Tick-by-tick trades and order-book depth for every Kalshi “Pro Basketball First Opponent of the Season” contract — 19 trading days as downloadable day bundles, €1 per day.
Trades and USD turnover summed over every contract of the series across 1 captured days to 2026-08-11, 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.
A series-day bundle contains every Pro Basketball First Opponent of the Season contract that traded on Kalshi on that UTC day — 145 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 – August 2026 — 19 trading days, 26.9 MB compressed in total. A day typically holds 145 contract files (up to 145 on the busiest day, 7.14 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.
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.
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 Pro Basketball First Opponent of the Season contracts on 2026-08-11 — 4 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 6 still open at the last print: 101 trades, $8.0K USD turnover. The busiest contract was KXNBAFIRSTOPPONENT-26PHI-NYK with $4.0K turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXNBAFIRSTOPPONENT-26PHI-NYK | 0.630 | 0.990 | 0.630 | 0.990 | 0.988 | Yes | 10 | $4.0K | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26NYK-PHI | 0.650 | 0.990 | 0.630 | 0.910 | 0.962 | open | 23 | $2.5K | 99 % | buy file → |
| KXNBAFIRSTOPPONENT-26BOS-DET | 0.740 | 0.990 | 0.460 | 0.980 | 0.897 | Yes | 31 | $1.1K | 52 % | buy file → |
On Kalshi, a Pro Basketball First Opponent of the Season contract trades for about 18 days from open to close, and quotes in 1 ¢ price steps (0..1). Measured on the 10 contracts captured on 2026-08-11.
Tick-by-tick trades and Level-2 order-book depth for every contract of the Pro Basketball First Opponent of the Season series on Kalshi (145 contract files on the latest day). One bundle = one UTC day of the whole series.
KXNBAFIRSTOPPONENT — 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 KXNBAFIRSTOPPONENT-* contract that traded that UTC day.
Coverage runs July 2026 – August 2026 — 19 trading days in total.
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.
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.
€1 per series-day bundle — every contract of the series for that day, with invoice on checkout. Buy it in the Data Shop.
| Buy day → |
| 2026-08-07 | 145 | 906 KB | — | 33 | $1.1K | — | — | — | — | Buy day → |
| 2026-08-06 | 145 | 900 KB | — | 2 | $19.16 | — | — | — | — | Buy day → |
| 2026-08-05 | 145 | 816 KB | — | 31 | $369.69 | — | — | — | — | Buy day → |
| 2026-08-04 | 145 | 829 KB | — | 3 | $45.6 | — | — | — | — | Buy day → |
| 2026-08-03 | 145 | 901 KB | — | 16 | $471.68 | — | — | — | — | Buy day → |
| 2026-08-02 | 145 | 757 KB | — | 0 | $0 | — | — | — | — | Buy day → |
| 2026-08-01 | 145 | 749 KB | — | 7 | $58.93 | — | — | — | — | Buy day → |
| 2026-07-31 | 145 | 848 KB | — | 12 | $101.13 | — | — | — | — | Buy day → |
| 2026-07-30 | 145 | 662 KB | — | 6 | $77.13 | — | — | — | — | Buy day → |
| 2026-07-29 | 145 | 756 KB | — | 3 | $30.02 | — | — | — | — | Buy day → |
| 2026-07-28 | 145 | 811 KB | — | 22 | $258.39 | — | — | — | — | Buy day → |
| 2026-07-27 | 145 | 1.83 MB | — | 26 | $246.33 | — | — | — | — | Buy day → |
| 2026-07-26 | 145 | 7.14 MB | — | 9 | $54.76 | — | — | — | — | Buy day → |
| 2026-07-25 | 145 | 1.24 MB | — | 34 | $905.21 | — | — | — | — | Buy day → |
| 2026-07-24 | 145 | 534 KB | — | 36 | $1.3K | — | — | — | — | 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 —.
