Kalshi KXSERIEASPREAD — Serie A Spread Data
Every Kalshi “Serie A Spread” contract of the day — every trade print and the complete Level-2 book, captured co-located with nanosecond venue and receive timestamps. 124 trading days as day bundles, €1 per day, bought as a guest with instant download.
Serie A Spread on Kalshi — activity
Trades and USD turnover summed over every contract of the series across 18 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 Serie A Spread contract that was listed on Kalshi on that UTC day — traded or not — 50 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 March 2026 – present — 124 trading days, 627 MB compressed in total. A day typically holds 43 contract files (up to 80 on the busiest day, 29.1 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.
Serie A Spread — development since capture
58,201 trades and $2.0M of USD turnover over 47 captured days since 2026-08-15 — record day 2026-09-14 with $481.8K, biggest single contract KXSERIEASPREAD-26SEP14INTUDI-INT2 (2026-09-14, $178.9K).
| Month | Days | Trades | Turnover (USD) | Avg / day | Contracts traded | L2 updates | vs previous month |
|---|---|---|---|---|---|---|---|
| Oct 2026 (month to date) | 10 | 11,670 | $359.6K | $36.0K | 90 | 3.9M | — |
| Sep 2026 | 20 | 29,200 | $841.4K | $42.1K | 448 | 6.2M | +11.6 % |
| Aug 2026 | 17 | 17,331 | $753.8K | $44.3K | 266 | 3.8M | — |
Kalshi Serie A Spread — 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.
Serie A Spread — activity by weekday
Mondays carry the most turnover, about $218.5K per day.
| Weekday (UTC) | Avg turnover / day | USD | Avg trades | Days |
|---|---|---|---|---|
| Monday | $218.5K | 5.3K | 3 | |
| Tuesday | $686.19 | 17.5 | 2 | |
| Wednesday | $114.25 | 24 | 2 | |
| Thursday | $277.17 | 16.5 | 2 | |
| Friday | $6.5K | 423 | 2 | |
| Saturday | $57.8K | 1.7K | 3 | |
| Sunday | $51.8K | 2.5K | 4 |
Kalshi Serie A Spread — 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 —.
Serie A Spread — 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-10-12 | 50 | 25.1 MB | 14 | 4,435 | $173.7K | 66 % | 1.23 ¢ | $7.2K | 1.0M | Buy day → | |
| 2026-10-11 | 62 | 29.1 MB | 27 | 4,032 | $76.6K | 69 % | 2.26 ¢ | $2.7K | 1.2M | Buy day → | |
| 2026-10-10 | 62 | 21.0 MB | 25 | 3,147 | $108.7K | 57 % | 2.29 ¢ | $5.1K | 815.0K | Buy day → | |
| 2026-10-09 | 44 | 4.21 MB | 9 | 30 | $288.05 | 82 % | 1.33 ¢ | $1.9K | 141.5K | Buy day → | |
| 2026-10-08 | 40 | 4.48 MB | 4 | 9 | $53.93 | 99 % | 2.46 ¢ | $1.0K | 157.2K | Buy day → | |
| 2026-10-07 | 40 | 5.80 MB | 4 | 6 | $19.47 | 76 % | 1.62 ¢ | $393.46 | 210.8K | Buy day → | |
| 2026-10-06 | 40 | 5.96 MB | 3 | 4 | $28.57 | 100 % | 2.39 ¢ | $217.71 | 218.2K | Buy day → | |
