"Event Id"|"Underlying"|"Symbol"|"Exchange"|"Type"|"Start Datetime"|"End Datetime"|"Average Bid Size"|"Average Ask Size"|"Average Spread"
"201608181200002"|"WMB"|"WMB_160902C26.5"|"NYSA"|"Straddle"|"20160818 13:21:32"|"20160818 13:21:32"|405|254|2.03
"201608181200002"|"WMB"|"WMB_160902C27.5"|"NYSA"|"Straddle"|"20160818 13:21:32"|"20160818 13:21:32"|466|228|1.91
"201608181200002"|"WMB"|"WMB_160909C27."|"NYSA"|"Straddle"|"20160818 13:21:32"|"20160818 13:21:32"|573|206|2.03
"201608233100037"|"CLVS"|"CLVS_160916C10."|"NYSA"|"Limit"|"20160823 14:30:18"|"20160823 14:30:33"|3|4|4.66
"201608300900001"|"POT"|"POT_160930C17.5"|"NYSA"|"Straddle"|"20160830 09:51:44"|"20160830 09:51:44"|19|2|3.29
"201608300900002"|"POT"|"POT_160930C17.5"|"NYSA"|"Straddle"|"20160830 09:51:44"|"20160830 09:51:44"|19|2|3.29
"201608300900003"|"POT"|"POT_160930C17.5"|"NYSA"|"Limit"|"20160830 09:51:44"|"20160830 09:51:44"|19|2|3.29
"201608300900004"|"POT"|"POT_160930C17.5"|"NYSA"|"Straddle"|"20160830 09:51:44"|"20160830 09:51:44"|19|2|3.29
"201608300900005"|"POT"|"POT_160930C17.5"|"NYSA"|"Limit"|"20160830 09:51:44"|"20160830 09:51:44"|19|2|3.29
"201608300900006"|"POT"|"POT_160930C17.5"|"NYSA"|"Straddle"|"20160830 09:51:44"|"20160830 09:51:44"|19|2|3.29
"201608300900007"|"POT"|"POT_160930C17.5"|"NYSA"|"Limit"|"20160830 09:51:44"|"20160830 09:51:44"|19|2|3.29
"201608300900008"|"POT"|"POT_160930C17.5"|"NYSA"|"Straddle"|"20160830 09:51:44"|"20160830 09:51:44"|19|2|3.29
"201608300900009"|"POT"|"POT_160930C17.5"|"NYSA"|"Limit"|"20160830 09:51:44"|"20160830 09:51:44"|19|2|3.29
"201608300900010"|"POT"|"POT_160930C17.5"|"NYSA"|"Straddle"|"20160830 09:51:44"|"20160830 09:51:45"|19|2|4.03