ponzoBLOG: Up X%

After returning from our week in Mexico, I was surprised to find that one of my coal stocks increased by 20% during the week.

So I whip out a spreadsheet and count the number of times (over the past year) that one of them thar penny stocks increased by 10%, 15%, 20% ... in a week. Does that happen often?

(Click to enlarge the chart.)

Note that WTN and GCE are right up there!
'course, they may very well decrease by 15%, too ... right?
So I check that.
GCE did decrease by 15% (or more) about 2% of the time (over the past year).
WTN never did.

Maybe it's more frequent with penny stocks, eh?

For DOW stocks, only AIG had a weekly decrease of 15%.
How about increasing by 15%?