STL 2 | 2026-10-15 01:45 | 0.120 | 0.120 | 0.010 | 0.010 | 0.082 | No | 56 | $526.77 | 73 % | 1.55 ¢ | $132.4 | 34.7K | buy file → |
| KXMLS1HSPREAD-26OCT14CLBCLT-CLT2 CLB vs CLT · 2026-10-14 · spread · CLT 2 | 2026-10-15 00:35 | 0.220 | 0.220 | 0.010 | 0.010 | 0.120 | No | 29 | $431 | 9 % | 2.20 ¢ | $164.47 | 31.8K | buy file → |
2026-10-14 — 10 contracts, 492 trades, $7.0K turnover
The 10 most traded 1st Half Spread (KXMLS1HSPREAD) contracts on 2026-10-14 — 0 closed Yes (≥ 0.97), 3 closed No (≤ 0.03), 7 still open at the last print: 492 trades, $7.0K USD turnover. The busiest contract was KXMLS1HSPREAD-26OCT14MIANYC-MIA2 with $3.8K turnover.
| Contract | Settles (UTC) | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | Spread | Top-1 depth | L2 updates | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KXMLS1HSPREAD-26OCT14MIANYC-MIA2 MIA vs NYC · 2026-10-14 · spread · MIA 2 | 2026-10-15 00:35 | 0.210 | 0.380 | 0.120 | 0.380 | 0.205 | open | 266 | $3.8K | 96 % | 1.71 ¢ | $619.49 | 13.4K | buy file → |
| KXMLS1HSPREAD-26OCT14NSHSKC-NSH2 NSH vs SKC · 2026-10-14 · spread · NSH 2 | 2026-10-15 01:35 | 0.310 | 0.340 | 0.310 | 0.340 | 0.317 | open | 17 | $692.41 | 100 % | 1.79 ¢ | $759.99 | 5.5K | buy file → |
| KXMLS1HSPREAD-26OCT14TORORL-TOR2 TOR vs ORL · 2026-10-14 · spread · TOR 2 | 2026-10-15 00:35 | 0.130 | 0.250 | 0.090 | 0.090 | 0.107 | open | 25 | $633.43 | 57 % | 2.14 ¢ | $126.58 | 6.8K | buy file → |
| KXMLS1HSPREAD-26OCT14CLBCLT-CLT2 CLB vs CLT · 2026-10-14 · spread · CLT 2 | 2026-10-15 00:35 | 0.070 | 0.220 | 0.050 | 0.220 | 0.114 | open | 25 | $626.67 | 36 % | 1.93 ¢ | $76.22 | 21.4K | buy file → |
| KXMLS1HSPREAD-26OCT14CLBCLT-CLB2 CLB vs CLT · 2026-10-14 · spread · CLB 2 | 2026-10-15 00:35 | 0.150 | 0.180 | 0.030 | 0.030 | 0.132 | No | 27 | $449.6 | 73 % | 2.09 ¢ | $139.1 | 9.1K | buy file → |
| KXMLS1HSPREAD-26OCT14DCUNYRB-DCU2 DCU vs NYRB · 2026-10-14 · spread · DCU 2 | 2026-10-15 00:35 | 0.120 | 0.230 | 0.090 | 0.220 | 0.126 | open | 12 | $186.91 | 66 % | 2.04 ¢ | $92.87 | 8.1K | buy file → |
| KXMLS1HSPREAD-26OCT14MIANYC-NYC2 MIA vs NYC · 2026-10-14 · spread · NYC 2 | 2026-10-15 00:35 | 0.050 | 0.170 | 0.020 | 0.030 | 0.044 | No | 56 | $156.89 | 89 % | 2.01 ¢ | $31.56 | 46.8K | buy file → |
| KXMLS1HSPREAD-26OCT14STLVAN-STL2 STL vs VAN · 2026-10-14 · spread · STL 2 | 2026-10-15 01:45 | 0.120 | 0.130 | 0.120 | 0.120 | 0.121 | open | 14 | $149.12 | 100 % | 1.41 ¢ | $102.4 | 2.0K | buy file → |
| KXMLS1HSPREAD-26OCT14TORORL-ORL2 TOR vs ORL · 2026-10-14 · spread · ORL 2 | 2026-10-15 00:35 | 0.100 | 0.110 | 0.050 | 0.080 | 0.073 | open | 17 | $141.07 | 39 % | 1.81 ¢ | $66.14 | 13.5K | buy file → |
| KXMLS1HSPREAD-26OCT14DCUNYRB-NYRB2 DCU vs NYRB · 2026-10-14 · spread · NYRB 2 | 2026-10-15 00:35 | 0.100 | 0.320 | 0.020 | 0.020 | 0.090 | No | 33 | $118.62 | 74 % | 2.03 ¢ | $67.35 | 7.3K | buy file → |
2026-10-12 — 1 contract, 3 trades, $65.68 turnover
The 1 most traded 1st Half Spread (KXMLS1HSPREAD) contracts on 2026-10-12 — 1 closed Yes (≥ 0.97), 0 closed No (≤ 0.03): 3 trades, $65.68 USD turnover. The busiest contract was KXMLS1HSPREAD-26OCT11STLLAG-STL2 with $65.68 turnover.
