ICE Europe Commodities Schemas#
ICE Europe Commodities provides trading in commodity futures and options like crude oil, natural gas, power, emissions, and more.
ICE_EU_COM#
Database includes the following Tables:
DAY - Daily price and statistical data, e.g. closing price, settlement price, open interest
IND - Indicative pricing, e.g. indicative auction prices and imbalance
LULD - Limit Up / Limit Down price levels
MKT - Market phase / instrument status information
PRL_FULL - Full orderbook data, showing updates to each individual order (MBO)
QTE - Best bid / offer quotes
STAT - Static data, e.g. ISIN, description, security type
TRD - Trades
ICE_EU_COM - DAY#
Daily price and statistical data, e.g. closing price, settlement price, open interest
Field |
Data Type |
Description |
|---|---|---|
SYMBOL_NAME |
string |
Symbol Name (Exchange Symbol for Equities & ETFs, and Starting with Exchange Product Code for Derivative Markets followed by expiry and strike as appropriate) |
TIMESTAMP |
nsectime |
Event Timestamp (typically at a nano-second resolution) |
UPDATE_TYPE |
string[16] |
Type of update |
OPEN |
double |
Open price for the current trading day |
HIGH |
double |
DAY: High price for the current trading day TRD_1M: Price of the highest-priced eligible trade in the current bar interval |
LOW |
double |
DAY: Low price for the current trading day. TRD_1M: Price of the lowest-priced eligible trade in the current bar interval |
CLOSE |
double |
Closing price |
SETTLE_PRICE |
double |
Settlement price |
SETTLE_DATE |
string[8] |
Trading date to which the settlement price relates (YYYYMMDD) |
VOLUME |
double |
DAY: Total volume traded on the current trading day TRD_1M, VWAP_1H: Total volume of eligible trades in the current bar interval |
OPEN_INT |
double |
Open interest for futures / options |
OPEN_INT_DATE |
string[8] |
Trading date to which the open interest relates (YYYYMMDD) |
OMDSEQ |
uint |
Sequence number allowing ticks of different types at the same timestamp to be sorted into the correct chronological order. e.g. if a trade and a quote have the same timestamp, the one with the lower value of OMDSEQ arrived first. |
ICE_EU_COM - IND#
Indicative pricing, e.g. indicative auction prices and imbalance
Field |
Data Type |
Description |
|---|---|---|
SYMBOL_NAME |
string |
Symbol Name (Exchange Symbol for Equities & ETFs, and Starting with Exchange Product Code for Derivative Markets followed by expiry and strike as appropriate) |
TIMESTAMP |
nsectime |
Event Timestamp (typically at a nano-second resolution) |
EXCH_TIME |
nsectime |
Event timestamp, as provided by the exchange. For electronic trading this refers to the matching engine timestamp |
PRICE |
double |
TRD: Trade price, IDX: Index value, IND: Indicative price, PRL: Price point to which the depth entry relates, PRL_FULL: Order price, FIXING: Fixing price, RFC: Price associated with a Request for Cross |
SIZE |
int |
TRD: Trade size, IND: Indicative size, PRL: Size at the relevant price point, PRL_FULL: Order size, RFQ: Size associated with a Request for Quote, RFC: Size associated with a Request for Cross |
OMDSEQ |
uint |
Sequence number allowing ticks of different types at the same timestamp to be sorted into the correct chronological order. e.g. if a trade and a quote have the same timestamp, the one with the lower value of OMDSEQ arrived first. |
ICE_EU_COM - LULD#
Limit Up / Limit Down price levels
Field |
Data Type |
Description |
|---|---|---|
SYMBOL_NAME |
string |
Symbol Name (Exchange Symbol for Equities & ETFs, and Starting with Exchange Product Code for Derivative Markets followed by expiry and strike as appropriate) |
TIMESTAMP |
nsectime |
Event Timestamp (typically at a nano-second resolution) |
HIGH_LIMIT |
double |
Upper trading limit / circuit breaker level |
LOW_LIMIT |
double |
Lower trading limit / circuit breaker level |
OMDSEQ |
uint |
Sequence number allowing ticks of different types at the same timestamp to be sorted into the correct chronological order. e.g. if a trade and a quote have the same timestamp, the one with the lower value of OMDSEQ arrived first. |
