Teacher Retirement System of Texas’s ION Geophysical Corporation IO Stock Holding History

Teacher Retirement System of Texas’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 Q4	–	Sell	-1,077	Closed	-$6K	–	2657
2015 Q3	$6K	Buy	1,077 +737	+217%	+$7.77K	﹤0.01%	2528
2015 Q2	$5K	Buy	340 +75	+28%	+$2.01K	﹤0.01%	2536
2015 Q1	$9K	Hold	265	–	–	﹤0.01%	2385
2014 Q4	$11K	Sell	265 -59	-18%	-$2.32K	﹤0.01%	2290
2014 Q3	$14K	Hold	324	–	–	﹤0.01%	2043
2014 Q2	$20K	Hold	324	–	–	﹤0.01%	1984
2014 Q1	$20K	Buy	324 +11	+4%	+$602	﹤0.01%	1773
2013 Q4	$16K	Sell	313 -724	-70%	-$43.9K	﹤0.01%	1914
2013 Q3	$81K	Buy	1,037 +469	+83%	+$38.6K	﹤0.01%	1861
2013 Q2	$51K	Buy	+568	New	+$53K	﹤0.01%	1686

Other funds holding IO

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

CPS

Counsel Portfolio Services Mississauga, Ontario, Canada $1.01B AUM 2.83% 1-Year Est. Return

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

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

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

BFA

BlackRock Fund Advisors San Francisco, California $542B AUM 18.13% 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

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

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

Teacher Retirement System of Texas's IO Position: Q4 2015 in Review

Teacher Retirement System of Texas sold out of ION Geophysical Corporation (IO) in Q4 2015, closing a stake of 1,077 shares — an estimated $6K sold.

Teacher Retirement System of Texas first reported a position in IO in Q2 2013 and held it in 10 quarters. The position peaked at $81K in Q3 2013. 88 funds tracked by Wall St. Rank hold IO as of Q4 2015.

Teacher Retirement System of Texas reported no remaining ION Geophysical Corporation position as of Q4 2015 after selling out during the quarter.
Teacher Retirement System of Texas sold 1,077 ION Geophysical Corporation shares in Q4 2015, an estimated $6K.
Teacher Retirement System of Texas first reported a position in ION Geophysical Corporation in Q2 2013 and held it in 10 quarters.
Teacher Retirement System of Texas's ION Geophysical Corporation position peaked at $81K in Q3 2013.
88 funds tracked by Wall St. Rank held ION Geophysical Corporation as of Q4 2015.

Based on Teacher Retirement System of Texas's 13F filing for Q4 2015, filed 5 Feb 2016.