| Contract | Settles (UTC) | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | Spread | Top-1 depth | L2 updates | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KXMLS1HSPREAD-26OCT11STLLAG-STL2 STL vs LAG · 2026-10-11 · spread · STL 2 | 2026-10-12 00:15 | 0.990 | 0.990 | 0.990 | 0.990 | 0.990 | Yes | 3 | $65.68 | 0 % | 1.00 ¢ | — | 242 | buy file → |
2026-10-11 — 10 contracts, 1,112 trades, $32.3K turnover
The 10 most traded 1st Half Spread (KXMLS1HSPREAD) contracts on 2026-10-11 — 3 closed Yes (≥ 0.97), 7 closed No (≤ 0.03): 1,112 trades, $32.3K USD turnover. The busiest contract was KXMLS1HSPREAD-26OCT10MIADCU-MIA2 with $13.6K turnover.
| Contract | Settles (UTC) | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | Spread | Top-1 depth | L2 updates | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KXMLS1HSPREAD-26OCT10MIADCU-MIA2 MIA vs DCU · 2026-10-10 · spread · MIA 2 | 2026-10-11 00:35 | 0.420 | 0.990 | 0.230 | 0.990 | 0.719 | Yes | 286 | $13.6K | 38 % | 21.1 ¢ | $10.3K | 23.0K | buy file → |
| KXMLS1HSPREAD-26OCT11STLLAG-STL2 STL vs LAG · 2026-10-11 · spread · STL 2 | 2026-10-12 00:15 | 0.210 | 0.990 | 0.210 | 0.990 | 0.825 | Yes | 180 | $12.8K | 58 % | 2.05 ¢ | $480.66 | 21.7K | buy file → |
| KXMLS1HSPREAD-26OCT10SKCPOR-POR2 SKC vs POR · 2026-10-10 · spread · POR 2 | 2026-10-11 01:46 | 0.110 | 0.980 | 0.010 | 0.010 | 0.199 | No | 176 | $1.7K | 55 % | 7.50 ¢ | $233.71 | 17.7K | buy file → |
| KXMLS1HSPREAD-26OCT10ATXNSH-NSH2 ATX vs NSH · 2026-10-10 · spread · NSH 2 | 2026-10-11 01:36 | 0.120 | 0.280 | 0.020 | 0.020 | 0.137 | No | 123 | $1.2K | 54 % | 8.54 ¢ | $119.49 | 23.1K | buy file → |
| KXMLS1HSPREAD-26OCT10LAFCVAN-LAFC2 LAFC vs VAN · 2026-10-10 · spread · LAFC 2 | 2026-10-11 03:45 | 0.100 | 0.450 | 0.010 | 0.010 | 0.143 | No | 152 | $1.0K | 63 % | 2.15 ¢ | $116.87 | 22.4K | buy file → |
| KXMLS1HSPREAD-26OCT10NYRBSD-NYRB2 NYRB vs SD · 2026-10-10 · spread · NYRB 2 | 2026-10-11 00:45 | 0.640 | 0.990 | 0.680 | 0.990 | 0.913 | Yes | 49 | $607.52 | 77 % | 16.4 ¢ | $8.4K | 6.5K | buy file → |
| KXMLS1HSPREAD-26OCT10SKCPOR-SKC2 SKC vs POR · 2026-10-10 · spread · SKC 2 | 2026-10-11 01:46 | 0.100 | 0.110 | 0.010 | 0.010 | 0.062 | No | 41 | $591.89 | 74 % | 1.37 ¢ | $120.82 | 11.7K | buy file → |
| KXMLS1HSPREAD-26OCT10ORLCLB-ORL2 ORL vs CLB · 2026-10-10 · spread · ORL 2 | 2026-10-11 00:35 | 0.100 | 0.270 | 0.010 | 0.010 | 0.131 | No | 32 | $402.1 | 24 % | 17.3 ¢ | $186.46 | 6.1K | buy file → |
