OAM
IO

Oberweis Asset Management’s ION Geophysical Corporation IO Stock Holding History

Oberweis Asset Management’s Portfolio IO Stock Details IO Fund Activity
Quarter Market Value Status Shares Shares
Change % 		Trade Value Portfolio Weight Portfolio Position
2018
Q3 		– Sell
-38,925
Closed -$946K – 245
2018
Q2 		$946K Buy
38,925
+8,700
+29% +$211K 0.24% 100
2018
Q1 		$819K Buy
+30,225
New +$819K 0.22% 102