Liquidity and trading

Field	Type	Nullable	Description
`exchange_close`	decimal	blank unless an exchange quotes the bond	Median of the exchange closes for the bond in percent of par, after closes over 3% from the median are cut. Unit: percent of par.
`exchange_venues`	text	blank unless an exchange quotes the bond	Market identifier codes (ISO 10383) of the venues in exchange_close, space separated.
`exchange_venue_count`	integer	blank unless an exchange quotes the bond	Number of venues in exchange_close. Unit: venues.
`exchange_date`	date	blank unless an exchange quotes the bond	Latest price date among the venues in exchange_close.
`sqx_minus_exchange`	decimal	blank unless an exchange quotes the bond	clean_price minus exchange_close. Unit: percent of par.
`trace_last_price`	decimal	blank unless TRACE reports a trade	Price of the bond's last trade reported to FINRA TRACE (US over-the-counter trades). Unit: percent of par.
`trace_date`	date	blank unless TRACE reports a trade	Date of the bond's last trade reported to FINRA TRACE.