GEOSPACE TECHNOLOGIES CORP

Ticker: GEOS CUSIP: 37364X109 Class: Common Stock

Virtu Financial LLC's Holding History (CIK: 0001533964)

Note: Option positions (PUT/CALL) are excluded.

Q4 2017

Shares 13,259 Value ($000) $172 Avg Close $15.45 Range $12.09 - $18.71

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	13,259	$172	$15.45	$12.09 - $18.71