combo.rb in ib-symbols-1.2

- old
+ new
@@ -15,10 +15,10 @@
 				 stoxx_butterfly: IB::Butterfly.fabricate( Symbols::Options.stoxx.merge( strike: 3300), front: 3250, back: 3350 ),
 				 stoxx_vertical: IB::Vertical.build( from: IB::Symbols::Index.stoxx, sell: 3000, buy: 3500, right: :put, 
 																							expiry: IB::Symbols::Futures.next_expiry, trading_class: 'OESX'),
 					zn_calendar: IB::Calendar.fabricate( IB::Symbols::Futures.zn, '3m') ,
 
-				 dbk_straddle: Bag.new( symbol: 'DBK', currency: 'EUR', exchange: 'DTB', combo_legs:
+				 dbk_straddle: Bag.new( symbol: 'DBK', currency: 'EUR', exchange: 'EUREX', combo_legs:
 												 [  ComboLeg.new( con_id: 270581032 , action: :buy, exchange: 'DTB', ratio: 1),   #DBK Dez20 2018 C 
 													ComboLeg.new( con_id: 270580382,  action: :buy, exchange: 'DTB', ratio: 1 ) ], #DBK Dez 20 2018 P
 													 description: 'Option Straddle: Deutsche Bank(20)[Dez 2018]'
 																														),
 					ib_mcd: Bag.new( symbol: 'IBKR,MCD', currency: 'USD', combo_legs: