Reference tables for Kalshi BTC contracts, rebuilt nightly from the same files the live screens are served from. The base rates cover 9,208 settled windows.
| Page | Answers |
|---|---|
| How often Kalshi BTC 15-minute contracts settled Yes | Settlement frequency by published price and time left, over settled windows. |
| Kalshi vs Polymarket BTC 15-minute contracts | Settlement index, tie rule, fees and window timing. Facts only. |
| Kalshi's fee on BTC contracts, at every price | The fee formula, the fee at every price from 1 to 99ยข, and breakeven. |
Every table is also a CSV, linked from its page, and the raw observations are at how this works. All of it is CC BY 4.0.
Cite as: Sardine (sardine.info), CC BY 4.0. Licence: CC BY 4.0.