GEOSPACE TECHNOLOGIES CORP

Ticker: GEOS CUSIP: 37364X109 Class: Common Stock

Horizon Investment Services, LLC's Holding History (CIK: 0001426940)

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

Q4 2013

Shares 2,526 Value ($000) $239 Avg Close $91.95 Range $79.60 - $107.93

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2013	2,526	$239	$91.95	$79.60 - $107.93