When you look at companies that file form 15s (not for deregistration of a retirement stock) and were already in the Nasdaq exchange or higher, then yes, it would likely be a poor investment strategy to invest in them. As I recall from a massive survey on this, their stock value drops on the average by ~90% from the date of filing. (Note NTEK filed in June or July of 2012, and it tumbled from .07 or so to roughly .0008 by December of 2012. Then in Feb of 2013 or so the stock value steadily increased by thousands of percentage points)
But when you are talking about a fledgling company like NTEK, the form 15 filing takes on a different meaning. It was plausibly done for cost saving and capital building purposes.
They were too small to go public in the beginning IMO. They filed the form 15 to correct that mistake (mistake due to costs incurred from keeping current with the SEC) IMHO.
$NTEK
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