I'm attaching two symbol lists:
Included_symbols.csv contains the symbols in the EdgeRater data
excluded_symbols.csv contains the symbols that were explicitly excluded and do not appear in the data
The total number of symbols in the available symbol universe is 8749.
The total number of included symbols is 6757
The main reason for not including everything in the master database is that it takes extra time to download, update and access. Also would take extra disk space on your PC. The included symbols are compiled based on likelihood that someone would actually be interested or want to trade that symbol. For instance, excluded multiple series of certain depository shares such as:
AFSI.P.A AmTrust Financial Services Inc. Preferred Series A
AFSI.P.B AmTrust Financial Services Inc. Depository Shares Series B
AFSI.P.C AmTrust Financial Services Inc. Depository Shares Series C
AFSI.P.D AmTrust Financial Services Inc. Depositary Shares Series D
AFSI.P.E AmTrust Financial Services Inc. Depositary Shares Series E
AFSI.P.F AmTrust Financial Services Inc. Depositary Shares Series F
If there is something in the excluded list that you would like to see included please let me know and it can be done. Please state the reason for including it too because I have to weigh the extra overhead and performance impact against the applicability for majority of users.