| 2026-10-05 | 40 | 3.84 MB | 2 | 4 | $35.98 | 100 % | 2.23 ¢ | $220.46 | 138.9K | Buy day → | |
| 2026-10-04 | 32 | 2.46 MB | 1 | 2 | $3.13 | 0 % | 98.0 ¢ | $57.02 | 88.9K | Buy day → | |
| 2026-10-03 | 12 | 427 KB | 1 | 1 | $3 | 0 % | 20.2 ¢ | $5.23 | 14.1K | Buy day → | |
| 2026-09-20 | 24 | 22.0 MB | 23 | 4,140 | $88.6K | 62 % | 1.67 ¢ | $6.4K | 842.3K | Buy day → | |
| 2026-09-19 | 38 | 8.75 MB | 27 | 2,041 | $64.6K | 62 % | 1.59 ¢ | $1.7K | 306.8K | Buy day → | |
| 2026-09-18 | 41 | 7.20 MB | 19 | 816 | $12.8K | 50 % | 1.28 ¢ | $1.3K | 205.5K | Buy day → | |
| 2026-09-17 | 40 | 3.35 MB | 8 | 24 | $500.41 | 100 % | 1.81 ¢ | $626.66 | 92.1K | Buy day → | |
| 2026-09-16 | 40 | 4.74 MB | 14 | 42 | $209.02 | 95 % | 1.44 ¢ | $229.44 | 155.0K | Buy day → | |
| 2026-09-15 | 40 | 3.42 MB | 9 | 31 | $1.3K | 100 % | 1.29 ¢ | $217.74 | 114.2K | Buy day → | |
| 2026-09-14 | 57 | 27.4 MB | 32 | 11,490 | $481.8K | 64 % | 1.39 ¢ | $8.2K | 1.0M | Buy day → | |
| 2026-09-13 | 65 | 12.4 MB | 39 | 1,981 | $41.9K | 74 % | 1.53 ¢ | $1.3K | 443.2K | Buy day → | |
| 2026-09-12 | 57 | 9.15 MB | 35 | 1,081 | $17.9K | 49 % | 1.43 ¢ | $1.1K | 209.4K | Buy day → | |
| 2026-09-11 | 45 | 9.00 MB | 26 | 1,178 | $12.6K | 69 % | 1.32 ¢ | $1.6K | 215.4K | Buy day → | |
| 2026-09-10 | 40 | 2.23 MB | 16 | 80 | $380.63 | 100 % | 3.13 ¢ | $127.66 | 67.0K | Buy day → | |
| 2026-09-09 | 40 | 6.54 MB | 19 | 75 | $1.5K | 100 % | 2.94 ¢ | $218.45 | 232.9K | Buy day → | |
| 2026-09-08 | 40 | 2.49 MB | 26 | 88 | $2.0K | 100 % | 2.61 ¢ | $305.33 | 84.3K | Buy day → | |
| 2026-09-07 | 48 | 9.48 MB | 22 | 1,652 | $12.9K | 74 % | 1.92 ¢ | $1.4K | 352.2K | Buy day → | |
| 2026-09-06 | 53 | 14.0 MB | 34 | 1,658 | $32.3K | 80 % | 3.24 ¢ | $1.2K | 510.6K | Buy day → | |
| 2026-09-05 | 52 | 11.8 MB | 22 | 1,751 | $32.9K | 79 % | 2.02 ¢ | $1.5K | 420.5K | Buy day → | |
| 2026-09-04 | 45 | 7.79 MB | 19 | 906 | $34.6K | 55 % | 1.45 ¢ | $3.6K | 275.2K | Buy day → | |
| 2026-09-03 | 40 | 4.02 MB | 17 | 63 | $1.0K | 96 % | 2.16 ¢ | $472.12 | 130.9K | Buy day → | |
| 2026-09-02 | 40 | 6.60 MB | 20 | 39 | $260.09 | 71 % | 1.32 ¢ | $293.8 | 236.5K | Buy day → | |
| 2026-09-01 | 40 | 8.38 MB | 21 | 64 | $1.3K | 86 % | 1.20 ¢ | $530.13 | 304.7K | Buy day → |
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 Serie A Spread 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 Serie A Spread contracts on 2026-10-12 — 1 closed Yes (≥ 0.97), 8 closed No (≤ 0.03), 1 still open at the last print: 4,427 trades, $173.7K USD turnover. The busiest contract was KXSERIEASPREAD-26OCT12ATAVEN-ATA2 with $98.5K turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXSERIEASPREAD-26OCT12ATAVEN-ATA2 | 0.410 | 0.990 | 0.360 | 0.990 | 0.695 | Yes | 1,435 | $98.5K | 60 % | buy file → |
