"In fact, as we shall show reverse splits provide a decidedly negative signal to the market in that they are a confirmation of poor performance. This is particularly the case when they are enacted for the purpose of maintaining a listing on an exchange because the firm doing the reverse split has not been able to meet the listing requirements."
"Since it's done for purely cosmetic reasons and doesn't change a company's finances, the market knows it and the company gets penalized. Most companies end up seeing their stock prices continue to slide," said Pamela Peterson, a finance professor at Florida State University and co-author of a 1992 research report, "A further understanding of stock distribution: The case of reverse stock splits."
This one isn't relevant to PPHM since it doesn't have significant earnings, but it's an important paper from the perspective of post R/S performance of companies that do: