GDX was on my screen after the close. An hour or two later I accidentally hit refresh and the closing price changed.
That's is so comforting...
NYSE Trading 'Glitch'... Price Confusion...
At least $150 billion of exchange-traded funds said to be affected, including world’s largest gold ETF
Edited by Rogerdodger, 20 March 2017 - 08:13 PM.