| KXSERIEASPREAD-26OCT12ATAVEN-ATA3 | 0.210 | 0.800 | 0.010 | 0.010 | 0.418 | No | 1,697 | $56.8K | 72 % | buy file → |
| KXSERIEASPREAD-26OCT12ATAVEN-ATA4 | 0.350 | 0.720 | 0.010 | 0.010 | 0.336 | No | 345 | $8.3K | 82 % | buy file → |
| KXSERIEASPREAD-26OCT12TORUDI-TOR2 | 0.180 | 0.310 | 0.010 | 0.010 | 0.130 | No | 509 | $7.2K | 75 % | buy file → |
| KXSERIEASPREAD-26OCT12ATAVEN-ATA5 | 0.250 | 0.460 | 0.010 | 0.010 | 0.096 | No | 229 | $1.0K | 49 % | buy file → |
| KXSERIEASPREAD-26OCT12ATAVEN-VEN2 | 0.040 | 0.070 | 0.010 | 0.010 | 0.032 | No | 48 | $1.0K | 36 % | buy file → |
| KXSERIEASPREAD-26OCT12TORUDI-UDI2 | 0.110 | 0.120 | 0.010 | 0.010 | 0.081 | No | 89 | $477.34 | 83 % | buy file → |
| KXSERIEASPREAD-26OCT17VENNAP-NAP3 | 0.170 | 0.190 | 0.170 | 0.180 | 0.179 | open | 5 | $287.51 | 100 % | buy file → |
| KXSERIEASPREAD-26OCT12TORUDI-TOR3 | 0.060 | 0.090 | 0.010 | 0.010 | 0.040 | No | 61 | $178.1 | 54 % | buy file → |
| KXSERIEASPREAD-26OCT12TORUDI-UDI3 | 0.030 | 0.030 | 0.010 | 0.020 | 0.021 | No | 9 | $26.04 | 61 % | 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.
2026-10-11 — 10 contracts, 3,383 trades, $72.9K turnover
The 10 most traded Serie A Spread contracts on 2026-10-11 — 1 closed Yes (≥ 0.97), 9 closed No (≤ 0.03): 3,383 trades, $72.9K USD turnover. The busiest contract was KXSERIEASPREAD-26OCT11LAZMON-LAZ2 with $36.2K turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXSERIEASPREAD-26OCT11LAZMON-LAZ2 | 0.350 | 0.990 | 0.130 | 0.990 | 0.638 | Yes | 776 | $36.2K | 68 % | buy file → |
| KXSERIEASPREAD-26OCT11LAZMON-LAZ3 | 0.130 | 0.760 | 0.010 | 0.010 | 0.400 | No | 396 | $11.7K | 69 % | buy file → |
| KXSERIEASPREAD-26OCT11CAGJUV-JUV2 | 0.340 | 0.420 | 0.010 | 0.010 | 0.207 | No | 559 | $7.6K | 66 % | buy file → |
| KXSERIEASPREAD-26OCT11SASACM-ACM2 | 0.290 | 0.460 | 0.010 | 0.010 | 0.163 | No | 459 | $5.6K | 82 % | buy file → |
| KXSERIEASPREAD-26OCT11CAGJUV-CAG2 | 0.040 | 0.180 | 0.010 | 0.010 | 0.080 | No | 376 | $3.3K | 81 % | buy file → |
| KXSERIEASPREAD-26OCT11COMROM-COM2 | 0.180 | 0.250 | 0.010 | 0.010 | 0.149 | No | 317 | $2.9K | 70 % | buy file → |
| KXSERIEASPREAD-26OCT11LECBFC-BFC2 | 0.240 | 0.440 | 0.010 | 0.010 | 0.122 | No | 249 | $2.6K | 24 % | buy file → |
| KXSERIEASPREAD-26OCT11CAGJUV-JUV3 | 0.150 | 0.180 | 0.010 | 0.010 | 0.086 | No | 125 | $1.7K | 87 % | buy file → |
| KXSERIEASPREAD-26OCT11LAZMON-LAZ4 | 0.260 | 0.410 | 0.010 | 0.010 | 0.249 | No | 43 | $680.66 | 85 % | buy file → |
| KXSERIEASPREAD-26OCT11SASACM-SAS2 | 0.070 | 0.100 | 0.010 | 0.010 | 0.044 | No | 83 | $609.04 | 80 % | buy file → |
2026-10-10 — 10 contracts, 2,947 trades, $108.0K turnover