| KXMLS1HSPREAD-26OCT10MINHOU-HOU2 MIN vs HOU · 2026-10-10 · spread · HOU 2 | 2026-10-11 01:36 | 0.070 | 0.220 | 0.010 | 0.010 | 0.098 | No | 37 | $284.4 | 27 % | 12.0 ¢ | $66.82 | 22.7K | buy file → |
| KXMLS1HSPREAD-26OCT10NESEA-SEA2 NE vs SEA · 2026-10-10 · spread · SEA 2 | 2026-10-11 00:35 | 0.060 | 0.230 | 0.010 | 0.010 | 0.100 | No | 36 | $225.72 | 1 % | 18.7 ¢ | $104.56 | 7.3K | buy file → |
MLS on Kalshi — market types across the series
Across 14 MLS series on Kalshi, 19,697 contracts have been listed as of 2026-10-22: total / over-under 5,209 · period markets 2,793 · spread / handicap 1,971 · moneyline / winner 1,452 and others. Counted from every contract file of the family, not from the traded top-10.
| Market type | Contracts listed (all time) | Listed last 30 days | Share |
|---|---|---|---|
| total / over-under | 5,209 | 1,239 | 26 % |
| period markets | 2,793 | 1,170 | 14 % |
| spread / handicap | 1,971 | 317 | 10 % |
| moneyline / winner | 1,452 | 195 | 7 % |
| both teams to score | 454 | 65 | 2 % |
| player & team props | 15 | — | 0 % |
| other | 7,803 | 2,097 | 40 % |
| Total | 19,697 | 5,083 | 100 % |
Kalshi MLS series— market type read from each contract's venue identifier (ticker suffix on Kalshi, slug suffix on Polymarket, market description on predict.fun and OG.com), counted over every contract listed in the family as of 2026-10-22; “listed last 30 days” counts contracts whose venue settlement time falls in that window. Every one of them is in the day bundle of its day.
How a 1st Half Spread (KXMLS1HSPREAD) contract trades
On Kalshi, a 1st Half Spread (KXMLS1HSPREAD) contract trades for about 2.0 days from open to close, is listed roughly 8 min before it opens, and quotes in 1 ¢ price steps (0..1). Measured on the 10 contracts captured on 2026-10-18.
Try a 1st Half Spread (KXMLS1HSPREAD) contract file for free
The busiest contract of a settled day, byte-identical to the files in the paid bundle — download the native tick file, a CSV/Parquet export, or replay its order book in the browser.
KXMLS1HSPREAD-26OCT10MIADCU-MIA2 minute by minute — 2026-10-11
One-minute open/high/low/close, trades, USD turnover, quoted spread and top-of-book depth of the sample contract — the same 1-minute statistics every instrument’s analytics page offers.
KXMLS1HSPREAD-26OCT10MIADCU-MIA2 traded in 27 of the day’s minutes (00:00–00:30 UTC): 286 trades, $13.6K turnover, opening at 0.420, ranging 0.230–0.990 and closing at 0.990.
