MatchType Field

The point in the matching process at which this trade was matched.  
Valid values:  
For NYSE and AMEX:  
A1 = Exact match on Trade Date, Stock Symbol, Quantity, Price, Trade Type, and Special Trade Indicator plus four badges and execution time (within two-minute window)  
A2 = Exact match on Trade Date, Stock Symbol, Quantity, Price, Trade Type, and Special Trade Indicator plus four badges  
A3 = Exact match on Trade Date, Stock Symbol, Quantity, Price, Trade Type, and Special Trade Indicator plus two badges and execution time (within two-minute window)  
A4 = Exact match on Trade Date, Stock Symbol, Quantity, Price, Trade Type, and  
Special Trade Indicator plus two badges  
A5 = Exact match on Trade Date, Stock Symbol, Quantity, Price, Trade Type, and Special Trade Indicator plus execution time (within two-minute window)  
AQ = Compared records resulting from stamped advisories or specialist  
accepts/pair-offs  
S1 to S5 = Summarized Match using A1 to A5 exact match criteria except quantity is summarized  
M1 = Exact Match on Trade Date, Stock Symbol, Quantity, Price, Trade Type, and Special Trade Indicator minus badges and times  
M2 = Summarized Match minus badges and times  
MT = OCS Locked In  
For NASDAQ:  
M1 = ACT M1 Match  
M2 = ACT M2 Match  
M3 = ACT Accepted Trade  
M4 = ACT Default Trade  
M5 = ACT Default After M2  
M6 = ACT M6 Match  
MT = Non-ACT  
 

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