"Event Id"|"Underlying"|"Symbol"|"Exchange"|"Type"|"Start Datetime"|"End Datetime"|"Average Bid Size"|"Average Ask Size"|"Average Spread"
"201602020100001"|"ALLY"|"ALLY_160318C15."|"NYSA"|"Straddle"|"20160202 10:10:56"|"20160202 10:10:56"|217|557|1.34
"201602020100001"|"ALLY"|"ALLY_160617P15."|"NYSA"|"Straddle"|"20160202 10:10:56"|"20160202 10:10:56"|366|391|0.56
"201602102100015"|"TRXC"|"TRXC_160415C2.5"|"NYSA"|"Limit"|"20160210 10:08:57"|"20160210 10:08:58"|147|221|0.44
"201602110900006"|"P"|"P_160219C10."|"NYSA"|"Limit"|"20160211 14:17:01"|"20160211 14:17:16"|17|19|0.15
"201602250500001"|"ETE"|"ETE_170120C21.25"|"NYSA"|"Straddle"|"20160225 14:40:54"|"20160225 14:40:54"|0|19|0.28
"201602250500002"|"ETE"|"ETE_170120C21.25"|"NYSA"|"Limit"|"20160225 14:40:54"|"20160225 14:41:01"|45|53|3.08