| Minute (UTC) | Open | High | Low | Close | Trades | Turnover | Spread | Top-1 bid / ask |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 0.420 | 0.400 | 0.400 | 0.400 | 3 | $55.66 | 1.00 ¢ | $300.64 / $124.4 |
| 00:01 | 0.400 | 0.390 | 0.390 | 0.390 | 1 | $19.18 | 11.2 ¢ | $277.46 / $172.79 |
| 00:03 | 0.390 | 0.390 | 0.380 | 0.380 | 5 | $263.98 | 8.21 ¢ | $247.67 / $185.66 |
| 00:04 | 0.380 | 0.390 | 0.380 | 0.380 | 5 | $287.15 | 5.22 ¢ | $271.66 / $110.88 |
| 00:05 | 0.380 | 0.370 | 0.360 | 0.360 | 5 | $101.75 | 3.87 ¢ | $37.41 / $121.27 |
| 00:06 | 0.360 | 0.360 | 0.360 | 0.360 | 5 | $186.03 | 2.47 ¢ | $81.6 / $250.77 |
| 00:08 | 0.360 | 0.350 | 0.340 | 0.340 | 3 | $23.53 | 34.2 ¢ | $28.75 / $1.38 |
| 00:09 | 0.340 | 0.340 | 0.340 | 0.340 | 6 | $29.92 | 30.9 ¢ | $19.55 / $55.64 |
| 00:11 | 0.340 | 0.310 | 0.300 | 0.310 | 2 | $48.93 | 1.85 ¢ | $209.97 / $262.63 |
| 00:12 | 0.310 | 0.290 | 0.290 | 0.290 | 1 | $4.35 | 1.86 ¢ | $247.75 / $226.6 |
| 00:13 | 0.290 | 0.300 | 0.300 | 0.300 | 3 | $14.3 | 1.19 ¢ | $164.14 / $90.24 |
| 00:15 | 0.300 | 0.270 | 0.270 | 0.270 | 2 | $4.76 | 6.00 ¢ | $0.21 / $270.92 |
| 00:16 | 0.270 | 0.260 | 0.250 | 0.250 | 7 | $211.58 | 6.76 ¢ | $43.96 / $100.12 |
| 00:17 | 0.250 | 0.260 | 0.230 | 0.230 | 22 | $644.73 | 3.98 ¢ | $67.33 / $61.56 |
| 00:18 | 0.230 | 0.880 | 0.290 | 0.880 | 26 | $421.57 | 40.7 ¢ | $28.95 / $18.02 |
| 00:19 | 0.880 | 0.940 | 0.880 | 0.920 | 38 | $1.1K | 18.8 ¢ | $188.35 / $88.6 |
| 00:20 | 0.920 | 0.920 | 0.900 | 0.920 | 18 | $1.3K | 1.16 ¢ | $659.96 / $144.27 |
| 00:21 | 0.920 | 0.920 | 0.910 | 0.910 | 25 | $3.5K | 1.08 ¢ | $503.52 / $459.26 |
| 00:22 | 0.910 | 0.920 | 0.920 | 0.920 | 10 | $336.39 | 3.66 ¢ | $391.93 / $381.44 |
| 00:23 | 0.920 | 0.940 | 0.920 | 0.930 | 12 | $736.26 | 2.26 ¢ | $399.54 / $329.31 |
| 00:24 | 0.930 | 0.960 | 0.940 | 0.950 | 9 | $339.19 | 1.55 ¢ | $159.29 / $124.93 |
| 00:25 | 0.950 | 0.960 | 0.920 | 0.950 | 21 | $1.3K | 1.38 ¢ | $192.6 / $89.49 |
| 00:26 | 0.950 | 0.960 | 0.950 | 0.960 | 14 | $915.32 | 1.24 ¢ | $209.35 / $190.24 |
| 00:27 | 0.960 | 0.980 | 0.960 | 0.980 | 12 | $653.44 | 1.74 ¢ | $159.15 / $301.12 |
| 00:28 | 0.980 | 0.980 | 0.970 | 0.980 | 3 | $46.4 | 1.03 ¢ | $209.98 / $414.11 |
| 00:29 | 0.980 | 0.600 | 0.430 | 0.430 | 9 | $7.69 | 38.7 ¢ | $14.75 / $88.03 |
| 00:30 | 0.430 | 0.990 | 0.950 | 0.990 | 19 | $1.0K | 62.2 ¢ | $20.1K / $29.45 |
1-minute statistics computed from the recorded ticks; minutes without a trade are omitted. Spread in contract price cents; top-1 depth = resting notional at the best bid / best ask. Every minute of every day is in the free analytics; the raw ticks are in the sample file above.