ICE_EU_COM - MKT#
Market phase / instrument status information
Field |
Data Type |
Description |
|---|---|---|
SYMBOL_NAME |
string |
Symbol Name (Exchange Symbol for Equities & ETFs, and Starting with Exchange Product Code for Derivative Markets followed by expiry and strike as appropriate) |
TIMESTAMP |
nsectime |
Event Timestamp (typically at a nano-second resolution) |
MKT_PHASE |
string[6] |
Indicates the instrument’s current market phase, as specified by the trading venue |
OMD_STATUS |
string[1] |
Indicates an instrument’s current trading status. Values are normalized across all DBs. |
OMDSEQ |
uint |
Sequence number allowing ticks of different types at the same timestamp to be sorted into the correct chronological order. e.g. if a trade and a quote have the same timestamp, the one with the lower value of OMDSEQ arrived first. |
ICE_EU_COM - PRL_FULL#
Full orderbook data, showing updates to each individual order (MBO)
Field |
Data Type |
Description |
|---|---|---|
SYMBOL_NAME |
string |
Symbol Name (Exchange Symbol for Equities & ETFs, and Starting with Exchange Product Code for Derivative Markets followed by expiry and strike as appropriate) |
TIMESTAMP |
nsectime |
Event Timestamp (typically at a nano-second resolution) |
EXCH_TIME |
nsectime |
Event timestamp, as provided by the exchange. For electronic trading this refers to the matching engine timestamp |
ORDER_ID |
string[16] |
Order identifier, uniquely identifying an order at any given point in time. Uniqueness depends on the exchange - e.g. may be globally unique, or unique per trading day, or per instrument per trading day. |
ORDER_TYPE |
string[1] |
Type of order. |
BUY_SELL_FLAG |
int |
Orderbook side (0 - Buy, 1 - Sell) |
PRICE |
double |
TRD: Trade price, IDX: Index value, IND: Indicative price, PRL: Price point to which the depth entry relates, PRL_FULL: Order price, FIXING: Fixing price, RFC: Price associated with a Request for Cross |
SIZE |
long |
TRD: Trade size, IND: Indicative size, PRL: Size at the relevant price point, PRL_FULL: Order size, RFQ: Size associated with a Request for Quote, RFC: Size associated with a Request for Cross |
TIME_PRIORITY |
long |
Time priority of an order in the order queue. If two standard orders on the same side have the same price, the one with the lower value of TIME_PRIORITY will be executed first. |
TRADE_ID |
string[16] |
Trade identifier, generally the ID assigned by the matching engine |
RECORD_TYPE |
string[1] |
Type of depth update. |
TICK_STATUS |
int |
Internal OneTick field. Always 0 unless hidden ticks are requested (e.g. SHOW_HIDDEN_TICKS). |
DELETED_TIME |
nsectime |
Internal OneTick field. Usually null unless hidden ticks are requested (e.g. SHOW_HIDDEN_TICKS). |
OMDSEQ |
uint |
Sequence number allowing ticks of different types at the same timestamp to be sorted into the correct chronological order. e.g. if a trade and a quote have the same timestamp, the one with the lower value of OMDSEQ arrived first. |
ICE_EU_COM - QTE#
Best bid / offer quotes
Field |
Data Type |
Description |
|---|---|---|
SYMBOL_NAME |
string |
Symbol Name (Exchange Symbol for Equities & ETFs, and Starting with Exchange Product Code for Derivative Markets followed by expiry and strike as appropriate) |
TIMESTAMP |
nsectime |
Event Timestamp (typically at a nano-second resolution) |
EXCH_TIME |
nsectime |
Event timestamp, as provided by the exchange. For electronic trading this refers to the matching engine timestamp |
BID_PRICE |
double |
Best bid price. A null value is used if the bid side is empty, or if the best bid is set by unpriced orders (e.g. market orders) |
BID_SIZE |
int |
Best bid size |
ASK_PRICE |
double |
Best ask price. A null value is used if the ask side is empty, or if the best ask is set by unpriced orders (e.g. market orders) |
ASK_SIZE |
int |
Best ask size |
OMDSEQ |
uint |
Sequence number allowing ticks of different types at the same timestamp to be sorted into the correct chronological order. e.g. if a trade and a quote have the same timestamp, the one with the lower value of OMDSEQ arrived first. |
