diff --git a/fin_defs/__init__.py b/fin_defs/__init__.py
index 9e66851..58015ff 100644
--- a/fin_defs/__init__.py
+++ b/fin_defs/__init__.py
@@ -283,6 +283,11 @@ EXCHANGES = [
     StockExchange(name='Australian Securities Exchange', mic='XASX'),
     StockExchange(name='Johannesburg Stock Exchange', mic='XJSE'),
     StockExchange(name='Tehran Stock Exchange', mic='XTEH'),
+    StockExchange(name='Over The Counter (Unlisted)', mic='OTC'), # TODO: Unofficial
+
+    StockExchange(name='NYSE Arca', mic='ARCX'),
+    StockExchange(name='BATS Global Markets', mic='BATS'),
+    StockExchange(name='NYSE American', mic='XASE'),
 ]
 
 EXCHANGES_BY_IDS = {}