Totally there are 10 little icons (5 on the left and 5 on the right). Here is how I understand them: 1) Gold 2) Silver 3) copper 4) ??? 5) petroleum 6) securities 7) agricultural commodities 8) real estate 9) industrial machinery/equipment 10) breakthrough energy

A few days ago, the tenth icon was different and referred specifically to the element Thorium on the periodic table. So it raises the question of why they changed that icon.

I'm befuddled by the fourth icon. To me, there is a whispy "U.S." there but the background looks vaguely like the Looking Glass technology that Bill Brockbrader talked about. It might be a reference to quantum computing in general.