There is absolutely nothing wrong the the AMEX. Not sure how or where you read that in my post that I thought it was a problem. I realize that reading comprehension can be a problem for some.

I mention AMEX due to listing requirements that AMBS can meet. Unless something changes, the company is not structured to meet NASDAQ uplisting requirements from what I have read. Corrections welcome. And just because I am an expert doesn't mean I still can't learn something new or be persuaded to change my views.