Our Terms of Service and Privacy Policy have changed.

By continuing to use this site, you are agreeing to the new Privacy Policy and Terms of Service.

Ion Geophysical Corp (NYSE:IO)

Delayed Data
As of Jul 22
 +0.02 / +0.36%
Today’s Change
Today|||52-Week Range
Institutional investors purchased a net $495.0 thousand shares of IO during the quarter ended March 2016. This may signal that the smart money is gaining interest in this company as the 40.50% of shares outstanding that institutional investors hold is actually below the Oilfield Services/Equipment industry average.
Mutual fund holders25.98%
Other institutional14.53%
Individual stakeholders10.71%

Largest Quarterly Institutional

Latest Institutional Activity

5/31/2016PRINCIPAL MANAGEMENT CORP.  Bought 1.4 Thousand shares of Ion Geophysical Corp
4/30/2016EACM ADVISORS LLC  Sold 1.00 shares of Ion Geophysical Corp
6/30/2016CREATIVE PLANNING, INC.  Sold 200.00 shares of Ion Geophysical Corp

Top 10 Owners of Ion Geophysical Corp

Total value ($)Shares
bought / sold
Invesco Advisers, Inc.7.85%943,9595,880,865-48-0.01%
Invesco Canada Ltd.7.28%874,9785,451,113-44,984-4.89%
BlackRock Fund Advisors3.86%463,7002,888,851-10,835-2.28%
The Vanguard Group, Inc.3.52%423,3532,637,489+3,898+0.93%
Dimensional Fund Advisors LP2.26%272,0911,695,127-7,506-2.68%
Neuberger Berman Investment Advis...1.57%188,5961,174,953-8,927-4.52%
Renaissance Technologies LLC1.41%169,7821,057,742-4,393-2.52%
SSgA Funds Management, Inc.1.34%161,6461,007,055+13,880+9.39%
Norges Bank Investment Management1.10%132,278824,092-7,035-5.05%
Northern Trust Investments, Inc.0.83%99,156617,742-1,271-1.27%

Top 10 Mutual Funds Holding Ion Geophysical Corp

Mutual fundStakeShares
Total value ($)Shares
bought / sold
Invesco Select Companies Fund7.80%938,4865,846,76800.00%
Trimark Canadian Small Companies ...5.62%675,6864,209,524-207,090-23.46%
Vanguard Total Stock Market Index...1.47%176,8751,101,931+2,127+1.22%
Government Pension Fund - Global ...1.10%132,278824,092-2,895-2.14%
Vanguard Institutional Total Stoc...1.05%126,182786,114-2,027-1.58%
Trimark US Small Companies Class1.04%124,532775,834-6-0.00%
Vanguard Extended Market Index Fu...0.81%97,515607,51800.00%
Royce Value Trust0.60%71,880447,812-4-0.01%
DFA US Micro Cap Portfolio0.57%68,868429,048-1,569-2.23%
DFA US Small Cap Portfolio0.55%66,679415,410-4-0.01%