ICE_EU_COM - STAT#
Static data, e.g. ISIN, description, security type
Field |
Data Type |
Description |
|---|---|---|
SYMBOL_NAME |
string |
Symbol Name (Exchange Symbol for Equities & ETFs, and Starting with Exchange Product Code for Derivative Markets followed by expiry and strike as appropriate) |
TIMESTAMP |
nsectime |
Event Timestamp (typically at a nano-second resolution) |
NAME |
string[200] |
Description of the instrument |
ISIN |
string[12] |
ISIN code |
EXCH_SYMBOL |
string[40] |
Ticker symbol specified by the exchange |
TRADING_CODE |
string[12] |
ID used to identify the instrument in the trading system |
PRODUCT_CODE |
string[20] |
Root code of a futures / options product, as specified by the exchange (e.g. CL for Crude Oil futures on NYMEX). For inter-product spreads, PRODUCT_CODE will include both products, e.g. AB-CD for a spread between products AB and CD. |
UNDERLYING_SYMBOL |
string[32] |
Symbol of the underlying instrument |
UNDERLYING_ISIN |
string[12] |
ISIN of the underlying instrument |
MIC |
string[4] |
Market Identifier Code (MIC, ISO 10383) identifying the market on which the instrument is traded |
OPERATING_MIC |
string[4] |
Market Identifier Code (MIC, ISO 10383) of the exchange that operates the market on which the instrument is traded |
SEC_TYPE |
string[30] |
Security type, e.g. Equity, ETF, Future |
STRATEGY_TYPE |
string[40] |
Type of strategy / spread, e.g. Calendar Spread, Futures Butterfly |
EXCH_STRATEGY_TYPE |
string[10] |
Type of strategy / spread, as specified by the exchange |
CFI_CODE |
string[6] |
Classification of Financial Instruments code (ISO 10962), indicating the type of security |
CURRENCY |
string[3] |
Currency in which the instrument’s price is expressed (or nominal currency for bonds traded as a % of nominal). |
EXPIRATION_DATE |
string[8] |
Date when a derivative expires (YYYYMMDD) |
STRIKE_PRICE |
double |
Exercise price for options / warrants |
CALL_PUT_IND |
string[1] |
C - Call option, P - Put option |
EXERCISE_TYPE |
string[1] |
Option exercise type (A - American, E - European, B - Bermudan, S - Asian) |
CONTRACT_SIZE |
double |
Indicates a derivative’s underlying quantity |
TICK_SIZE |
string[50] |
Tick size / minimum price increment. All order prices must be a multiple of the tick size. |
TICK_VALUE |
double |
Tick value, i.e. the profit / loss per contract resulting from a price movement equal to TICK_SIZE. |
OMDSEQ |
uint |
Sequence number allowing ticks of different types at the same timestamp to be sorted into the correct chronological order. e.g. if a trade and a quote have the same timestamp, the one with the lower value of OMDSEQ arrived first. |
ICE_EU_COM - TRD#
Trades
Field |
Data Type |
Description |
|---|---|---|
SYMBOL_NAME |
string |
Symbol Name (Exchange Symbol for Equities & ETFs, and Starting with Exchange Product Code for Derivative Markets followed by expiry and strike as appropriate) |
TIMESTAMP |
nsectime |
Event Timestamp (typically at a nano-second resolution) |
EXCH_TIME |
nsectime |
Event timestamp, as provided by the exchange. For electronic trading this refers to the matching engine timestamp |
PRICE |
double |
TRD: Trade price, IDX: Index value, IND: Indicative price, PRL: Price point to which the depth entry relates, PRL_FULL: Order price, FIXING: Fixing price, RFC: Price associated with a Request for Cross |
SIZE |
long |
TRD: Trade size, IND: Indicative size, PRL: Size at the relevant price point, PRL_FULL: Order size, RFQ: Size associated with a Request for Quote, RFC: Size associated with a Request for Cross |
AGGRESSOR_SIDE |
string[1] |
Indicates whether a trade resulted from an incoming buy or sell order. |
TRADE_TYPE |
string[4] |
Type of trade |
BOOK_TYPE |
string[1] |
Type of order book or trading mechanism through which a trade was executed. |
TRADE_ID |
string[16] |
Trade identifier, generally the ID assigned by the matching engine |
DELETED_TIME |
nsectime |
Internal OneTick field. Usually null unless hidden ticks are requested (e.g. SHOW_HIDDEN_TICKS). |
TICK_STATUS |
int |
