BlackRock Investment Management’s ION Geophysical Corporation IO Stock Holding History

BlackRock Investment Management’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	$10K	Hold	1,610	–	–	﹤0.01%	3606
2016 Q3	$11K	Hold	1,610	–	–	﹤0.01%	3583
2016 Q2	$10K	Sell	1,610 -33,019	-95%	-$247K	﹤0.01%	3656
2016 Q1	$280K	Buy	34,629 +803	+2%	+$4.68K	﹤0.01%	3093
2015 Q4	$255K	Sell	33,826 -3,683	-10%	-$26.2K	﹤0.01%	3188
2015 Q3	$219K	Sell	37,509 -406	-1%	-$4.28K	﹤0.01%	3236
2015 Q2	$609K	Buy	37,915 +6,590	+21%	+$177K	﹤0.01%	3066
2015 Q1	$1.02M	Hold	31,325	–	–	﹤0.01%	2508
2014 Q4	$1.29M	Sell	31,325 -154	-0.5%	-$6.06K	﹤0.01%	2368
2014 Q3	$1.32M	Buy	31,479 +257	+0.8%	+$13.7K	﹤0.01%	2325
2014 Q2	$1.98M	Sell	31,222 -2,610	-8%	-$164K	﹤0.01%	2078
2014 Q1	$2.14M	Buy	33,832 +549	+2%	+$30.1K	﹤0.01%	1994
2013 Q4	$1.65M	Sell	33,283 -516	-2%	-$31.3K	﹤0.01%	2158
2013 Q3	$2.64M	Buy	33,799 +474	+1%	+$39K	﹤0.01%	1755
2013 Q2	$3.01M	Buy	+33,325	New	+$3.11M	0.01%	1564

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 Investment Management's IO Position: Q4 2016 in Review

BlackRock Investment Management held its ION Geophysical Corporation (IO) position steady in Q4 2016 at 1,610 shares worth $10K. The position accounts for ﹤0.01% of the portfolio, ranked #3606.

BlackRock Investment Management first reported a position in IO in Q2 2013 and has held it in 15 quarters since. The position peaked at $3.01M in Q2 2013. 66 funds tracked by Wall St. Rank hold IO as of Q4 2016.

BlackRock Investment Management held 1,610 shares of ION Geophysical Corporation worth $10K as of Q4 2016.
BlackRock Investment Management left its ION Geophysical Corporation share count unchanged in Q4 2016.
ION Geophysical Corporation made up ﹤0.01% of BlackRock Investment Management's portfolio in Q4 2016, its #3606 holding.
BlackRock Investment Management first reported a position in ION Geophysical Corporation in Q2 2013 and has held it in 15 quarters since.
BlackRock Investment Management's ION Geophysical Corporation position peaked at $3.01M in Q2 2013.
66 funds tracked by Wall St. Rank held ION Geophysical Corporation as of Q4 2016.

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