"Event Id"|"Underlying"|"Symbol"|"Exchange"|"Type"|"Start Datetime"|"End Datetime"|"Average Bid Size"|"Average Ask Size"|"Average Spread"
"201507161100013"|"TE"|"TE_150821C20."|"NYSA"|"Limit"|"20150716 14:33:43"|"20150716 14:33:51"|162|6|0.22
"201507161100020"|"TE"|"TE_150821C20."|"NYSA"|"Limit"|"20150716 14:33:56"|"20150716 14:33:59"|154|149|0.24
"201507243100010"|"ESPR"|"ESPR_150918C145."|"NYSA"|"Straddle"|"20150724 14:20:33"|"20150724 14:20:43"|0|1|1.78
"201507301000025"|"RGC"|"RGC_150821C22.5"|"NYSA"|"Straddle"|"20150730 12:24:50"|"20150730 12:24:53"|32|18|0.26
"201507301000060"|"RGC"|"RGC_150821C22.5"|"NYSA"|"Straddle"|"20150730 12:25:58"|"20150730 12:26:03"|12|38|0.75
"201507301000064"|"RGC"|"RGC_150821C22.5"|"NYSA"|"Straddle"|"20150730 12:26:13"|"20150730 12:26:15"|11|5|0.31
"201507301000065"|"RGC"|"RGC_150821C22.5"|"NYSA"|"Straddle"|"20150730 12:26:15"|"20150730 12:26:16"|11|5|0.29