| 0.680 |
| 0.990 |
| 0.680 |
| 0.990 |
| 0.971 |
| Yes |
| 4 |
| $145.65 |
| 100 % |
| buy file → |
| KXNBAFIRSTOPPONENT-26OKC-SAS | 0.630 | 0.990 | 0.630 | 0.990 | 0.933 | Yes | 9 | $110.6 | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26OKC-LAL | 0.780 | 0.780 | 0.110 | 0.110 | 0.132 | open | 8 | $19.36 | 91 % | buy file → |
| KXNBAFIRSTOPPONENT-26NYK-BOS | 0.190 | 0.210 | 0.160 | 0.210 | 0.191 | open | 6 | $18.6 | 66 % | buy file → |
| KXNBAFIRSTOPPONENT-26NYK-CLE | 0.080 | 0.080 | 0.040 | 0.060 | 0.059 | open | 2 | $9.2 | 98 % | buy file → |
| KXNBAFIRSTOPPONENT-26PHI-LAL | 0.170 | 0.190 | 0.150 | 0.150 | 0.172 | open | 5 | $7.03 | 67 % | buy file → |
| KXNBAFIRSTOPPONENT-26SAS-MIN | 0.150 | 0.150 | 0.050 | 0.050 | 0.118 | open | 3 | $5.22 | 90 % | 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.
The 10 most traded Pro Basketball First Opponent of the Season contracts on 2026-08-10 — 0 closed Yes (≥ 0.97), 1 closed No (≤ 0.03), 9 still open at the last print: 52 trades, $1.8K USD turnover. The busiest contract was KXNBAFIRSTOPPONENT-26BOS-DET with $1.3K turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXNBAFIRSTOPPONENT-26BOS-DET | 0.760 | 0.950 | 0.630 | 0.740 | 0.761 | open | 20 | $1.3K | 79 % | buy file → |
| KXNBAFIRSTOPPONENT-26NYK-PHI | 0.500 | 0.650 | 0.500 | 0.650 | 0.619 | open | 10 | $204.56 | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26OKC-SAS | 0.550 | 0.630 | 0.550 | 0.630 | 0.614 | open | 4 | $194.75 | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26SAS-OKC | 0.610 | 0.690 | 0.610 | 0.680 | 0.665 | open | 4 | $119.69 | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26PHI-NYK | 0.700 | 0.870 | 0.560 | 0.630 | 0.599 | open | 6 | $32.11 | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26PHI-LAL | 0.860 | 0.860 | 0.170 | 0.170 | 0.170 | open | 1 | $17 | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26NYK-SAS | 0.580 | 0.580 | 0.100 | 0.100 | 0.100 | open | 2 | $4.71 | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26BOS-MIA | 0.210 | 0.210 | 0.110 | 0.110 | 0.110 | open | 1 | $0.95 | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26SAS-LAL | 0.130 | 0.130 | 0.100 | 0.100 | 0.100 | open | 2 | $0.94 | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26NYK-MIN | 0.370 | 0.370 | 0.010 | 0.010 | 0.010 | No | 2 | $0.5 | 0 % | buy file → |
The 7 most traded Pro Basketball First Opponent of the Season contracts on 2026-08-09 — 0 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 7 still open at the last print: 17 trades, $401.28 USD turnover. The busiest contract was KXNBAFIRSTOPPONENT-26BOS-DET with $199.65 turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXNBAFIRSTOPPONENT-26BOS-DET | 0.630 | 0.760 | 0.600 | 0.760 | 0.619 | open | 6 | $199.65 | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26NYK-PHI | 0.680 | 0.680 | 0.500 | 0.500 | 0.501 | open | 3 | $130.33 | 0 % | buy file → |
| KXNBAFIRSTOPPONENT-26BOS-NYK | 0.220 | 0.220 | 0.130 | 0.130 | 0.130 | open | 1 | $32.5 | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26PHI-LAL | 0.030 | 0.860 | 0.030 | 0.860 | 0.169 | open | 4 | $17.12 | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26PHI-MIA | 0.060 | 0.060 | 0.060 | 0.060 | 0.060 | open | 1 | $15 | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26NYK-MIA | 0.190 | 0.190 | 0.060 | 0.060 | 0.060 | open | 1 | $4.5 | 100 % | buy file → |
| KXNBAFIRSTOPPONENT-26PHI-BOS | 0.130 | 0.130 | 0.110 | 0.110 | 0.110 | open | 1 | $2.18 | 0 % | buy file → |
On average 16 Pro Basketball First Opponent of the Season contracts had at least one trade per UTC day over the last 1 captured days on Kalshi, with about 171.2K order-book level updates recorded per day. A day bundle contains every contract file of the series for that day.
Over the last 1 captured days, the turnover-weighted quoted bid-ask spread was 14.8 ¢ (contracts quote 0..1 = 100 ¢), the mean best-bid/best-ask notional was about $410.09 per side, 93 % 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.
KXNBAFIRSTOPPONENT-26PHI-NYK — $4.0K USD turnover over 10 trades on Kalshi. The 10 most traded contracts of the series did 101 trades and $8.0K 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.