The 10 most traded Serie A Spread contracts on 2026-10-10 — 4 closed Yes (≥ 0.97), 6 closed No (≤ 0.03): 2,947 trades, $108.0K USD turnover. The busiest contract was KXSERIEASPREAD-26OCT10INTPAR-INT3 with $31.3K turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXSERIEASPREAD-26OCT10INTPAR-INT3 | 0.450 | 0.990 | 0.340 | 0.990 | 0.783 | Yes | 634 | $31.3K | 51 % | buy file → |
| KXSERIEASPREAD-26OCT10NAPFRO-NAP2 | 0.440 | 0.990 | 0.300 | 0.990 | 0.741 | Yes | 431 | $28.1K | 69 % | buy file → |
| KXSERIEASPREAD-26OCT10INTPAR-INT2 | 0.690 | 0.990 | 0.570 | 0.990 | 0.777 | Yes | 301 | $15.6K | 51 % | buy file → |
| KXSERIEASPREAD-26OCT10GENFIO-GEN2 | 0.100 | 0.680 | 0.010 | 0.010 | 0.392 | No | 414 | $14.8K | 62 % | buy file → |
| KXSERIEASPREAD-26OCT10NAPFRO-NAP3 | 0.230 | 0.990 | 0.060 | 0.990 | 0.410 | Yes | 500 | $9.5K | 47 % | buy file → |
| KXSERIEASPREAD-26OCT10INTPAR-INT4 | 0.480 | 0.880 | 0.010 | 0.010 | 0.453 | No | 261 | $4.3K | 68 % | buy file → |
| KXSERIEASPREAD-26OCT10GENFIO-GEN3 | 0.040 | 0.300 | 0.010 | 0.010 | 0.140 | No | 245 | $3.2K | 38 % | buy file → |
| KXSERIEASPREAD-26OCT10NAPFRO-NAP4 | 0.070 | 0.270 | 0.010 | 0.010 | 0.131 | No | 62 | $677.78 | 11 % | buy file → |
| KXSERIEASPREAD-26OCT10GENFIO-FIO2 | 0.190 | 0.190 | 0.010 | 0.010 | 0.080 | No | 66 | $315.08 | 85 % | buy file → |
| KXSERIEASPREAD-26OCT10NAPFRO-FRO2 | 0.060 | 0.070 | 0.010 | 0.020 | 0.053 | No | 33 | $253.25 | 98 % | buy file → |
2026-10-09 — 9 contracts, 30 trades, $288.05 turnover
The 9 most traded Serie A Spread contracts on 2026-10-09 — 0 closed Yes (≥ 0.97), 2 closed No (≤ 0.03), 7 still open at the last print: 30 trades, $288.05 USD turnover. The busiest contract was KXSERIEASPREAD-26OCT10INTPAR-INT3 with $142.32 turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXSERIEASPREAD-26OCT10INTPAR-INT3 | 0.440 | 0.460 | 0.440 | 0.450 | 0.459 | open | 7 | $142.32 | 86 % | buy file → |
| KXSERIEASPREAD-26OCT10INTPAR-INT2 | 0.670 | 0.690 | 0.670 | 0.690 | 0.688 | open | 6 | $98.19 | 80 % | buy file → |
| KXSERIEASPREAD-26OCT10GENFIO-FIO2 | 0.180 | 0.190 | 0.180 | 0.190 | 0.190 | open | 4 | $23.3 | 96 % | buy file → |
| KXSERIEASPREAD-26OCT12ATAVEN-ATA2 | 0.390 | 0.390 | 0.390 | 0.390 | 0.390 | open | 1 | $9.6 | 100 % | buy file → |
| KXSERIEASPREAD-26OCT10GENFIO-GEN2 | 0.100 | 0.120 | 0.100 | 0.100 | 0.101 | open | 5 | $8.48 | 9 % | buy file → |
| KXSERIEASPREAD-26OCT10INTPAR-PAR2 | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 | No | 3 | $3.3 | 9 % | buy file → |
| KXSERIEASPREAD-26OCT10NAPFRO-NAP2 | 0.440 | 0.440 | 0.440 | 0.440 | 0.440 | open | 1 | $1.76 | 100 % | buy file → |
| KXSERIEASPREAD-26OCT10NAPFRO-NAP3 | 0.230 | 0.230 | 0.230 | 0.230 | 0.230 | open | 2 | $0.92 | 0 % | buy file → |
| KXSERIEASPREAD-26OCT10INTPAR-PAR3 | 0.030 | 0.030 | 0.010 | 0.010 | 0.010 | No | 1 | $0.18 | 100 % | buy file → |
