01 / Market depth
How much can trade?
Available size is finite. A sale can fill at more than one price.
Try a simple example
Illustrative bids: 2 units at 100, 3 at 99.
Each dark block is one unit.
Available buys: 2 at 100, 3 at 99.
A fixed book, without new or cancelled orders, hidden liquidity, latency, or fees.
About execution costs ↗