Internal OneTick field. Always 0 unless hidden ticks are requested (e.g. SHOW_HIDDEN_TICKS). |
OMDSEQ |
uint |
Sequence number allowing ticks of different types at the same timestamp to be sorted into the correct chronological order. e.g. if a trade and a quote have the same timestamp, the one with the lower value of OMDSEQ arrived first. |
ICE_EU_COM_BARS#
Database includes the following Tables:
DAY - Daily price and statistical data, e.g. closing price, settlement price, open interest
MKT - Market phase / instrument status information
QTE_1M - 1-minute quote bars
ICE_EU_COM_BARS - DAY#
Daily price and statistical data, e.g. closing price, settlement price, open interest
Field |
Data Type |
Description |
|---|---|---|
SYMBOL_NAME |
string |
Symbol Name (Exchange Symbol for Equities & ETFs, and Starting with Exchange Product Code for Derivative Markets followed by expiry and strike as appropriate) |
TIMESTAMP |
nsectime |
Event Timestamp (typically at a nano-second resolution) |
UPDATE_TYPE |
string[16] |
Type of update |
OPEN |
double |
Open price for the current trading day |
HIGH |
double |
DAY: High price for the current trading day TRD_1M: Price of the highest-priced eligible trade in the current bar interval |
LOW |
double |
DAY: Low price for the current trading day. TRD_1M: Price of the lowest-priced eligible trade in the current bar interval |
CLOSE |
double |
Closing price |
SETTLE_PRICE |
double |
Settlement price |
SETTLE_DATE |
string[8] |
Trading date to which the settlement price relates (YYYYMMDD) |
VOLUME |
double |
DAY: Total volume traded on the current trading day TRD_1M, VWAP_1H: Total volume of eligible trades in the current bar interval |
OPEN_INT |
double |
Open interest for futures / options |
OPEN_INT_DATE |
string[8] |
Trading date to which the open interest relates (YYYYMMDD) |
OMDSEQ |
uint |
Sequence number allowing ticks of different types at the same timestamp to be sorted into the correct chronological order. e.g. if a trade and a quote have the same timestamp, the one with the lower value of OMDSEQ arrived first. |
ICE_EU_COM_BARS - MKT#
Market phase / instrument status information
Field |
Data Type |
Description |
|---|---|---|
SYMBOL_NAME |
string |
Symbol Name (Exchange Symbol for Equities & ETFs, and Starting with Exchange Product Code for Derivative Markets followed by expiry and strike as appropriate) |
TIMESTAMP |
nsectime |
Event Timestamp (typically at a nano-second resolution) |
OMD_STATUS |
string[64] |
Indicates an instrument’s current trading status. Values are normalized across all DBs. |
MKT_PHASE |
string[6] |
Indicates the instrument’s current market phase, as specified by the trading venue |
OMDSEQ |
uint |
Sequence number allowing ticks of different types at the same timestamp to be sorted into the correct chronological order. e.g. if a trade and a quote have the same timestamp, the one with the lower value of OMDSEQ arrived first. |
ICE_EU_COM_BARS - QTE_1M#
1-minute quote bars
Field |
Data Type |
Description |
|---|---|---|
SYMBOL_NAME |
string |
Symbol Name (Exchange Symbol for Equities & ETFs, and Starting with Exchange Product Code for Derivative Markets followed by expiry and strike as appropriate) |
TIMESTAMP |
nsectime |
Event Timestamp (typically at a nano-second resolution) |
FIRST_BID_TIME |
nsectime |
Time of the first best bid update in the current bar interval |
FIRST_BID_PRICE |
double |
Price of the first best bid update in the current bar interval |
FIRST_BID_SIZE |
long |
Size of the first best bid update in the current bar interval |
FIRST_ASK_TIME |
nsectime |
Time of the first best ask update in the current bar interval |
FIRST_ASK_PRICE |
double |
Price of the first best ask update in the current bar interval |
FIRST_ASK_SIZE |
long |
Size of the first best ask update in the current bar interval |
HIGH_BID_TIME |
nsectime |
Time of the bid quote that set HIGH_BID. If there are multiple quotes at that price, the first one is used. |
HIGH_BID |
double |
Highest bid price in the current bar interval |
HIGH_BID_SIZE |
long |
