Exchange Codes

Several thinkorswim components use a single-letter coding for exchange names. Refer to the tables below for explication.

Options Stocks
Letter Exchange Letter Exchange
A NYSE Amex A NYSE AMEX
B BOX B BOX
C CBOE C CINN
E EDGX D ECN BEST
H ISE Gemini F MF/MM
I ISE I ISEG
J ISE Mercury J EDGA
K EDGX K EDGX
M MIAX M CHXE
N NYSE Arca N NYSE Arca
P PSE Q NASDAQ
Q NASDAQ S NASDAQ SC
T NASDAQ OMX BX Options T NASDAQ INT
W C2 U OTCBB
X PHLX Z BATS
Z BATS V OTC OTHER
    W CBOE
    X PHLX
    Y BATS Y-Exchange
    Z BATS

 

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