2026-10-08 — 4 contracts, 9 trades, $53.93 turnover
The 4 most traded Serie A Spread contracts on 2026-10-08 — 0 closed Yes (≥ 0.97), 1 closed No (≤ 0.03), 3 still open at the last print: 9 trades, $53.93 USD turnover. The busiest contract was KXSERIEASPREAD-26OCT11CAGJUV-JUV2 with $47.92 turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXSERIEASPREAD-26OCT11CAGJUV-JUV2 | 0.360 | 0.360 | 0.360 | 0.360 | 0.360 | open | 1 | $47.92 | 100 % | buy file → |
| KXSERIEASPREAD-26OCT10NAPFRO-FRO2 | 0.060 | 0.060 | 0.060 | 0.060 | 0.060 | open | 5 | $2.76 | 100 % | buy file → |
| KXSERIEASPREAD-26OCT10INTPAR-PAR3 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | No | 2 | $2.64 | 100 % | buy file → |
| KXSERIEASPREAD-26OCT10NAPFRO-NAP3 | 0.230 | 0.230 | 0.230 | 0.230 | 0.230 | open | 1 | $0.61 | 0 % | buy file → |
2026-10-07 — 4 contracts, 6 trades, $19.47 turnover
The 4 most traded Serie A Spread contracts on 2026-10-07 — 0 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 4 still open at the last print: 6 trades, $19.47 USD turnover. The busiest contract was KXSERIEASPREAD-26OCT10NAPFRO-NAP2 with $9.62 turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXSERIEASPREAD-26OCT10NAPFRO-NAP2 | 0.440 | 0.440 | 0.440 | 0.440 | 0.440 | open | 3 | $9.62 | 100 % | buy file → |
| KXSERIEASPREAD-26OCT10INTPAR-INT2 | 0.670 | 0.670 | 0.670 | 0.670 | 0.670 | open | 1 | $5.22 | 100 % | buy file → |
| KXSERIEASPREAD-26OCT10INTPAR-INT3 | 0.440 | 0.440 | 0.440 | 0.440 | 0.440 | open | 1 | $4.59 | 0 % | buy file → |
| KXSERIEASPREAD-26OCT12ATAVEN-VEN3 | 0.040 | 0.040 | 0.040 | 0.040 | 0.040 | open | 1 | $0.04 | 100 % | buy file → |
2026-10-06 — 3 contracts, 4 trades, $28.57 turnover
The 3 most traded Serie A Spread contracts on 2026-10-06 — 0 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 3 still open at the last print: 4 trades, $28.57 USD turnover. The busiest contract was KXSERIEASPREAD-26OCT12ATAVEN-ATA3 with $25.02 turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXSERIEASPREAD-26OCT12ATAVEN-ATA3 | 0.180 | 0.180 | 0.180 | 0.180 | 0.180 | open | 2 | $25.02 | 100 % | buy file → |
| KXSERIEASPREAD-26OCT11SASACM-ACM3 | 0.120 | 0.120 | 0.120 | 0.120 | 0.120 | open | 1 | $1.8 | 100 % | buy file → |
| KXSERIEASPREAD-26OCT11LAZMON-LAZ2 | 0.350 | 0.350 | 0.350 | 0.350 | 0.350 | open | 1 | $1.75 | 100 % | buy file → |
How a Serie A Spread contract trades
On Kalshi, a Serie A Spread contract trades for about 7.1 days from open to close, is listed roughly 9 min before it opens, and quotes in 1 ¢ price steps (0..1). Measured on the 10 contracts captured on 2026-10-12.
Try a Serie A Spread 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.