Build a 1st Half Spread (KXMLS1HSPREAD) model on this data
Every settled 1st Half Spread (KXMLS1HSPREAD) contract is a labelled example: the winner, the line or the total that cleared is the label, and the day bundle holds each contract's full order-book path and trade tape, nanosecond-stamped, from the first quote days before the event to the last print — the features for that label. The statistics on this page cover the most traded contracts per day; the bundle holds every contract listed on Kalshi that day.
Split by season and match day, never at random — the contracts of one slate share injuries, weather and the same public money, and a random split leaks the slate's results into training; walk forward over game days and purge the days whose contracts were still open. The sports-model guide works the closing-line benchmark, the pre-game line path and that split through.
Purchased data is for your own use — backtesting, research, analytics and training your own models, in-house or in your own products; the trained models and derived data you build from it are yours. The raw files and tick streams themselves may not be redistributed, resold or published. The full terms are on the data license page.
Why buy Kalshi 1st Half Spread (KXMLS1HSPREAD) data here
Four things every page on this site is built on — and the reason the numbers above exist at all.
We record everything
The complete public feed of each venue as it was published: every Level-2 snapshot and update at the venue's full book depth, every trade with its aggressor side, every quote, funding, mark-price and liquidation event — for every instrument the venue lists, every UTC day since we added the venue. Nothing sampled, no top-N cut, no on-demand capture.
Institutional grade
Captured co-located at the venue with the exchange timestamp and our receive timestamp in integer nanoseconds, an event-id chain that makes any gap visible, and one normalized schema across 35+ venues — the same capture our own high-frequency trading engine and enterprise feeds run on.
€1 per instrument-day
Any instrument-day is €1, series-day bundles start at €1 — no subscription, no minimum order, no tiers to unlock. Credit packs lower the effective price and never expire, and every venue has free full-day samples to test against first.
Self-service for everyone
Pick the days in the Data Shop, pay by card as a guest and download immediately — no sales call, no enterprise contract, no KYC. Coding agents buy the same files through the MCP server, and the free Agent Skill teaches them the format.
Agents: /llms.txt · MCP server /mcp · every page as markdown via Accept: text/markdown
Kalshi 1st Half Spread (KXMLS1HSPREAD) data — FAQ
What Kalshi 1st Half Spread (KXMLS1HSPREAD) data can I download?
Tick-by-tick trades and Level-2 order-book depth for every contract of the 1st Half Spread (KXMLS1HSPREAD) series on Kalshi (2 contract files on the latest day). One bundle = one UTC day of the whole series.
What is the Kalshi series ticker for 1st Half Spread (KXMLS1HSPREAD)?
KXMLS1HSPREAD — every contract of the series carries this prefix in its ticker (followed by the event date and strike). Files in a day bundle are named by the full contract ticker, so a bundle holds every KXMLS1HSPREAD-* contract listed that UTC day.
How far back does the 1st Half Spread (KXMLS1HSPREAD) data go?
Coverage runs July 2026 – present — 82 trading days in total.
What format are the Kalshi files in?
One zstd-compressed text file per contract per UTC day, in the same normalized schema as our crypto venues — see the market-data specification; free samples on the downloads page.
Can I get Kalshi 1st Half Spread (KXMLS1HSPREAD) data as CSV or Parquet?
Yes — trades export as gzipped CSV or Parquet at no extra cost, with integer microsecond UTC timestamps that load straight into pandas, polars or DuckDB. Kalshi records full order-book depth without a separate BBO stream, so book data ships in the native tick file — the free reader script converts it locally. See the formats overview.
How much does Kalshi 1st Half Spread (KXMLS1HSPREAD) historical data cost?
€1 per series-day bundle — every contract of the series for that day — no subscription, no minimum order; buy as a guest in the Data Shop and download immediately. Credit packs lower the effective price and never expire.
Do I need an account or a sales call?
No. Pick the 1st Half Spread (KXMLS1HSPREAD) series-days in the Data Shop, pay by card as a guest and download immediately — no subscription, no minimum order, no KYC, no enterprise contract, no sales call. Coding agents buy the same bundles through the MCP server.
How is the Kalshi 1st Half Spread (KXMLS1HSPREAD) data captured?
