Tick-by-tick trades and L2 order-book depth for 27 IPOs & Corporate Actions series on Kalshi — When will OpenAI, Anthropic, Starlink, Stripe, Discord, Canva, Databricks, Anduril, Ramp, Rippling, Deel, Brex or Skims IPO; IPOs this year; company mergers and acquisitions; S&P 500 and DJIA additions and removals. 4,325 series-days covering March 2026 – September 2026. Sold as day bundles from €1.
IPO timing markets for OpenAI, Anthropic, SpaceX/Starlink, Stripe, Databricks, Discord, Canva and more; mergers, acquisitions and index additions/removals.
Every series below is archived at full feed resolution — each contract file carries every trade print (price, size, side) and Level-2 order-book updates in one normalized, zstd-compressed schema. A series-day bundle holds all contracts of the series for one UTC day.
Largest archive first. Each series page lists its exact coverage, day count and recent days; day bundles are bought in the shop calendar.
| Series | Venue | Interval | Days | Coverage | Size | Price/day | |
|---|---|---|---|---|---|---|---|
| IPOs | Kalshi | event | 183 | March 2026 – September 2026 | 186 MB | €1 | Buy days |
| When will OPENAI Announce IPO? | Kalshi | event | 183 | March 2026 – September 2026 | 72.7 MB | €1 | Buy days |
| Anthropic IPO | Kalshi | event | 155 | April 2026 – September 2026 | 61.5 MB | €1 | Buy days |
| companies acquired this year | Kalshi | event | 107 | May 2026 – September 2026 | 44.2 MB | €1 | Buy days |
| Company Merger | Kalshi | event | 161 | March 2026 – September 2026 | 41.9 MB | €1 | Buy days |
| Companies added to SP500 | Kalshi | event | 183 | March 2026 – September 2026 | 32.3 MB | €1 | Buy days |
| When will Discord IPO | Kalshi | event | 183 | March 2026 – September 2026 | 30.5 MB | €1 | Buy days |
| When will starlink IPO | Kalshi | event | 183 | March 2026 – September 2026 | 24.7 MB | €1 | Buy days |
| When will anduril IPO | Kalshi | event | 183 | March 2026 – September 2026 | 23.5 MB | €1 | Buy days |
| When will Stripe Announce IPO? | Kalshi | event | 183 | March 2026 – September 2026 | 16.8 MB | €1 | Buy days |
| When will deel IPO | Kalshi | event | 183 | March 2026 – September 2026 | 15.5 MB | €1 | Buy days |
| When will Fannie Mae IPO? | Kalshi | event | 183 | March 2026 – September 2026 | 14.5 MB | €1 | Buy days |
| When Will Glean IPO | Kalshi | event | 183 | March 2026 – September 2026 | 13.8 MB | €1 | Buy days |
| When will Ramp IPO | Kalshi | event | 183 | March 2026 – September 2026 | 13.6 MB | €1 | Buy days |
| When will beast indsutries ipo | Kalshi | event | 183 | March 2026 – September 2026 | 13.6 MB | €1 | Buy days |
| When will Rippling IPO | Kalshi | event | 183 | March 2026 – September 2026 | 12.6 MB | €1 | Buy days |
| When will Appsflyer IPO | Kalshi | event | 183 | March 2026 – September 2026 | 12.4 MB | €1 | Buy days |
| When will Oli Pop Ipo? | Kalshi | event | 183 | March 2026 – September 2026 | 11.8 MB | €1 | Buy days |
| When will Freddie Mac IPO? | Kalshi | event | 183 | March 2026 – September 2026 | 10.7 MB | €1 | Buy days |
| Databricks IPO | Kalshi | event | 93 | June 2026 – September 2026 | 10.5 MB | €1 | Buy days |
| Canva IPO | Kalshi | event | 93 | June 2026 – September 2026 | 10.3 MB | €1 | Buy days |
| Waymo IPO | Kalshi | event | 93 | June 2026 – September 2026 | 10.2 MB | €1 | Buy days |
| When will Cluely IPO | Kalshi | event | 183 | March 2026 – September 2026 | 9.63 MB | €1 | Buy days |
| Skims IPO | Kalshi | event | 93 | June 2026 – September 2026 | 9.62 MB | €1 | Buy days |
| When will Brex IPo | Kalshi | event | 183 | March 2026 – September 2026 | 9.17 MB | €1 | Buy days |
| Companies removed from SP500 | Kalshi | event | 166 | March 2026 – September 2026 | 7.84 MB | €1 | Buy days |
| Companies removed from DJIA | Kalshi | event | 70 | June 2026 – September 2026 | 5.80 MB | €1 | Buy days |
Yes — per-company IPO-timing series (OpenAI, Anthropic, Starlink, Stripe, Databricks, Discord, Canva, Anduril, Ramp, Rippling, Deel, Brex, Skims, Glean, Cluely, Olipop, Whoop, Oura, AppsFlyer, Beast Industries, Fannie Mae, Freddie Mac, Waymo) plus IPO counts, acquisitions announced, mergers and index-membership changes.
One purchase covers every contract of a series for one UTC day — tick-by-tick trades plus Level-2 order-book updates per contract — typically €1 per series-day.
Coverage runs March 2026 – September 2026 — 4,325 series-days across 27 series on Kalshi. Each series page lists its exact span.
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.
Typically €1 per series-day bundle — every contract of the series for that UTC day, with invoice on checkout. Pick days in the shop calendar.