KXSERIEASPREAD-26OCT11COMROM-COM2 minute by minute — 2026-10-05
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.
KXSERIEASPREAD-26OCT11COMROM-COM2 traded in 1 of the day’s minutes (17:08–17:08 UTC): 2 trades, $31.19 turnover, opening at 0.170, ranging 0.170–0.170 and closing at 0.170.
| Minute (UTC) | Open | High | Low | Close | Trades | Turnover | Spread | Top-1 bid / ask |
|---|---|---|---|---|---|---|---|---|
| 17:08 | 0.170 | 0.170 | 0.170 | 0.170 | 2 | $31.19 | 1.00 ¢ | $408.95 / $56.83 |
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.
Why buy Kalshi Serie A Spread 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 Serie A Spread data — FAQ
What Kalshi Serie A Spread data can I download?
Tick-by-tick trades and Level-2 order-book depth for every contract of the Serie A Spread series on Kalshi (50 contract files on the latest day). One bundle = one UTC day of the whole series.
What is the Kalshi series ticker for Serie A Spread?
KXSERIEASPREAD — 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 KXSERIEASPREAD-* contract listed that UTC day.
How far back does the Serie A Spread data go?
Coverage runs March 2026 – present — 124 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 Serie A Spread 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 Serie A Spread 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 Serie A Spread 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 Serie A Spread 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 Serie A Spread contracts trade per day on Kalshi?
On average 15 Serie A Spread contracts had at least one trade per UTC day over the last 18 captured days on Kalshi, with about 395.7K order-book level updates recorded per day. A day bundle contains every contract file of the series for that day.
How liquid are Kalshi Serie A Spread contracts?
Over the last 18 captured days, the turnover-weighted quoted bid-ask spread was 1.56 ¢ (contracts quote 0..1 = 100 ¢), the mean best-bid/best-ask notional was about $6.4K 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 Serie A Spread contract on 2026-10-12?
KXSERIEASPREAD-26OCT12ATAVEN-ATA2 — $98.5K USD turnover over 1,435 trades on Kalshi. The 10 most traded contracts of the series did 4,427 trades and $173.7K 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 Serie A Spread trading day on Kalshi?
2026-09-14, with $481.8K of USD turnover over 11,490 trades across every Serie A Spread contract of the day; the busiest full month was Sep 2026 at $841.4K. Since our statistics began on 2026-08-15 the series has recorded 58,201 trades and $2.0M over 47 captured days; the single biggest contract was KXSERIEASPREAD-26SEP14INTUDI-INT2 on 2026-09-14 with $178.9K. Any of these days is a downloadable bundle.