BSX operates a continuous first-come, first-serve order book. Orders are executed in price-time priority as received by the matching engine.

Self-Trade Prevention

Self-trading is not allowed on BSX. Trades between the same address cancel the taker order instead of causing a fill.

Order states

Order state	Description
`pending`	order is received but not processed yet
`open`	order is live on the book
`done`	order is either filled or canceled
`accepted`	stop order is accepted and resting. Order wont be placed on the book until being triggered.