Co-located at the venue, message by message: every Level-2 update and every trade print carries the exchange timestamp and our receive timestamp in integer nanoseconds, an event-id chain makes any gap visible, and one normalized schema across 35+ venues means a parser written for Binance reads these files unchanged. It is the same capture our own high-frequency trading engine runs on — nothing sampled, no top-N cut.
How many 1st Half Spread (KXMLS1HSPREAD) contracts trade per day on Kalshi?
On average 6 1st Half Spread (KXMLS1HSPREAD) contracts had at least one trade per UTC day over the last 19 captured days on Kalshi, with about 34.1K order-book level updates recorded per day. A day bundle contains every contract file of the series for that day.
How liquid are Kalshi 1st Half Spread (KXMLS1HSPREAD) contracts?
Over the last 19 captured days, the turnover-weighted quoted bid-ask spread was 9.23 ¢ (contracts quote 0..1 = 100 ¢), the mean best-bid/best-ask notional was about $3.3K per side, 64 % of USD turnover was taker-buy. These figures are computed from the recorded Level-2 order books and trade prints — the same data in the day bundles.
What was the most traded 1st Half Spread (KXMLS1HSPREAD) contract on 2026-10-18?
KXMLS1HSPREAD-26OCT17ORLDCU-ORL2 (ORL vs DCU · 2026-10-17 · spread · ORL 2) — $2.5K USD turnover over 70 trades on Kalshi. The 10 most traded contracts of the series did 873 trades and $10.7K that UTC day. Open, high, low, close and VWAP per contract are listed on this page; the tick-level data is in the day bundle.
What was the busiest 1st Half Spread (KXMLS1HSPREAD) trading day on Kalshi?
2026-10-11, with $33.4K of USD turnover over 1,393 trades across every 1st Half Spread (KXMLS1HSPREAD) contract of the day; the busiest full month was Sep 2026 at $20.9K. Since our statistics began on 2026-09-22 the series has recorded 4,042 trades and $62.6K over 20 captured days; the single biggest contract was KXMLS1HSPREAD-26OCT10MIADCU-MIA2 (MIA vs DCU · 2026-10-10 · spread · MIA 2) on 2026-10-11 with $13.6K. Any of these days is a downloadable bundle.
When do 1st Half Spread (KXMLS1HSPREAD) contracts settle?
Contracts listed to settle between 00:00 and 00:59 UTC carried 54 % of the USD turnover of the most traded 1st Half Spread (KXMLS1HSPREAD) contracts per day over the newest 30 captured days on Kalshi. The hour-by-hour profile on this page shows the whole day; every contract file carries nanosecond exchange timestamps, so any finer profile can be computed from the bundle.
Which market types does Kalshi list for MLS?
Kalshi lists each market type as its own series — 14 MLS series with 19,697 contracts listed as of 2026-10-22: total / over-under 5,209 · period markets 2,793 · spread / handicap 1,971 · moneyline / winner 1,452 · both teams to score 454. 1st Half Spread (KXMLS1HSPREAD) is one of them; a series-day bundle covers one series, so buy the same day across the sibling series you need in the shop.
Which weekday does Kalshi 1st Half Spread (KXMLS1HSPREAD) trade most?
Sundays — about $24.7K of USD turnover per Sunday and 79 % of the series' turnover over the 19 captured days to 2026-10-12 on Kalshi, summed from every trade print of the series' contracts. The weekday profile on this page shows all seven days; the day bundles carry the full tape behind them.
How much of 1st Half Spread (KXMLS1HSPREAD) turnover trades on game day?
76 % — across 56 settled 1st Half Spread (KXMLS1HSPREAD) contracts between 2026-09-23 and 2026-10-18 on Kalshi, 76 % of their USD turnover printed on the UTC day the contract settled and 24 % on the days before, summed from every trade of the most traded contracts per day. The pre-event share is where line-movement features live; the day bundles hold both.
How long before an event do 1st Half Spread (KXMLS1HSPREAD) contracts trade?
A median of 1 captured trading day per contract, settlement day included (a quarter traded 2 days or more) — across 56 settled 1st Half Spread (KXMLS1HSPREAD) contracts to 2026-10-18 on Kalshi, counting the UTC days a contract ranked among the series' most traded. Buy those days as a range (/shop/bundles?bundle=kalshi-kxmls1hspread&d=<from>..<to>) to get the whole pre-event path of each contract.