Instrument is active, i.e. trading is possible.
Instrument has previously been active and is now no longer traded but has not expired yet. The instrument may become active again.
Active, closing orders only
Instrument is active but only orders closing positions (reducing risk) are allowed.
Instrument has expired. E.g. An instrument may expire due to reaching maturity or expired based on contract definitions or exchange rules.
Instrument has been removed from securities reference data. Delisting rules varies from exchange to exchange, which may include non-compliance of capitalization, revenue, consecutive minimum closing price. The instrument may become listed again once the instrument is back in compliance. A delisted instrument would not trade on the exchange but it may still be traded over-the-counter (e.g. OTCBB) or on Pink Sheets, or other similar trading service.
Instrument has breached a pre-defined price threshold.
Instrument reinstated, i.e. threshold has not been breached.
Instrument is currently still active but will expire after the current business day. For example, a contract that expires intra-day (e.g. at noon time) and is no longer tradeable but will still show up in the current day's order book with related statistics.
Instrument has been temporarily disabled for trading (i.e. halted).
Instrument information is provided prior to its first activation.
Instrument is awaiting deletion from security reference data.