Cambridge Investment Research Advisors’s ION Geophysical Corporation IO Stock Holding History

Cambridge Investment Research Advisors’s Portfolio IO Stock Details IO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2015 Q1	–	Sell	-966	Closed	-$40K	–	1474
2014 Q4	$40K	Sell	966 -166	-15%	-$6.53K	﹤0.01%	1334
2014 Q3	$47K	Buy	1,132 +122	+12%	+$6.53K	﹤0.01%	1428
2014 Q2	$64K	Sell	1,010 -941	-48%	-$59.3K	﹤0.01%	1302
2014 Q1	$123K	Buy	1,951 +1,132	+138%	+$62K	﹤0.01%	1221
2013 Q4	$41K	Buy	819 +27	+3%	+$1.64K	﹤0.01%	1213
2013 Q3	$62K	Hold	792	–	–	﹤0.01%	1163
2013 Q2	$72K	Buy	+792	New	+$73.9K	﹤0.01%	1073

Other funds holding IO

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BFA

BlackRock Fund Advisors San Francisco, California $542B AUM 18.13% 1-Year Est. Return

Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

BIT

BlackRock Institutional Trust San Francisco, California $675B AUM 16.07% 1-Year Est. Return

Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Norges Bank Oslo, Norway $935B AUM

Putnam Investments Boston, Massachusetts $75.7B AUM 34.45% 1-Year Est. Return

Cambridge Investment Research Advisors's IO Position: Q1 2015 in Review

Cambridge Investment Research Advisors sold out of ION Geophysical Corporation (IO) in Q1 2015, closing a stake of 966 shares — an estimated $40K sold.

Cambridge Investment Research Advisors first reported a position in IO in Q2 2013 and held it in 7 quarters. The position peaked at $123K in Q1 2014. 135 funds tracked by Wall St. Rank hold IO as of Q1 2015.

Cambridge Investment Research Advisors reported no remaining ION Geophysical Corporation position as of Q1 2015 after selling out during the quarter.
Cambridge Investment Research Advisors sold 966 ION Geophysical Corporation shares in Q1 2015, an estimated $40K.
Cambridge Investment Research Advisors first reported a position in ION Geophysical Corporation in Q2 2013 and held it in 7 quarters.
Cambridge Investment Research Advisors's ION Geophysical Corporation position peaked at $123K in Q1 2014.
135 funds tracked by Wall St. Rank held ION Geophysical Corporation as of Q1 2015.

Based on Cambridge Investment Research Advisors's 13F filing for Q1 2015, filed 4 May 2015.