BlackRock Advisors’s ION Geophysical Corporation IO Stock Holding History

BlackRock 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
2016 Q4	$9K	Hold	1,418	–	–	﹤0.01%	3584
2016 Q3	$10K	Hold	1,418	–	–	﹤0.01%	3581
2016 Q2	$9K	Sell	1,418 -2,473	-64%	-$18.5K	﹤0.01%	3607
2016 Q1	$31K	Sell	3,891 -1	-0%	-$6	﹤0.01%	3321
2015 Q4	$29K	Sell	3,892 -2,157	-36%	-$15.4K	﹤0.01%	3384
2015 Q3	$35K	Hold	6,049	–	–	﹤0.01%	3388
2015 Q2	$97K	Buy	6,049 +600	+11%	+$16.1K	﹤0.01%	3186
2015 Q1	$177K	Buy	5,449 +706	+15%	+$25.3K	﹤0.01%	2749
2014 Q4	$196K	Sell	4,743 -268	-5%	-$10.5K	﹤0.01%	2639
2014 Q3	$210K	Sell	5,011 -37,834	-88%	-$2.02M	﹤0.01%	2578
2014 Q2	$2.71M	Sell	42,845 -2,888	-6%	-$182K	﹤0.01%	1095
2014 Q1	$2.89M	Sell	45,733 -18,542	-29%	-$1.02M	﹤0.01%	1085
2013 Q4	$3.18M	Buy	64,275 +17,992	+39%	+$1.09M	﹤0.01%	1071
2013 Q3	$3.61M	Buy	46,283 +40,415	+689%	+$3.32M	﹤0.01%	1044
2013 Q2	$530K	Buy	+5,868	New	+$548K	﹤0.01%	1784

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

GCM

Gates Capital Management New York $3.66B AUM 12.63% 1-Year Est. Return

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

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

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

BIT

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

SIM

Spark Investment Management New York $41.6M AUM 80.97% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

BCM

Bridgeway Capital Management Houston, Texas $4.97B AUM 44.96% 1-Year Est. Return

BlackRock Advisors's IO Position: Q4 2016 in Review

BlackRock Advisors held its ION Geophysical Corporation (IO) position steady in Q4 2016 at 1,418 shares worth $9K. The position accounts for ﹤0.01% of the portfolio, ranked #3584.

BlackRock Advisors first reported a position in IO in Q2 2013 and has held it in 15 quarters since. The position peaked at $3.61M in Q3 2013. 66 funds tracked by Wall St. Rank hold IO as of Q4 2016.

BlackRock Advisors held 1,418 shares of ION Geophysical Corporation worth $9K as of Q4 2016.
BlackRock Advisors left its ION Geophysical Corporation share count unchanged in Q4 2016.
ION Geophysical Corporation made up ﹤0.01% of BlackRock Advisors's portfolio in Q4 2016, its #3584 holding.
BlackRock Advisors first reported a position in ION Geophysical Corporation in Q2 2013 and has held it in 15 quarters since.
BlackRock Advisors's ION Geophysical Corporation position peaked at $3.61M in Q3 2013.
66 funds tracked by Wall St. Rank held ION Geophysical Corporation as of Q4 2016.

Based on BlackRock Advisors's 13F filing for Q4 2016, filed 10 Feb 2017.