I don't. But will check it out. I learned to not keep any nugt or dust for long time. They can easily go down +/- 20 and I had to wait months to recover. I am happy as long as I make money. Buy and sell the same day or the next day is working fine for me as long as they are in my comfortable level. Under $11 is a very low risk for me compare to days i thought $25 was very safe :( still learning.