Size of the bid quote that set HIGH_BID. If there are multiple quotes at that price, the first one is used. |
ASK_PRICE_AT_HIGH_BID |
double |
Ask price of the quote that set HIGH_BID. If there are multiple bid quotes at HIGH_BID, the first one is used. |
ASK_SIZE_AT_HIGH_BID |
long |
Ask size of the quote that set HIGH_BID. If there are multiple bid quotes at HIGH_BID, the first one is used. |
LOW_ASK_TIME |
nsectime |
Time of the bid quote that set LOW_ASK. If there are multiple quotes at that price, the first one is used. |
LOW_ASK |
double |
Lowest ask price in the current bar interval |
LOW_ASK_SIZE |
long |
Size of the ask quote that set LOW_ASK. If there are multiple quotes at that price, the first one is used. |
BID_PRICE_AT_LOW_ASK |
double |
Bid price of the quote that set LOW_ASK. If there are multiple ask quotes at LOW_ASK, the first one is used. |
BID_SIZE_LOW_ASK |
long |
Bid size of the quote that set LOW_ASK. If there are multiple ask quotes at LOW_ASK, the first one is used. |
LAST_BID_TIME |
nsectime |
Time of the last best bid update in the current bar interval |
LAST_BID_PRICE |
double |
Price of the last best bid update in the current bar interval |
LAST_BID_SIZE |
long |
Size of the last best bid update in the current bar interval |
LAST_ASK_TIME |
nsectime |
Time of the last best ask update in the current bar interval |
LAST_ASK_PRICE |
double |
Price of the last best ask update in the current bar interval |
LAST_ASK_SIZE |
long |
Size of the last best ask update in the current bar interval |
MID_TWAP |
double |
Time-weighted average of the midpoint of the best bid/ask over the current bar interval. [Note: One-sided or empty quotes are excluded from the calculation] |
MID_MEDIAN |
double |
Median of the midpoint of the best bid/ask quotes over the current bar interval. [Note: One-sided or empty quotes are excluded from the calculation] |
MID_LAST |
double |
Midpoint of the last best bid/ask in the current bar interval. [Note: One-sided or empty quotes are excluded from the calculation] |
SPREAD_MIN |
double |
Narrowest bid/ask spread, i.e. the lowest value of (best ask price - best bid price) over the current bar interval. [Note: May be zero or negative if the book was locked/crossed. One-sided or empty quotes are excluded from the calculation] |
SPREAD_MAX |
double |
Widest bid/ask spread, i.e. the highest value of (best ask price - best bid price) over the current bar interval. [Note: May be zero or negative if the book was locked/crossed. One-sided or empty quotes are excluded from the calculation] |
SPREAD_TWAP |
double |
Time-weighted average of (best ask price - best bid price) over the current bar interval. [Note: May be zero or negative if the book was locked/crossed. One-sided or empty quotes are excluded from the calculation] |
SPREAD_MEDIAN |
double |
Median value of (best ask price - best bid price) over the current bar interval. [Note: May be zero or negative if the book was locked/crossed. One-sided or empty quotes are excluded from the calculation] |
SPREAD_LAST |
double |
Last value of (best ask price - best bid price) over the current bar interval. [Note: May be zero or negative if the book was locked/crossed. One-sided or empty quotes are excluded from the calculation] |
QUOTE_CURRENCY |
string[3] |
Currency in which a quote price is expressed. |
QUOTE_TICK_COUNT |
long |
Number of BBO quotes in the current bar interval |
CLOUD_DB |
string[32] |
In composite DBs: Identifies the source database for each tick. In bars DBs: Identifies the database containing the tick data used to calculate the bars. |
OMDSEQ |
uint |
Sequence number allowing ticks of different types at the same timestamp to be sorted into the correct chronological order. e.g. if a trade and a quote have the same timestamp, the one with the lower value of OMDSEQ arrived first. |
ICE_EU_COM_DAILY#
Database includes the following Tables:
DAY - Daily price and statistical data, e.g. closing price, settlement price, open interest
STAT - Static data, e.g. ISIN, description, security type
ICE_EU_COM_DAILY - DAY#
Daily price and statistical data, e.g. closing price, settlement price, open interest
