Aperio Group’s ION Geophysical Corporation IO Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2015
Q1
Sell
-911
Closed -$38K 2025
2014
Q4
$38K Buy
911
+25
+3% +$1.04K ﹤0.01% 1862
2014
Q3
$37K Sell
886
-1,804
-67% -$75.3K ﹤0.01% 1727
2014
Q2
$170K Buy
2,690
+156
+6% +$9.86K ﹤0.01% 1641
2014
Q1
$160K Buy
+2,534
New +$160K ﹤0.01% 1904