Arizona State Retirement System’s ION Geophysical Corporation IO Stock Holding History

Arizona State Retirement System’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	-4,113	Closed	-$24K	–	1485
2015 Q3	$24K	Buy	+4,113	New	+$43.4K	﹤0.01%	1468
2014 Q4	$244K	Buy	5,938 +20	+0.3%	+$786	﹤0.01%	1464
2014 Q3	$247K	Sell	5,918 -253	-4%	-$13.5K	﹤0.01%	1449
2014 Q2	$390K	Buy	6,171 +80	+1%	+$5.04K	﹤0.01%	1385
2014 Q1	$384K	Sell	6,091 -313	-5%	-$17.1K	﹤0.01%	1384
2013 Q4	$317K	Sell	6,404 -874	-12%	-$53K	﹤0.01%	1434
2013 Q3	$567K	Buy	7,278 +7	+0.1%	+$575	0.01%	1322
2013 Q2	$656K	Buy	+7,271	New	+$679K	0.01%	1237

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

Arizona State Retirement System's IO Position: Q4 2015 in Review

Arizona State Retirement System sold out of ION Geophysical Corporation (IO) in Q4 2015, closing a stake of 4,113 shares — an estimated $24K sold.

Arizona State Retirement System first reported a position in IO in Q2 2013 and held it in 8 quarters. The position peaked at $656K in Q2 2013. 88 funds tracked by Wall St. Rank hold IO as of Q4 2015.

Arizona State Retirement System reported no remaining ION Geophysical Corporation position as of Q4 2015 after selling out during the quarter.
Arizona State Retirement System sold 4,113 ION Geophysical Corporation shares in Q4 2015, an estimated $24K.
Arizona State Retirement System first reported a position in ION Geophysical Corporation in Q2 2013 and held it in 8 quarters.
Arizona State Retirement System's ION Geophysical Corporation position peaked at $656K in Q2 2013.
88 funds tracked by Wall St. Rank held ION Geophysical Corporation as of Q4 2015.

Based on Arizona State Retirement System's 13F filing for Q4 2015, filed 12 Feb 2016.