Field |
Data Type |
Description |
|---|---|---|
SYMBOL_NAME |
string |
Symbol Name (Exchange Symbol for Equities & ETFs, and Starting with Exchange Product Code for Derivative Markets followed by expiry and strike as appropriate) |
TIMESTAMP |
nsectime |
Event Timestamp (typically at a nano-second resolution) |
UPDATE_TYPE |
string[16] |
Type of update |
OPEN |
double |
Open price for the current trading day |
HIGH |
double |
DAY: High price for the current trading day TRD_1M: Price of the highest-priced eligible trade in the current bar interval |
LOW |
double |
DAY: Low price for the current trading day. TRD_1M: Price of the lowest-priced eligible trade in the current bar interval |
CLOSE |
double |
Closing price |
SETTLE_PRICE |
double |
Settlement price |
SETTLE_DATE |
string[8] |
Trading date to which the settlement price relates (YYYYMMDD) |
VOLUME |
double |
DAY: Total volume traded on the current trading day TRD_1M, VWAP_1H: Total volume of eligible trades in the current bar interval |
OPEN_INT |
double |
Open interest for futures / options |
OPEN_INT_DATE |
string[8] |
Trading date to which the open interest relates (YYYYMMDD) |
OMDSEQ |
uint |
Sequence number allowing ticks of different types at the same timestamp to be sorted into the correct chronological order. e.g. if a trade and a quote have the same timestamp, the one with the lower value of OMDSEQ arrived first. |
ICE_EU_COM_DAILY - STAT#
Static data, e.g. ISIN, description, security type
Field |
Data Type |
Description |
|---|---|---|
SYMBOL_NAME |
string |
Symbol Name (Exchange Symbol for Equities & ETFs, and Starting with Exchange Product Code for Derivative Markets followed by expiry and strike as appropriate) |
TIMESTAMP |
nsectime |
Event Timestamp (typically at a nano-second resolution) |
NAME |
string[200] |
Description of the instrument |
ISIN |
string[12] |
ISIN code |
EXCH_SYMBOL |
string[40] |
Ticker symbol specified by the exchange |
TRADING_CODE |
string[12] |
ID used to identify the instrument in the trading system |
PRODUCT_CODE |
string[20] |
Root code of a futures / options product, as specified by the exchange (e.g. CL for Crude Oil futures on NYMEX). For inter-product spreads, PRODUCT_CODE will include both products, e.g. AB-CD for a spread between products AB and CD. |
UNDERLYING_SYMBOL |
string[32] |
Symbol of the underlying instrument |
UNDERLYING_ISIN |
string[12] |
ISIN of the underlying instrument |
MIC |
string[4] |
Market Identifier Code (MIC, ISO 10383) identifying the market on which the instrument is traded |
OPERATING_MIC |
string[4] |
Market Identifier Code (MIC, ISO 10383) of the exchange that operates the market on which the instrument is traded |
SEC_TYPE |
string[30] |
Security type, e.g. Equity, ETF, Future |
STRATEGY_TYPE |
string[40] |
Type of strategy / spread, e.g. Calendar Spread, Futures Butterfly |
EXCH_STRATEGY_TYPE |
string[10] |
Type of strategy / spread, as specified by the exchange |
CFI_CODE |
string[6] |
Classification of Financial Instruments code (ISO 10962), indicating the type of security |
CURRENCY |
string[3] |
Currency in which the instrument’s price is expressed (or nominal currency for bonds traded as a % of nominal). |
EXPIRATION_DATE |
string[8] |
Date when a derivative expires (YYYYMMDD) |
STRIKE_PRICE |
double |
Exercise price for options / warrants |
CALL_PUT_IND |
string[1] |
C - Call option, P - Put option |
EXERCISE_TYPE |
string[1] |
Option exercise type (A - American, E - European, B - Bermudan, S - Asian) |
CONTRACT_SIZE |
double |
Indicates a derivative’s underlying quantity |
TICK_SIZE |
string[50] |
Tick size / minimum price increment. All order prices must be a multiple of the tick size. |
TICK_VALUE |
double |
Tick value, i.e. the profit / loss per contract resulting from a price movement equal to TICK_SIZE. |
OMDSEQ |
uint |
Sequence number allowing ticks of different types at the same timestamp to be sorted into the correct chronological order. e.g. if a trade and a quote have the same timestamp, the one with the lower value of OMDSEQ arrived first. |