OptionalaskOptionalbidOptionaldelayedThe provider knows this quote is delayed rather than real time.
Last traded price.
OptionalpreviousReference close for the change figures, usually the previous session's.
OptionaltimeExchange time of the last trade, UTC seconds.
OptionalvolumeSession volume.
A quote as its provider reports it. It is the provider's own observation, never a bar's close relabelled: a host without a quote source shows no price rather than the last candle. Absent fields are unknown, never zero.